WESPC Intake Valve 3142H111 For Perkins 1103D-33T 1103D-33TA Engine

WESPC Intake Valve 3142H111 For Perkins 1103D-33T 1103D-33TA Engine

Application:

3142H111 is the inlet valve for 3-cylinder Perkins 1103D-33T, 1103D-33TA and 4-cylinder 1104D-44 / 1104D-44T diesels (3.3–4.4 L) that power JCB 3CX compact back-hoes, 45 kVA “Vista A” generators, MF 1700-series tractors and mini-excavators. It is designed to maintain volumetric efficiency >92 % at 2 800 min⁻¹ while meeting EU Stage IIIA / EPA Tier 4-final smoke limits.

Technical specifications:

Overall length 114 mm, head diameter 38 mm, stem diameter 9 mm, seat angle 30 °, margin thickness 2.2 mm, stem tip induction-hardened to 52 HRC. The valve is forged from 21-4N austenitic stainless steel, solution-treated at 1050 °C and age-hardened to 28 HRC at the head centre for creep resistance at 800 °C.

Material & performance features:

The 21-4N alloy contains 9 % Mn, 4 % Cr, 3 % Ni and 0.45 % C, providing continuous hot strength to 850 °C and resistance to lead/sulphur corrosion when low-grade fuels are used. Chrome plating reduces stem wear groove depth to <0.02 mm after 6 000 h, while the roll-burnished fillet delays thermal-fatigue cracking by 30 %.

Interchange part numbers:

PERKINS 3142H111, 3142H101, 3142A171, KMP 3142H111, FPS V3142H111, MAXIFORCE 3142H111, HY-CAPACITY HCP3142H111, FAI V3142H111, AJUSA 8103142H111, GLYCO V-Per 1103/1104, MAHLE IN-3142H111, AE 3142H111, CLEVITE V-3142H111, TOPLINE 3142H111, VMC 3142H111, MARINE D’USTRIE 3142H111, KINGSLAND 3142H111, AIC 3142H111, WDPART 3142H111.

Perkins Engine Bearings

car diesel engine parts

diesel engine internal parts

WESPC Intake Valve 3142H111 For Perkins 1103D-33T 1103D-33TA Engine Images