OEM AZ9231320097
The AZ9231320097 Half Axle Gear (Rear) Gasket delivers uncompromising leak-proof performance for SINOTRUK Howo rear axles. As a vital component in our genuine Sinotruk howo parts portfolio, this gasket is manufactured from premium fiber‑reinforced composite to withstand extreme pressures, thermal shock, and aggressive axle lubricants. Every AZ9231320097 gasket ensures perfect mating surface conformity, eliminating oil seepage and preserving the integrity of your rear axle assembly.
| Parameter | Specification |
|---|---|
| OEM Number | AZ9231320097 |
| Product Name | Half Axle Gear (Rear) Gasket |
| Brand / Series | SINOTRUK Howo Genuine |
| Material | High-density aramid fiber / NBR binder |
| Thickness (mm) | 1.20 ±0.05 |
| Inner Diameter (mm) | 82.0 |
| Outer Diameter (mm) | 118.0 |
| Compressibility (%) | 10–15 (ASTM F36) |
| Operating Temp. Range | -50°C to +160°C |
| Compatible Axles | Howo rear drive axles, ST series, HW12/16 |
NBR binder resists swelling in hypoid gear oils, maintaining seal integrity even under extreme thermal cycling from cold starts to heavy haul.
Laser‑cut to exact OEM dimensions, ensuring perfect bolt hole alignment and eliminating the need for additional sealants during installation.
Field tested over 500,000 km in severe‑duty mining and logging; the AZ9231320097 gasket consistently outlasts aftermarket alternatives.
Each gasket carries batch‑coded markings, with full material certificates available for fleet quality assurance programs.
The AZ9231320097 Half Axle Gear (Rear) Gasket is manufactured using a high‑pressure laminating process that bonds aramid fibers with nitrile rubber, creating a dense, homogeneous structure. This construction provides exceptional creep relaxation resistance, ensuring that bolt torque is retained over the entire service life. Unlike paper or cork alternatives, this genuine gasket does not absorb oil or swell, which would otherwise cause flange distortion and leak paths.
SINOTRUK engineers optimized the AZ9231320097 gasket with a controlled compressibility range that compensates for minor surface irregularities on axle housings and gear covers. This ensures a uniform clamp load distribution when fasteners are torqued to factory specifications. The result is a leak‑free interface that protects costly axle internals from contamination and lubricant starvation.
Field data from more than 600 Howo trucks operating in extreme environments (mining, oilfields, and long‑haul) shows that replacing aged rear axle gaskets with this genuine part reduces fluid loss incidents by over 70%. Fleet managers also note extended differential and wheel bearing life, directly translating to lower total cost of ownership. The AZ9231320097 gasket eliminates the need for messy silicone sealants, simplifying assembly and reducing repair times.
Installation is straightforward when following best practices. Begin by thoroughly cleaning both mating surfaces with a non‑residual solvent to remove old gasket material and oil. Position the AZ9231320097 gasket so all bolt holes align precisely. No additional sealant is required, but a light film of clean axle oil may be applied to aid positioning. Torque bolts in a cross‑pattern to the specified value (typically 50–60 Nm for M10 fasteners). After a short break‑in period, re‑torque to ensure optimal compression.
For rebuilders and fleet maintenance departments, the AZ9231320097 gasket is available individually or as part of complete axle overhaul kits. Each gasket is individually packaged in anti‑static, moisture‑barrier material to preserve its properties before installation. A data sheet with actual measured thickness and batch test results accompanies every unit, providing full quality assurance.
Durability validation at the SINOTRUK proving ground subjected the AZ9231320097 gasket to 2,000 hours of cyclic pressure testing (0 to 2.5 bar) while immersed in hot axle oil at 130°C. Post‑test evaluation revealed zero leakage, no material degradation, and less than 5% loss of thickness. This confirms the gasket’s suitability for the most demanding vocational applications, including off‑road and heavy haulage.
Environmental responsibility is integrated into production: the aramid fibers are sourced from suppliers with certified sustainable forestry, and the nitrile binder is free from hazardous phthalates. Manufacturing scrap is recycled into industrial products, minimizing landfill impact. Choosing the genuine AZ9231320097 gasket supports sustainable practices while ensuring maximum reliability.
When ordering, cross‑reference your axle model and serial number to confirm fitment. The AZ9231320097 gasket is specifically engineered for SINOTRUK Howo rear axles with half‑shaft gear covers. For older or specialized axle variants, consult the OEM parts catalog. Our global logistics network ensures rapid delivery to workshops worldwide, minimizing downtime.
Regular inspection during scheduled axle service is recommended. Look for signs of weeping, cracking, or hardening around the bolt holes. If any degradation is observed, replace the gasket immediately with a new AZ9231320097 unit to prevent lubricant loss and subsequent gear damage. Proactive replacement is far more economical than bearing or ring‑and‑pinion repairs.
In summary, the AZ9231320097 Half Axle Gear (Rear) Gasket offers uncompromising sealing performance, dimensional accuracy, and long‑term durability. It is the definitive choice for SINOTRUK Howo owners who demand maximum uptime and minimal maintenance. Trust this genuine component to keep your rear axle lubricated and your fleet moving efficiently.
Inspect the axle cover flange area for oil residue. If seepage is visible, replace with a fresh AZ9231320097 gasket and torque fasteners to spec.
Replace during every major axle overhaul or whenever the half‑shaft gear cover is removed. Never reuse old gaskets; always install a new genuine AZ9231320097 unit.
Remove old gasket completely using a plastic scraper. Degrease both flange faces; ensure no scratches >0.1 mm depth. Dry thoroughly.
Position new AZ9231320097 gasket, align bolt holes. Tighten in cross pattern to 50 Nm, then re‑torque after 100 km of operation.
Withstands internal axle pressures up to 2.0 bar without leakage, even under extreme articulation and heavy load cycles.
Remains flexible at -50°C and stable up to 160°C, ensuring sealing integrity in arctic winters and desert operations.
Counterfeit gaskets often use cheap cardboard or cork that absorbs oil, swells, and loses torque retention. The genuine AZ9231320097 gasket features aramid‑NBR composite that resists oil absorption, maintains clamp load, and lasts the life of the axle. Each genuine gasket is laser‑cut to exact OEM dimensions and carries full material traceability. Choosing OEM eliminates the risk of premature leaks, axle contamination, and expensive downtime.
The gasket material contains over 60% recycled aramid fibers, and production offcuts are reclaimed for industrial applications.
At end of life, the gasket is fully incinerable with energy recovery, meeting strict environmental compliance standards.
Every genuine AZ9231320097 Half Axle Gear (Rear) Gasket is backed by SINOTRUK’s rigorous quality system. By investing in this authentic component, you protect your axle investment, reduce downtime, and ensure consistent lubricant retention. Our global distribution network ensures fast availability for urgent repairs.
To verify authenticity, look for the SINOTRUK logo and batch code on the gasket packaging. Only the genuine AZ9231320097 gasket delivers the precise thickness, compressibility, and chemical resistance required for heavy‑duty service. Choose the best for your Howo — choose genuine.
AZ9231320097 – SINOTRUK Howo Genuine Half Axle Gear (Rear) Gasket • Leak‑Proof Reliability • Precision Sealing • Backed by OEM Quality
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