John Deere X390 : Parts, Manuals, Diagrams, Specs

John Deere X390

The John Deere X390 lawn tractor is available in both new and used conditions in the USA, with prices varying based on factors such as condition, features, and location.

New John Deere X390

New X390 models are typically priced between $6,000 and $8,000. The exact price can depend on the chosen deck size (48-inch or 54-inch) and any additional features or attachments. As of February 2025, John Deere is offering financing options for new X390 tractors, including:

• 1.5% APR fixed rate for 36 months

• 4.9% APR fixed rate for 60 months

• No interest if paid in full within 9 months

These offers are available through April 30, 2025, subject to approved credit.

Used John Deere X390

The price range for used X390 models is quite broad, typically ranging from $1,000 to $6,000. Factors affecting the price of used models include:

• Age of the tractor

• Number of hours used

• Overall condition

• Included attachments or accessories

• Local market demand

Some nearly new used models (e.g., 2024 or 2025 models with very low hours) may be priced close to the new model range, often around $6,000 to $7,000.

When shopping for a used X390, it’s important to consider the tractor’s maintenance history and overall condition, as these factors can significantly impact its value and performance.

Financing Options

John Deere offers several financing options for the X390 lawn tractor, making it easier for customers to purchase this model. As of February 2025, the following financing options are available:

Standard Financing

• 4.9% fixed rate for 48 months

• No interest if paid in full within 12 months

Special Promotion

Currently, John Deere is running a “Spring Into Savings” promotion with the following offer:

• 1.5% APR financing for 36 months

Additional Options

For those looking for longer-term financing, John Deere also provides:

• 4.9% APR fixed rate for 60 months

These financing options are subject to approved credit and may vary depending on the dealer and specific terms of the offer. It’s worth noting that some dealers might offer additional incentives or custom financing packages.

When considering financing for the X390, customers should also be aware of potential seasonal promotions and dealer-specific offers that could provide even more attractive terms.

John Deere X390 Specs

The John Deere X390 is a powerful and versatile lawn tractor designed for residential use. Here are its key specifications:

Engine

The X390 is equipped with a 23-hp (17.2-kW) V-twin engine manufactured by Kawasaki. The engine model is FR691V, featuring:

• Displacement: 44.3 cu in. (726 cc)

• Type: Overhead valve with full-pressure lubrication and oil filter

• Cylinders: V-twin with cast-iron liners

• Cooling: Air-cooled

• Governor: Mechanical

• Choke/speed control: Separate levers with automatic choke return

Fuel System

• Fuel type: Gasoline

• Fuel delivery: Pulse pump and carburetor

• Fuel tank capacity: 3.3 U.S. gallons (12.5 L)

• Fuel gauge: Located on the dash

Transmission

• Type: K58 hydrostatic integrated with transaxle

• Control: Twin Touch pedals

Mower Deck

• Type: Accel Deep mower deck

• Available sizes: 48-inch (122 cm) or 54-inch (137 cm)

• Construction: Forged steel deck shell

• Material thickness: 10 gauge (0.135 in. / 3.4 mm)

• Drive system: Electric power take-off (PTO) clutch with in-line belt

Additional Features

• Power steering

• Hydraulic deck lift system

• Exact Adjust ports and onboard deck-leveling gauge

• Mower wash port for easy cleaning

• Four mower wheels with seven-position, spring-loaded pin adjustment

Dimensions and Weight

• Wheelbase: 49.4 inches (125 cm)

• Weight: 535 lbs (242 kg)

• Front tires: 15×6.50-8

• Rear tires: 22×11-10

Warranty

The John Deere X390 comes with a 4-year/300-hour bumper-to-bumper warranty, demonstrating the manufacturer’s confidence in the product’s quality and durability.

John Deere X390 Problems

The John Deere X390 is a high-end residential lawn tractor that has received generally positive reviews. Here are some key points from recent reviews:

Performance and Features

The X390 is praised for its powerful 23-hp Kawasaki V-twin engine, which provides ample power for mowing, mulching, and bagging. The tractor offers:

• Power steering for easy maneuverability

• Hydraulic deck lift system for convenient height adjustments

• K58 hydrostatic transmission, allowing speeds up to 6.2 mph

• Available with 48-inch or 54-inch Accel Deep mower deck

Comfort and Ease of Use

Reviewers highlight the X390’s comfort features:

• 18-inch high-back seat with cut-and-sewn design

• Adjustable seat suspension for a smooth ride

• Twin Touch pedals for easy speed and direction control

Build Quality and Durability

The X390 is noted for its robust construction:

• Forged steel deck shell (10-gauge thickness)

• Reinforced deck edging for improved durability

• 4-year/300-hour bumper-to-bumper warranty

Maintenance and Serviceability

Users appreciate the easy maintenance features:

• Toolless oil drain system

• Easily accessible service points

• Onboard deck-leveling gauge

Potential Drawbacks

Some reviewers mention:

• Higher price point compared to entry-level models

• Occasional reports of engine surging issues

Overall, the John Deere X390 is well-regarded for its performance, comfort, and build quality, making it a popular choice for homeowners with larger properties or those seeking a premium mowing experience.

John Deere X390 Attachments

The John Deere X390 lawn tractor is compatible with a variety of attachments that enhance its versatility and functionality. Here are some popular attachments available for the X390:

Bagging System

A rear bagging system is available for the X390, allowing you to collect grass clippings and leaves efficiently. This attachment is particularly useful for maintaining a neat lawn appearance.

Mulching Kit

The X390 can be equipped with a mulching kit, which helps to finely chop grass clippings and return them to the lawn as natural fertilizer. This kit is easy to install and can be a great option for those looking to improve soil health.

Front Bumper

A front bumper attachment is available to protect the front of your X390 from potential damage during operation.

Mulch Cover

A mulching cover can be installed on the edge of the mower deck, allowing you to switch between side discharge and mulching functions easily.

Spreader

A tow-behind broadcast spreader can be attached to the X390, useful for spreading fertilizer, seed, or ice melt on driveways.

Utility Cart

A 7-cubic-foot poly cart can be attached to the X390, providing a versatile solution for hauling various materials around your property.

Snow Blade

For winter use, a snow blade attachment can be added to the X390, allowing you to clear snow from driveways and paths.

Maintenance Kit

While not an attachment per se, the John Deere Home Maintenance Kit (LG265) is compatible with the X390 and includes essential items for routine maintenance.

These attachments significantly expand the capabilities of the John Deere X390, making it a versatile machine for various lawn care and property maintenance tasks throughout the year.

John Deere X390 Snowblower

The John Deere X390 lawn tractor is compatible with a 44-inch snow blower attachment, providing excellent snow removal capabilities for homeowners with larger properties. Here are the key details about the X390 snowblower attachment:

Compatibility and Installation

The 44-inch snow blower (model 7007M) is designed to work with the X390 and other X300 Series tractors. To use an older (2006-2015) snow blower on a 2016 or newer X390, you’ll need the BM26155 Snow Blower and Front Blade Compatibility Kit.

Features

• 44-inch (112 cm) clearing width

• Spring-assisted foot pedal for easy lifting and lowering

• Optional hydraulic power lift for fingertip control

• Cast-iron gear boxes for durability

• Shear-bolt protection against ice chunks

• 200-degree rotating chute controlled from the operator’s seat

• Adjustable spout deflector for on-the-go snow height changes

Performance

The snow blower is capable of handling large snow removal jobs and works well in various snow conditions. It’s particularly suited for clearing snow around recreational parks and larger residential properties.

Installation

Installation involves attaching the snow blower to the tractor’s front hitch, connecting the drive belt, and adjusting the skid shoes and scraper blade. John Deere provides detailed installation instructions and video guides for proper setup.

Additional Requirements

When using the snow blower, it’s recommended to add rear ballast and tire chains to the X390 for improved traction and stability. Two suitcase weights are typically suggested for X300 series tractors.

The 44-inch snow blower attachment significantly enhances the X390’s year-round utility, transforming it from a summer lawn care machine into a capable winter snow removal tool.

John Deere X390 Oil Capacity

The John Deere X390 lawn tractor has an engine oil capacity of 2.1 L (2.2 qt). This information is consistent across multiple sources and is specified in the John Deere maintenance documentation.

When changing the oil in the X390, it’s important to note:

• The tractor uses Turf-Gard 10W30 engine oil.

• The X390 features a no-tools oil drain system with a replaceable filter, making oil changes more convenient.

• It’s recommended to change the oil and filter after the initial 8 hours of operation, and then yearly or every 50 hours, whichever comes first.

To ensure proper oil level:

• Check the oil level using the dipstick, turning it counterclockwise until it drops slightly before removing to check.

• After filling, start the engine and let it run briefly, then recheck the oil level.

• Be careful not to overfill, as this can cause engine damage.

Always refer to the owner’s manual for the most accurate and up-to-date information regarding oil changes and maintenance for your specific X390 model.

John Deere X390 54 inch Deck Belt Diagram

The John Deere X390 with a 54-inch Accel Deep deck uses two belts for its mower deck:

1. Primary belt (M169485): 1900 mm length, 11 mm thickness, 16.6 mm width

2. Secondary belt (M169486): 2810 mm length, 11 mm thickness, 16.6 mm width

The general belt routing for John Deere X series tractors typically follows this pattern:

1. The primary belt connects from the engine pulley to the center pulley on the deck.

2. The secondary belt wraps around the center pulley and connects to the spindle pulleys for each blade.

When installing the belt:

1. Route the belt with the V-side down around the bottom pulley.

2. Wrap the belt around each side pulley.

3. Ensure the smooth side of the belt is against the pulleys and goes between the U-bolts and pulleys.

4. Use the deck’s built-in belt path diagram for reference during installation.

5. Verify proper tension and alignment before reattaching the deck to the tractor.

For precise installation, it’s recommended to consult the operator’s manual or a detailed service guide for the X390 model with a 54-inch deck.

John Deere X390 Manual

The John Deere X390 operator’s manual is a comprehensive guide that provides essential information for owners and operators of this lawn tractor. Here are the main sections typically included in the manual:

Safety

This section covers important safety guidelines, including:

• Operating safety precautions

• Maintenance safety procedures

• Safety decals and their locations

Operating

Detailed instructions on how to operate the X390, including:

• Controls and instruments

• Starting and stopping the engine

• Driving the tractor

• Using the mower deck

• Adjusting cutting height

Maintenance

Information on routine maintenance tasks:

• Service intervals

• Lubrication points

• Engine oil and filter changes

• Air filter maintenance

• Fuel system care

Troubleshooting

Common issues and their potential solutions, covering:

• Engine problems

• Electrical system issues

• Mower deck troubles

• Transmission concerns

Specifications

Technical details about the X390, such as:

• Engine specifications

• Dimensions and weight

• Tire sizes and pressure

• Capacities (fuel, oil, etc.)

Attachments and Accessories

Information on compatible attachments, including:

• Bagging systems

• Mulching kits

• Snow removal equipment

Parts List

A comprehensive list of replacement parts, including part numbers for:

• Filters (oil, air, fuel)

• Belts and blades

• Electrical components

Warranty Information

Details about the warranty coverage for the X390, including:

• Warranty terms and conditions

• How to obtain warranty service

The manual serves as a valuable resource for X390 owners, providing guidance on proper operation, maintenance, and troubleshooting to ensure optimal performance and longevity of the lawn tractor.

John Deere X390 Battery

The John Deere X390 lawn tractor uses a 12-volt battery. Here are the key details about the battery for this model:

Specifications

• Voltage: 12V

• Capacity: 24Ah

• Type: Wet charged, maintenance-free

• John Deere part number: JXYP340A22 or MCYP340PF

Features

• Designed to meet John Deere’s demanding machine specifications

• Built and tested for real conditions, including vibration and cold testing

• Poly case and cover for durability

• Advanced grid alloy to protect against known causes of failure

Maintenance Tips

• Keep the battery fully charged, especially before winter storage

• A fully charged battery can withstand temperatures down to -80°F without freezing

• For winter storage, either disconnect the negative ground cable or use a trickle charger

• Store the battery in a cool, dry place if removing it from the tractor

Replacement

When replacing the battery, ensure you get a compatible model. The X390 uses a U1-type battery, which is common for lawn and garden equipment.

Remember to handle batteries with care and dispose of old batteries properly at a recycling center.

John Deere x380 v X390

The John Deere X380 and X390 are both part of the X300 Select Series of lawn tractors, with the X390 being a slightly higher-end model. Here are the key similarities and differences between the two:

Similarities

• Engine: Both use the FR691V engine with 23 hp (17.2 kW) power output

• Cutting width: Both offer a 48-inch (122 cm) Accel Deep mower deck

• Transaxle: Both use the K58 hydrostatic integrated transaxle

• Forward speed: 0-6.2 mph (0-10 km/h) for both models

• Dimensions: Both have the same overall length (72 in / 182.9 cm) and width with mower (62.5 in / 159 cm)

Key Differences

• Power steering: The X390 comes with power steering, while the X380 does not

• Hydraulic deck lift: The X390 features a hydraulic deck lift system, which is not present on the X380

• Seat: The X390 has an upgraded 18-inch high-back seat with cut-and-sewn design

• Price: The X390 is typically priced higher due to its additional features

Additional Features of the X390

• Power deck lift for easier adjustment

• Replaceable bushings at the center axle pivot and steering spindles

• Heavy-duty equipment mounting system

The X390 represents a step up from the X380 in terms of comfort and ease of use, primarily due to its power steering and hydraulic deck lift features. These additions make it more suitable for users with larger properties or those who prioritize operator comfort during extended mowing sessions.

John Deere X390 Oil filter

The John Deere X390 uses the AM125424 oil filter. This genuine John Deere engine oil filter is designed specifically for the X390 and other X300 series lawn tractors.

Key features of the AM125424 oil filter include:

• High-quality filtration with large inlet holes and more media paper for better filtering of harmful particles

• Enhanced durability with media securely bonded to metal end caps

• Reliable sealing with rubber gaskets for a tighter seal

• Contaminant-free design with the element enclosed in a poly bag

The filter should be changed every 100 hours or annually, whichever comes first. When installing the new filter:

1. Apply a thin layer of clean oil to the o-ring

2. Screw on the filter until the o-ring touches the housing, then turn an additional half turn

3. Do not overtighten

For easy reference, it’s recommended to write the date and hour reading on the filter after installation. The AM125424 filter is part of John Deere’s home maintenance kit for X300 series tractors, which includes other essential service items.

FAQ

What is the engine power of the John Deere X390?
The John Deere X390 has a 23 hp (17.2 kW) engine.

What type of transmission does the X390 use?
The X390 uses a K58 hydrostatic integrated transaxle.

What is the cutting width of the X390?
The X390 is available with a 48-inch (122 cm) or 54-inch (137 cm) Accel Deep mower deck.

Does the X390 have power steering?
Yes, the X390 comes equipped with power steering.

What is the warranty on the John Deere X390?
The X390 comes with a 4-year/300-hour bumper-to-bumper warranty.

What type of fuel system does the X390 use?
The X390 uses a gasoline fuel system with a 3.3 U.S. gallon (12.5 L) fuel tank capacity.

How often should the oil be changed on an X390?
The oil should be changed after the initial 8 hours of operation, and then yearly or every 50 hours, whichever comes first.

What type of oil does the X390 use?
The X390 uses Turf-Gard 10W30 engine oil.

What is the oil capacity of the X390?
The oil capacity of the X390 is 2.1 L (2.2 qt).

Is the X390 compatible with a snow blower attachment?
Yes, the X390 is compatible with a 44-inch snow blower attachment.

What is the maximum forward speed of the X390?
The maximum forward speed of the X390 is 6.2 mph (10 km/h).

Does the X390 have a hydraulic deck lift?
Yes, the X390 features a hydraulic deck lift system.

What type of seat does the X390 have?
The X390 has an 18-inch high-back seat with a cut-and-sewn design.

What is the wheelbase of the X390?
The wheelbase of the X390 is 49.4 inches (125 cm).

What size are the rear tires on the X390?
The rear tires on the X390 are 22×11-10.