Competition Clutch Stage 4 1620 Series Clutch Kit • 10063-1620

Competition Clutch 10063-1620 Stage 4 1620 Series Clutch Kit

Performance replacement Competition Clutch kit for Mazda MX-5 MK3 / NC 2.0L models with the 6-speed manual transmission listed in the compatibility table.

The Competition Clutch Stage 4 1620 Series is designed for higher-output and competition-focused MX-5 applications requiring substantially greater clutch holding capacity. Its six-puck sprung ceramic friction disc provides strong, positive engagement and is matched with an uprated performance pressure plate for demanding road, track and motorsport use.

The clutch assembly is fitted between the engine and manual gearbox and transfers engine torque through to the transmission. One clutch kit is required per vehicle.

This kit is particularly suited to modified, high-horsepower and competition vehicles where the original clutch or a lower-stage performance clutch no longer provides sufficient torque capacity. The ceramic puck design gives a noticeably more direct engagement than a conventional full-face road clutch.

• Part type: Stage 4 performance clutch kit
• Series: Competition Clutch 1620 Series
• Clutch disc: Six-puck high-torque sprung disc
• Friction material: Ceramic
• Disc diameter: Approx. 8.5 in / 216 mm
• Disc style: 6-paddle / 6-puck
• Hub style: Sprung
• Input spline quantity: 23
• Primary use: High-performance road, track and competition applications
• Torque capacity: Up to 250% increase over standard, application dependent
• Location: Between engine and 6-speed manual transmission
• Quantity per vehicle: 1 kit
• Quantity supplied: 1 complete clutch kit
• Brand: Competition Clutch
• Part No.: 10063-1620
• Flywheel included: No
• Designed as an aftermarket performance replacement for the applications listed in the compatibility table

Fitment advice: Part number 10063-1620 is specifically intended for the Mazda MX-5 NC 2.0L with the 6-speed manual transmission. It should not be selected for a 5-speed car solely on engine size, as Competition Clutch uses a different clutch kit for the 5-speed application. For imported, modified or previously repaired cars, matching the part number or component style on the part being replaced is recommended.

Other items to consider: When replacing the clutch, consider inspecting or replacing the flywheel at the same time. Competition Clutch lightweight and ultra-lightweight steel flywheels are available for the NC application. It is also worth inspecting the clutch hydraulics, rear crankshaft oil seal and gearbox input area while the transmission is removed.

Useful tools / consumables: Clutch alignment tool, transmission jack, torque wrench, brake/clutch cleaner and appropriate high-temperature grease for specified clutch release mechanism contact points.

Difficulty guide: DIY Difficulty: Advanced. Installation requires removal of the gearbox, correct clutch alignment and accurate tightening of the flywheel and pressure plate components.

Why Competition Clutch? Competition Clutch is a trusted choice for performance-focused MX-5 owners who want stronger, more consistent clutch performance without sacrificing everyday usability. With options ranging from uprated road clutches through to more aggressive track-focused setups, Competition Clutch products are designed to deliver increased torque capacity, positive engagement and dependable performance.

What’s in the box: Competition Clutch performance pressure plate, six-puck sprung ceramic clutch disc, release bearing where applicable, pilot bearing / bushing where applicable and clutch alignment tool. Flywheel is not included.

Installation notes: Inspect the flywheel friction surface before installation and replace or professionally prepare it where required. Correctly centre the clutch disc before refitting the gearbox and follow the specified tightening sequence and torque figures. Competition Clutch recommends approximately 300 miles of bedding-in before full-load use. The six-puck ceramic friction disc has a significantly more positive engagement characteristic than a conventional road clutch, which is normal for this type of performance setup.