WESPC Intake Valve 3142H071 for Perkins Four-Cylinder Diesel Engines
| Brand Name |
WESPC |
| Place of Origin |
China |
| Part Number |
3142H071 |
| After-sales Service |
Video Technical Support, Online Support |
| Marketing Type |
Ordinary Product |
| Certificate |
ISO9001 |
| Warranty |
1 Year |
| Stock |
Yes |
Application
The 3142H071 intake valve is engineered for Perkins 1103 and 1104 series four-cylinder diesel engines, specifically covering build codes DC, DD, DE, DF, DG, DJ, DK, RE, RF, RG, RH, RJ, RR, RS, RT, XK, and XN. These powerplants are extensively deployed in JCB backhoe loaders (3CX, 4CX series) and telescopic handlers (400, 409 ZX series), Massey Ferguson agricultural tractors (4200, 4300, 6100, 6400, 7400 series), Doosan telescopic lifts (DT, DT 160, DT 210 models), Manitou forklifts, and FG Wilson generator sets producing 60-90 kVA continuous output. The valve also serves Cater C3.3, C4.4, and 3054 engine derivatives used in compact construction equipment and excavators. The intake valve operates in direct-injection diesel environments where intake air temperatures reach 150°C and cylinder pressures exceed 180 bar, providing critical sealing during the intake stroke to ensure optimal air-fuel mixture and combustion efficiency.
Technical Specifications
- Valve head diameter: 46.3 mm (1.825 inches)
- Valve stem diameter: 9.0 mm (0.354 inches)
- Overall length: 129.2 mm (5.083 inches)
- Sealing angle: 30° (ground and lapped sealing face)
- Engine displacement coverage: 3.3 L (1103 series) and 4.4 L (1104 series)
- Quantity per engine: 4 pieces (one per cylinder)
- Weight per unit: 0.13-0.15 kg (130-150 grams)
- Operating temperature rating: -40°C to +650°C continuous service
- Maximum valve lift: 12.0-13.0 mm (engine-specific camshaft profile dependent)
- Stem-to-guide clearance: 0.03-0.06 mm (standard specification)
- Material composition: Chrome-silicon-steel alloy
Material & Performance Features
Manufactured from premium-grade chrome-silicon-steel alloy with precision machining and advanced heat treatment processes, the 3142H071 intake valve delivers exceptional strength and wear resistance in severe-service diesel environments. The valve head material provides superior thermal conductivity and oxidation resistance at operating temperatures up to 650°C typical of turbocharged diesel applications. Precision grinding of the stem surface achieves dimensional tolerance of ±0.01 mm and surface finish Ra < 0.2 μm, ensuring consistent guide bushing lubrication and minimizing carbon buildup that can cause valve sticking. The 30° sealing face is precision-ground and lapped to achieve a surface finish Ra < 0.4 μm, ensuring optimal sealing against the intake valve seat insert and preventing charge dilution that reduces engine efficiency and increases emissions.
Interchange Part Numbers
Primary reference: Perkins 3142H071
Alternative numbering: 2255495, 225-5495
Massey Ferguson cross-reference: 4224847M1
AGCO specification: 3142H071
KMP Brand replacement: 3142H071-KMP (premium aftermarket with 18-month warranty)
