Cylinder head bolt for Perkins 403D-15 to 404D-22 and the related Shibaura N843 / N844 and Caterpillar C1.5 to C2.2 engines (tightening torque 101 Nm). Not suitable for the small blocks 402D-05, 403D-07, 403D-11 and 404D-15. Sold individually, a 4-cylinder requires 14 bolts (11 long of 91 mm and 3 short of 72 mm, measured under the head). Always replace when changing the head gasket.
This component plays an essential role in the cold start process by precisely controlling the glow plugs, ensuring optimal combustion at low temperatures.
Voltage: 12 Volt DC
Connections: 5 pins
Function: Automatic regulation of glow plug preheating