Exedy OE 2008-2015 Mitsubishi Lancer L4 Clutch Kit

The Exedy MBK1009 is an original-equipment style clutch kit for the 2008-2015 Mitsubishi Lancer Evolution X GSR, the 2.0L turbo 4B11T car with the five-speed manual. Our listing title says Lancer L4 because that is how the catalog groups the Evo, but this is not a kit for the everyday Lancer sedan. It is the right buy when a stock or lightly modified Evo X has started to slip in fourth and fifth, judders when you pull away, or picks up at the very top of the pedal, and you want the factory feel back rather than a heavier stage clutch.

What the OE clutch kit does in an Evo X GSR

The GSR five-speed sends 4B11T torque through a single dry clutch. The pressure plate clamps a 240 mm (9.5 in) friction disc against the flywheel, and the release system on this transmission is a pull-style design, so the bearing draws the diaphragm fingers toward the gearbox to free the disc. As the disc lining wears thin, clamp load falls off and the clutch begins to slip on boost long before it slips off boost. Exedy builds its OE line to factory specifications, which means organic engagement, stock pedal effort and the torque capacity the car left the factory with. Retailers note that this kit is not intended for race use. If the car runs a bigger turbo or an aggressive tune, look at a performance kit instead, such as the Exedy Hyper Twin for the Evo X.

Symptoms a worn Evo X clutch shows

• Tach jumps while road speed stalls as boost builds in the top two gears
• Bite point has crept up near the top of the pedal stroke
• Shudder or chatter during a gentle launch, worse when the car is hot
• Burnt friction smell after a steep hill start or a few hard launches
• Grinding into gears, or reverse refusing to go in, because the clutch is not fully releasing
• A squeal or rumble that changes as the pedal goes down, usually the release bearing

How to confirm it is the clutch before you buy

Warm the car, roll along in fourth around 2,500 rpm and go to full throttle. If rpm rises faster than road speed, the disc is slipping. Check the clutch fluid level and look for leaks at the master and slave cylinders first, because a hydraulic fault can mimic a worn clutch by holding the pressure plate partly released. Oil from a weeping rear main seal on the disc also causes slip and chatter, and new parts will not survive it. Our slipping diagnosis guide walks through the road test, and the chatter on takeoff guide separates a glazed disc from engine mount and flywheel problems.

Fitment

MBK1009 is cataloged for the 2008-2015 Lancer Evolution X GSR with the five-speed manual. It does not fit the Evo X MR, which uses the six-speed twin-clutch SST gearbox, and it is not the kit for the non-turbo Lancer DE, ES or GTS. Exedy uses different part numbers for older Lancers and the Ralliart, so the year range alone is not enough. Confirm you have the GSR five-speed, compare the disc size and spline with the parts coming out, or send us your year and VIN and we will check it. The shipping weight is about 19.6 lb. For other Evo X parts, browse our clutch and rebuild kits.

Install notes

• The Evo X is all-wheel drive, so the transfer case and driveline work adds time to the job. Support the engine before pulling the crossmember and five-speed.
• Resurface or replace the flywheel. A worn or heat-checked surface is the most common reason a new disc chatters. If you are replacing it, the ACT 600550 Streetlite flywheel keeps street manners close to stock.
• Retailer listings differ on whether bearings are packed in the box, so have a pull-style release bearing and a pilot bearing on hand before the transmission comes out. A slide hammer such as the OTC 1172 pilot bearing puller makes the old pilot easy to remove.
• Center the disc with the alignment tool, snug the pressure plate bolts in a star pattern, then torque them to the factory value.
• Bleed the clutch hydraulics with fresh brake fluid of the type shown on the reservoir cap.
• Break the disc in with a few hundred miles of easy driving before any hard launches. Our clutch break-in guide covers the routine.

Comparing options? The Competition Clutch OE replacement kit is the other stock-torque choice we carry for the Evo X five-speed.

Does the Exedy MBK1009 fit a regular Lancer?

No. It is cataloged for the 2008-2015 Lancer Evolution X GSR with the five-speed manual. The non-turbo Lancer DE, ES and GTS, the Ralliart and the Evo X MR use different parts.

Will it hold more power than stock?

It is built to factory specifications and retailers note it is not intended for race use. A tuned car with more boost should step up to a performance clutch.

What should I replace along with the clutch?

Resurface or replace the flywheel and fit a new pull-style release bearing and pilot bearing. Check the rear main seal and clutch hydraulics while the transmission is out.

What size is the clutch disc?

Retailer specifications list a 240 mm (9.5 in) disc for MBK1009.

How do I know my clutch is slipping and not something else?

Do a fourth-gear full-throttle pull from about 2,500 rpm. If rpm climbs faster than speed, the disc is slipping. Rule out low clutch fluid, a leaking slave cylinder and oil on the disc first.

Does it need a break-in?

Yes. Drive gently for a few hundred miles with smooth engagements and no hard launches so the disc and flywheel faces bed in evenly.

• Transmission Slipping Diagnosis Guide
• Shift Flare vs Slip: What Is the Difference
• Automatic vs Manual Transmission Repair Cost