Clutch Service Kits

1. Clutch Disc and Cover 2. Release Bearing 3. Input Shaft Repair Kit

Note: 125969 (ISO) and 125968 (SAE) are replaced by A-10004340 (ISO) and A-10004341 (SAE) effective March 2023.

*Clutch kit K-4573CLW is supplied directly from Eaton Cummins and only to be used on clutch claims when directed by an Eaton Cummins representative. Kit does not include Release Bearing, Input Shaft Repair Kit or Pilot Bearing.

Note: Release bearing kits K-4692W (A-10004340 - ISO) and K-4693W (A-100046341 - SAE) are supplied directly from Eaton Cummins. Use one release bearing based on OEM and engine when installing clutch kit K-4573CW. Refer to Input Shaft Repair Kit and Pilot Bearing section, order appropriate kit/part (customer pay) when installing clutch kit K-4573CLW.

K-4379 (ISO / Standard Dampener with 260mm Flywheel Bore Engines)

• PACCAR - Cummins Engines
• International Motors A26 Engines
• International Motors - Cummins Engines
• PACCAR MX Engines

  Note: K-4379 Obsoleted 01/16/2023. Use K-4488CL or K-4488CL-PAC.

K-4488CL / K-4488CL-PAC (ISO / Soft Rate Dampener with 260mm Flywheel Bore Engines)

• Can be used to replace K-4379
• PACCAR - Cummins Engines
• International Motors A26 Engines
• International Motors - Cummins Engines
• PACCAR MX Engines

K-4494CL (SAE / Soft Rate Dampener with 260mm Flywheel Bore Opening Engines)

• Freightliner - Cummins Engines
• Western Star - Cummins Engines
• Volvo - Cummins engine

K-4496CL (SAE / Soft Rate Dampener with 290mm Flywheel Bore Opening Engines)

• Freightliner - Detroit Diesel Engines
• Western Star - Detroit Diesel Engines

  Note: Covers all DD engines (DD13 / DD15 built October 1, 2019 to present).

K-4513CL (SAE / Soft Rate Dampener with 290mm Flywheel Bore Opening Engines)

• Freightliner - Detroit Diesel Engines
• Western Star - Detroit Diesel Engines

  Note: K-4513CL obsoleted 01/16/2023. Use K-4496CL.

K-4514CL / K-4514CL-PAC (ISO / PACCAR Only / Soft Rate Dampener with 290mm Flywheel Bore Opening Engines)

• PACCAR MX 11 / MX 13 Engines with 290mm Flywheel Bore Opening
• Cummins X15N (Natural Gas)

  Note: Only PACCAR MX 11 / MX 13 engines built after July 1, 2021 to present.

K-4512CL / K-4512CL-PAC (SAE / Soft Rate Dampener with 260mm Flywheel Bore Opening Engines)

• Cummins ISX 12N (Natural Gas)

  Note: K-4512CL-PAC obsoleted 01/16/2023. Use K-4512CL.

K-4676CL / K-4676CL-PAC (ISO HD Vocational and TX-12 Pro) (ISO / Low Torque Extreme Duty Dampener with 290mm Flywheel Bore Opening Engines)

• PACCAR MX 11 / MX 13 Engines with 290mm Flywheel Bore Opening
• Endurant HD Vocational / TX12 Pro Only

  Note: Endurant HD Vocational / TX12 Pro Series Only

K-4677CL - K-4677CL-PAC (SAE HD Vocational and Non-Vocational) (SAE / Low Torque Extreme Duty Dampener with 260mm Flywheel Bore Opening Engines)

• PX-9 PACCAR / L-9 Cummins Engines

Input Shaft Repair Kit

Note: Kit includes items: 1, 2 and 3. Pilot Bearings were removed effective 03/18/2024 and are purchased separately.

Input Shaft Repair Kit Part Number Identification

Use the diagram below to identify wear sleeve installed on your Input Shaft or table based on your OEM and Engine to determine Input Shaft Repair Kit.

K-4569

Note: Replaces K-4362 (obsoleted 03/18/2024).

• Freightliner - Cummins Engines
• Kenworth - Cummins Engines
• International Motors - A26 Engines
• International Motors - Cummins Engines
• Peterbilt - Cummins Engines
• Volvo - Cummins Engines
• Western Star - Cummins Engines
• PACCAR - MX Engines

K-4694

Note: Replaces K-4485 (obsoleted 03/18/2024).

• Freightliner - Detroit Diesel Engines
• Western Star - Detroit Diesel Engines

Pilot Bearings

Use the table below to identify the Pilot Bearing for your engine.

Input Shaft Kit Part Number Identification

Use the diagram below to identify the input shaft installed in the transmission and compare to vehicle OEM - Engine.

• Locate the part number on the end of the input shaft as shown in Diagram a. Compare input shaft part number and OEM - Engine to determine Kit Part Number in table below, primary identification.
• If part number is illegible - Measure the input shaft as shown in Diagram b. Compare input shaft measurement (X) and OEM Engine to determine Kit Part Number in table below, secondary identification.
  Notice

  For secondary identification, input shaft and cover must be fully assembled in Clutch Housing.
• OEM - Engine

*Hard lock bearing design

**Non-hard lock bearing design

Input Shaft Kits

K-4360 (ISO) - Superseded

Note: HD production Input Shaft Bearing 10004584 changed to hard lock bearing design. K-4360 superseded by K-4659 in NAFTA 06/03/2023.

Note: The Main Shaft End-Play procedure is required if the Input Shaft is replaced. One of three Main Shaft Selective Washers are required to adjust end-play, Part Numbers: 10000555, 10001759, 10001760.

K-4659 (ISO Hard Lock Bearing Design)

Note: The Main Shaft End-Play procedure is required if the Input Shaft is replaced. One of three Main Shaft Selective Washers are required to adjust end-play, Part Numbers: 10000555, 10001759, 10001760.

Note: Reference input shaft bearing installation procedure for bearing orientation when pressing in 10004584 input shaft bearing.

K-4361 (SAE) - Superseded

Note: HD production changed to 10004584 Input Shaft Bearing early July 2023. K-4361 superseded by K-4660 in NAFTA 06/03/2023.

Note: The Main Shaft End-Play procedure is required if the Input Shaft is replaced. One of three Main Shaft Selective Washers are required to adjust end-play, Part Numbers: 10000555, 10001759, 10001760.

K-4660 (SAE Hard Lock Bearing Design)

Note: The Main Shaft End-Play procedure is required if the Input Shaft is replaced. One of three Main Shaft Selective Washers are required to adjust end-play, Part Numbers: 10000555, 10001759, 10001760.

Note: Reference input shaft bearing installation procedure for bearing orientation when pressing in 10004584 input shaft bearing.

K-4363 (Detroit Only) - Superseded

Note: HD production changed to 10004584 Input Shaft Bearing early July 2023. K-4363 superseded by K-4661 in NAFTA 06/03/2023.

Note: The Main Shaft End-Play procedure is required if the Input Shaft is replaced. One of three Main Shaft Selective Washers are required to adjust end-play, Part Numbers: 10000555, 10001759, 10001760.

K-4661 (Detroit Only Hard Lock Bearing Design)

Note: The Main Shaft End-Play procedure is required if the Input Shaft is replaced. One of three Main Shaft Selective Washers are required to adjust end-play, Part Numbers: 10000555, 10001759, 10001760.

Note: Reference input shaft bearing installation procedure for bearing orientation when pressing in 10004584 input shaft bearing.

Transmission Service Unit, Reman or Complete, Part Number Identification

Use the diagram below to identify the Input Shaft installed in your transmission. Verify Input Shaft and OEM - Engine to determine the correct transmission service unit part number.

• Locate the part number on the end of the Input Shaft as shown in Diagram a. Compare input shaft part number to Service Unit Part Number in table below, primary identification.

  Note: The additional part number in the primary identification is the assembly part number used in the Bill of Material (BOM).

• If part number is illegible - Measure input shaft as shown in Diagram b. Compare input shaft measurement (X) to Service Unit Part Number in table below, secondary identification.
  Notice

  For secondary identification, input shaft and cover must be fully assembled in Clutch Housing.
• OEM - Engine

Note: Service Unit part numbers support both 11-Speed and 12-Speed transmissions.

Single PTO

Dual PTO

Note: Endurant HD Vocational and TX-12 Pro Transmission replacement units are all Dual PTO units shown below.