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HPK74P4-10X - Hughes Performance Extreme Duty / Tow Package - GM 4L60E - 4X2 Transmission Package - HD Gasoline Applications - (PWM Models) Includes 74-1E4 Transmission, GM57LXTM Tow Converter, Deep Aluminum Pan and 20,000 GVW Cooler

This product may require vehicle validation(s) for proper fitment. Please contact us to confirm correct vehicle fitment and usage.

Availability: Item has been discontinued and is no longer available
Shipping: FREE 48 State Shipping


The transmissions that are recommended for RV, towing, or other applications where severe duty applies.

Hughes transmissions feature specially designed components that eliminate the weaknesses found in stock transmissions, such as slipping or damaging overlap.

Our heavy duty towing transmission packages remain industry leaders. Our build-ups are regularly evaluated and improved to include the latest modifications and advances in technology. These units are stronger than ever and their service life is unbeatable. Every package starts with our best tow converter that multiplies more torque to pull easier than ever before!

For that diesel enthusiast who is serious about performance and has modified his engine output, we have designed a torque converter that will endure all the punishment that these motors can dish out. We start by manufacturing a steel billet clutch cover that will not distort behind 600 to 1200 pound feet of engine torque output.

The original lockup disc is replaced by our triple-disc setup that will also withstand all the increases of horsepower and torque and allow you trouble free driving, even under loaded conditions.

We use only the best internal components, including high performance friction components - the very same found in all full race applications. We admit that the components are high-end, but our primary goal is to build the best transmissions and components - not the least expensive. To finish off each transmission, we add a deep aluminum pan for more fluid capacity and an external oil cooler. Don't leave home without this amazing tow package!

Application List



  • HPK74P4-10X
  • HPK74P4-10X
  • Hughes Performance
  • Item has been discontinued and is no longer available
  • New


Shipping Information

  • Item Requires Shipping
  • 500.0 lbs.
  • FREE 48 State Shipping

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