1677368 3.95 mm Valve Adjusting Shim for Volvo FH12
1300 05 040
Summary
This precision-ground 3.95 mm valve adjusting shim is designed for Volvo FH12 engines with the D12D configuration. It ensures accurate valve clearance within the engine's valve train, maintaining optimal performance for heavy commercial vehicle applications. Equivalent to OE Volvo 1677368.
| EAN Code | 8699031053592 |
|---|
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Compatible OEM Codes
-
VOLVO
- 1677368
Description
What does a valve adjusting shim do?
This precision-ground shim functions as a critical component within the engine's valve train, ensuring that valve clearance is maintained at the manufacturer's specified tolerance. By providing exact thickness between the rocker arm or cam follower and the valve, it allows for full seating of the valve during every cycle, which is vital for maintaining compression and engine timing.Vehicle and engine compatibility
This specific shim is designed to be used in Volvo FH12 trucks equipped with D12D engines. It serves as a high-strength component to withstand the continuous impact loading inherent in heavy-duty diesel engine operations. For exact fitment, always verify compatibility by cross-referencing the dimensions of the existing shim or the OE reference.Installation and maintenance
When performing maintenance, technicians should ensure the shim seat is clean and lightly lubricated before installation to prevent scoring. It is recommended to measure each valve individually rather than assuming uniform clearance across all cylinders. Always verify the final clearances after assembly to ensure the engine operates within technical specifications.Ensuring precise valve clearance
Maintaining correct valve clearance through precise shims helps prevent compression loss and premature wear of the valve seating face in heavy commercial vehicle engines.OE cross-reference
1300 05 040 (Valve Adjusting Shim Engine Valve) is the equivalent of the Volvo OE number. This part directly replaces Volvo OE number 1677368.Other OEMs
VOLVO
- 1677368
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?
A valve adjusting shim acts as a precision spacer that brings valve clearance back to the manufacturer's specified tolerance, ensuring the valve seats fully during each cycle.
Which vehicles are these shims compatible with?
These shims are designed for Volvo FH12 trucks featuring D12D engines, providing necessary precision for heavy commercial vehicle diesel systems.
How should I install a new valve adjusting shim?
The shim seat should be cleaned and lightly oiled before assembly to prevent scoring marks on initial start-up, and clearances should be re-measured after installation.
Why is precise thickness important for this part?
Correct thickness is critical to prevent compression loss; if a shim is incorrect or improperly machined, it can cause side loading or improper seating of the valves.
What are the OE reference numbers of this part?
1300 05 040 directly replaces Volvo OE number 1677368.