Basic Info

Part No.: WG2229100042 Product Name: Shift Fork Rocker Block Applicable Brand: SINOTRUK HOWO, HOHAN, Steyr Heavy Trucks Applicable Gearbox: HW series 10/12 speed auxiliary gearbox Core Function: It is the key swinging support part of the gearbox shift mechanism. It bears the reciprocating swing pressure of the shift fork, guides and limits the shift fork movement, ensures accurate meshing of high and low speed gears, and avoids shifting deviation and mechanical failure during heavy-load driving.

Manufacturing Process

Made of high-quality high-strength alloy steel with integral forging technology. After strict quenching and tempering heat treatment, the product features high overall hardness and strong toughness. All contact surfaces are precisely CNC machined with smooth tolerance, no burrs, ensuring perfect fitting and flexible movement with shift fork and gearbox housing. Each product is strictly inspected for size, hardness and surface defect before delivery to meet OEM standard.

Key Features

✅ Exact OEM Standard, Direct Fit

Standard OE number WG2229100042, fully consistent with original installation size and mounting hole position. No modification required for quick installation, perfectly compatible with SINOTRUK HW series gearbox models.

✅ High-Strength Forged Steel, Anti-Impact & Durable

Integral forging structure with professional heat treatment improves overall rigidity and toughness. Effectively resist frequent shifting impact and heavy-load torque pressure, not easy to deform or break, greatly extending service life.

✅ Precision Machining for Smooth Shifting

High-precision milling and polishing on contact surfaces ensure flexible swing of shift fork. Effectively solve common faults such as difficult shifting, gear jumping, shifting lag and transmission abnormal noise caused by worn rocker block.

✅ Excellent Wear & Fatigue Resistance

Reinforced surface hardness adapts to long-term high-frequency shifting working conditions of heavy trucks. Stable performance under harsh environments such as mountain roads, full-load transportation and long-distance driving, reducing gearbox maintenance frequency.

✅ Strict Quality Control & Stable Performance

100% dimensional inspection and hardness test before shipment. Uniform stress structure, stable mechanical performance, no crack or deformation, reliable for fleet long-term use and bulk export.

✅ Cost-Effective Factory Direct Supply

Direct sales from factory with competitive price, same quality as original parts. Ideal aftermarket replacement for truck repair shops, spare parts distributors and global trading companies.

Product Specification Table

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