Red Piston Spring for SU carburetor AUC4387

SU
AUC4387
9506332446185
    Delivery time: In stock and ready to ship
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AUC4387
Factory-Original SU piston spring.

This is the "Red" version with a load at length of 4.5 oz. @ 2.635 in.

AUC4387 Red Piston Spring for SU carburetor

It is recognizable by the red paint on one of the ends (see photo).

These springs generate a resistance which balances the venturi size with the correct air flow and mixture.
Consequently, this spring is considered an important "tuning part" so choose yours wisely.

This product is priced, and sold, as a single unit.
Required quantity per carburetor: 1

This is an original SU spring, Made in the UK!

This is SU part number: AUC4387 / AUC 4387

AUC4387 Red Piston Spring for SU carburetor

AUC4387 Red Piston Spring for SU carburetor

AUC4387
Factory-Original SU piston spring.

This is the "Red" version with a load at length of 4.5 oz. @ 2.635 in.

It is recognizable by the red paint on one of the ends (see photo).

These springs generate a resistance which balances the venturi size with the correct air flow and mixture.
Consequently, this spring is considered an important "tuning part" so choose yours wisely.

This product is priced, and sold, as a single unit.
Required quantity per carburetor: 1

This is an original SU spring, Made in the UK!

This is SU part number: AUC4387 / AUC 4387


AUC4387 Red Piston Spring for SU carburetor
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