Honda TRX400EX 99‑14 TRX400X Oil Change Filter Tune‑Up Kit – Moose Offroad 10W‑40 Made in USA + NGK DPR8Z + HiFlo Filtro

OVERVIEW

This complete oil change and tune-up kit streamlines routine maintenance for the Honda TRX400EX lineup. It pairs two quarts of OEM-spec Moose Offroad 10W-40 motor oil with a HiFlo Filtro oil filter and an NGK DPR8Z spark plug. Every required service component arrives in a single package manufactured under verified quality controls.

ENGINEERING & PERFORMANCE

The OEM-spec 10W-40 formula maintains stable viscosity across shifting temperatures, ensuring consistent lubrication for two- and four-stroke engines. Paired with a paper-media filter that passes sixteen independent quality checks, the system traps particulate matter before it reaches sensitive bearing surfaces. The companion spark plug utilizes a pure alumina silicate ceramic insulator and copper core to extract combustion heat efficiently, while trivalent metal plating resists corrosion during teardown. These engineered tolerances mechanically reduce friction and deliver steadier throttle response during loaded trail operation.

KEY FEATURES

• Complete oil change and tune-up kit
• Moose Offroad 10W-40 motorcycle/ATV OEM-spec motor oil
• Two-quart oil container (Made in the USA)
• HiFlo Filtro premium oil filter
• NGK DPR8Z spark plug
• Trivalent metal plating for anti-corrosion properties
• Pure alumina silicate ceramic insulator and copper core
• Triple seal design prevents gas and oil leakage
• Corrugated ribs suppress electrical flashover
• Built for demanding Japanese ATV duty cycles
• Matches approximate 1.9-quart reservoir capacity

TECHNICAL SPECIFICATIONS

• Brand: Moose Offroad, NGK, HiFlo Filtro
• Part Name: Honda TRX400EX/TRX400X Maintenance Kit
• Kit Type: Complete / Oil + Filter / Tune-Up
• Oil Type & Weight: Moose Offroad 10W-40
• Filter Model: HiFlo Filtro (Premium Grade)
• Supported Years: 1999–2014
• Compatible Trims: TRX400EX, TRX400X Sportrax

FITMENT

• Honda TRX400EX (1999–2014)
• Honda TRX400X Sportrax (2009–2014)

WHY RIDERS CHOOSE THIS

Riders prefer this assembly because it consolidates fluid replacement, filtration service, and ignition maintenance into one precisely matched set. The stable-viscosity oil paired with a rigorously inspected filter circuit prevents early contaminant buildup while protecting ring lands and main journals during long rides. Simultaneously, the copper-core NGK plug handles sustained thermal stress, eliminating fouling risks that often trigger misfires between scheduled services. By synchronizing flow rates, filtration ratings, and heat dissipation to the native TRX architecture, the kit delivers reliable cold weather starts and consistent torque delivery throughout the maintenance window.