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The WG9000360514 Differential Lock Cylinder is the pneumatic muscle that forces the locking sleeve into place.
As a cornerstone of our Sinotruk howo parts axle inventory, this cylinder is built to withstand the brutal environment under the chassis. It features a high-density aluminum alloy body and premium internal seals that prevent air leakage—the number one cause of differential failure. Whether you are running a 6×4 tipper or an 8×4 cargo truck, the WG9000360514 provides the precise mechanical stroke needed to sync your wheels and maximize traction when the road gets tough.
Inlet Thread: M12 x 1.5 (Standard HOWO Air Line Fitment)
Stroke Length: Engineered to OEM Steyr specifications for instant lock/unlock
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To ensure your Sinotruk howo parts perform as intended, our technical team suggests following these steps during the replacement of the WG9000360514:
System Debris Clear-out: Before installing the new cylinder, blow out the air supply line. Small particles of rubber or rust from old hoses can easily clog the cylinder’s inlet and cause it to stick.
O-Ring Lubrication: Apply a thin layer of pneumatic-grade silicone grease to the piston rod seal. This prevents dry-rot and significantly extends the life of the cylinder in extreme temperatures.
Alignment Check: When mounting the cylinder to the axle housing, ensure the actuating fork is aligned. Forcing a misaligned cylinder will lead to bent rods and incomplete differential engagement.
Solenoid Valve Sync: A failing diff-lock is often caused by a weak solenoid valve rather than the cylinder itself. We recommend testing the air pressure at the hose end before condemning the old WG9000360514.
Post-Install Test: Lift the axle (if possible) and engage the lock to verify the "Diff-Lock" dash light triggers correctly. This ensures the internal sensor and the cylinder are working in harmony.
