Genuine Mazda 3rd / 4th Gear Synchronizer Ring – 6-Speed Manual • P611-17-26Z

Genuine Mazda P611-17-26Z 3rd / 4th Gear Synchronizer Ring – 6-Speed Manual

Replacement Genuine Mazda third- and fourth-gear synchronizer ring for Mazda MX-5 Mk3, Mk3.5 and Mk3.75 / NC 2.0L Sport models fitted with the six-speed manual transmission from 2005/2006 to 2015 listed in the compatibility table.

The synchronizer ring forms part of the internal 3rd/4th gear synchronizer assembly. During a gear change, it creates friction against the corresponding gear cone to bring the rotating gearbox components to a compatible speed before the synchronizer sleeve engages the selected gear.

This double-ring synchronizer arrangement helps provide controlled, quiet engagement of third and fourth gears. Correct friction-surface condition and dimensional clearance are essential for reliable shifting.

This listing supplies one Genuine Mazda synchronizer ring component. The quantity required for a transmission repair depends on the position being serviced and the condition of the associated gear and synchronizer assembly.

Replacement may be required where the original ring has worn friction surfaces, damaged teeth, excessive clearance, heat discolouration, cracking or scoring. Common symptoms can include gear crunching, notchy engagement, increased effort selecting third or fourth gear, or improved engagement when the driver shifts more slowly or double-declutches.

• Part type: Third- and fourth-gear synchronizer ring
• Mazda description: Double-ring synchronizer cone
• Primary use: Matches gearbox shaft and gear speeds before engagement
• System: Six-speed manual transmission
• Location: Internal 3rd/4th gear synchronizer assembly
• Vehicle application: Mazda MX-5 Mk3, Mk3.5 and Mk3.75 / NC
• Engine application: 2.0L LF-VE petrol
• Transmission application: Six-speed manual only
• Model application: Sport and equivalent factory six-speed variants
• Quantity supplied: One synchronizer ring component
• Brand: Genuine Mazda
• Part No.: P611-17-26Z
• Also referenced as: P6111726Z
• Associated gearbox area: Third- and fourth-gear synchronizer assembly
• Not suitable for: Five-speed manual or automatic transmissions

Fitment advice: This part is for the Mazda MX-5 NC six-speed manual gearbox. Confirm the transmission type and compare the original synchronizer component, ring construction and Mazda part number before ordering. Internal gearbox components should be selected by transmission assembly and production specification rather than engine size alone.

Other items to consider: When changing this part, you may also want to consider purchasing the associated third and fourth gears, synchronizer hub and sleeve, selector fork, engagement keys and springs, shaft bearings, circlips, locking nuts, oil seals and suitable manual-transmission oil.

Useful tools / consumables: Transmission press, bearing separator and pullers, circlip pliers, shaft-support fixtures, feeler gauges, dial indicator, micrometer or vernier measuring equipment, calibrated torque wrench, gearbox assembly lubricant and the specified transmission oil.

Difficulty guide: DIY Difficulty: Specialist. Replacement requires removal and dismantling of the six-speed transmission, pressing components from the gearbox shafts and accurately checking synchronizer, gear, bearing and shaft clearances during reassembly.

Why Genuine Mazda? Genuine Mazda synchronizer components are manufactured to the intended friction characteristics, cone angles, dimensions, tooth profile and internal gearbox specification. Using the correct OE component helps maintain compatibility with the original gears, synchronizer hub and sleeve and supports the intended shift quality.

What’s in the box: One Genuine Mazda third-/fourth-gear synchronizer ring component, part number P611-17-26Z. Gears, synchronizer hub, sleeve, keys, springs, bearings, retainers and gearbox oil are not included unless specifically shown or stated separately.

Installation notes: Dismantle the transmission in accordance with the applicable Mazda procedure and keep all shaft components in their original sequence and orientation. Inspect the mating gear cones, engagement teeth, synchronizer hub, sleeve, keys, springs, selector fork, shafts and bearings. Measure synchronizer clearances against the applicable specification and replace any associated component showing wear, scoring, pitting or heat damage. Renew single-use retainers and locking components, then refill the completed gearbox with the specified grade and quantity of transmission oil.