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
CAT 143-2533 039025, 39025, 00-039025 CONTROL VALVE ASSY
Cummins 3871200 001003, 1003, 00-001003 CROSSHEAD EXH VALVE SOLID STEM
Cummins 3871201 001012, 1012, 00-001012 SPRING C/V INNER
Cummins 3871202 001015, 1015, 00-001015 SCREW ROCKER ADJUST 5/8-18
Cummins 3871203 001017, 1017, 00-001017 PISTON MASTER .875 DIA
Cummins 3871204 001021, 1021, 00-001021 BALL 7/32 DIA GRADE 25
Cummins 3871205 001022, 1022, 00-001022 SPRING SLAVE PISTON
Cummins 3871206 001023, 1023, 00-001023 RING RETAINING
Cummins 3871207 001026, 1026, 00-001026 NUT HEX JAM 3/8-24
Cummins 3871208 001030, 1030, 00-001030 WASHER PLAIN
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