This is the Bosch 0432133877, a new nozzle and holder assembly, not a rebuild, for the first-generation Dodge 5.9L Cummins 12-valve with the factory intercooler. That engine arrived partway through the 1991 model year, so catalogs list this injector for 1991.5 to 1993 trucks (some print 1990 to 1993). It has the 7 mm nozzle tip and the Bosch KDAL59P9 holder. It crosses to Cummins 3918965, Cummins exchange number 3802246RX, Mopar R4638651 and Ford BF5X-9E527-C, and catalogs tie it to CPL 1351 and CPL 1579 on the six-cylinder and CPL 1260 on the four-cylinder B engine. Opening pressure is 245 to 259 bar. It is sold outright, with no core to return.

Do not mix it up with the injectors for the earlier non-intercooled engine. Those trucks are listed under Bosch 0432133888, the 9 mm tip injector, or under Bosch 0432133874 where the head takes 7 mm injectors. The 1994 to 1998 12-valve trucks with the inline pump take different injectors again (0432133859, 0432133860 and 0432133844). Black smoke, a rough idle, hard starting, fuel knock or fuel in the oil on a high-mile first-generation truck usually means worn nozzles. Replace them as a set of six so the cylinders stay even.

Specifications

Fits / Applications

• 1991.5 to 1993 Dodge D250, D350, W250 and W350 with the 5.9L Cummins 12-valve and factory intercooler
• Cummins 6BT 5.9L, CPL 1351 and CPL 1579
• Cummins four-cylinder B 3.9L, CPL 1260. Confirm by CPL before ordering
• Non-intercooled engines are listed under Bosch 0432133888 (9 mm tip) or Bosch 0432133874 (7 mm tip)

Clean the injector bores and fit new sealing washers of the right thickness, since washer thickness sets nozzle protrusion. Torque the hold-downs evenly and bleed the lines before start-up.

Part Numbers & Cross Reference

Bosch 0432133877  ·  Cummins 3918965  ·  Cummins exchange 3802246RX  ·  Mopar R4638651  ·  Ford BF5X-9E527-C

Cross-reference numbers can change with engine serial, build year and emissions tier, so treat this list as a starting point. Send us your engine serial number and we will confirm the exact match against your build before anything ships. That check is free and takes a few minutes.

Frequently Asked Questions

Will the 0432133877 fit my 1989 to 1991 Dodge without an intercooler?

Catalogs list it for the engine with the factory intercooler. Non-intercooled trucks are listed under Bosch 0432133888, the 9 mm tip injector, or under Bosch 0432133874 where the head takes 7 mm injectors. Call 530-668-0818 with the number on your old injector.

What numbers does the 0432133877 cross to?

Cummins 3918965, Cummins exchange number 3802246RX, Mopar R4638651 and Ford BF5X-9E527-C. If your old injector carries a different number, call 530-668-0818 and we will check it.

Is this injector new, and is there a core?

It is a new Bosch nozzle and holder assembly, not a rebuild. It is sold outright, so there is no core to send back.

Does it fit a Cummins 4BT?

It is listed for the four-cylinder B engine at CPL 1260. Four-cylinder engines ran many ratings, so send us the CPL from the data plate before you order.

Related Parts

• 1988-1991 Dodge 5.9L Cummins 12-Valve Non-Intercooled 9 mm Fuel Injector | Bosch 0432133888 New
• 1994-1995 Dodge Ram 5.9L Cummins 12-Valve Automatic Fuel Injector (160 hp) | Bosch 0432133859 New
• 1996-1998 Dodge Ram 5.9L Cummins 12-Valve Manual Trans Fuel Injector (215 hp) | Bosch 0432133844 New
• 1993-2002 Dodge Ram 5.9L Cummins 12-Valve & 24-Valve VP44 Oil Cooler | Alliant Power AP63467 New
• Bosch VE Rotary Diesel Injection Pump Rebuild Service

Why Buy From Valley Fuel Injection

We are a diesel fuel-injection and turbocharger shop in Woodland, CA, rebuilding pumps, injectors and turbos on our own benches since 1993, not a drop-ship storefront. When you call, you talk to the people who test these units. We verify fitment against your engine serial, VIN or build date before anything ships, so the right part arrives the first time.