Main Reducer Case AK8212511605030005 – Shacman Heavy Truck

Main Reducer Case / Final Drive Housing AK8212511605030005 — Shacman Heavy-Duty Truck Axle Housing

This main reducer case part number AK8212511605030005 is a Kingstream OEM final drive housing for Shacman heavy-duty trucks in construction, mining, logistics, and heavy transport applications. The main reducer case — also called the final drive housing or differential carrier housing — houses the differential ring and pinion gears, side gears, and axle shafts within the drive axle assembly. It provides structural support for the gear mesh alignment and contains the gear lubricant. Metal construction with standard weight. 1kg with 62×25×24cm packaging. High quality. Sample accepted. MOQ 10. 31-33 day delivery. Kingstream OEM for Shacman heavy truck fleet drivetrain maintenance.

INSTALLATION: Step 1 — Drain the differential oil. Step 2 — Remove the axle shafts by unbolting the shaft flanges at the wheel hubs and sliding the shafts out of the axle housing. Step 3 — Disconnect the drive shaft from the pinion flange. Step 4 — Unbolt the main reducer case from the axle housing. Step 5 — Remove the old case and transfer the differential assembly and ring gear to the new case. Step 6 — Set the pinion bearing preload and ring gear backlash using shims — use a dial indicator to measure and adjust to the Shacman specification. Step 7 — Check the gear tooth contact pattern with Prussian blue marking compound. Step 8 — Install the new case onto the axle housing with a new gasket. Torque bolts in a cross-pattern. Step 9 — Reinstall axle shafts and drive shaft. Step 10 — Refill the differential with the correct gear oil. Step 11 — Test drive and verify quiet differential operation. Kingstream OEM. For Shacman heavy truck drivetrain fleet maintenance, contact us. Kingstream OEM.

SYMPTOMS OF FAILURE: Gear oil leaking from the case, differential noise (howling/whining changing with speed), cracked case from impact damage, stripped bolt threads, and misalignment causing premature gear wear. Kingstream OEM.

Technical Specifications

MOQ 10. Sample accepted. Kingstream OEM. Contact us.