The Origins of Diesel Power
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What Are Adjustment Shims Used For?
Adjustment shims are precision-tolerance metal components used to accurately adjust the gap, height, or pressure distance between parts in engine and injector systems.
They play a crucial role especially in diesel injectors, where millimetric adjustments are required to ensure correct injection values and proper operation.
Many components inside the engine must operate in the correct position with micron-level precision.
Adjustment shims provide this precision, supporting system performance, stability, and long-term durability.
Main Functions of Adjustment Shims
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2-Pin Idle Adjustment Shim
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Adjustment Shim
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This product has multiple variants. The options may be chosen on the product page
Adjustment Shim 11.50 mm x 5.60 mm
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This product has multiple variants. The options may be chosen on the product page
Adjustment Shim 2.00 mm x 6.00 mm
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This product has multiple variants. The options may be chosen on the product page
Adjustment Shim 3.00 mm x 7.00 mm
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This product has multiple variants. The options may be chosen on the product page
Adjustment Shim 3.50 mm x 10.00 mm
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This product has multiple variants. The options may be chosen on the product page
Adjustment Shim 3.50 mm x 7.00 mm
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This product has multiple variants. The options may be chosen on the product page
Adjustment Shim 3.50 mm x 7.50 mm
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This product has multiple variants. The options may be chosen on the product page
Adjustment Shim 4.00 mm x 8.00 mm
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This product has multiple variants. The options may be chosen on the product page
Adjustment Shim 4.50 mm x 9.00 mm
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This product has multiple variants. The options may be chosen on the product page
Adjustment Shim 5.40 mm x 9.00 mm
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Adjustment Shim 5.80 mm x 11.40 mm
1. Precise Height Adjustment
Millimetric height adjustment is required for the needle, valve, and spring mechanism inside the injector to operate in the correct position.
Adjustment shims compensate for these height differences.
2. Balancing Injection Values
In diesel injectors, the injection quantity depends on needle height and pressure.
Adjustment shims stabilize the factory-specified injection values.
3. Tolerance Compensation
It eliminates tolerance differences that may occur due to manufacturing variations or wear over time.
This ensures proper component fit and maintains sealing integrity.
4. Vibration and Impact Management
Micro-gaps between metal components can increase vibration.
Adjustment shims eliminate these gaps, ensuring quieter and more stable operation.
Advantages of EKT Automotive Adjustment Shims
At EKT Automotive, we offer high-quality adjustment shims manufactured in various diameters, thicknesses, and tolerances:
±0.01 mm precision tolerance
Heat- and pressure-resistant metal structure
Full compliance with OEM standards
Wide range of thickness options
Easy installation for professional workshops
Our products are designed to deliver reliable performance in both OEM projects and aftermarket applications.
