WESPC Valve Spring T417880 For Perkins 1004-4 1006-6 135TI 1106 Family Diesel Engines

WESPC Valve Spring T417880 For Perkins 1004-4 1006-6 135TI 1106 Family Diesel Engines

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.

Perkins Engine Bearings

car diesel engine parts

diesel engine internal parts

WESPC Valve Spring T417880 For Perkins 1004-4 1006-6 135TI 1106 Family Diesel Engines Images