Description
PAI 421106 is a HEUI injector seal kit for 2004–2015 International / Navistar DT466E and DT530E engines, replacing Navistar 1842624 / 1842624C92 and Mack 4333-1842624C92. The kit packages the three soft parts that seal each injector to the cylinder head: one injector tip seal (PAI 436026 / OE 1830317C1) plus the upper and lower fuel-rail O-rings (PAI 421231 / OE 1842483C1 and PAI 421232 / OE 1844934C1) — enough for one injector.
Specifications
| Manufacturer | PAI Industries |
|---|---|
| Part Number | 421106 |
| OEM Number | Navistar 1842624C92 |
| Part Type | HEUI Injector Seal / O-Ring Kit (per injector) |
| Engine Compatibility | International DT466E HEUI, DT530E HEUI |
| Year Range | 2004–2015 |
Kit Includes
- Injector tip seal — PAI 436026 (OEM Navistar 1830317C1) (qty 1)
- Injector O-ring (0.95 in) — PAI 421231 (OEM Navistar 1842483C1) (qty 1)
- Injector O-ring (1.135 in) — PAI 421232 (OEM Navistar 1844934C1) (qty 1)
Cross References
This kit replaces or is equivalent to the following part numbers:
- Navistar / International: 1842624, 1842624C92
- Mack: 4333-1842624C92
- Alliant Power: AP0026
- Dorman: 904-8061
Applications
This injector seal kit fits the following engines:
- International / Navistar DT466E HEUI 7.6L (2004–2015)
- International / Navistar DT530E HEUI 8.7L (2004–2015)
Representative vehicles using these engines:
- International DuraStar 4300 / 4400 (2004–2015)
- International WorkStar 7400 / 7500 / 7600 (2004–2015)
- IC Bus CE / RE / FE / HC school and commercial buses with DT466E (2004–2015)
One kit seals one injector. For a complete engine reseal, order one kit per cylinder (DT466E / DT530E both use 6 injectors). Verify your engine serial number and HEUI configuration before ordering.









