6T45 Pump 2008-2011, used and ready to install. Fits the 6T45. Ships fast from the USA.
For a first-generation 6T45 or 6T40 out of a 2008-2011 Malibu, Equinox, Terrain, LaCrosse, Regal or Saturn Aura, this is a used GM pump body with its gears. It suits a rebuilder whose original pump body is scored, cracked or worn at the gear pocket, and who wants an original-casting Gen 1 replacement for the low price of a body rather than a full assembly.
The 6T45 is the heavier-duty version of the 6T40 and shares its pump layout. On Gen 1, a gear-type pump turned by the torque converter feeds the pressure regulator valve, which sets line pressure for the clutch-to-clutch shifting and the converter circuit. Gen 1 also has fluid pressure switches on the control solenoid valve that report back to the TCM, so pressure trouble on these years can show up as switch codes as well as shift complaints. GM dropped those switches with Gen 2 in the 2012 model year.
On a Gen 1 unit, first rule out the cheaper failures that mimic low pressure. GEARS documents pressure switch rivet failures on Gen 1 units through 2012, and Transmission Digest traced a 2011 Cruze neutral drop on the 1-2 shift to a damaged filter plate in the pressure switch 2 circuit. Our 6T40 shift solenoid symptoms guide explains those circuits, and 6T40 delayed engagement causes covers the fluid level and pressure checks. If line pressure is low in every range and the body is worn on teardown, the pump is the problem.
The listing covers Gen 1 6T40 and 6T45 units from 2008 to 2011 behind engines of 2.0L and larger, which it lists as 2.0L, 2.4L, 3.0L and 3.6L. The listing reference is 118916G; compare it with the casting on your old body. The 1.4L and 1.8L Cruze and Sonic are not in that range, so check before ordering for those. If your transmission is a 2012-up Gen 2 unit, you need the Gen 2 6T45 pump assembly instead. Send us the year and VIN if you are unsure.
| Fits | 6T45 2008-2011 |
| Part type | Pump |
| Condition | Used |
| Brand | GM |
| Ships | From the USA |
| Warranty | 1-year |
Doing this repair right usually means replacing these at the same time. Same transmission, ships together.
No. It is a used Gen 1 pump body with gears. Move your valve train, cover and hardware over from the old pump, and use new seals.
The listing is for 2008-2011 Gen 1 units behind 2.0L and larger engines. The Cruze used 1.4L and 1.8L engines, so send us your VIN before ordering.
Most 2012 and all 2013 units are Gen 2, which uses the 2012-up pump. GM's bulletin lists a few 2012 models that stayed Gen 1, including the 1.8L Cruze and Sonic and the 3.0L Captiva Sport.
Gen 1 units have pressure switches, so codes such as P0842, P0872, P0877 or P0989 can appear. Check the switches and filter plate before replacing the pump.
DEXRON VI. Fill, run through the ranges, and set the level hot at 85-95 C at the level set plug.
