Genuine Mazda 6-Speed Gearbox Change Control Bush • P602-17-481B

Genuine Mazda P602-17-481B Six-Speed Gearbox Change Control Bush

Replacement Genuine Mazda gear-change control bush for Mazda MX-5 Mk3, Mk3.5 and Mk3.75 / NC models fitted with the six-speed manual transmission listed in the compatibility table.

The bush forms part of the internal manual-transmission change-control mechanism. It supports and locates the applicable selector component, helping transfer movement from the gear lever through the gearbox selector assembly accurately and consistently.

As the bush wears, clearance within the selector mechanism can increase. This may contribute to excessive selector movement, a less precise gear change, increased free play or a notchy and inconsistent shift feel.

The component is commonly inspected or replaced while the gearbox change-control assembly is dismantled during a transmission repair, selector-system overhaul or internal gearbox rebuild.

This listing supplies one Genuine Mazda change bush, which is the quantity shown at the applicable catalogue position.

• Part type: Gear-change control bush
• Mazda catalogue description: Bush, change
• Alternative descriptions: Selector bush / gearbox change bush / shift-control bush
• Primary use: Supports and locates the applicable gearbox selector component
• System: Manual transmission change-control mechanism
• Installation location: Internal six-speed gearbox selector assembly
• MX-5 application: Mk3, Mk3.5 and Mk3.75 / NC
• Primary MX-5 engine application: 2.0L LF-VE
• Transmission application: Six-speed manual only
• Not suitable for: Five-speed manual or automatic MX-5 NC transmissions
• Additional Mazda application: Applicable six-speed manual RX-8 transmissions
• Quantity at applicable catalogue position: One
• Quantity supplied: One change bush
• Brand: Genuine Mazda
• Part No.: P602-17-481B
• Also referenced as: P60217481B
• Replaces: P602-17-481A

Fitment advice: Confirm that the vehicle is fitted with the applicable Mazda six-speed manual gearbox. This component should not be selected solely from the vehicle model or engine size because five-speed manual and automatic transmissions use different selector arrangements.

Diagnostic advice: An imprecise or notchy gear change can also be caused by worn external gear-lever bushes, selector components, damaged synchromesh assemblies, incorrect gearbox oil, clutch drag or internal bearing wear. Diagnose the complete system before assuming this bush is the sole cause.

Inspection advice: When the change-control assembly is dismantled, inspect the adjoining selector lever, joint, spring, cap, frame and contact surfaces for scoring, deformation or excessive clearance. Replacing one bush will not correct wear elsewhere in the mechanism.

Other items to consider: During gearbox repair, consider purchasing the adjoining change-control bushes, selector joint, springs, seals, retaining clips, gearbox gaskets and the correct manual-transmission oil.

Useful tools / consumables: Vehicle lift or substantial axle stands, transmission jack, socket and spanner set, calibrated torque wrench, circlip pliers, non-damaging picks, clean assembly lubricant and the correct gearbox oil.

Difficulty guide: DIY Difficulty: Advanced. The bush is part of the transmission change-control mechanism and may require gearbox removal or significant transmission dismantling depending on the repair being undertaken.

Why Genuine Mazda? Genuine Mazda transmission bushes are manufactured to the intended dimensions, material specification and operating clearances for the original selector assembly. Using the correct OE component helps preserve accurate location and movement within the gearbox change-control system.

What’s in the box: One Genuine Mazda six-speed gearbox change-control bush, part number P602-17-481B. Selector levers, joints, springs, seals, gearbox oil and additional transmission components are not included unless specifically shown or stated separately.

Installation notes: Follow the appropriate Mazda workshop procedure for gearbox and selector-system dismantling. Keep the internal components clean, record their orientation and inspect all mating surfaces before reassembly. Lubricate the bush with the specified transmission assembly lubricant or gearbox oil, fit it squarely without damaging its working surfaces and tighten all adjoining components to the applicable Mazda specifications.