Aftermarket 6L80 and 6L90 torque converter housing (bellhousing) for 2006-up GM V8 units; carries the pump and bolts the transmission to the engine.
A cracked bolt boss, a stripped thread or a pump pocket chewed up by a converter that came loose can scrap the front of a 6L80 that is otherwise worth rebuilding. This is a replacement torque converter housing (bellhousing) for the GM 6L80 and 6L90 six-speed behind V8 engines, 2006 and up, replacing GM part number 24248031 (manufacturer reference 829-043). It suits rebuilders and DIYers with a 5.3L, 6.0L or 6.2L Silverado, Sierra, Tahoe, Yukon or Escalade unit on the bench and a damaged front casting.
On the 6L80 the converter housing is more than a cover. It bolts the transmission to the back of the engine block, encloses the torque converter, and carries the front pump. The pump is a vane type driven by the converter hub, and it bolts into the housing, so the machined pocket and bolt holes in this casting locate the pump relative to the converter. If that pocket is scored or out of shape, pump output suffers and every circuit downstream feels it: line pressure, converter clutch apply, cooler flow and lube.
Clean the casting and look before you order. Many front leaks are just the converter seal or the pump seals, and many whines are the pump itself. A dye check and a close look under a light tell you whether fluid is coming through a crack. With the pump out, inspect the pocket for scoring and the threads for damage. Our 6L80 pump failure guide covers how to tell a worn pump from a pocket or seal ring problem, and the 6L80 common problems guide lists the other faults that cause low line pressure.
This housing is listed for 6L80 and 6L90 V8 applications 2006 and newer, including Silverado, Sierra, Tahoe, Yukon and Escalade with the 5.3L, 6.0L and 6.2L. Confirm your current housing carries casting 24248031 before ordering. The smaller 6L45 and 6L50 use a different case, and some 6L80 applications such as the Corvette mount the transmission differently, so do not assume a match without the number. If the casting is unreadable, send us your year, engine and VIN. You can find the rest of the front-end parts in our 6L80 parts collection.
If the pump that came out is scored or noisy, replace it now with a 6L80 pump. A housing swap is usually part of a full overhaul, so a 6L80 master rebuild kit covers the gaskets, seals and frictions in one order.
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Doing this repair right usually means replacing these at the same time. Same transmission, ships together.
It is listed for 6L80 and 6L90 V8 applications from 2006 up that use GM casting 24248031. Check the number on your old housing. The 6L45 and 6L50 use a different case.
No. This is the bare converter housing. You transfer your pump into it or install a new pump.
No. It is a direct replacement that bolts up with no machining or modification.
The front seal, pump seals and sealing rings at minimum. If the pump pocket in the old housing was damaged, inspect or replace the pump as well.
Loose or broken flexplate and converter bolts, a converter that was not fully seated, or improper torque on the bolts. Correct the cause before installing the new housing.
Dexron VI ATF. Check the level hot using the factory check procedure after the rebuild.
