6T45 Clutch Module 2015, new and ready to install. Fits the 6T45. Ships fast from the USA.
The 6T45 is the heavier-duty sibling of the 6T40, built for GM's larger front-drive cars and crossovers such as the 2.4L Equinox and Terrain. In that kind of vehicle the clutches see more load, and a high-mileage unit that has started to slip on the highway or flare on the 2-3 or 4-5 shift is usually telling you the frictions are worn. This listing is a Gen 3 friction clutch module, Exedy part number EFK425, for 6T45 units built from 2015 on. The same kit is listed for the Gen 3 6T40 and 6T50.
A friction module is the full set of lined plates for the transmission's clutch packs. Inside the 6T45 those plates sit between steel plates in five clutches, named for the gears they work in: 1-2-3-4, 2-6, 3-5-Reverse, 4-5-6 and Low/Reverse. Hydraulic pistons squeeze each pack to lock a planetary member, and two packs are always applied together to make a gear. The 6T45 shares its basic layout with the 6T40, so the clutch logic is the same, but it is built to handle more torque, which is why its frictions are sold for the 6T45 by name. When the lining is glazed or burnt, the packs need longer to lock, the TCM sees the slip on its speed sensors and adds pressure, and eventually it runs out of room to correct.
On a 6T45, not every harsh shift is a clutch problem. GM released a TCM calibration for a harsh 2-3 shift on 2011 Equinox, Terrain and Captiva 2.4L models, and a worn valve body bore or a weak solenoid can cause flares that new frictions will not cure. Check the fluid level hot at the check plug, look at its color and smell, and record which gears slip before you open the case. The 6T40 and 6T45 valve body symptoms guide covers the control faults to rule out, and the delayed engagement guide helps if the problem shows up mostly in Drive or Reverse engagement.
This module is listed for Gen 3 6T45 transmissions from 2015 onward. Earlier 6T45 units use Gen 1 or Gen 2 internals with different clutch counts, and GM's generations are not interchangeable. Read the eighth digit on the TEHCM label before you order: a 1, 2 or 3 means Gen 1 and a B, C or D means Gen 2, so neither of those is this kit. For a 2008-2011 era 6T45, see our 6T45 clutch module for 2008-2013. If the label is unreadable, send us the year and VIN and we will match it. If you are rebuilding a 6T40 instead, use the 6T40 listing for this module.
Soak each new friction in Dexron VI for at least 30 minutes. Measure the steels for flatness and look for blue heat marks; replace any that fail. The 6T45 return spring packs are under real load, so use a proper compressor such as the DT-47799 clutch piston spring compressor set rather than a homemade press. Replace the bonded pistons and all lip seals, inspect the 3-5-R wave plate for cracks at the tooth corners, and set each clutch's clearance before air-checking the packs. Worn frictions load the fluid with debris, so fit a new filter and pan gasket at the same time; our 6T40 and 6T45 filter and pan gasket kit is listed for these units, though you should match it to your pan. Flush the cooler and lines, refill with Dexron VI, set the level hot, clear adapts and complete a relearn drive.
| Fits | 6T45 2015 |
| Part type | Clutch Module |
| Condition | New |
| Brand | OEM |
| Ships | From the USA |
| Warranty | 1-year |
Doing this repair right usually means replacing these at the same time. Same transmission, ships together.
It is listed for Gen 3 6T45 units from 2015 on. Confirm your unit is a 6T45 and not a Gen 2 carryover by checking the TEHCM label, or send us the VIN.
Some kits are unit-specific because the 6T45 is built for more torque. This Gen 3 Exedy module is listed for the 6T40, 6T45 and 6T50 from 2015 on.
Bonded pistons, seals and gaskets from an overhaul kit, the filter, any warped or blued steels, and the 3-5-R wave plate if it shows cracks.
Not always. GM addressed a harsh 2-3 shift on some 2011 2.4L models with a TCM calibration, so check for software updates and valve body faults first.
Dexron VI only. Fill to the check plug and confirm the level hot with the engine running, since an overfilled 6T45 can overheat.
