

The 080V01903-0301 timing gear housing gasket plays a vital role in maintaining the integrity of the engine’s timing system. Positioned between the timing gear housing and the cylinder block, this gasket seals the internal oil passages that lubricate the camshaft bearings, idler gears, and the high‑pressure fuel pump drive. In heavy‑duty diesel engines, the timing gear area is subjected to high oil pressures, extreme temperatures, and constant vibration. A degraded or incorrectly fitted gasket can lead to oil seepage, loss of oil pressure, contamination of the timing gears with dirt or coolant, and ultimately, catastrophic engine failure. By installing the genuine 080V01903-0301 gasket, you restore factory‑specified sealing, ensuring that the timing gears operate in a clean, well‑lubricated environment, maximising engine life and minimising downtime.
Leak‑Proof Sealing
Precision‑cut apertures and high‑quality material ensure a tight seal, preventing oil leakage and maintaining system pressure.
Heat & Oil Resistance
Manufactured from advanced composite material that withstands high temperatures and resists oil degradation.
Premium Material
Manufactured from high‑grade, non‑asbestos material with excellent compressibility and recovery properties.
OEM‑Exact Fit
Manufactured to Sinotruk’s original specifications – direct replacement with no modifications.
| Parameter | Specification |
|---|---|
| OEM Number | 080V01903-0301 |
| Product Name | Timing Gear Housing Gasket (E012) |
| Brand | HOWO / Sinotruk |
| Gasket Type | Timing gear housing / front cover gasket |
| Material | High‑grade cellulose / aramid composite, nitrile‑bonded |
| Operating Temperature | -40°C to +150°C |
| Max. Oil Pressure | 10 bar (1.0 MPa) |
| Thickness | 1.2 mm ± 0.1 mm |
| Quality Standard | Original Sinotruk / HOWO OEM specification |
The 080V01903-0301 timing gear housing gasket is a direct replacement for the original gasket used in a wide range of HOWO and Sitrak heavy‑duty diesel engines. It is commonly specified for:
The 080V01903-0301 timing gear housing gasket is manufactured to the highest quality standards, ensuring it outperforms generic aftermarket alternatives. Made from a premium cellulose/aramid composite with a nitrile binder, this gasket offers exceptional resistance to engine oil, coolant, and combustion by‑products. The material is engineered to maintain its sealing properties over a wide temperature range, providing consistent compressibility and recovery even after repeated thermal cycles. Each gasket is precision‑die‑cut to exacting tolerances, ensuring perfect alignment with bolt holes, oil passages, and locating dowels. This commitment to quality translates into a reliable, leak‑free seal that protects your engine from oil loss and contamination, reducing the risk of costly repairs and unplanned downtime.
Precision Die‑Cutting
Every aperture and bolt hole is accurately positioned for a perfect fit and easy installation.
Heat & Oil Resistant
Advanced composite material resists hardening, cracking, and swelling in high‑temperature oil environments.
100% Dimensional Inspection
Every gasket is verified against OEM drawings to guarantee perfect alignment and sealing.
Genuine OEM Quality
Built to Sinotruk’s original specifications – guaranteed performance and reliability.
Installing the 080V01903-0301 timing gear housing gasket requires careful preparation and attention to detail. Always refer to the appropriate workshop manual for your HOWO or Sitrak model. Before installation, thoroughly clean the mating surfaces of the timing gear housing and the cylinder block, removing all traces of old gasket material, oil, and debris. Inspect both surfaces for flatness, nicks, or corrosion – any imperfections should be addressed before fitting the new gasket. Position the gasket over the locating dowels, ensuring that all bolt holes and oil passages align correctly. Install the timing gear housing and tighten the retaining bolts to the specified torque in the correct sequence to ensure even clamping pressure. During routine maintenance, inspect the area around the timing gear housing for signs of oil leakage, and replace the gasket if any seepage is detected.
Choosing the 080V01903-0301 genuine timing gear housing gasket is an investment in the long‑term reliability and performance of your HOWO or Sitrak engine. Inferior aftermarket gaskets often use lower‑grade materials, imprecise cutouts, and inadequate sealing properties – leading to oil leaks, contamination, and costly engine damage. By using a genuine OEM component that adheres to Sinotruk’s exacting standards, you guarantee perfect fitment, consistent sealing performance, and maximum durability. Fleet operators and workshop professionals worldwide trust this gasket to maintain the integrity of their timing gear housings, reduce unplanned downtime, and lower overall maintenance costs. With its proven quality and reliability, it is the definitive choice for those who demand excellence.
“We have standardised on the 080V01903-0301 timing gear housing gaskets for all our engine overhauls. The fit is perfect, the seal is reliable, and we have completely eliminated oil leaks from the timing cover area. This is the only gasket we trust for our fleet.”
The 080V01903-0301 timing gear housing gasket is designed to fit a comprehensive range of HOWO and Sitrak heavy‑duty trucks, including the most popular models. It is a direct replacement for the original gasket fitted at the factory, ensuring a seamless swap without any modifications. Always confirm the OEM number 080V01903-0301 on your original gasket or by cross‑referencing your vehicle’s VIN with the Sinotruk parts catalogue. For any uncertainty, consult your local HOWO or Sitrak dealer with your chassis number.
HOWO and Sitrak engines operate in some of the harshest conditions imaginable – from Arctic cold to desert heat, from constant high‑load operation to the corrosive effects of moisture and road salts. The 080V01903-0301 timing gear housing gasket is engineered to withstand these extremes. Its advanced composite material maintains its sealing properties across a wide temperature range, resisting hardening, cracking, and swelling. The gasket’s precision‑cut design ensures that it compresses evenly under bolt load, maintaining a consistent seal even when subjected to thermal expansion and contraction. This gasket is built to deliver reliable, maintenance‑free performance for the entire service life of your engine, reducing unplanned downtime and repair costs.
Extreme Temperature Tolerance
Reliable from -40°C to +150°C – maintains sealing integrity across the full operating range.
Vibration & Impact Resistant
Robust material and precise fit withstand engine vibration without loosening or losing sealing force.
Oil & Chemical Resistance
Advanced composite material resists degradation from engine oil, coolant, and combustion by‑products.
High Pressure Capability
Designed to withstand oil pressures up to 10 bar, ensuring leak‑free performance even under high load.
The 080V01903-0301 timing gear housing gasket is supplied in protective packaging to ensure safe delivery and convenient storage. Each gasket is individually sealed in a plastic bag to prevent contamination and damage. Bulk packaging options are available for workshops, fleet depots, and OEM service centres, offering cost savings and streamlined inventory. Every pack is clearly labelled with the OEM number, product name, and key specifications for easy identification. Always verify the OEM number 080V01903-0301 on the label before installation to ensure you are using the correct genuine component.
OEM: 080V01903-0301 | Genuine HOWO / Sitrak Timing Gear Housing Gasket (E012)
Choose 080V01903-0301 timing gear housing gasket – the professional‑grade sealing solution that delivers leak‑free performance, exceptional durability, and reliable operation for your HOWO or Sitrak truck.