SPECIFICATIONS

Brand Name: M MATI

Origin: Mainland China

Item Weight: 2 KG

Material Type: iron

For ATV Brand/Model: Honda

Special Features: Original accessories

Model Name: LHK0177

MPN：  41300-HM5-A10 41300-HC4-000 41300-HC5-970 41300-HM5-850 

Abbreviation：   41300-HM5-A10 41300-HC4-000 41300HC5970 

Warranty： 1 year 

Package：Rear Differential x 1

🛠️ Installation Tips

• Clean the Housing: Before installation, thoroughly clean the inside of the rear axle housing. Remove any metal shavings or debris left by the old unit to prevent damage to the new gears.

• Lubricate Splines: Apply a high-quality molybdenum grease to the axle splines and drive shaft before assembly for smooth operation and to prevent rust.

• Refill Gear Oil (CRITICAL): The unit is shipped without gear oil or with only a small amount of anti-rust oil. You must fill it with the recommended gear oil (typically SAE 80W-90) to the proper level before the first ride.

• Check Axle Seals: We highly recommend inspecting and, if necessary, replacing your outer axle seals and bearings at the same time to ensure a completely leak-free system.

• Torque Pattern: Tighten all mounting bolts in a criss-cross (star) pattern to the manufacturer's specified torque to ensure even pressure on the casing.

• Break-in Period: Avoid heavy towing or high-speed operation for the first 5-10 hours of use to allow the new gears to mesh and "seat" properly.

Fit for Honda ATV：

FourTrax 300 2x4 TRX300 1988-2000

FourTrax 300 4x4 TRX300FW 1988-2000

Notice: Not Compatible With TRX300EX Sportrax Edition

Issue	Possible Cause	Solution
Whining or Grinding Noise	Low gear oil level or worn external axle bearings.	Check and refill gear oil immediately. Inspect the outer axle bearings; often the noise originates there rather than inside the differential.
Oil Leaking from Seals	Damaged oil seals or a clogged vent tube.	Replace the input or axle seals. Check that the breather/vent tube is clear; pressure build-up from a clog can force oil past the seals.
Wheels Not Turning	Stripped axle splines or drive shaft coupler failure.	Remove the axle and inspect the splines. If the splines on your axle are worn down, the new differential will not be able to engage and turn the wheels.
Differential Binding/Stiffness	Incorrect oil viscosity or debris in the housing.	Use only high-quality 80W-90 gear oil. If you find metal flakes in the oil, flush the housing completely to remove contaminants.
Excessive Vibration	Loose mounting bolts or misaligned drive shaft.	Re-check all mounting hardware and ensure the drive shaft is properly seated and aligned with the input shaft.