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High-performance replacement shift fork designed specifically for Sinotruk HOWO heavy-duty truck transmissions using helical-cut gears. Direct OEM-equivalent fit for part number WG2214220072, engineered to ensure smooth gear engagement and long service life in demanding transport, mining, and construction environments.
This part is compatible with popular HOWO models including ZZ1257N3817C, ZZ4257M3217C, HOHV AC5, and TC series, especially those fitted with HW19710 and HW19712 manual transmissions. Whether you’re servicing one truck or managing a cross-border fleet, this durable component delivers consistent performance at a competitive price.
Compatible Trucks: Sinotruk HOWO ZZ1257, ZZ4257, AC5, TC Series
Packaging: Industrial carton with foam padding – 1 pc per box
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How to Install the Sinotruk HOWO Shift Fork (WG2214220072) – Technician Tips
Pre-Work Check: Disconnect battery ground, drain transmission oil, and safely remove gearbox. Clean all external surfaces before disassembly.
Selector Rod Access: Remove the shift rail plug and extract the selector rod. Take note of fork orientation — this model engages with the 3rd/4th gear synchro sleeve.
Fork Removal: Loosen retaining bolt and slide off old fork. Inspect for groove wear or bending — common failure signs include grinding noises during shifts.
New Fork Fitment: Slide new WG2214220072 fork onto the selector rod. Ensure legs align precisely with the synchronizer hub; there should be no lateral play.
Torque & Reassembly: Tighten mounting bolt to 20 Nm ± 2 Nm. Over-tightening may crack the fork base. Reinstall rail and test movement by hand before closing case.
Final Test: Refill with recommended GL-5 80W-90 gear oil. Perform neutral-to-gear cycling manually if possible. Start engine only after full reassembly.
