SPEED 19XZ-B Compatible Piston Pin - O.S. Engine OS21956000  [OS21956000]

O.S. ENGINES PISTON PIN SPEED 19XZ-B
Price:
£4.23
Brand:
O.S. Engine
Model:
OS21956000
GTIN:
4531028148338
Condition:
Brand New
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Understanding piston pin installation and function

Marked O.S. Engine OS21956000, this piston pin is supplied as a replacement part suitable for SPEED 19XZ-B engine assemblies. It is intended to link the piston to the connecting rod and serve as a direct service item for maintenance and overhaul work.

Carry out installation during top-end servicing: remove the head and piston per the engine maker's instructions, assess the condition of the piston and rod bores, and use a precise arbor or light press to insert the pin. Avoid hammering to prevent damage, and check that circlip retainers or similar fasteners are fully engaged after installation.

To preserve performance and reduce wear, prioritise clean mating surfaces and correct retainer fit instead of modifying pin dimensions. Use light assembly lubricant at fitting and inspect operation through break-in to catch any early signs of bore or pin wear.

Which engine models can use this pin?

The product is intended for SPEED 19XZ-B as shown in the item designation. Always cross-check engine variant and measurements with the service documentation before fitting.

What should I inspect before fitting a new pin?

Check the piston and rod bores for roundness and scoring, verify the pin seats without binding, and confirm circlip seats are clean and secure to avoid movement in service.

How do I avoid premature wear after fitting?

Ensure correct lubrication at assembly, avoid over-tightening that could distort bores, and perform a careful break-in while monitoring for abnormal noise or play.

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