John Deere D170 : Parts, Manuals, Diagrams, Specs

John Deere D170

The John Deere D170 is a high-end lawn tractor in the 100 series, designed for large yards and demanding mowing tasks. It features a powerful 25-26 HP Briggs & Stratton V-Twin engine with Extended Life Service (ELS) designation, providing durability and longevity. The engine benefits from advanced features such as cast iron piston sleeves, full pressure lubrication, and a dual-sealed large capacity cartridge air filter.

The D170 comes equipped with a 54-inch Edge Cutting System mower deck, which uses three blades to deliver a precise and even cut. The deck’s cutting height can be adjusted from 1 to 4 inches without leaving the seat, thanks to a spring-assisted mechanism. For easy maintenance, a washout port is provided for cleaning the deck.

This model utilizes a Kanzaki TuffTorq K46 hydrostatic transmission, controlled by John Deere’s patented two-pedal system. This setup offers smooth operation and infinite control over forward and reverse speeds. The D170 also includes a standard cruise control function for added convenience during long mowing sessions.

The tractor’s dimensions are impressive, with a wheelbase of 48.9 inches, a length of 69.25 inches, and a width of 68.5 inches with the mower deck. It stands 45 inches tall and weighs 579 lbs with the mower deck attached. The D170 features 16×6.5-8 front tires and 22×9.5-12 rear tires, providing excellent traction and stability.

Other notable features include an 18-inch turning radius for excellent maneuverability, a solid welded frame for durability, and a 4-gallon fuel tank (2.4 gallons for California models). The operator station is designed for comfort, with an adjustable 15-inch tall seat featuring 5.5 inches of travel in ten positions and lumbar adjustment. Additional amenities include a fender-mounted cup holder and an optional 12-volt power outlet.

Frequently Asked Questions about the John Deere D170

What is the cutting width of the John Deere D170?
The John Deere D170 features a cutting deck that is 54 inches wide, allowing for efficient mowing of larger areas.

How powerful is the engine?
The D170 is equipped with a 26 hp V-twin engine, providing ample power for various mowing tasks.

What is the adjustable cutting height range?
The cutting height can be adjusted between 1 inch and 4 inches, enabling users to customize their mowing experience based on grass length and conditions.

How does the transmission work?
This model uses a hydrostatic transmission, which allows for smooth and easy transitions between speeds without the need for gear shifting.

Is there a cruise control feature?
Yes, the John Deere D170 includes a cruise control function that helps maintain a steady speed during mowing.

What are the wheel sizes?
The front wheels are 16 inches in diameter, while the rear wheels measure 22 inches, contributing to a stable ride.

How much does the John Deere D170 weigh?
The weight of the John Deere D170 lawn tractor is approximately 600 pounds.

What maintenance is required for the D170?
Regular maintenance includes changing the engine oil and filter, checking and adjusting the mower deck belt tension, cleaning or replacing air filters, and lubricating various components. Specific intervals for these tasks are outlined in the owner’s manual.

What common parts might need replacement?
Commonly replaced parts include mower blades, belts, filters, and ignition switches. Regular servicing can help prolong the life of these components.

Can I mow in low light conditions?
Yes, the D170 is equipped with headlights, making it possible to mow in low light conditions safely.These FAQs provide essential information for potential buyers and current owners of the John Deere D170 lawn tractor.

The John Deere D170 lawn tractor is available in both new and used conditions, with prices varying based on the model year and condition.

For new D170 models, the starting price is typically around $2,799. However, some retailers may offer it at a higher price point of approximately $6,247 to $6,732.

Used D170 models show a wide range of prices depending on their age and condition:

– Older models (2014-2015) can be found for around $1,400 to $2,200.
– More recent used models (2017) are priced at about $3,000.
– Some well-maintained used D170 tractors from 2015 may be listed for as high as $4,249.

It’s worth noting that prices can fluctuate based on location, seller, and current market conditions. Additionally, some retailers or dealerships may offer promotions or discounts that could affect the final price. Potential buyers should always check current listings and compare prices from multiple sources to find the best deal for their needs.

John Deere D170 Specs

The John Deere D170 lawn tractor uses a belt system to drive its mower deck,  the belt routing for the D170 can be described as follows:

Belt Configuration

The mower drive belt is routed around several key components:

• Engine pulley
• Idler pulleys
• Tension pulley
• Mower deck spindle pulleys

Belt Path

The belt starts at the engine pulley and follows a path that includes:

1. Wrapping around the engine pulley
2. Passing through guide pulleys
3. Looping around tension pulleys for proper tightness
4. Connecting to the mower deck spindles

Deck Configuration

The D170 typically features a 54-inch mower deck with:

• Three spindles (one for each blade)
• Multiple idler pulleys to guide the belt

Belt Specifications

For the D170 model:

• Belt length: Approximately 2258 mm
• Belt thickness: About 8.90 mm
• Belt width: Roughly 12.70 mm

When replacing the belt, it’s crucial to follow the correct routing path to ensure proper operation and prevent premature wear. The belt should be checked regularly for signs of wear or damage, and replaced as needed to maintain optimal mowing performance.

John Deere D170 Problems

The John Deere D170 lawn tractor, while popular, has been known to experience several issues:

Transmission Problems

The D170 is equipped with a Kanzaki TuffTorq K46 hydrostatic transmission, which is prone to failure, especially when used on hilly terrain. Common symptoms include:

• Loss of power when climbing hills
• Difficulty moving uphill as the tractor warms up
• Slipping or whining sounds from the transmission
• Complete transmission failure, sometimes occurring at low hours of use

Engine Issues

Some users have reported engine-related problems, such as:

• Difficulty starting
• Loss of power during operation
• Stalling or bogging down in thick or tall grass

Mower Deck Concerns

The 54-inch mower deck can experience issues like:

• Belt problems, including frequent breakage or slipping
• Deck buckling under heavy loads of tall, thick grass

PTO (Power Take-Off) Malfunctions

Occasionally, users have encountered problems with the PTO system, which may be due to:

• Faulty PTO switch
• Defective PTO clutch

Traction Issues

Some D170 owners have reported difficulty with traction, particularly on slopes or in wet conditions. This may be due to:

• Inadequate tire grip
• Lightweight design of the tractor

Maintenance Challenges

Regular maintenance is crucial for the D170, with particular attention needed for:

• Greasing idler pulley bearings
• Maintaining spindle bearings on the mower deck

While the John Deere D170 can be a capable machine for flat terrain and moderate use, its limitations become apparent in more demanding conditions or with heavy use. Potential buyers should consider these issues, especially if they have hilly property or require a more robust machine for challenging mowing tasks.

John Deere D170 Parts

he John Deere D170 lawn tractor has numerous parts available for maintenance and repair. Here’s an overview of key components:

Engine Parts

• Engine oil filter (AM125424)
• Fuel filter (AM116304)
• Air filter pre-cleaner (MIU11517)
• Air filter cartridge (MIU11515)
• Spark plug (M78543 for USA/Canada, MIU11020 for other regions)
• Engine oil (Turf-Gard 10W30, 1.9L capacity with filter)

Transmission

• Traction drive belt (GX20006)

Mower Deck

• 54-inch mower deck
• Mower blades (GY20679 for standard 3-in-1, GY20684 for side discharge, GY20686 for mulch)
• Flat mower belt (GX21395)
• Gage wheel (GX10168)

Electrical

• Battery (TY25221B for USA/Canada, MCYP340PF for other regions)
• Headlight bulb (AD2062R)
• Ignition switch (GY20074)
• Ignition key (GY20680)

Fuel System

• Fuel tank filler cap (GX22166 for earlier models, AUC18428 for later models)

Controls

• Throttle cable (GY21308)
• Plunger switch (GY20094)
• Reverse implement push switch (AM124734)

Miscellaneous

• Muffler (various part numbers depending on region and serial number)
• Grease gun (TY26183)
• Multi-purpose SD polyurea grease (TY6341)
• Mower deck leveling gauge (AM130907)

Maintenance Kits

• Home maintenance kit (LG264 for USA, not for California; LG268 for California; LG275 for specific engine models)

These parts cover the major components of the John Deere D170. For specific repairs or maintenance tasks, it’s advisable to consult the owner’s manual or a John Deere dealer for the correct part numbers and installation procedures.

John Deere D170 Parts Diagram

The John Deere D170 lawn tractor is equipped with a Kanzaki TuffTorq K46 hydrostatic transmission. This transmission system offers several key features and characteristics:

Hydrostatic Operation

• Provides smooth, variable speed control in both forward and reverse
• Allows for easy direction changes without the need for clutching or shifting gears

Performance

• Forward speed range: 0-5.5 mph
• Reverse speed range: 0-3.2 mph
• Equipped with a traction drive belt for power transfer

Control System

• Uses John Deere’s two-pedal foot control system
• One pedal for forward motion, one for reverse
• Allows for precise speed adjustments and easy maneuverability

Maintenance

• Requires periodic belt inspection and replacement
• The traction drive belt (part number GX20006) is a critical component
• Regular lubrication of moving parts is essential for optimal performance

Known Issues

• Some users report transmission problems, especially when used on hilly terrain
• Issues may include loss of power when climbing hills or difficulty moving uphill as the tractor warms up
• In some cases, complete transmission failure has occurred at relatively low hours of use

Considerations

• While generally reliable for flat terrain and moderate use, the transmission may struggle with more demanding conditions
• Not designed for heavy-duty applications or constant use on steep slopes

The K46 transmission in the D170 is designed for residential use and performs well under normal conditions, but potential buyers should be aware of its limitations, especially if they have challenging terrain or heavy-use requirements.

John Deere D170 Battery

The John Deere D170 lawn tractor uses a 12-volt battery for starting and powering electrical components. Here are the key details about the D170’s battery:

Specifications

• Voltage: 12 volts
• Battery Group: U1
• Amp Hours: Approximately 24-35 AH

Location and Installation

• The battery is located under the hood, behind the engine
• Terminals face forward when properly installed
• Positive terminal (red cable) on the right side
• Negative terminal (black cable) on the left side

Replacement

• Compatible replacement batteries include John Deere original equipment and aftermarket options
• When replacing, ensure the new battery matches the U1 group size and has adequate cold cranking amps (CCA)

Maintenance

• Check battery connections regularly for corrosion and tightness
• Clean terminals as needed to ensure good contact
• Charge the battery if the tractor is not used for extended periods

Safety

• Always disconnect the negative terminal first when removing the battery
• Connect the positive terminal first when installing a new battery
• Avoid touching both terminals simultaneously with metal tools to prevent sparks

Proper battery maintenance and timely replacement are crucial for reliable starting and optimal performance of the John Deere D170 lawn tractor.

John Deere D170 Deck Belt

The John Deere D170 lawn tractor with a 54-inch mower deck uses a specific deck belt for optimal performance. Here are the key details about the D170’s deck belt:

Specifications

• Part Number: GX21395
• Type: V-Belt
• Length: Approximately 161 inches (4089.40 mm)
• Width: 0.63 inches (15.88 mm)
• Depth: 0.375 inches (9.525 mm)

Function

The deck belt is responsible for transferring power from the engine to the mower blades, enabling the cutting action of the mower.

Maintenance

• Regular inspection is crucial to ensure proper tension and condition
• Replace the belt if signs of wear, fraying, or cracking are visible
• Proper tension is important for optimal performance and to prevent slipping

Replacement

• It’s recommended to use an OEM (Original Equipment Manufacturer) belt for best results
• Replacing the belt typically requires removing the mower deck
• Follow the belt routing diagram carefully when installing a new belt

Common Issues

• Belt may come off when mowing tall or thick grass
• Frequent belt replacement may indicate other underlying problems, such as worn pulleys or improper tension

Tips

• Keep the deck clean to prevent debris from affecting belt performance
• Lubricate mower spindles and idler pulleys as part of regular maintenance
• Adjust deck level and check blade sharpness to reduce stress on the belt

Regular maintenance and timely replacement of the deck belt are essential for maintaining the cutting performance and longevity of your John Deere D170 lawn tractor.

John Deere D170 Mower

The John Deere D170 is a high-end lawn tractor designed for mowing larger areas efficiently. Here are the key features and specifications of this mower:

Engine and Power

• 25-26 HP Briggs & Stratton V-Twin engine
• 724cc displacement
• Extended Life Service (ELS) designation for durability

Mower Deck

• 54-inch Edge Cutting System
• Three-blade design
• Cutting height adjustable from 1 to 4 inches
• Spring-assisted height adjustment
• Washout port for easy cleaning

Transmission

• Kanzaki TuffTorq K46 hydrostatic transmission
• Two-pedal foot control system
• Forward speed: 0-5.5 mph
• Reverse speed: 0-3.2 mph
• Cruise control feature

Dimensions and Weight

• Wheelbase: 48.9 inches
• Length: 69.25 inches
• Width: 68.5 inches with mower deck
• Height: 45 inches
• Weight: 579 lbs with mower deck

Additional Features

• 18-inch turning radius
• Full-length welded steel frame
• Cast-iron front axle
• 4-gallon fuel tank (2.4 gallons for California models)
• Adjustable 15-inch tall seat with lumbar support
• Fender-mounted cup holder

Maintenance

• Regular greasing of idler pulley bearings and spindle bearings recommended
• Deck belt (GX21395) should be inspected and replaced as needed
• Home maintenance kit available for routine upkeep

The D170 is designed for residential use on larger properties, offering a balance of power, comfort, and durability for homeowners seeking a reliable lawn tractor.

John Deere D170 Oil filter

The John Deere D170 uses an oil filter with the part number AM125424. This filter is designed specifically for the D170 and other models in the 100 Series of John Deere lawn tractors. Here are the key details about the D170’s oil filter:

Specifications

• Part Number: AM125424
• Type: Spin-on cartridge filter
• Filtration level: 28 micron

Installation

• The filter is located under the hood, typically behind the engine
• To replace, turn the old filter counterclockwise to remove
• Before installing the new filter, apply a light coat of fresh oil to the gasket
• Install the new filter by turning clockwise until the gasket contacts the base
• Tighten an additional one-half turn by hand

Maintenance

• Change the oil filter at recommended intervals or annually
• Always change the filter when changing the engine oil
• Ensure proper disposal of the used oil filter

Compatibility

The AM125424 filter is also compatible with many other John Deere models, including various 100 Series tractors and some X300 and X500 Series models.

Tips

• Always use a genuine John Deere filter or a high-quality equivalent
• Check for leaks after installation and running the engine briefly
• Mark the installation date on the new filter for future reference

Proper and timely replacement of the oil filter is crucial for maintaining the engine’s performance and longevity of your John Deere D170 lawn tractor.

John Deere D170 Attachments

FAQ

John Deere D170 Price FAQ

How much does a John Deere D170 cost?
The John Deere D170 typically has a starting price of $2,799 for a new model.

Are there any discounts available?
Some retailers may offer incentives or discounts, especially when using their store credit card. These discounts can sometimes reach $100 or more off the regular price.

What’s included in the price?
The price includes the tractor with a 54-inch Edge Cutting System mower deck, a 25-26 HP Briggs & Stratton V-Twin engine, and a hydrostatic transmission.

Is the price the same at box stores and John Deere dealers?
Yes, the MSRP is typically the same at both box stores and authorized John Deere dealers.

What about used D170 models?
Used D170 models can vary widely in price depending on age and condition. Some examples:

• 2014 model: Around $1,400
• 2015 model: Approximately $4,249

Does the price include a warranty?
New D170 models come with a two-year or 120-hour limited warranty.

Are there any additional costs to consider?
Potential additional costs may include:

• Optional accessories or implements
• Delivery fees (if applicable)
• Maintenance costs over time

Is financing available?
Many retailers offer financing options for the D170, which can affect the overall cost depending on the terms and interest rate.

John Deere D170 Specs FAQ

What is the engine type of the John Deere D170?
The D170 is powered by a Briggs & Stratton V-Twin engine, specifically designed for extended life service (ELS). It has a displacement of 724 cc and produces 25 to 26 horsepower.

What are the dimensions of the D170?
The dimensions of the John Deere D170 are as follows:

• Wheelbase: 48.9 inches
• Length: 69.25 inches
• Width: 68.5 inches (with mower deck)
• Height: 45 inches
• Weight: 579 lbs (with mower deck)

What type of transmission does the D170 have?
The D170 features a Tuff Torq K46 hydrostatic transmission, which provides infinite forward and reverse speeds. It is controlled by a two-pedal system for smooth operation.

What is the cutting deck size?
The D170 comes with a 54-inch Edge Cutting System mower deck, which utilizes three blades for an even cut and allows height adjustments from 1 to 4 inches.

What are the tire specifications?
The front tires measure 16×6.5-8, while the rear tires are sized at 22×9.5-12.

Does the D170 have any special features?
Yes, it includes features such as cruise control, a washout port for easy deck cleaning, and an adjustable seat with lumbar support.

What is the fuel tank capacity?
The fuel tank capacity for the D170 is 4 gallons, with a smaller capacity of 2.4 gallons for California models.

How does the braking system work?
The braking system consists of internal wet disk brakes, providing reliable stopping power without requiring manual adjustments.

John Deere D170 Parts FAQ

What are the key replacement parts for the John Deere D170?
The essential replacement parts for the D170 include:

• Mower blades (part number GY20679)
• Mower deck belt (part number GX21395)
• Engine oil filter (part number GY20577)
• Air filter (part number GY21057)
• Fuel filter (part number GY20709)

Where can I purchase parts for the D170?
Parts for the John Deere D170 can be purchased at authorized John Deere dealers, online retailers, or through various lawn care parts websites.

Are there any specific maintenance kits available?
Yes, there are maintenance kits available that typically include oil filters, air filters, and other essential components needed for regular service.

What is the part number for the traction drive belt?
The traction drive belt for the D170 is identified by part number GX20006.

Is there a mulch kit available for the D170?
Yes, a mulch kit is available specifically designed for the D170 to enhance grass cutting and provide better nutrient recycling.

What should I do if I need a part not listed?
For parts not readily available or listed, it’s advisable to consult the operator’s manual or contact a local John Deere dealer for assistance in ordering specific components.

How often should I replace the mower blades?
Mower blades should be sharpened or replaced as needed, typically after every 20-25 hours of mowing to ensure optimal cutting performance.

Are there any specific tools required for maintenance?
Basic tools such as wrenches, screwdrivers, and a grease gun are commonly required for routine maintenance and part replacements on the D170.

John Deere D170 Transmission FAQ

What type of transmission does the John Deere D170 have?
The John Deere D170 is equipped with a Kanzaki TuffTorq K46 hydrostatic transmission. This type of transmission allows for smooth operation with variable speed control and eliminates the need for manual gear shifting.

What are common problems with the K46 transmission?
Common issues reported with the K46 transmission include:

• Loss of power, particularly when climbing hills
• Whining or slipping noises during operation
• Overheating after prolonged use, leading to reduced performance

How can I maintain the transmission?
Regular maintenance is essential for extending the life of the K46 transmission. Recommended practices include:

• Changing the transmission oil periodically, typically every 200 hours of operation
• Checking for leaks and ensuring proper fluid levels
• Inspecting belts and pulleys for wear

Is the K46 transmission serviceable?
Yes, while some users believe the K46 is sealed, it can be serviced. Changing the oil and filter can help maintain performance and extend its lifespan.

What should I do if my transmission fails?
If you experience significant issues with your D170’s transmission, such as complete failure or persistent overheating, it may be necessary to consult a professional technician or a John Deere dealer for diagnosis and repair options.

Are there replacement parts available for the transmission?
Yes, various replacement parts for the K46 transmission are available, including belts, pulleys, and complete transaxles. It’s advisable to refer to the parts manual or consult a dealer for specific part numbers.

How does the hydrostatic transmission work?
The hydrostatic transmission operates using hydraulic fluid to transfer power from the engine to the wheels. This allows for smooth acceleration and deceleration without the need for manual gear changes, providing ease of use in various mowing conditions.

John Deere D170 Battery FAQ

What type of battery does the John Deere D170 use?
The John Deere D170 uses a 12-volt battery, specifically a U1 group size battery.

What are the specifications of the D170 battery?
The typical specifications include:

• Voltage: 12V
• Cold Cranking Amps: Approximately 300
• Dimensions: Length 7.76 inches, Width 5.12 inches, Height 6.7 inches

How do I replace the battery on the D170?
To replace the battery:

1. Ensure the mower is off and the key is removed.
2. Disconnect the negative terminal first, followed by the positive terminal.
3. Remove the old battery and place the new one in position, ensuring terminals face forward.
4. Connect the positive terminal first, then the negative terminal.

What are common battery-related issues with the D170?
Common issues include:

• Battery not holding a charge
• Difficulty starting the engine
• Battery draining quickly while in use

How can I maintain the battery?
To maintain the battery:

• Regularly check and clean terminals to prevent corrosion.
• Ensure connections are tight and secure.
• Consider using a trickle charger during long periods of inactivity.

What should I do if my battery keeps draining?
If your battery keeps draining, check for:

• Faulty charging system or alternator issues
• Loose or corroded connections
• Electrical components that may be drawing power when not in use

Where can I purchase a replacement battery?
Replacement batteries can be purchased from authorized John Deere dealers, online retailers, or automotive supply stores that carry lawn and garden batteries.

John Deere D170 Deck Belt FAQ

What is the part number for the deck belt on the John Deere D170?
The part number for the deck belt used in the John Deere D170 is GX21395.

What are the specifications of the GX21395 deck belt?
The GX21395 deck belt typically measures 5/8 inches in width and approximately 161-3/4 inches in length. It is designed to be heat and oil resistant, made from neoprene rubber.

How often should the deck belt be replaced?
The deck belt should be inspected regularly for signs of wear or damage and replaced as needed. It is advisable to check it at least once per mowing season or after every 50 hours of operation.

What are common issues associated with the deck belt?
Common issues include:

• The belt slipping off during operation, especially when mowing thick grass.
• Signs of fraying or cracking, indicating that it may need replacement.

How do I replace the deck belt on the D170?
To replace the deck belt:

1. Remove the mower deck from the tractor.
2. Disconnect the old belt from the pulleys.
3. Route the new belt around the pulleys according to the diagram specific to your model.
4. Reinstall the mower deck and ensure proper tension is applied to the new belt.

Can I use a different brand of belt?
While it’s possible to use aftermarket belts, it is recommended to use OEM parts like GX21395 for optimal performance and longevity.

Where can I purchase a replacement deck belt?
Replacement belts can be purchased from authorized John Deere dealers, online retailers specializing in lawn equipment, or automotive supply stores that stock lawn mower parts.

John Deere D170 Oil Filter FAQ

What is the correct oil filter for the John Deere D170?
The correct oil filter for the John Deere D170 is AM125424.

How often should I change the oil filter on my D170?
Change the oil filter every 50 hours of operation or annually, whichever comes first.

Can I use an aftermarket oil filter on my D170?
While OEM filters are recommended, high-quality aftermarket filters that meet the same specifications can be used.

What are the dimensions of the D170 oil filter?
The typical dimensions are approximately:

• Height: 60mm
• Width: 78mm
• Center thread: 3/4 inch

How do I install the new oil filter?

1. Clean the area around the filter.
2. Apply a light coat of clean oil to the new filter gasket.
3. Screw on the new filter clockwise until the gasket contacts the base.
4. Tighten an additional 1/2 turn by hand.

What should I do with the old oil filter?
Dispose of the old oil filter properly at an authorized recycling center or auto parts store.

Is there a special tool needed to remove the oil filter?
No special tool is required, but an oil filter wrench can make removal easier if the filter is tight.

What happens if I don’t change the oil filter regularly?
Neglecting to change the oil filter can lead to reduced engine performance, increased wear, and potential engine damage over time.

John Deere D170 Attachments FAQ

What types of attachments are available for the John Deere D170?
The D170 is compatible with various attachments, including:

• Baggers
• Mulch kits
• Spreaders
• Carts
• Front bumpers
• Sun canopies
• Snow blowers
• Blades

Do I need special tools to install attachments on the D170?
Most attachments can be installed without special tools. However, some may require basic hand tools for proper installation.

Can I use attachments from other brands on my D170?
While John Deere attachments are recommended for optimal fit and performance, some third-party attachments may be compatible. Always check compatibility before purchasing.

What is the most popular attachment for the D170?
The rear bagging system is one of the most commonly purchased attachments for the D170.

Is there a quick-attach system for the D170?
Yes, many D170 attachments utilize quick-attach systems for easy installation and removal.

Can I use a front loader on the D170?
The D170 is not designed to accommodate a front loader attachment.

What size mower deck does the D170 use?
The D170 typically comes with a 54-inch mower deck.

Are there winter attachments available for the D170?
Yes, attachments like snow blowers and blades are available for winter use on the D170.

How do I know which attachments are compatible with my specific D170 model?
Consult your owner’s manual or contact a John Deere dealer for a list of compatible attachments for your specific D170 model and serial number.