Yokomo B9-501GAA BD9 Aluminium Drive Cup - Performance Touring Upgrade  [B9-501GAA]

Yokomo B9-501GAA Aluminum drive cup for BD9 Gear diff
Price:
AUD$17.26
Brand:
Yokomo
Model:
B9-501GAA
GTIN:
0639342204656
Condition:
Brand New
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Precision Anodised Drive Cup for BD9

The Yokomo B9-501GAA aluminium drive cup is a precision component crafted for the BD9 gear differential. Its lightweight aluminium build and hard anodised finish aim to lower rotational mass and reduce surface wear. The design supports a resin protector on the universal shaft side for compatibility with popular setups. By cutting rotating weight, the cup lessens gyroscopic forces and can help the car react more freely in direction changes.

Compatibility and Efficiency

Compatible with Yokomo models such as MRTC-BD919, MRTC-BD10, and MSR-BDFWD, this aluminium cup lightens the drivetrain versus standard steel items. The result is improved drive efficiency and potentially sharper corner exits, making it a useful part for touring car enthusiasts focused on handling refinement.
Remark :
Due to limited stock availability, please notice that some Yokomo items may have to order from the factory and the ready time is around 4-6 weeks. Customer purchases the item is assumed to accept the waiting time which allows us to order directly from the manufacturer if the item is out of our warehouse.

What tools do I need to fit this drive cup?

Basic diff service tools plus a small hex driver set are usually enough. Make sure the diff is clean and bearings are checked during the swap.

Does the aluminium cup affect rotational balance?

It reduces rotating mass which can change balance slightly; most users find the tradeoff benefits transient response without requiring balancing.

Is the part suitable for club racing use?

Yes, the aluminium cup is appropriate for club and regional racing where lighter rotating parts can offer handling advantages.

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