Part Number Cross Reference

Need your engine OEM’s part number to order Genuine Jake Brake® parts? Use our Part Number Cross-Reference tool to find your OEM or Jacobs part number.

Jake Brake parts can be purchased through your engine OEM or local service center. Jacobs common components may be available through multiple engine OEMs or independent distributors. Use the Jacobs part number in the Cross-Reference tool to find out where these parts can be purchased.

Are you wondering which Jake Brake goes with a particular engine model? You can find that information in our OEM-specific Application Guides.

Narrow the results by searching for full or partial part numbers. You can also narrow results by selecting the engine manufacturers in the dropdown list.

Engine OEM OEM Part Number Jacobs Part Number Part Name Where to Purchase Edit
Cummins 3871285 003278, 3278, 00-003278 RECEPTACLE QUICK DISCONNECT
Cummins 3871286 003285, 3285, 00-003285 SUPPORT FAN BRACKET BRACE
Cummins 3871287 003306, 3306, 00-003306 NUT HEX #6-32
Cummins 3871288 003327, 3327, 00-003327 PISTON MASTER .843 DIA
Cummins 3871289 003328, 3328, 00-003328 SPRING MASTER PISTON
Cummins 3871290 003329, 3329, 00-003329 PISTON MASTER .625 DIA
Cummins 3871291 003402, 3402, 00-003402 POSITIONER VALVE SPRING
Cummins 3871292 003408, 3408, 00-003408 SPRING OUTER SLAVE PISTON
Cummins 3871293 003409, 3409, 00-003409 SPRING INNER SLAVE PISTON
Cummins 3871294 003410, 3410, 00-003410 SPRING CONTROL VALVE
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