This is the genuine Bosch 0432191284, a new mechanical fuel injector for the Mack E7 12.0L. It is a complete nozzle and holder assembly, set and ready to fit. It replaces Mack 736GB410M3 and 736GB420M3, and the Mack exchange numbers 736GB410M3X and 736GB420M3X. Bosch also lists it as 0432193540.

Mack used several Bosch injectors on the E7 family, and each has its own Mack number. The M3 on the end of the Mack number matters: Bosch lists Mack 736GB410M and 736GB420M, without the 3, under a different injector, the 0432191283. Order by the Mack number in your parts book or the Bosch number stamped on the old injector body. The engine takes six.

Specifications

Fits / Applications

• Mack E7 12.0L engines that use Mack injector 736GB410M3 or 736GB420M3
• Mack 736GB410M and 736GB420M are listed under Bosch 0432191283
• Mack 736GB419M2 is listed under Bosch 0432191290
• Six injectors per engine

Part Numbers & Cross Reference

Bosch 0432191284  ·  Bosch (alternate number) 0432193540  ·  Mack 736GB410M3  ·  Mack 736GB420M3  ·  Mack (exchange number) 736GB410M3X  ·  Mack (exchange number) 736GB420M3X

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 Mack numbers does the Bosch 0432191284 replace?

Mack 736GB410M3 and 736GB420M3, and the exchange numbers 736GB410M3X and 736GB420M3X. Bosch also lists the same injector as 0432193540.

Is the 0432191284 the same as the 0432191283?

Bosch lists them as two separate injectors. The 0432191283 is listed for Mack 736GB410M and 736GB420M, without the 3 on the end. Order the one that matches your Mack number.

Is this a new injector or a rebuilt one?

It is a new genuine Bosch injector, a complete nozzle and holder assembly, not a rebuild.

How do I confirm it fits my Mack E7?

Read the Bosch number on the body of your old injector or the Mack number in your parts book. You can also call 530-668-0818 with your engine serial number.

Related Parts

• Mack E7 E-Tech 12.0L Fuel Injector Nozzle & Holder Assembly (736GB410M) | Bosch 0432191283 New
• Mack E7 ASET Fuel Injector Nozzle & Holder Assembly (736GB419M2, 25101204) | Bosch 0432191290 New
• Mack Diesel Engine Fuel Injector Nozzle & Holder Assembly (736GB421M2) | Bosch 0432191273 New
• Mack E7 E-Tech & ASET 12.0L Electronic Unit Pump (EUP) | Bosch 0986445011 Remanufactured (Mack 313GC5233M)

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.