Genuine Mazda 6-Speed Gear Change Control Case Bush – MX-5 Mk3 / NC • P601-17-481

Genuine Mazda P601-17-481 Gear Change Control Case Bush

Replacement Genuine Mazda front change-control case 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 fits within the manual transmission gear-change control mechanism at the front of the gearbox case.

It helps support and correctly locate the selector assembly while allowing the controlled movement required when the driver changes gear.

Wear, distortion or deterioration of the original bushes may contribute to excessive movement, vibration, looseness or reduced precision within the gear-change mechanism.

Mazda specifies three of these bushes per applicable transmission. This listing supplies one individual bush.

• Part type: Gear-change control case bush
• Mazda catalogue description: Bush, change control case – front
• Alternative descriptions: Gear selector bush / shift-control bush / transmission selector housing bush
• Mazda diagram position: 17503
• Primary function: Supports and locates the manual transmission change-control mechanism
• System: Six-speed manual transmission change-control system
• Fitting position: Front section of the gearbox change-control case
• Primary vehicle application: Mazda MX-5 Mk3, Mk3.5 and Mk3.75 / NC
• Additional vehicle application: Applicable Mazda RX-8 six-speed manual models
• Transmission application: Six-speed manual only
• Five-speed manual application: No
• Automatic transmission application: No
• Quantity required per transmission: Three
• Quantity supplied: One individual bush
• Brand: Genuine Mazda
• Part No.: P601-17-481
• Also referenced as: P60117481

Typical reasons for replacement:

• Excessive movement within the gear selector mechanism
• Loose or imprecise gear-change feel
• Vibration or rattling around the change-control housing
• Bush worn, split, compressed or distorted
• Gear-change control frame being overhauled
• Six-speed manual transmission being rebuilt
• Original bushes damaged during dismantling
• Unknown bush condition or service history

Fitment advice: This component is used within the six-speed manual transmission change-control system. It is not allocated to MX-5 NC models fitted with the five-speed manual or automatic gearbox.

Quantity advice: Mazda specifies three bushes per applicable transmission. Order three individual units when replacing the complete set.

Related-bush advice: The gearbox change-control system contains several different bushes and selector components. P601-17-481 should not be confused with P602-17-481B or similarly numbered bushes fitted at other points in the mechanism.

Inspection advice: Inspect all three bushes, the change-control frame, selector rods, pivot points and mounting hardware while the assembly is dismantled. Uneven wear may indicate excessive movement or damage elsewhere in the mechanism.

Selector advice: A poor gear-change can also be caused by worn selector components, incorrect gearbox oil, clutch-release problems, damaged synchronisers or internal transmission wear. Diagnose the complete system where symptoms remain after bush replacement.

Lubrication advice: Apply only the lubricant specified by the applicable Mazda workshop procedure. Unsuitable grease may attack the bush material or attract contamination.

Gearbox-oil advice: Access may involve disturbing transmission components or draining gearbox oil. Refill with lubricant of the correct specification and confirm the correct level before driving.

Other items to consider: Consider inspecting or replacing the remaining change-control bushes, selector frame, retaining clips, seals and gearbox oil according to their condition.

Useful tools / consumables: Socket and spanner set, torque wrench, suitable bush-removal and installation tools, circlip pliers where required, clean assembly lubricant and the specified manual-transmission oil.

Difficulty guide: DIY Difficulty: Advanced. Replacement requires access to the gearbox change-control assembly and may involve substantial transmission or underbody dismantling.

Why Genuine Mazda? Genuine Mazda change-control bushes are manufactured to the intended dimensions, fit and movement characteristics of the original six-speed transmission selector assembly. Using the correct OE component helps retain proper alignment and gear-change operation.

What’s in the box: One Genuine Mazda front gear-change control case bush, part number P601-17-481. Three bushes are required for a complete replacement. Selector frame, additional bushes, clips, seals, lubricant and mounting hardware are not included unless specifically shown or stated separately.

Installation notes: Safely raise and support the vehicle and follow the applicable Mazda six-speed transmission change-control procedure. Record the orientation of the selector components before dismantling. Remove the worn bush without damaging the surrounding housing, clean and inspect the mounting location, then install the replacement in the correct orientation. Tighten all disturbed fasteners to specification and confirm smooth selection of every gear before road testing.