Introduction

This Inter-Axle Differential Planetary Gear WG9231320227 is a professional OEM transmission component specially designed for SINOTRUK HOWO heavy-duty trucks, dump trucks and tractor units. Installed inside the inter-axle differential assembly of the middle and rear drive axles, it serves as the core rotating gear for power distribution between the front and rear axles.

During vehicle driving, climbing and turning conditions, the inter-axle planetary gear cooperates with inter-axle side gears to reasonably distribute engine power to the front and rear drive axles, balancing rotational speed difference and reducing axle wear and power loss. Working under long-term high torque, heavy load and alternating impact conditions, this gear is manufactured with high-strength alloy steel and precise carburizing quenching heat treatment. It features high surface hardness, strong wear resistance and stable meshing accuracy. It effectively solves common faults such as abnormal axle noise, weak power output, gear jamming and differential locking failure, ensuring smooth power transmission and stable driving performance for heavy-duty vehicles. It is an essential replacement spare part for SINOTRUK heavy truck axle system maintenance.

Key Features

✅️Standard OEM Specification WG9231320227

Strictly follows original factory gear modulus, tooth profile, spline size and installation dimension. 100% precise matching for SINOTRUK HOWO inter-axle differential assembly, supporting direct replacement without modification, ensuring perfect meshing and zero assembly clearance.

✅️High-Strength Alloy Steel Forging

Adopts premium alloy steel integral forging technology, with high overall toughness and compression resistance. It can withstand super high torque impact and long-term heavy-load pressure, not easy to crack, deform or break under mining and mountain road working conditions.

✅️Precision Carburizing & Quenching Treatment

Professional heat treatment process hardens the gear tooth surface while maintaining core toughness. It greatly improves wear resistance, impact resistance and fatigue resistance, effectively avoiding tooth surface wear and tooth breaking failure.

✅️Stable Power Distribution & Smooth Meshing

High-precision tooth profile machining ensures tight and smooth meshing with side gears. It balances the speed difference between front and rear axles, reduces transmission vibration and noise, and realizes efficient and lossless power output.

✅️Effectively Solves Common Axle Faults

Perfectly fixes typical problems such as inter-axle abnormal noise, unbalanced power distribution, slow acceleration and differential locking failure caused by worn or damaged planetary gears, improving vehicle driving stability and passing performance.

✅️Strong Adaptability to Harsh Working Conditions

Stably adapts to heavy-load transportation, frequent climbing and bumpy complex road conditions. It maintains consistent transmission performance in high-dust and high-intensity working environments, reducing frequent axle maintenance.

✅️Popular Aftermarket Axle Spare Part

Standard wearable part for SINOTRUK HOWO drive axle repair and maintenance, widely stocked by truck parts wholesalers and repair shops, with stable repeat demand in global heavy truck aftermarket.

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