JAVIK Rear Differential Bearing & Seal Kit for Honda FourTrax 300 TRX300/TRX300FW 1988-2000 — OEM-fit bearings and oil seals

JAVIK rear differential bearings and seals kit is a complete OEM-fit replacement set engineered to restore proper sealing and bearing function on Honda FourTrax 300 (TRX300/TRX300FW) ATVs manufactured 1988–2000.

This kit bundles the bearings, oil seals, and related hardware needed to service the rear differential on compatible Honda FourTrax 300 models. Each component is manufactured to match OEM fit dimensions and is bench-tested to verify tolerances; the kit lists the original part numbers so you can confirm compatibility before ordering. It does not fit the TRX300EX Sportrax edition — please check your OEM numbers against those listed.

Will this kit fit my Honda FourTrax 300?

Compatibility covers FourTrax 300 2x4 TRX300 (1988–2000) and FourTrax 300 4x4 TRX300FW (1988–2000). The listing provides the OEM numbers included and several replacement OEM cross-references to make verification straightforward. If your machine uses different part numbers or is the TRX300EX Sportrax, this kit is not compatible.

• Compatible models: FourTrax 300 TRX300 (2x4) and TRX300FW (4x4) from 1988–2000.
• Primary OEM numbers included: 91051-HC4-003, 91271-HC4-004.
• Replacement cross-references: 06910-HM4-850, 91063-HC4-771, others listed.
• Not compatible with TRX300EX Sportrax edition — verify your OEM plate.

What parts come in the kit and how are they made?

The kit contains rear differential bearings, oil seals, and necessary small hardware to replace worn items in the differential assembly. Components are produced to meet the same critical dimensions and tolerances as the original equipment, and each piece is inspected to ensure fitment. The package aims to reduce the need to source multiple parts separately.

• Bearing assemblies sized to OEM specifications for smooth differential operation.
• Oil seals designed to restore proper fluid containment and prevent leaks.
• Included accessory pieces eliminate the need for additional purchases.
• Manufactured and tested to match factory fit and function.

How difficult is installation and what should I prepare?

Installation requires intermediate mechanical skills and basic specialty tools for bearing and seal removal/installation. A press or bearing driver, seal driver, torque wrench, and proper fluids are typically needed; reference a service manual for torque specs and step-by-step procedure. If you are unsure, a professional ATV technician or service shop can install the kit and verify correct clearances.

• Tools recommended: bearing press or driver, seal installer, torque wrench.
• Preparation: clean work area, service manual, diff fluid replacement.
• Time estimate: variable — expect a few hours for experienced hands.
• Service option: have a certified mechanic perform installation if unfamiliar.

What warranty and customer support come with the kit?

JAVIK provides customer service support around the clock and a one-year product service policy for this kit. If parts arrive damaged, incorrect, or you experience fitment questions, contact JAVIK customer service for guidance and replacement options. Keep order and OEM information handy to expedite support.

• 24-hour customer service available through JAVIK messaging.
• One-year product service coverage for defects or fitment issues.
• Provide OEM numbers and order details when requesting assistance.
• Returns and replacements handled per JAVIK service process.

Who is this for: This kit is intended for owners and technicians working on Honda FourTrax 300 (TRX300/TRX300FW) ATVs from 1988 to 2000 who need a direct-fit replacement for rear differential bearings and seals. It suits DIY mechanics with the necessary tools and experience, home-garage restorers refreshing an aging drivetrain, and service shops looking for an OEM-number-matching parts kit to complete differential repairs efficiently.