Flawless Sealing Performance: WG2229100141 Rear End Cover Gasket Of Output Shaft – Genuine SINOTRUK Howo - Heavy Truck Parts Store
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Flawless Sealing Performance: WG2229100141 Rear End Cover Gasket Of Output Shaft – Genuine SINOTRUK Howo

OEM WG2229100141
Ensure absolute sealing integrity at the transmission output with the WG2229100141 Rear End Cover Gasket Of Output Shaft, a precision‑engineered sealing component designed for SINOTRUK Howo heavy‑duty transmissions. As a critical part of our premium Sinotruk howo parts portfolio, this gasket is manufactured from high‑quality cellulose fiber with a nitrile rubber binder, providing exceptional resistance to transmission oils, coolants, and high temperatures. The WG2229100141 gasket guarantees a leak‑proof seal between the output shaft end cover and the transmission housing, preventing lubricant loss and contaminant ingress.

WG2229100141 Rear End Cover Gasket Of Output Shaft
Rear End Cover Gasket Of Output Shaft
Прокладка задней крышки выходного вала
Прокладка задней крышки выходного вала
Junta de la tapa trasera del eje de salida
Junta de la tapa trasera del eje de salida

Technical Specifications – SINOTRUK Howo Output Shaft Rear Cover Gasket WG2229100141

Parameter Specification
OEM NumberWG2229100141
Product NameRear End Cover Gasket Of Output Shaft
MaterialCellulose fiber / NBR (nitrile) binder
Thickness0.8 mm
Outer Dimensions (approx.)165 mm x 140 mm (oval)
Bolt Hole Count6
Temperature Range-40°C to +150°C
Compressibility20-25% @ 35 MPa
Recovery≥ 50%
Compatible ModelsHowo HW19710 / HW19712, A7, T7H, ZZ4257, ZZ1257

Key Advantages of the WG2229100141 Rear End Cover Gasket

Premium Fiber/NBR Composite

The gasket material combines high‑strength cellulose fibers with a nitrile rubber binder, offering excellent resistance to transmission fluids, engine oils, and coolants.

Precision Die‑Cut

Each gasket is precision die‑cut to exact OEM specifications, ensuring perfect alignment of bolt holes and sealing surfaces every time.

High Compressibility & Recovery

Optimized compressibility compensates for minor surface irregularities, while excellent recovery maintains a tight seal even after thermal cycling.

100% Visual Inspected

Every gasket undergoes visual inspection for cut quality, thickness uniformity, and absence of defects, guaranteeing reliable performance.

Applications of the WG2229100141 Gasket

This gasket is a direct replacement for the following SINOTRUK Howo transmission positions:

  • Howo HW19710 rear output shaft end cover
  • Howo HW19712 auxiliary box rear cover
  • Howo A7 range change output housing
  • Howo T7H transmission rear flange
  • ZZ4257 transfer case output cover
  • ZZ1257 rear axle differential cover (selected models)
  • Mining truck transmission rebuilds
  • Long‑haul fleet preventive maintenance kits

The WG2229100141 rear end cover gasket is a precision sealing component designed to prevent oil leaks at the output shaft of SINOTRUK Howo transmissions. It is manufactured from a high‑quality cellulose fiber material impregnated with a nitrile rubber (NBR) binder, which provides excellent resistance to transmission oils, gear lubricants, and coolants. The material is formulated to maintain its sealing properties over a wide temperature range, from -40°C to +150°C, ensuring reliable performance in all climates.

In heavy‑duty applications, the output shaft end cover is subjected to constant vibration, thermal expansion, and pressure fluctuations. The WG2229100141 gasket is engineered with optimal compressibility (20‑25%) to conform to minute surface irregularities on the mating flanges, creating a tight, long‑lasting seal. Its recovery characteristics (≥50%) ensure that the gasket maintains sealing force even after repeated thermal cycles, preventing leaks that could lead to lubricant loss and component damage.

Installation of this gasket is straightforward. Thoroughly clean the mating surfaces of the transmission housing and the end cover, removing any old gasket material. Place the new WG2229100141 gasket over the dowel pins or align it with the bolt holes. Apply a thin film of assembly lubricant or gasket dressing if desired (not required). Install the end cover and tighten the bolts in a star pattern to the specified torque (typically 25‑30 Nm). Never reuse an old gasket; always replace it with a new one during service.

Quality control for this gasket includes 100% visual inspection of the die‑cut profile, ensuring that all holes and contours match OEM drawings. The material is tested for tensile strength, compressibility, and fluid resistance. Samples from each batch are subjected to accelerated aging tests to verify long‑term durability. These rigorous checks guarantee that the WG2229100141 you receive will provide a perfect seal for hundreds of thousands of kilometers.

Environmental responsibility is embedded in production. The cellulose fibers are sourced from sustainably managed forests, and the NBR binder is free from hazardous substances. Manufacturing waste is minimized, and scrap material is recycled. At the end of its service life, the gasket can be disposed of safely; it is non‑hazardous and meets all relevant environmental regulations.

For transmission rebuilders and fleet maintenance departments, the WG2229100141 gasket is available individually or as part of a complete rear seal kit that includes the output shaft oil seal and O‑rings. Each gasket is packaged in a protective polybag to prevent damage or contamination. Bulk orders are shipped in reinforced cartons with clear labeling. A certificate of conformance with batch test data is included with every shipment.

Field feedback from over 200 fleet workshops indicates that using the genuine WG2229100141 gasket eliminates oil seepage at the output cover, a common problem with inferior aftermarket gaskets that shrink or harden over time. Technicians report a perfect fit every time, with no need for additional sealants. Fleet managers value the reduction in oil consumption and lower maintenance costs.

When ordering, always verify your transmission model and end cover configuration. The WG2229100141 is specifically designed for Howo HW19710 and HW19712 series transmissions. For other applications, consult the SINOTRUK parts catalog. Technical support is available through your local dealer – no contact details are listed here, in line with our policy.

In summary, the WG2229100141 rear end cover gasket is a small but essential component that ensures the sealing integrity of your SINOTRUK Howo transmission. Its precision manufacture, high‑quality material, and proven reliability make it the ideal choice for any heavy‑duty application.

Maintenance & Inspection Guidelines
Visual Checks

During routine service, inspect the area around the output shaft end cover for signs of oil leakage. If seepage is visible, replace the WG2229100141 gasket immediately. Check that all bolts are torqued correctly.

Installation Tips

Always clean both mating surfaces thoroughly and remove all old gasket residue. Never apply excessive sealant, as it can interfere with proper gasket compression.

Why Genuine WG2229100141 Outperforms Aftermarket Gaskets

Only the authentic WG2229100141 gasket uses the exact material formulation and thickness specified by SINOTRUK. Aftermarket imitations often use inferior fiber materials that shrink, harden, or lose compression over time, leading to oil leaks and potential transmission damage. The genuine gasket is 100% inspected and traceable to an ISO 9001 certified facility. Fleet data shows that OEM gaskets reduce output shaft seal failures by 60%.

Proper Installation Steps

Preparation: Remove the end cover. Clean the housing flange and cover mating surface with a scraper and solvent. Ensure both surfaces are dry and free of nicks.

Installation: Place the new WG2229100141 gasket onto the housing, aligning with dowel pins. Reinstall the cover and tighten bolts in a star pattern to the recommended torque.

After installation, refill transmission oil to the correct level and run the engine to check for leaks. Re‑torque bolts after 100 km of operation if required.

Performance Advantages of the WG2229100141 Gasket

Leak‑Free Operation

The optimized material and precise cut guarantee a perfect seal, eliminating oil drips and keeping the transmission clean.

Thermal Stability

The NBR binder maintains flexibility and sealing force from -40°C to +150°C, ensuring reliable performance in all climates.

Eco‑Conscious Manufacturing

Cellulose fibers are sourced from sustainable forestry; production waste is recycled.

At end of life, the gasket is non‑hazardous and can be disposed of with general industrial waste.

Every WG2229100141 gasket is laser marked with the part number for easy identification. When you order from our official distribution channel, you receive the latest production batch with consistent material properties and precise dimensions.

To verify authenticity, check the uniform color and the clean die‑cut edges. Our global network ensures rapid delivery to any heavy‑duty workshop. Trust this gasket to keep your Howo transmission sealed and reliable – it’s the small component that makes a big difference.


WG2229100141 – 100% Genuine SINOTRUK Howo Rear End Cover Gasket Of Output Shaft • Built for the long haul • No forms, just quality parts.

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