4L60E Pump 2004-2006, remanufactured and ready to install. Fits the 4L60E. Ships fast from the USA.
A 2004, 2005 or 2006 Chevy Silverado 1500, GMC Sierra 1500, Tahoe, Yukon, Suburban, Avalanche or Express that hesitates going into drive, slips in more than one gear, or makes a whine that tracks engine speed is a strong candidate for a worn front pump. This remanufactured GM 4L60E pump covers the 2004-2006 window as a complete assembly, so you are swapping in a pump that has already been rebuilt and checked instead of trying to save a scored body and a tired slide. It carries a 1-year warranty.
The 4L60E makes all of its hydraulic pressure with a variable-displacement vane pump that GM service information lists as a 13-vane design. The converter hub drives the rotor, the rotor turns inside a slide that swings on a pivot pin, and the pressure regulator valve in the pump cover moves the slide so output matches what the transmission is asking for. The pump also carries the stator shaft and the circuits that charge the converter and apply its clutch, so it controls converter behavior as much as clutch apply.
These three model years matter because they are the changeover era. Per Wayne Colonna's 4L60-E history in PTEN, GM began phasing an input speed sensor into the pump during 2005: a single-spring TCC valve arrived first, then a shorter boost valve and sleeve to make room for the sensor harness, then a revised pump casting with a modified stator shaft and sleeve. The full rollout landed in model year 2006, and some 2006 applications without the sensor use a plug bolted into the sensor hole instead.
Install a mechanical gauge on the line pressure port and compare idle and loaded readings in drive and reverse. If pressure is low everywhere, the pump elements are the likely leak. If it only drops in reverse or under heavy throttle, look at the regulator and boost valve first. Transmission Digest has documented that commanded pressure on a scan tool can look correct while actual pressure is not, so trust the gauge. Our 4L60E pump rotor and bushing wear guide covers the rotor, slide, regulator bore and stator bushing, and 4L60E common problems and fixes helps rule out failures that only look like pump trouble.
This assembly is listed for 2004-2006 4L60E transmissions in GM rear-drive and 4x4 applications, mainly the GMT800 trucks and SUVs. Because the input speed sensor was a running change inside this span, the pump that came out of your transmission is the reference. Check whether it has a sensor boss or plugged sensor hole, compare the stator shaft and cover casting, and make sure your input shaft matches the pump, since a mismatch can cost converter charge pressure or damage clutches quickly. If you are unsure, send us your year and VIN before ordering. A single-year option is the 2006 4L60E pump, and the rest of the lineup is in the 4L60E parts collection.
| Fits | 4L60E 2004-2006 |
| Part type | Pump |
| Condition | Remanufactured |
| 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.
It depends on build date. GM phased the sensor and its pump casting changes in during 2005 and completed the rollout in model year 2006. Compare your old pump to this one, or send us your year and VIN and we will check it.
It is listed for 2004-2006 4L60E applications, which includes the 2004 Silverado 1500 with the 4L60E. Match the stator shaft, cover casting and input shaft against your old pump before installing.
Yes. Converter charge and apply oil passes through the pump and stator support, so a worn regulator bore or stator bushing can lower apply pressure and set P0741 or P1870.
Use Dexron VI. Put some fluid in the converter before installation and fill the case before the first start so the new pump primes.
At minimum a front seal and pump-to-case seals, plus a converter inspection. If low pressure burned the 3-4 clutch, a rebuild kit is the right move while the unit is apart.
