This is the Bosch 0432291492, a new mechanical fuel injector for the Iveco-built 2.9L three-cylinder and 3.9L four-cylinder engines in Case IH JX and New Holland TD, TN and TT utility tractors. It is a complete nozzle and holder assembly, not a rebuild. It replaces CNH and Iveco 504054021. Parts books and catalogs list it for the Case IH JX55, JX60, JX75, JX80, JX90 and JX1060C and the New Holland TD60D, TD75D, TD80D, TD90D, TN60A, TN60DA, TN60SA, TN60VA, TT55, TT60A, TT75 and TT75A, plus the TK80A and TK80MA crawler tractors.
Bosch sets the opening pressure at 260 to 272 bar. A tired injector on these tractors shows as black or white smoke, a miss at idle, hard starting and a loss of pull under load. These tractors came with three and four cylinder engines, so count your cylinders and order that many. Earlier builds of some models used a different injector: one catalog shows a serial number break on the JX75 and an earlier Tier 1 version of the TT55 and TT75 with another nozzle. The NEF engines (F4GE and F4CE) in Case backhoes and New Holland TS-A tractors take other injectors, such as Bosch 0432133779.
Confirm Fitment Before You Order
Several Case IH JX and New Holland TD, TN and TT tractors share a name but not an injector, and some changed injectors by serial number or emissions tier. Match 504054021 on your parts list or the Bosch number on the old injector, and send us the tractor model and serial number and the engine model from the data plate. Call 530-668-0818 and we will confirm the exact match at no charge before anything ships.
Specifications
| Part number | 0432291492 |
| Brand | Bosch |
| Condition | New, genuine, in original packaging |
| Warranty | Bosch limited warranty, parts only. Call us and we handle the claim. |
| Type | Mechanical fuel injector, complete nozzle and holder assembly |
| Engine | Iveco-built 2.9L three cylinder and 3.9L four cylinder (CNH) |
| Opening pressure | 260 to 272 bar |
| Injectors per engine | 3 or 4, one per cylinder |
| Shipping weight | 1 lb |
Fits / Applications
- Case IH JX55, JX60, JX75, JX80, JX90 and JX1060C
- New Holland TD60D, TD80D and TD90D, and TD75D (2006 to 2009)
- New Holland TN60A and TN60SA (2003 to 2008), TN60DA and TN60VA
- New Holland TT55, TT60A, TT75 and TT75A
- New Holland TK80A and TK80MA crawler tractors (2004 to 2009)
- CNH and Iveco number 504054021
- One injector per cylinder: three or four per engine
Fit new sealing washers, clean the injector bores, and change the fuel filter when you fit a set. Bleed the system before you start the engine.
Part Numbers & Cross Reference
Bosch 0432291492 · CNH / New Holland / Case IH 504054021 · Iveco 504054021 · CNH remanufactured exchange number 504054021R
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 number does the Bosch 0432291492 replace?
CNH and Iveco 504054021. That is the number in the Case IH and New Holland parts books for these tractors.
Will it fit my Case IH JX60 or New Holland TD80D?
Parts books list it for the Case IH JX55, JX60, JX75, JX80, JX90 and JX1060C and the New Holland TD60D, TD75D, TD80D and TD90D. Some early builds used a different injector, so call 530-668-0818 with your tractor serial number and we will check it.
How many do I need?
One per cylinder. These tractors were built with three and four cylinder engines, so count before you order.
Is it the same as the Case 580M backhoe injector?
No. The 580M Series 2 is listed with Bosch 0432133779, CNH 2852869. This one is CNH 504054021, for the JX, TD, TN and TT tractor engines.
Related Parts
- Case / New Holland 445T/M3, F4GE & F4CE 4.5L Mechanical Fuel Injector | Bosch 0432133761 New
- Case IH, New Holland, IVECO FPT VE4 Injection Pump 0460424404 | Bosch Authorized Remanufactured by VFI
- 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.
UPS Ground anywhere in the lower 48. Questions on fitment? Call 530-668-0818.
Pricing covers the unit itself. Any applicable sales tax is additional; shipping is calculated at checkout. Buying tax-exempt? Qualifying diesel repair shops, fleets, farms, and agricultural operations can purchase tax-free. Set up tax-exempt purchasing once and every qualifying order is tax-free going forward.










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