Replacement Lower Bulkhead Compatible with TRF421X - Tamiya 3451583 (42391)  [3451583]

Price:
£0.00
Brand:
Tamiya
Model:
3451583
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Compatibility, fit and reference checks

This Tamiya replacement lower bulkhead serves as an RC-scale spare intended for the TRF421X homologation range where the original reference 42391 applies. It functions as a structural element to position lower suspension mounts and retain drivetrain parts within the chassis. The wording is factual and workshop-oriented rather than promotional.

When replacing a bulkhead on a TRF421X platform, verify the 42391 part reference and inspect mounting bosses and clearances prior to final assembly. Ensuring correct fit preserves chassis geometry and helps maintain consistent handling during setup work.

Original Name

Lower Bulkhead: 42391 TRF421X

The part is listed against the TRF421X with reference 42391. Other models may use different mounting patterns; always compare the part reference and physical mounting points before assuming cross-compatibility.
Remove the existing bulkhead and check the stamped or printed reference, then compare the mating surfaces and screw positions to ensure a like-for-like replacement before installation.
If the replacement aligns correctly, drivetrain clearances should remain unchanged; however, check driveshaft engagement and gearbox alignment after fitting to confirm proper operation.
Inspect suspension mounts, fasteners and nearby components for correct seating and secure torque. Perform a short test run to verify there are no unusual noises or handling issues before full use.

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