1547978 Volvo FH12 D12C 2.55 mm Valve Adjusting Shim
1300 05 012
Summary
Precision 2.55 mm valve adjusting shim designed for Volvo FH12 engines with D12C specifications. This high-strength component ensures accurate valve clearance in heavy commercial vehicle diesel engines. Compatible with Volvo OE requirements. Equivalent to OE Volvo 1547978.
| EAN Code | 8699031053318 |
|---|
Ready to Order
Compatible OEM Codes
-
VOLVO
- 1547978
Description
What does a valve adjusting shim do?
This valve adjusting shim is a precision-ground component designed to bring valve clearance in heavy commercial vehicle diesel engines to the exact tolerance set by the manufacturer. It is fitted within the valvetrain assembly to ensure the valve seats fully on every cycle, preventing compression loss and protecting the valve seating face.Vehicle and engine compatibility
This specific shim is engineered for Volvo FH12 trucks featuring D12C engines. It is also suitable for other heavy commercial vehicles requiring precise clearance adjustments in high-pressure diesel environments. Proper selection of the shim grade is critical for maintaining engine timing and performance.Installation and maintenance guidance
For installation, ensure the shim seat is clean and lightly lubricated to prevent scoring during initial start-up. It is vital to measure each valve individually rather than assuming uniform clearance across all cylinders. Always verify the clearance after assembly and before final closure of the engine cover.Troubleshooting and selection
Failure to use the correct thickness can lead to rapid wear of contact surfaces or improper valve seating. For optimal service life, always check clearances at the manufacturer-recommended mileage intervals and replace shims that show signs of uneven wear or deformation.OE cross-reference
1300 05 012 (Valve Adjusting Shim Engine Valve) is the equivalent of the Volvo OE number. This part directly replaces Volvo OE number 1547978.Other OEMs
VOLVO
- 1547978
Related Products
Grouped Products
Used In
Compatible Vehicles
| Brand | Model | Model Type | Engine |
|---|---|---|---|
| RENAULT TRUCKS | Magnum | DXi12 | |
| VOLVO | |||
| VOLVO | FH12 | D12C | |
| VOLVO | FH12 | D12D | |
| VOLVO | FH16 | D16C | |
| VOLVO | FM10 | D10A | |
| VOLVO | FM12 | D12C | |
| VOLVO | FM12 | D12D | |
| VOLVO | NH12 | D12C | |
| VOLVO | VHD | D12 | |
| VOLVO | VNL | D12 |
FAQ
What is the function of a valve adjusting shim?
It acts as a precision spacer that adjusts the gap between the cam follower and the valve, ensuring correct clearance for optimal engine timing and sealing.
Which engines are these shims compatible with?
These shims are specifically designed for Volvo FH12 trucks equipped with D12C engines, following strict dimensional requirements.
How can I ensure I am using the correct thickness?
You should base your selection on the OE reference of the removed shim or the cylinder head, as dimensions can vary even within similar engine series.
What are the symptoms of an incorrect shim thickness?
Incorrect thickness can lead to compression loss, increased engine noise, or premature wear of the valve seating face due to improper seating.
What are the OE reference numbers of this part?
1300 05 012 directly replaces Volvo OE number 1547978.