WESPC Seal T400902 for Perkins 1500 Series and 1700 Diesel Engines
Product Overview
| Brand Name | WESPC |
| Place of Origin | China |
| Part Number | T400902 |
| After-sales Service | Video Technical Support, Online Support |
| Marketing Type | Ordinary Product |
| Certificate | ISO9001 |
| Warranty | 1 Year |
| Stock | Yes |
Application
The T400902 Seal is a precision-engineered cylinder liner oil seal specifically designed for 8.8-liter and 15.2-liter inline diesel engine platforms, compatible with 1500 series and 1700 series power units. This seal is extensively utilized across heavy-duty power generation equipment, industrial machinery, construction equipment, and marine propulsion systems.
The seal serves as the critical barrier between the cylinder liner and engine block, preventing lubricating oil from entering the combustion chamber while simultaneously preventing coolant leakage into the oil pan. It ensures proper engine lubrication, maintains combustion integrity, and prevents cross-contamination between oil and coolant systems. The seal is compatible with turbocharged and aftercooled diesel engines featuring electronic fuel injection systems, supporting reliable operation in high-demand stationary power, industrial processing, marine, and heavy equipment applications.
Technical Specifications
- Seal Type: Cylinder liner oil seal / Liner seal / O-ring seal
- Compatible Engines: 8.8-liter and 15.2-liter displacement diesel engines (1506 series, 1706 series, 1500 series, 1700 series)
- Seal Function: Prevents oil ingress into combustion chamber and coolant leakage into oil pan
- Material Grade: High-grade elastomeric compound (nitrile rubber NBR or fluorocarbon FKM/Viton)
- Material Hardness: Shore A 70-90 durometer for optimal compression and wear resistance
- Operating Temperature Range: -40°C to +150°C (continuous exposure to engine oil and coolant)
- Pressure Rating: Designed to withstand cylinder combustion pressures and cooling system pressures
- Cross-Section: Circular O-ring profile or specialized rectangular profile for liner sealing
- Inner Diameter: Precision-matched to cylinder liner outer diameter
- Outer Diameter: Precision-matched to engine block liner bore
- Quantity per Engine: 6 units (6-cylinder engines)
- Installation Location: Cylinder liner-to-engine block interface at lower liner flange
- Liner Compatibility: Designed for press-fit cylinder liners (T400895 series)
- Weight: 0.005-0.02 kg (0.011-0.044 lbs) per unit
Material & Performance Features
The seal is manufactured from high-grade nitrile rubber (NBR) or fluorocarbon (FKM/Viton) elastomeric compounds, providing exceptional resistance to engine oils, coolants, and combustion byproducts. The material formulation includes anti-aging additives and reinforcing fillers that ensure long-term dimensional stability and compression set resistance under cyclic thermal and mechanical loads.
The seal exhibits excellent chemical compatibility with modern engine lubricants including synthetic and semi-synthetic oils, as well as ethylene glycol-based coolants. The elastomeric construction maintains flexibility across the entire operating temperature range, ensuring effective sealing during cold starts and high-temperature operation.
The precision-molded cross-section provides optimal compression characteristics when installed between the cylinder liner flange and engine block counterbore. The seal design accommodates minor surface imperfections while maintaining positive sealing contact pressure. The material resists compression set, ensuring the seal maintains its original dimensions and sealing force over extended service intervals.
The robust construction withstands the mechanical stresses and thermal cycling encountered in diesel engines, ensuring reliable operation across diverse fuel qualities and operating conditions. The seal maintains chemical stability when exposed to oil additives, coolant inhibitors, and combustion acids, preventing premature degradation and leakage.
Interchange Part Numbers
T400902; 5114-0046-1 (Marapco reference); PER8516
