The 080V03400-6014 cylinder head cover assembly is a critical component that seals the top of the engine, protecting the valvetrain, camshafts, and rocker arms from external contaminants while keeping engine oil contained under pressure. Its primary functions include preventing oil leaks, reducing engine noise, and providing a mounting point for breather hoses and sensors. In heavy‑duty diesel engines, the cylinder head cover is subjected to high temperatures, thermal cycling, and vibration. A cracked, warped, or poorly sealing cover can lead to oil leaks, oil contamination, increased emissions, and even engine damage. By installing the genuine 080V03400-6014 cylinder head cover assembly, you restore factory‑specified sealing, oil separation, and noise reduction, ensuring reliable engine operation and extended service life.
Leak‑Proof Sealing
Precision‑machined mating surfaces and integrated gasket groove ensure a tight, reliable seal against oil leakage.
Heat & Warp Resistance
Manufactured from high‑grade aluminium alloy with advanced casting and heat‑treatment processes for dimensional stability.
Integrated Oil Separation
Internal baffles and oil separator channels reduce oil mist carryover, minimising oil consumption and emissions.
OEM‑Exact Fit
Manufactured to Sinotruk’s original specifications – direct replacement with no modifications.
| Parameter | Specification |
|---|---|
| OEM Number | 080V03400-6014 |
| Product Name | Cylinder Head Cover Assembly |
| Brand | HOWO / Sinotruk |
| Material | High‑grade aluminium alloy (A356 / AC4C equivalent) |
| Operating Temperature | -40°C to +150°C |
| Overall Length | ~ 620 mm |
| Width | ~ 280 mm |
| Weight | ~ 4.5 kg (including baffles and gasket) |
| Quality Standard | Original Sinotruk / HOWO OEM specification |
The 080V03400-6014 cylinder head cover assembly is a direct replacement for the original component used in a wide range of HOWO and Sitrak heavy‑duty diesel engines. It is a critical part of the valvetrain sealing system and is commonly specified for:
The 080V03400-6014 cylinder head cover assembly is manufactured to the highest quality standards, ensuring it outperforms generic aftermarket alternatives. Cast from premium aluminium alloy using a low‑pressure, high‑integrity process, the cover offers excellent thermal conductivity, high strength, and outstanding resistance to thermal fatigue. The sealing surface is precision‑machined to provide a perfectly flat, smooth interface for the gasket, ensuring leak‑free operation. Internal oil separator baffles are cast‑in, reducing oil mist carryover and improving crankcase ventilation efficiency. Each cover is pressure‑tested for casting integrity and inspected for dimensional accuracy to guarantee perfect fitment. This commitment to quality translates into reliable oil sealing, reduced emissions, and extended engine service life.
Precision Casting
Low‑pressure casting process ensures consistent wall thickness and metallurgical integrity.
Heat Treatment
Advanced T6 heat treatment optimises strength and dimensional stability at elevated temperatures.
100% Pressure Tested
Every cover is tested for casting porosity and sealing integrity before assembly.
Genuine OEM Quality
Built to Sinotruk’s original specifications – guaranteed fit, form, and function.
Installing the 080V03400-6014 cylinder head cover assembly 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 cylinder head sealing surface and inspect it for damage or distortion. Use a new, genuine cylinder head cover gasket and apply a small amount of sealant at the recommended joint locations (as specified in the manual). Carefully position the cover over the studs or bolts, ensuring the oil separator and breather openings align correctly. Tighten the retaining bolts to the specified torque in the correct sequence to ensure even clamping and prevent warping. After installation, reconnect all breather hoses and sensors, then start the engine and check for oil leaks. During routine maintenance, inspect the cover for signs of cracking, oil seepage around the gasket, or damage to the oil filler cap.
Choosing the 080V03400-6014 genuine cylinder head cover assembly is an investment in the long‑term reliability and performance of your HOWO or Sitrak engine. Inferior aftermarket covers often use lower‑grade aluminium, imprecise castings, and inadequate sealing surfaces – leading to oil leaks, warping, and increased emissions. By using a genuine OEM component that adheres to Sinotruk’s exacting standards, you guarantee perfect fitment, consistent sealing, and maximum durability. Fleet operators and workshop professionals worldwide trust this cover to maintain the integrity of their engines, 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 080V03400-6014 cylinder head cover assemblies for all our engine overhauls. The fit is perfect, the sealing is reliable, and we have completely eliminated oil leaks from the top end. This is the only cover we trust for our fleet.”
The 080V03400-6014 cylinder head cover assembly 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 cover fitted at the factory, ensuring a seamless swap without any modifications. Always confirm the OEM number 080V03400-6014 on your original cover 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 are subjected to the most punishing conditions – from freezing cold starts to scorching desert heat, from constant high‑load operation to the corrosive effects of moisture and road salts. The 080V03400-6014 cylinder head cover assembly is engineered to withstand these extremes. Its high‑grade aluminium alloy and precision heat treatment ensure resistance to thermal fatigue, warping, and cracking, even after thousands of thermal cycles. The advanced sealing surface maintains its flatness and integrity, ensuring a consistent, leak‑free seal over the entire service life of the engine. This cover 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 dimensional stability and sealing integrity.
Vibration & Impact Resistant
Robust construction withstands constant engine vibration and shock loads without cracking or loosening.
Corrosion Protection
Advanced powder‑coat finish provides long‑term resistance to moisture, salt, and chemicals.
High Fatigue Life
Designed for millions of thermal cycles under rated load, meeting or exceeding OEM durability requirements.
The 080V03400-6014 cylinder head cover assembly is supplied in robust, purpose‑designed packaging to ensure safe delivery and convenient storage. Each cover is individually wrapped in anti‑corrosion material and secured within a heavy‑duty carton with foam inserts to prevent any damage during transit. The package includes the fully assembled cover complete with integrated oil separator baffles and the necessary mounting hardware (bolts and sealing washers are sold separately). Bulk ordering options are available for workshops, fleet maintenance depots, and OEM service centres, offering significant cost savings and streamlined inventory management. Every pack is clearly labelled with the OEM number 080V03400-6014, product name, and applicable vehicle models for easy identification. Always verify the OEM number on the label before installation to guarantee you are using the correct genuine component.
OEM: 080V03400-6014 | Genuine HOWO / Sitrak Cylinder Head Cover Assembly
Choose 080V03400-6014 cylinder head cover assembly – the professional‑grade top‑end component that delivers leak‑free sealing, exceptional durability, and reliable performance for your HOWO or Sitrak truck.
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