WESPC Valve Seat 3314A051 For Perkins 1004.4 1004-4T T4.236 AT4.236
Diesel Engines
| Brand Name | WESPC |
| Place of Origin | China |
Part Number | 3314A051 |
| After-sales Service Provided | Video Technical Support, Online Support |
| Marketing Type | Ordinary Product |
| Certificate | ISO9001 |
| Warranty | 1 Year |
| Stock | Yes |
Application:
The valve seat 3314A051 is engineered for use in the exhaust
section of Perkins 1004.4, 1004-4T, T4.236 and AT4.236 turbocharged
diesel engines (3.9 L), power units that are found in mid-range
agricultural tractors such as the Massey Ferguson 362/365/375/383
series, combine harvesters like the MF 30 and 31, industrial
sweepers, forklift trucks, generator sets from 40-70 kVA, and
irrigation pumps. The seat is also specified for the later
1006-60T, T6.601 and CCW6.601 six-cylinder derivatives when the
same cylinder-head architecture is carried over, making it a common
service item across farms, construction yards and rental-fleet
power packs worldwide.
Technical specifications:
The seat is a precision press-in ring, 38.10 mm outside diameter,
33.30 mm inside diameter and 8.90 mm overall height, machined to a
45° conical face that mates with the exhaust valve head. The
outside diameter is ground to a 0.05 mm interference fit to
guarantee positive retention in the aluminum cylinder-head insert,
while the 2.0 mm wide seat contact band ensures reliable sealing at
boost pressures up to 1.4 bar and exhaust gas temperatures of 720
°C.
Material & performance features:
The seat is manufactured from a low-alloy sintered steel
(Fe-3Cr-2Mo-1C) that is oil-quenched after sintering to reach a
core hardness of 92 HRB, then triple-tempered to relieve internal
stress. The working face is high-frequency induction-hardened to 52
HRC to a depth of 1.2 mm, giving a wear index better than 600 hours
in continuous 3000 rpm field tests. A manganese phosphate
conversion coating (2–4 µm) is applied to the outer diameter to
improve initial lubrication during press-fit and prevent
micro-welding under severe thermal cycling.
Interchange part numbers:
PERKINS 3314A051, 3314A052, 3314A053, 3314A054; MASSEY FERGUSON
3638721M91, 3638721M92; LANDINI 747602M91, 747602M92; JCB
331/43025, 331/43026; LEYLAND 5L4340; KMP 3314A051-4; ITM 1158145.
