1999-2005 Honda Sportrax 400 TRX400EX OEM Oil Change Kit H45

Our review of the 1999-2005 Honda Sportrax 400 TRX400EX EX 2x4 OEM Oil Change Kit H45 finds it is a straightforward, no-surprises maintenance solution for owners who prefer genuine parts. This kit includes the exact items needed for a standard oil change on the Sportrax 400, and the single biggest reason to buy is parts compatibility: the oil, filter, O-ring and crush washer are original Honda components, which reduces the chance of fitment or sealing issues that can come from aftermarket bundles. For a DYI rider seeking correct parts without hunting down individual items, this kit simplifies the job.

Key Features

• Genuine OEM parts: All included components are Honda original equipment, ensuring correct fit and factory spec compatibility for the Sportrax 400.
• Correct oil grade: The kit contains two bottles of 10W-40 4-Stroke Pro Honda Oil so the engine gets the viscosity Honda recommends for common riding conditions.
• Complete filter set: The Honda oil filter included matches the factory replacement part number to help maintain engine protection and oil flow.
• Sealing hardware included: An OEM O-ring and crush washer are provided so the drain plug and filter seal are replaced during the service.
• Simplifies maintenance: Bundled items eliminate multiple part lookups and reduce the time needed to gather supplies for a routine oil change.

Who It's For

This kit is best for Sportrax 400 owners from model years 1999 through 2005 who prefer to use factory parts and do their own maintenance. It suits DIY mechanics who want to avoid compatibility guesses and to make one purchase that covers oil, filter and the small hardware you should replace each change.

Riders who use specialty oils outside the 10W-40 range, need additional fluids, or want a kit with a larger oil quantity for extended drain intervals should look elsewhere. Professional shops that service many different models may prefer to stock generic consumables, but the OEM kit is ideal for accuracy and convenience on the Sportrax 400.

Pros & Cons

Pros

• Includes genuine Honda oil and filter for factory-level fit and compatibility.
• All required small parts are supplied so users do not need separate washers or O-rings.
• Two bottles of 10W-40 oil ensure you have sufficient oil for the Sportrax 400 drain and refill needs.

Cons

• Contains only 10W-40 oil grade, so riders wanting a different viscosity must supplement separately.

Specifications

Product	Oil Change Kit H45 for Sportrax 400
Fitment	1999-2005 Honda Sportrax 400 TRX400EX EX 2x4
Motor oil	2 x 10W-40 4-Stroke Pro Honda Oil (08C35-A141M01)
Oil filter	Honda Oil Filter 15412-HM5-A10
O-ring	Honda O-Ring 91302-KF0-003
Crush washer	Honda Washer 94109-12000

Our Verdict

The Honda Sportrax 400 OEM Oil Change Kit H45 is a practical, cost-effective purchase for Sportrax 400 owners who value correct fitment and want the convenience of a single kit for routine maintenance. It removes guesswork by supplying genuine oil, filter and sealing parts, making it good value for DIYers who perform their own oil changes and prefer factory-spec replacements.

Frequently Asked Questions

Does this kit include enough oil for one change?
The kit includes two bottles of 10W-40 Pro Honda Oil, which provides the typical quantity needed for a Sportrax 400 oil change.

Will these parts fit my Sportrax 400?
Yes, the kit is specified for 1999-2005 Honda Sportrax 400 TRX400EX EX 2x4 models and uses OEM part numbers for correct fit.

Are the filter and washer OEM?
Yes, the oil filter, O-ring and crush washer included are genuine Honda components designed to match factory replacements.