

Shacman WP10 Oil Filler Cover Assembly is an authentic heavy-duty engine component designed for WP10 series engines in Shacman trucks and construction machinery. This assembly guarantees leak-proof sealing, dust resistance, and reliable oil filler access under extreme operating conditions. Every original Shacman assembly undergoes rigorous quality tests to match OEM standards, delivering outstanding durability and engine protection.
Beyond the core components, the Shacman WP10 Oil Filler Cover Assembly integrates advanced injection-molded engineering. Each assembly is 100% factory tested for pressure retention, thread fit, and thermal stability. Whether you are replacing worn parts or performing preventive maintenance, this original Shacman unit restores the engine’s sealing integrity and boosts overall reliability.
With thousands of field-proven applications in off-road trucks, long-haul tractors, and mining vehicles, the Shacman WP10 Oil Filler Cover Assembly reduces unplanned downtime. The combination of a rugged Oil Filler Cap and a precision O-ring delivers consistent performance across all duty cycles, helping your engine achieve maximum service life.
| Part Number | Part Name |
|---|---|
| 1003834377 | Oil Filler Cap |
| 1003839523 | O-ring |
OEM-grade reliability: Every Shacman WP10 Oil Filler Cover Assembly meets strict original equipment specifications. The high-precision thread and sealing surfaces eliminate oil mist leaks, providing peace of mind for fleet operators and owner-drivers.
Extreme temperature endurance: The assembly withstands continuous engine heat up to 140°C without warping or losing sealing force. Combined with the premium O-ring, it maintains elasticity in arctic climates as well as desert operations, ensuring zero seepage.
Advanced engineering & durability: Manufactured using reinforced nylon and corrosion-resistant materials, this cover assembly resists cracking, UV damage, and chemical degradation. It provides more than 500,000 km service life under normal maintenance schedules.
Cost-effective genuine alternative: By choosing our Shacman WP10 Oil Filler Cover Assembly, you avoid frequent replacements caused by aftermarket copies. Enhanced sealing reduces oil consumption and contamination, lowering total cost of ownership significantly.
Dual-sealing lip and rubber O-ring interface stop any oil weepage even at high crankcase pressures.
Direct bolt-on replacement, no special tools needed. Fits all WP10 engine variants perfectly.
Glass-fiber reinforced housing resists impact and vibration fatigue for off-road usage.
Manufactured under IATF 16949 quality management system, traceable batch number.
Before installing, clean the filler neck surface thoroughly and inspect the O-ring for any damage. Lightly lubricate the O-ring with clean engine oil to ease seating.
Hand-tighten the Oil Filler Cap until resistance is felt, then turn an additional 15–20 degrees. Do not over-torque to avoid thread deformation.
Routine inspection: Check the cap seal and O-ring every oil change. Replace the O-ring if hardened or cracked to maintain perfect sealing performance.
Using genuine Shacman WP10 Oil Filler Cover Assembly prevents false engine error codes related to crankcase pressure irregularities.
Generic filler caps often lack precision molded threads, causing cross-threading and oil mist escape. The Shacman WP10 Oil Filler Cover Assembly features CNC-finished threads and a specially formulated rubber O-ring that maintains dimensional stability after thermal cycles.
Furthermore, original Shacman assemblies include an integrated anti-loss tether (optional design) and pressure relief valve that regulates internal crankcase pressure. This reduces seal stress and prolongs gasket life across the entire engine.
Laboratory tests confirm that our Shacman WP10 Oil Filler Cover Assembly withstands over 1 million vibration cycles without loosening, ensuring robust performance in mining, construction, and long-haul applications.
The Shacman WP10 Oil Filler Cover Assembly directly replaces OEM part numbers 1003834377 and 1003839523. It is compatible with WP10.270, WP10.290, WP10.336, WP10.350, WP10.375 engine models used in Shacman F2000, F3000, X3000, and Delong trucks.
Cross-compatibility also extends to certain heavy equipment using WP10 power units, including wheel loaders and bulldozers. Please verify your engine serial number before ordering.
Accelerated lifecycle testing under SAE J2643 standards proves that the Shacman WP10 Oil Filler Cover Assembly maintains sealing efficiency after 2,000 hours of continuous thermal shock (-30°C to 130°C). No measurable leakage or material degradation occurs.
Oil evaporation loss with this assembly is reduced by 18% compared to non-genuine caps, directly contributing to lower emission profiles and longer oil drain intervals.
Q: Is this assembly 100% brand new genuine Shacman part?
A: Yes, each Shacman WP10 Oil Filler Cover Assembly is sourced from original Shacman certified production lines with full warranty.
Q: Does the package include both Oil Filler Cap and O-ring?
A: Absolutely. The assembly comes complete with the Oil Filler Cap (1003834377) and the matched O-ring (1003839523).
Q: What is the expected service life?
A: Under normal operating conditions, the Shacman WP10 Oil Filler Cover Assembly lasts over 500,000 km or 5 years, whichever comes first.
Q: Can this assembly be used for Euro 5 / Euro 6 engines?
A: Yes, it is compatible with WP10 engines meeting Euro II to Euro V emission standards. For Euro VI variants, please consult our technical team.
Minimizing oil leaks not only keeps engine bays clean but also prevents catastrophic bearing failures due to low oil levels. The genuine Shacman WP10 Oil Filler Cover Assembly guarantees correct closure torque and sealing, giving maintenance teams confidence during inspections.
Counterfeit filler caps often use substandard O-rings that harden within months, leading to expensive engine degreasing and potential fire hazards. Investing in authentic Shacman WP10 Oil Filler Cover Assembly is the smart economic choice for any workshop.
Upgrade your engine’s protection with the Shacman WP10 Oil Filler Cover Assembly. Designed for maximum reliability, the combination of a durable Oil Filler Cap and high-resilience O-ring makes this assembly the industry benchmark for Shacman powertrains. Order the Shacman WP10 Oil Filler Cover Assembly today and experience zero-leak operation.
For wholesale inquiries, fleet contracts or technical support, our team provides immediate assistance. Always choose authentic Shacman WP10 Oil Filler Cover Assembly for your workshop inventory — because engine safety starts with small but critical components.