WESPC Valve Steam Seal 2418M506 For Perkins 1004 1006 404 804 403
1104
| Brand Name | WESPC |
| Place of Origin | China |
Part Number | 2418M506 |
| After-sales Service Provided | Video Technical Support, Online Support |
| Marketing Type | Ordinary Product |
| Certificate | ISO9001 |
| Warranty | 1 Year |
| Stock | Yes |
Application:
The 2418M506 seal is a single-piece Viton-rubber valve-stem seal
used on both inlet and exhaust valves of Perkins 1004-40, 1004-40T,
1006-60, 1006-60T and 1106 series engines—power units that trace
their lineage back to the 4.0-litre T4.236 and AT4.236 turbocharged
diesels. In the field you will find it pressed into the
cylinder-head counter-bore on Massey Ferguson 390, 398, 699 and
8200-series tractors, Landini Legend and Rex ranges, JCB 3CX/4CX
back-hoes, Manitou MLT telehandlers, FG Wilson P27-P55 generator
sets and a variety of compact construction machines. The seal snaps
over the 8 mm valve stem and seats against the guide boss,
preventing crank-case oil from being drawn into the combustion
chamber while still allowing the valve to rotate and self-clean.
Technical specifications:
Inside diameter 8.0 mm, outside collar 14.0 mm, overall height 12.0
mm, lip angle 15°, spring load 4.5 N ± 0.5 N. Material is FKM
(Viton A) fluorinated rubber rated −30 °C to +200 °C continuous,
with a stainless-steel garter spring that maintains 1.2 N radial
force after 1 000 h at 180 °C. Oil-side lip roughness Ra ≤ 0.2 µm,
air-side Ra ≤ 0.4 µm to guarantee < 0.5 g h⁻¹ oil consumption
per valve at rated speed.
Material & performance features:
The FKM compound resists swelling and hardening in 15W-40 CI-4 oil,
biodiesel vapour and EGR condensate; tensile strength ≥ 15 MPa,
elongation ≥ 200 %, Shore A 75 ± 5. The encapsulated stainless
spring eliminates rust migration, while the twin-beam lip profile
scrapes oil without starving the stem for lubrication.
Interchange part numbers:
PERKINS 2418M506, 996-956, 153-7024; KMP 2418M506; CTP 1537024.
