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17-19 GM 6.6L L5P Duramax WP Dev 850HP Allison Transmission

17-19 GM 6.6L L5P Duramax WP Dev 850HP Allison Transmission
New
17-19 GM 6.6L L5P Duramax WP Dev 850HP Allison Transmission

Available Options

$7,150.00

  • Part Number: WPD-850HP-Allison-17-19
  • Est. Ship Time: Contact to Confirm Availability
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Please note: A 5% cancellation fee will be charged for canceled WP Developments transmissions after purchase.
If lead time is a concern, please contact us BEFORE making your purchase to avoid a cancellation fee. 

WPD 850HP Series L5P Allison 1000 Features
For 2017-2019 GM 2500, GM 3500 Pickup trucks only

  • Billet C2 hub
  • Deep pan
  • New torrington bearings
  • Billet PTO oiling C3 mod
  • HD stack up in C3 clutch
  • New internal wiring harness
  • Tested Solenoids
  • New psi manifold
  • OEM reseal
  • triple disk torque converter 
  • Raybestos/alto clutch stack up
  • WPD pump 
  • WPD valve body calibrated

WP Developments transmissions proudly carry a 2 year parts warranty.
For further details on the warranty, please view the warranty page- Click here

Warranty Disclaimer
By purchasing this product, you acknowledge and agree that the transmission selected is appropriately rated for your vehicle’s current power level. Exceeding the advertised power rating of the transmission will void the warranty in its entirety. You accept full responsibility for any resulting product failure or damage due to overpowering the unit and accept full responsibility for any associated costs or consequences. Additionally, all TCM calibrations must be certified by WP-Developments to maintain warranty coverage.

WP Developments: WPD-850HP-Allison-17-19

 
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