Core Technology & Material Advantages
The Perkins valve cover T417478 is engineered for harsh environments, constructed from aircraft-grade aluminum alloy with anodized surface treatment. This creates a dense protective layer against oil corrosion, high-temperature oxidation, and external environmental degradation. Its internal multi-layer sealing system includes:
Cross-shaped seal strip: Precisely matched with the cylinder head's T-shaped groove for dual-layer sealing, preventing oil-gas leakage.
Vibration-resistant design: Reinforced edges and ribbed structure enhance rigidity, reducing sealing failure caused by engine vibrations.
Precise Fit & Easy Installation
Manufactured to OEM specifications, this valve cover perfectly fits Perkins C4.4 excavator engines and multiple 400 series models (e.g., 403D-11, 404D-22). Installation requires no modifications to equipment interfaces—simply replace the original part and torque the bolts to standard specifications, minimizing downtime.
Performance Assurance & Applications
Efficient heat dissipation: Aluminum alloy's high thermal conductivity rapidly dissipates heat, preventing seal aging due to overheating.
Extended lifespan: By preventing oil leaks and impurity ingress, it reduces wear on valve mechanisms, extending engine overhaul intervals.
Versatile use: Ideal for diesel-powered equipment in construction sites, mining, and agriculture, especially in high-dust or humid environments.
Quality Commitment & Compliance
All products are ISO 9001-certified and undergo rigorous testing (pressure, airtightness, salt spray) to ensure stability between -40°C and 150°C. We guarantee non-infringing design and offer a 12-month warranty, providing reliable power solutions for global customers.
We are a supplier of various engine assemblies and engine accessories in China, with a wide range of brands and types, and a huge warehouse storage and professional after-sales maintenance team. Both original and subsidiary factories can provide it, supplied globally.
Ningbo Qiuning Trading Co., Ltd. Service Supply and Sales Center
Our company provides more engine assemblies and accessories of different brands and models
If you are interested, please add my contact information directly:
WeChat/WhatsApp：+86 15888032469
E-mail： allen@perkins-rx.com
Remarks: The model or serial number processing is faster and the price is more favorable
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