Serpent 903809 28-Tooth Aluminium Oneway Differential Pulley 9XX  [SER903809]

Serpent SER903809 Oneway Differential Pulley 28T Aluminium 9XX
Price:
AUD$73.86
Brand:
Serpent
Model:
SER903809
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Track-Ready Driveline Upgrade for 9XX

The Serpent 903809 aluminium 28T oneway differential pulley offers a strong yet lightweight replacement for stock components on 9XX models. Precision machining helps ensure consistent engagement and reliable service life.

Engineered for Consistent Power Delivery

With its 28-tooth geometry the pulley spreads load across the geartrain, reducing hotspots and smoothing throttle response. This makes it useful for tuning balance and improving overall drivetrain longevity.

Specifications

  • Material: Aluminium
  • Tooth Count: 28T
  • Compatibility: 9XX Series

A solid choice for racers and hobbyists wanting a dependable, low-weight pulley to refine driveline performance.

Is this pulley compatible with aftermarket diffs?

It is designed around Serpent 9XX fittings; some aftermarket diff housings will accept it but you should verify shaft and bore dimensions before fitting.

Should I change grease or oil when installing?

When replacing drivetrain parts it is a good time to check and refresh diff oil and bearings so the new pulley operates under optimal conditions.

Any setup tips for initial runs?

After fitting, run the car at moderate pace to seat the pulley, then recheck set screws and drivetrain alignment before pushing for lap times.

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