Introduction

This Differential Input Oil Seal WG7117329001-1 is a professional OEM sealing component specially designed for SINOTRUK HOWO heavy-duty trucks, dump trucks and tractor units. It is installed at the input end of the drive axle differential assembly, serving as a critical barrier for the axle transmission system.

The differential input oil seal undertakes dual core protection functions. It effectively locks internal differential lubricating oil to prevent oil leakage and dry friction, while completely blocking external dust, muddy water, sand and impurities from invading the differential interior. Working continuously under high-speed rotation, high temperature and heavy-load driving conditions, this oil seal adopts high-toughness oil-resistant rubber and integrated metal frame structure. With precise lip design and excellent aging resistance, it maintains stable sealing performance for a long time. It solves common faults such as differential oil leakage, gear wear, abnormal noise and axle overheating, effectively protecting the differential gear set and bearing assembly. It is an essential wearable replacement part for daily maintenance of SINOTRUK heavy truck drive axles.

Key Features

✅️Exact OEM Standard WG7117329001-1

Strictly manufactured according to original factory inner diameter, outer diameter, height and installation tolerance. 100% perfect fit for SINOTRUK HOWO differential input position, supporting direct plug-and-play replacement without cutting or modification, ensuring zero assembly gap.

✅️Metal & Rubber Integrated Structure

Adopts high-hardness integral metal outer frame + high-elasticity industrial rubber inner layer. The overall structure is firm and not easy to deform. It can resist high-speed rotation vibration and axial pressure, maintaining stable sealing tightness for long-term operation.

✅️Excellent Oil Locking & Sealing Performance

Precision polished sealing lip closely fits the input shaft surface, realizing uniform pressure and zero oil seepage. It stably locks differential gear oil, ensures sufficient internal lubrication, and avoids gear dry grinding and ablation failure.

✅️Super Dustproof & Waterproof Capacity

Effectively isolates external sediment, muddy water and humid air, preventing internal gear rust, impurity accumulation and bearing corrosion. It greatly reduces differential wear and extends the service life of the entire axle assembly.

✅️High Temperature & Aging Resistance

Upgraded rubber formula features outstanding heat resistance, oil resistance and anti-aging performance. It will not harden, crack or fail under long-term high-temperature operation of the drive axle, adapting to heavy-load and harsh road working conditions.

✅️Avoid Costly Axle System Failures

Effectively solves typical faults such as differential oil leakage, driving abnormal noise, axle overheating and power attenuation caused by seal failure, reducing fleet maintenance costs and vehicle downtime loss.

✅️Stable Aftermarket Hot-Selling Part

Standard commonly-used wearable part for SINOTRUK HOWO drive axle maintenance. Widely stocked by truck repair shops and spare parts wholesalers, with stable repeat orders in Africa, Central Asia and Southeast Asian heavy truck markets.

Detail

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Contact with clear photo of engine nameplate or chassis number:

Linda Zhang

Whatsapp:+86 176 6066 8410

EMAIL:sales16@chinatruck.cc