This is the Bosch 0432191738, a new mechanical fuel injector for the Cummins C Series 8.3L six-cylinder, the engine Case calls the 6T-830 or 6TA-830. Catalogs list it for the Case IH Magnum 7150 with injection pump J926162 and for the Magnum 7250 before PIN JJA0064978, where the parts book calls it J919602. It is a complete nozzle and holder assembly, set and ready to fit, not a rebuild. It replaces Cummins 3919602 and 3802455 and Case IH / New Holland J919602, and it opens at 205 to 219 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 Magnum tractors were built with more than one, so match the number before you order. Later 7250 tractors take the Bosch 0432191632 (Case J926787), which opens at 300 to 314 bar. Bosch 0432191352 (Cummins 4078400) is another 8.3L injector: it opens at 260 to 274 bar and is a different part.

Specifications

Fits / Applications

• Cummins C Series 8.3L engines, six-cylinder, that call for injector 3919602 or 3802455
• Case IH Magnum 7150 tractor with injection pump J926162 (the 7150 was also built with injector J921359)
• Case IH Magnum 7250 tractor before PIN JJA0064978 (later 7250 tractors take Bosch 0432191632, Case J926787)
• Not for common-rail ISC or QSC 8.3L engines
• Six injectors per engine
• Not the same as Bosch 0432191352 (Cummins 4078400)

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 0432191738  ·  Cummins 3919602  ·  Cummins 3802455  ·  Case IH / New Holland J919602  ·  Case IH reman exchange number JR919602

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 numbers does the Bosch 0432191738 replace?

Cummins 3919602 and 3802455, and Case IH / New Holland J919602. It also takes the place of the remanufactured exchange injector JR919602.

Will the Bosch 0432191738 fit my Case IH Magnum?

Catalogs list J919602 for the Magnum 7150 with injection pump J926162 and for the 7250 before PIN JJA0064978. Later 7250 tractors take the 0432191632 (Case J926787), and the 7150 was also built with J921359, so check the number on your old injector or call 530-668-0818 with the tractor PIN and engine serial number.

Is it the same as the Bosch 0432191352 for the 8.3L?

No. The 0432191352 is Cummins 4078400 and opens at 260 to 274 bar. This one opens at 205 to 219 bar. Go by the number on your old injector.

Is the 0432191738 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

• Case IH Magnum 7250, 8950, MX200, MX220 Cummins 8.3L Mechanical Fuel Injector | Bosch 0432191632 New (3926787)
• Case IH 1688, 2188 Combine & Cummins 6CT 8.3L Mechanical Fuel Injector | Bosch 0432191794 New (3908513)
• Cummins 6CT 8.3L C Series Mechanical Fuel Injector (3926120, 3802485) | Bosch 0432191642 New
• Cummins ISC & ISL 8.9L HE300VG Turbo Actuator Kit | Holset 6382091HX Remanufactured
• Mechanical Diesel Injector Testing & 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.