Automatic Transmission | 2017-2019 GM 6.6 Duramax L5P

Allison has been supporting the Duramax equipped GM's since their infancy stage with the release of the first 2001 model. Over the years, the Allison has naturally progressed with the added power and ... read more

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BD Deep Sump Transmission Pan 01-19 6.6L GM Duramax with Allison 1000 1061650 BD-1061650 30.00

BD-Power 1061650

BD Deep Sump Transmission Pan 01-19 6.6L GM Duramax with Allison 1000 1061650 $ 408.95 2050-01-01

Diesel Power Products carries the BD Deep Sump Transmission Pan for 01-19 6.6L GM Duramax with Allison 1000 1061600 Schaeffer's All-Trans Supreme Transmission Fluid SL-0204SAT-Main 0.00

Schaeffer's Lubricants 0204SAT-SINGLE

Schaeffer's All-Trans Supreme Transmission Fluid $ 20.99 2050-01-01

Supreme Automatic Transmission Fluid starts with the latest innovative technology in base stocks and additives. BD Xtruded Double Stacked Transmission Oil Cooler BD-1300601-DS-Main 0.00

BD-Power 1300601-DS

BD Xtruded Double Stacked Transmission Oil Cooler $ 687.95 2050-01-01

Keep transmission heat under control with a BD Xtruded Double Stacked Transmission Cooler Mishimoto Heavy Duty Transmission Cooler with Electric Fan - Universal MISH-MMOC-F 6.00

Mishimoto MMOC-F

Mishimoto Heavy Duty Transmission Cooler with Electric Fan - Universal $ 172.95 2050-01-01

Save your transmission from heat with the Mishimoto Heavy Duty Transmission Cooler with Electric Fan. PPE Heavy Duty Deep Aluminum Transmission Pan 01-19 Duramax PPE-128051000-main 0.00

PPE (Pacific Performance Eng.) 128051000

PPE Heavy Duty Deep Aluminum Transmission Pan 01-19 Duramax $ 332.99 2050-01-01

Keep your Allison transmission running cool with this simple to install PPE Transmission Pan. PPE Standard Profile Aluminum Transmission Pan 01-19 6.6L GM Duramax PPE-128052000-main 0.00

PPE (Pacific Performance Eng.) 128052000

PPE Standard Profile Aluminum Transmission Pan 01-19 6.6L GM Duramax $ 242.99 2050-01-01

Keep the Allison transmission behind your Duramax running cool with this simple to install PPE Transmission Pan. Merchant Automotive 10357 Transmission Rear Housing Support 11-19 GM Duramax MA-10357 10.00

Merchant Automotive 10357

Merchant Automotive 10357 Transmission Rear Housing Support 11-19 GM Duramax $ 149.63 2050-01-01

Prevent transmission case cracks in your LML Duramax with this inexpensive, easy to install upgrade from Merchant! BD 1030607 Universal Transmission Cooler Electric Fan Assembly 80 Watt 10 Inch 800 CFM BD-1030607 2.00

BD-Power 1030607

BD 1030607 Universal Transmission Cooler Electric Fan Assembly 80 Watt 10 Inch 800 CFM $ 80.95 2050-01-01

Do you need to replace an existing transmission cooler fan, or building your own cooler setup? Merchant Automotive 10518 Allison 1000 Pump Bushing Installer and Removal Tool 01-19 6.6L GM Duramax MA-10518 2.00

Merchant Automotive 10518

Merchant Automotive 10518 Allison 1000 Pump Bushing Installer and Removal Tool 01-19 6.6L GM Duramax $ 124.72 2050-01-01

If you're in need of replacing the pump bushing in your Allison 1000, you need this tool, simple as that. BD Billet Steel Flex Plate 01-19 GM Duramax BD-1041260 15.00

BD-Power 1041260

BD Billet Steel Flex Plate 01-19 GM Duramax $ 444.95 2050-01-01

BD offers up their 29.3 SFI rated Billet Steel FleX-Plate for the Allison backed Duramax! Unlike other manufacturers, BD is reusing the stock flywheel assembly to reduce costs and unnecessary part changes. XDP XD345 EPC Solenoid Fooler Plug 11-19 6.6L LML/L5P GM Duramax XDP-XD345 1.00

XDP XD345

XDP XD345 EPC Solenoid Fooler Plug 11-19 6.6L LML/L5P GM Duramax $ 58.95 2050-01-01

Increase the line pressure in your LML or L5P Duramanx with this simply EPC solenoid fooler from XDP to enhance shifting and reliability of the transmission. Merchant Automotive 10690 Deep Filter Lock 01-18 6.6L GM Duramax MA-10690 2.00

Merchant Automotive 10690

Merchant Automotive 10690 Deep Filter Lock 01-18 6.6L GM Duramax $ 29.72 2050-01-01

The Merchant Automotive Deep Filter Lock is designed to be used with Allison brand deep pans. This Filter lock will keep your deep filter in place eliminating accicental fall and or reducing cavitation due to lack of seal at the filter.

Description

Allison has been supporting the Duramax equipped GM's since their infancy stage with the release of the first 2001 model. Over the years, the Allison has naturally progressed with the added power and features that the Duramax has produced. Beginning with the 2017 model year, the L5P engine was completely upgraded, now producing a whopping 445 horsepower, so it was evident that the transmission would need some finesse to support this newfound power. Fortunately, the upgrades list is short. For the most part, the only major change to the Allison from its predecessor is the torque converter.

However, as with ALL transmissions, they have their breaking point. We have found that prevention can be one of the key successors for a long lasting transmission, which is why we highly recommend adding a quality deep sump transmission pan and Schaeffer's brand transmission fluid to your Allison, no matter how you use it. And for those that are seeking higher horsepower or have accumulated some miles and are in need of heavier duty internals, we carry upgrades ranging from ATS, BD, and AFE torque converters to full blown billet transmissions that can handle ANYTHING you want to throw at them.

As always, if you need assistance in determining the correct parts for you, give us a call or send an e-mail to [email protected] and we would be happy to help.

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