OEM / REF: 387-9433SKU: pilotpart222823
Injector Group 387-9433 10R-7222 For Caterpillar Track Feller Buncher 2391 521B 5412 521 is a Injectors & Nozzle replacement part indexed for CAT 521 and CAT 522, with 3 application records on file. Match OEM part number 387-9433 and confirm fitment for Caterpillar Engine Spare Parts before ordering.
This Injectors & Nozzle is indexed for CAT 521; CAT 522; CAT 532; CAT 541. Compare reference number 387-9433 against the label on your existing Caterpillar component before ordering.
Additional cross references on file: 10R-7222. If your machine plate shows a different number, submit a fitment inquiry with photos before checkout.
| Length (mm) | 360.7 |
|---|---|
| Width (mm) | 134.6 |
| Height (mm) | 134.6 |
| Part Number | 387-9433, 10R-7222, 3879433, 10R7222 |
Match the OEM or reference number first, then verify machine model, engine model, serial number, connector layout, mounting points, and old part photos.
Yes. Send the old part number, machine plate, and photos through the fitment inquiry form. Support can review possible replacements or alternatives.
Products are indexed as replacement parts unless explicitly marked otherwise. Always compare reference numbers and confirm fitment before purchase.
