6L45 Sprag Clutch 2007, used and ready to install. Fits the 6L45. Ships fast from the USA.
A Cadillac or BMW with the six-speed 6L45 that backs up fine but will not pull away in Drive is a classic case for checking the low one-way clutch. This is a used, original GM low sprag assembly, part number 24252466, with 24 elements, listed for BMW and Cadillac 6L45 transmissions from 2007 through 2015. It came from a running unit, has been cleaned, and is a sensible way to repair a 6L45 without paying for a new assembly. The heavier-duty 6L50 uses a 30-element sprag, sold separately as our 6L50 low sprag, so do not mix them up.
In first gear the 6L45 sends the reduced speed from its front planetary through the 1-2-3-4 clutch into the rear compound gearset. For that to make a gear ratio, the rear carrier has to be held against turning backward. In Drive the only thing holding it is this sprag. Its tilted elements jam between the races in one direction and roll free in the other.
The application chart Sonnax publishes for the 6L family lists just two holding members in Drive first: the 1-2-3-4 clutch and the low sprag. On the 1-2 shift the 2-6 clutch applies and the sprag overruns on its own, which is how GM got a smooth first-to-second without timing a clutch release. Select manual first or Reverse and the Low and Reverse clutch applies too. Because the clutch can stand in for the sprag in those ranges, a bad sprag usually leaves Reverse and L1 working.
Rule out the cheaper causes first. On the 2010 Cadillac CTS AWD 3.0L in particular, Transmission Digest describes a known failure where the spline between the transmission output shaft and the transfer case input shaft strips. That also gives Reverse but no forward on some cars. In their case study the spline was fine and the real fault was a disintegrated number 1 check ball in the valve body, which Gears Magazine also flags as a no-forward cause that looks like a low one-way clutch failure. If the output spline is intact, the check ball is the right size, line pressure is normal and it still will not move in Drive first, the sprag is next. Start with our 6L45 limp mode and diagnosis guide for the codes and data to check.
Listed fit is the 6L45 in BMW and Cadillac vehicles, 2007 to 2015, GM 24252466. BMW calls this transmission the GA6L45R. On GM vehicles, the service parts label shows RPO MYA for the 6L45. Because this is a used part, count the elements on your old sprag (24) and compare the race splines and outer diameter before you install it. Send us your year, model and VIN if you want it checked first. More parts for this transmission are on our 6L45 parts page.
| Fits | 6L45 2007 |
| Part type | Sprag Clutch |
| Condition | Used |
| 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.
No. This is the 24-element 6L45 sprag, GM 24252466. The 6L50 uses a 30-element sprag, which we sell as a new Borg Warner part.
It is listed for BMW and Cadillac 6L45 units from 2007 to 2015. BMW calls the transmission GA6L45R. Confirm the transmission on your car, or send us your VIN before you order.
Possibly, but check the output shaft to transfer case spline on AWD Cadillacs and the number 1 check ball in the valve body first. Both cause reverse but no forward, and both are cheaper to fix.
Hold one race and turn the other by hand. A good sprag locks solid in one direction and spins smoothly in the other. Look for chipped or tipped elements and a broken cage before you install it.
A new filter, any thrust washers you disturb, and the Low and Reverse clutch pack if it is worn. Clean the cooler lines so old debris does not reach the new parts.
