Adding fluid capacity to your Allison transmission helps keep it cool, and the Merchant Automotive Allison 1000 Deep Pan Kit makes it easy. It fits 2001-2019 Chevy Silverado and GMC Sierra 2500HD and 3500HD trucks with the 6.6L Duramax diesel and the Allison 1000 transmission, as well as 2001-2007 8.1L gas trucks equipped with the Allison 1000. The kit adds approximately three quarts of fluid to the system with a larger genuine Allison deep transmission pan, a deep sump internal filter, a genuine Allison spin-on filter and a Merchant Automotive deep filter lock. Transmission fluid is not included. We recommend TranSynd 668 Full Synthetic Transmission Fluid.
Features
- Adds approximately three quarts of fluid capacity
- Helps keep the transmission cooler
- All-in-one kit: deep pan, both filters and filter lock
- Includes genuine Allison parts and the Merchant Automotive deep filter lock
- No modification needed
What's Included
- (1) Genuine Allison stamped steel deep sump transmission pan
- (1) Deep internal filter
- (1) Allison 1000 external spin-on filter
- (1) Merchant Automotive Allison 1000 deep filter lock
Before You Order
- Pan gasket: this kit does not include a transmission pan gasket. Order a new Allison 1000 Transmission Pan Gasket to install with the deep pan.
- Fluid: transmission fluid is not included. We recommend TranSynd 668 Full Synthetic Transmission Fluid, or see the Allison 1000 Deep Pan Kit with TranSynd for the same kit with 3 gallons included.
Installation Tips
- Install the deep internal filter with the included filter lock to hold it in place.
- Install the pan with a new pan gasket.
- Replace the external spin-on filter at the same time.
- Refill with the correct transmission fluid, then check the fluid level with the engine running and the transmission at operating temperature.
Related Parts
- Allison 1000 Transmission Pan Gasket
- Allison 1000 Deep Pan Kit, 3 Gal TranSynd
- TranSynd 668 Full Synthetic Transmission Fluid, 1 Gallon
- Allison Filter Kit, Deep Pan
- Allison Transmission Drain Plug with Seal
Frequently Asked Questions
How much fluid capacity does the deep pan add?
Approximately three quarts.
Is transmission fluid included?
No. We recommend TranSynd 668 Full Synthetic Transmission Fluid. For the kit with 3 gallons of TranSynd 668 included, see the Allison 1000 Deep Pan Kit with TranSynd.
Is a pan gasket included?
No. Order a new Allison 1000 Transmission Pan Gasket separately.
Do I need to modify anything to install it?
No. The deep pan kit installs with no modification needed.
Does it fit 8.1L gas trucks?
Yes. It fits 2001-2007 8.1L gas trucks equipped with the Allison 1000 transmission.
For warranty information or to submit a claim, see our Warranty Form.