This is the Bosch 0432191352, a new mechanical fuel injector for the Cummins C Series 8.3L six-cylinder. Catalogs tie it to the 450 hp engines built to CPL 8089. It is a complete nozzle and holder assembly with a 5-hole nozzle, set and ready to fit, not a rebuild. It replaces Cummins 4078400, 4025299, 3897205 and 3802851, and it opens at 260 to 274 bar. It is sold outright, with no core to send back.

A worn mechanical injector shows up as hard starting, white or black smoke, a rough idle, fuel knock or a loss of power. Low opening pressure and a dribbling nozzle are the usual causes. Replace the sealing washer under the nozzle when you fit a new injector, and it is good practice to do the full set so the cylinders stay balanced. The 8.3L ran several injectors that look alike and open at different pressures, so match the Cummins number or the CPL before you order. Bosch 0432191738 (Cummins 3919602) is another 8.3L injector: it opens at 205 to 219 bar and is a different part.

Specifications

Fits / Applications

• Cummins C Series 8.3L engines, six-cylinder, that call for injector 4078400 or 4025299
• Engines built to CPL 8089, the 450 hp rating (the CPL is on the engine data plate)
• Engines whose parts book lists Cummins 3897205 or 3802851
• Six injectors per engine
• Not the same as Bosch 0432191738 (Cummins 3919602)

Clean the injector bore before fitting, use a new sealing washer under the nozzle, and torque the hold-down to the engine maker’s figure. Cap the lines while they are open, bleed the high-pressure lines after fitting, and change the fuel filter.

Part Numbers & Cross Reference

Bosch 0432191352  ·  Cummins 4078400  ·  Cummins 4025299  ·  Cummins 3897205  ·  Cummins 3802851

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

What Cummins numbers does the Bosch 0432191352 replace?

Cummins 4078400, 4025299, 3897205 and 3802851, all for the C Series 8.3L.

Which 8.3L engines take the Bosch 0432191352?

Catalogs tie it to the Cummins C Series 8.3L built to CPL 8089, a 450 hp rating. Read the CPL off the engine data plate, or call 530-668-0818 with the engine serial number and we will check it.

Is it the same as the Bosch 0432191738 for the 8.3L?

No. The 0432191738 is Cummins 3919602 and opens at 205 to 219 bar. This one has a 5-hole nozzle and opens at 260 to 274 bar. Go by the number on your old injector or the engine CPL.

Is the 0432191352 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 return.

Related Parts

• Cummins 6CT 8.3L C Series Mechanical Fuel Injector (3926120, 3802485) | Bosch 0432191642 New
• Cummins 6CT 8.3L C Series Mechanical Fuel Injector (3802486, 3928387) | Bosch 0432191628 New
• Cummins 6CTA 8.3L C Series Mechanical Fuel Injector | Bosch 0432191740 New (Cummins 3919058, 3802288)
• Cummins ISC & ISL 8.9L HE300VG Turbo Actuator Kit | Holset 6382091HX Remanufactured
• Bosch P7100 Inline 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.