1698678 Volvo NH12 Compressor Connecting Rod

What does a compressor connecting rod do?

This compressor connecting rod serves as the essential link within the air brake compressor, joining the crankshaft to the piston. By converting the crankshaft's rotary motion into the piston's reciprocating compression stroke, it directly influences the air output capacity of the pneumatic system. This component is manufactured from heavy-duty grade materials to withstand high-pressure cycles.

Vehicle compatibility and fitment

This specific part is designed for Volvo NH12 models, including variants such as the NH 12/340, NH 12/420, NH 12/380, and NH 12/460. It is compatible with these specific heavy commercial vehicle engine configurations to maintain optimal pneumatic pressure.

Installation and maintenance guidance

When replacing this component, technicians should verify the crankshaft alignment and check for any signs of uneven wear on the bearing surfaces. Proper installation ensures that the piston movement remains synchronized with the crankshaft rotation, preventing internal air leakage or mechanical resistance during high-load operations.

Troubleshooting and selection

Maintaining regular inspections of the connecting rod and its assembly helps prevent sudden compressor failure. Ensuring correct fitment is vital for the continued reliability of the vehicle's braking system.

OE cross-reference

7300 850 003 (Compressor Connecting Rod) is the equivalent of the Volvo OE number. This part directly replaces Volvo OE number 1698678.