SINOTRUK HOWO Gearbox Rear Cover Assembly AZ2220100105 for Heavy Truck Transmission
Eliminate structural transmission flex and prevent costly gear-oil leaks with ARCHER's genuine factory-direct SINOTRUK HOWO Gearbox Rear Cover Assembly (Part No: AZ2220100105). Cast from premium high-density structural alloy, this rugged housing cover is precision-machined to ensure a perfect, airtight seal over the rear gear train and output shaft seals.
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Product Details
HOWO Gearbox Rear Cover Assembly (AZ2220100105)
⚙️ Heavy-Duty Transmission Housing Rear Enclosure for High-Torque Truck Drivetrains
Product Overview
In severe logistics hauling, high-tonnage construction dump cycles, and long-distance freight transit, a heavy truck’s transmission housing is subject to extreme internal structural forces and massive mechanical heat dissipation. A micro-crack, warping, or porous mating surface on an inferior aftermarket gearbox rear cover can cause rapid transmission fluid weeping, shaft bearing misalignment, and eventual total gear failure. At ARCHER, we distribute premium factory-direct SINOTRUK HOWO Gearbox Rear Cover Assemblies (Part Number: AZ2220100105). Precision cast from top-tier structural alloy and surface-milled to flawless micron-level planarity, this genuine housing cover provides unyielding structural support for the transmission output bearings and holds a perfect oil seal under intense operational stress.
Technical Specifications Table
| Technical Parameter / Attribute | Engineering Specification Details |
|---|---|
| OEM Factory Part Number | AZ2220100105 / AZ 2220100105 |
| Gearbox Compatibility | SINOTRUK HW Series 10-Speed / 12-Speed Transmissions (e.g., HW19710, HW19712) |
| Material Configuration | High-Strength Structural Aluminum-Iron Cast Alloy (Lightweight & Heat Resistant) |
| Mating Face Precision | CNC Precision Ground / Micro-Finished for Leak-Free Gasket Sealing |
| Integrated Mount Paths | Output Shaft Oil Seal Bore, Auxiliary Gear Mounting Flanges, Odometer Sensor Port |
| Manufacturing Standard | Strict Original Manufacturer (OEM) Dimensional Tolerances |
Comprehensive Fleet Applications & Model Coverage
The AZ2220100105 gearbox rear housing cap serves as the precise rear envelope matching SINOTRUK heavy truck chassis running HW transmission setups. ARCHER guarantees absolute dimensional fitment for the following vehicle variants:
🌟 HOWO Heavy Construction & Vocational Fleets
Protects transmission gears from dust and retains vital lubrication during harsh off-road load shifts:
• SINOTRUK HOWO 7 6×4 Dump Trucks / Tippers
• SINOTRUK HOWO 7 8×4 Heavy Infrastructure Tippers
• HOWO Concrete Mixer Trucks & Heavy Machinery Transporters
🌟 Long-Distance Logistics & Commercial Tractors
Maintains cool internal oil circulation paths and bearing alignments during continuous long-haul transport:
• SINOTRUK HOWO 6×4 Prime Movers & Tractor Units
• SINOTRUK HOWO T7H / TX Heavy Cargo Delivery Trucks
• Specialized Multi-Axle Intercity Freight Rig Platforms
Core Performance Advantages
🛡️ Reinforced Shock-Absorbing Alloy
Cast with high-integrity metallurgical alloys that handle severe road vibrations and torsional drivetrain stress without micro-fracturing or cracking.
🛡️ CNC Precision Mating Surfaces
The main mounting flange is machined on advanced computer-guided mills to achieve perfect flat tolerances, eliminating transmission oil weeping points.
🛡️ Exact Flange Bore Positioning
Features perfectly aligned mounting bolt holes, oil seal bores, and sensor ports, providing an effortless drop-in fit for garage technicians.
Technical FAQ
1. Does part number AZ2220100105 include the rear output shaft oil seal and mounting bolts pre-assembled?
Our factory-direct AZ2220100105 is supplied as the raw machined alloy structural rear housing cover. Hardware such as output shaft seals, paper sealing gaskets, odometer sensors, and casing bolts are transferred from your original unit or purchased separately as installation service kits. If you require a pre-built kit, please specify your needs to our sales staff before container loading.
2. How can workshop mechanics prevent transmission fluid leaks when installing a new rear cover?
To achieve a complete, high-pressure seal, mechanics must thoroughly clean all old gasket residue off the main gearbox housing face. Apply a thin, uniform bead of high-temperature heavy-vehicle liquid sealant alongside a new genuine paper gasket, then torque all casing bolts in a cross-pattern sequence to factory-recommended settings.
3. Is this rear cover assembly universal for all SINOTRUK HW19710 transmission models?
The AZ2220100105 cover is explicitly engineered for standard variations of the HW19710 transmission line. However, specialized configurations—such as gearboxes fitted with rear-mounted Power Take-Off (PTO) units or different auxiliary range boxes—rely on modified housing curves. Please provide your gearbox data tag plate to our team to verify exact fitment.
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