PPE Stage 4R Transmission Upgrade Kit (with Converter)

Part# 12803451X


WARNING: Cancer and Reproductive Harm - www.P65Warnings.Ca.Gov

Stage 4R Transmission Kit with Converter

Fits 2001-2016 Allison 1000 Transmissions

The Stage4R transmission kit is our intermediate-level trans upgrade kit that’s built for drag racing, sled pulling, towing and daily-driving. This kit works well for a stock truck, but was engineered to handle a Duramax engine that's been equipped with multiple high-performance modifications: such as performance tuning, oversize injectors, and/or small nitrous kits. This kit includes PPE’s triple clutch converter, valve body recalibration kit (recalibration kit does not change shift points, only increases clutch holding power), converter flow valve and upgraded high-friction C1, C2, C3 and C4 clutches.


  • Billet cover, Billet stator, triple clutch converter
  • C1, C2, C3, and C4
  • Valve body recalibration kit, boost valve, pump shim and gaskets


  • Optional C5 Clutch Kit
  • The optional C5 clutch kit is built to handle heavy duty towing. The C5 clutches improve first gear, reverse and park.

DmaxStore Notes:

$200 refundable torque converter core charge applied to purchase.