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1000/2000/2400, 2006-Later, 1000/2000/2400, 2006-Later Performance Converter, 1000/2000/2400, Early, 1000/2000/2400, Early Performance Converter

Damperless Multi-Plate Converter Clutch Kit
Part No. AL-RK-3

View Instructions

When diesel trucks are modified for racing or performance street use, OE clutch plates slip and fail to hold. Upgrading to an aftermarket multi-plate converter is the only solution.

Sonnax heavy duty, damperless multi-plate converter clutch kit AL-RK-3 is available for Allison 1000/2000/2400 converters. The Sonnax kit pairs the salvaged OE fluid coupling parts (impeller, stator and turbine) with new heavy duty front cover, clutch plates, piston and turbine hub to increase overall converter capacity. Clear instructions, minimal setup and easy assembly make these foolproof upgrades. All-new kit components eliminate the rework and limitations associated with salvaged parts.

  • Forged chromoly damperless piston features heat-treated splines and resists bending under extreme lockup pressure
  • Increased oil flow improves cooling and lubrication of clutch plates
  • Three high-thermal, non-segmented and high-torque capacity friction elements deliver solid holding power

Additional parts are required for installation of AL-RK-3:
For 2005-earlier units, bearing spacer AL-WS-3 must be added to the stator. Impeller hub AL-90-3G should be installed to update to AL-N-1 bearing used with AL-WA-2 bearing adapter.
For 2006 and 2007 units, the OE stator cap must be replaced with AL-WA-3.
For 2008-later units, measure the combined height of the OE stator cap and bearing race.
2008-Later units with a combined height of .482” will require replacing the OE stator cap and bearing with AL-WA-3 and AL-N-2.
2008-Later units with a combined height of .513” will require replacing the OE stator cap and bearing with AL-WA-4 and AL-N-2.

  • Turbine Hub
  • Seal PTFE
  • Energizer Ring
  • Clutch Plate with Internal Splines
  • Clutch Plate with External Splines
  • Thrust Washer
  • Front Cover
  • Damperless Piston
  • Turbine Hub Rivets (12)
  • Dampered: No
  • Lockup: Multi-Plate
  • Unit Size: 13.5
  • Core: Allison 1000/2000/2400
  • Clutch Material: HTE
  • Turbine Hub Input Spline Count: 25
  • Existing Customers: Contact your sales representative.
  • New Customers: Fill out the form and a sales representative will contact you.
  • Al rk 3

Sonnax Performance Converter Kits

Engineered to Deliver Builds that Last

Designed from the ground up to outperform OE and other aftermarket components, Sonnax has you covered with a full line of performance converter kits for gas and diesel vehicles. Offering the widest variety of options in the aftermarket, these innovative kits deliver customized performance and value.

  • Small/Large Diameter
  • Single-Plate/Multi-Plate/Non-Lockup
  • Dampered/Damperless


Choose the right kit for your rebuild!