WESPC Valve Spring T417880 For Perkins 1004-4 1006-6 135TI 1106
Family Diesel Engines
| Brand Name | WESPC |
| Place of Origin | China |
Part Number | T417880 |
| After-sales Service Provided | Video Technical Support, Online Support |
| Marketing Type | Ordinary Product |
| Certificate | ISO9001 |
| Warranty | 1 Year |
| Stock | Yes |
Application:
The T417880 is a single outer valve spring fitted to Perkins
1004-4, 1006-6, 135TI and 1106 family diesel engines. It is found
in the cylinder heads of JCB 3CX/4CX back-hoe loaders, Claas Lexion
combines, Terex TA6 dumpers, Manitou MLT tele-handlers and FG
Wilson P110-P165 generator sets where it maintains correct valve
seating under sustained high boost and EGR conditions.
Technical specifications:
Free length 68,0 mm, installed length 45,5 mm, outer diameter 32
mm, wire diameter 4,2 mm. The spring delivers 210 N seat load at
45,5 mm and 520 N open load at 32 mm lift, giving a rate of 18
N/mm. Solid height is 28 mm with a safety margin of 0,5 mm to coil
bind. The part is validated for 2 million cycles at 2 800 rpm and
400 °C valve temperature.
Material & performance features:
The wire is chrome-silicon alloy steel (SAE 9254) shot-peened to
0,20 mmA intensity and stress-relieved at 280 °C for 30 min to
achieve 50–54 HRC surface hardness. A blue-oxide finish provides 96
h salt-spray protection per ASTM B117. The spring is preset to
eliminate length relaxation during the first 50 h of operation,
guaranteeing <1 % load loss over the 12 000 h engine overhaul
interval.
Interchange part numbers:
Perkins T417880, 31745122; JCB 3174P405; Massey Ferguson 740467M1;
Landini 02/101968; reference also 61-0283, VPA2006.
