1547974 Volvo FH12 D12C Valve Adjusting Shim
1300 05 008
Summary
Precision 2.35 mm valve adjusting shim designed for Volvo FH12 engines with D12C specifications. This high-strength component ensures accurate valve clearance and long-term durability in heavy commercial vehicle diesel engines. Equivalent to OE Volvo 1547974.
| EAN Code | 8699031053271 |
|---|
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Compatible OEM Codes
-
VOLVO
- 1547974
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 between the rocker arm, valve bridge, or cam follower and the valve, adding measured thickness into the chain between the cam profile and the valve so that the valve seats fully on every cycle.Compatible vehicles and engines
This specific part is compatible with Volvo FH12 trucks equipped with D12C engines. For optimal performance, it is essential to verify that the shim thickness matches the requirements of the specific engine family, as dimensions are critical for maintaining proper combustion pressure and preventing valve seating damage.Installation and maintenance
When performing engine maintenance, technicians should measure each valve individually to ensure precise clearance. It is recommended to clean the shim seat thoroughly and apply a light layer of oil before assembly to prevent scoring marks during initial start-up. Always verify clearances after installation to ensure they remain within the specified limits.Troubleshooting and selection
Maintaining correct valve clearance helps prevent compression loss and protects the cylinder head components from premature wear. Consult your authorized distributor for more information on compatibility.OE cross-reference
1300 05 008 (Valve Adjusting Shim Engine Valve) is the equivalent of the Volvo OE number. This part directly replaces Volvo OE number 1547974.Other OEMs
VOLVO
- 1547974
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 is a precision spacer that maintains exact valve clearance in heavy commercial vehicle diesel engines, ensuring the valves seat fully during every cycle.
Which engines are these shims compatible with?
These shims are designed for Volvo FH12 models featuring D12C engines. Always verify dimensions against OE specifications to ensure correct fitment.
Why should I measure valves individually during service?
Each valve may require a different thickness grade due to wear patterns; measuring them individually ensures the entire cylinder head operates within specification.
How can I tell if a shim is worn out?
If valve clearance drifts out of spec or if you experience compression loss, it may indicate that the shim has deformed or shifted under cam loading.
What are the OE reference numbers of this part?
1300 05 008 directly replaces Volvo OE number 1547974.