Yokomo B9-644SSA BD9 Main Gear Shaft Set Competition Part  [B9-644SSA]

Yokomo B9-644SSA Main Gear Shaft Set
Price:
£11.57
Brand:
Yokomo
Model:
B9-644SSA
GTIN:
0639342182572
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Spares / Hop-ups - Yokomo - MRTC-BD919S category
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Stabilise Your BD9 Drivetrain with Yokomo B9-644SSA

The Yokomo B9-644SSA Main Gear Shaft Set is manufactured to suit the BD9 platform and offers close tolerances to help maintain correct gear alignment. Its build quality aims to deliver dependable operation under race conditions.

Designed for MRTC-BD919 and S Variants

This B9-644SSA component from Yokomo fits MRTC-BD919 and MRTC-BD919S chassis arrangements and is made from materials chosen for durability. It is intended to lower play in the drivetrain and extend service intervals.

Practical Gains for Club Racers

Improved shaft stability from the B9-644SSA can lead to steadier acceleration and cleaner power transfer, which helps with setup consistency and driver confidence on varied surfaces.
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.

Does the B9-644SSA come with installation instructions?

Most kits include basic guidance, but follow your BD9 service manual for torque settings and final checks to ensure correct installation.

How do I check for correct gear mesh after fitting?

Fit the shaft, mount spur and pinion, then rotate the drivetrain by hand while inspecting tooth contact. Adjust shims or mesh until teeth engage smoothly without binding.

Is this an OEM replacement part?

The B9-644SSA is a Yokomo component intended to match BD9 gearbox specifications. Verify part numbers against your chassis documentation to confirm fitment.

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