Fuel Injector Cup Set
When rebuilding your cylinder head or servicing your fuel system, don't risk performance-robbing vacuum leaks by reusing worn-out factory hardware. Unlike previous engine generations, these fuel injector cups are located directly in the cylinder head casting to provide a clean, perfectly sealed seat for your OEM Toyota injectors.
Over time, extreme under-hood heat cycles and age cause the factory plastic cups to become incredibly brittle. In fact, they rarely come out in one piece during a cylinder head teardown. Because this is a labor intensive are to access, replacing these components as preventative maintenance is highly recommended. This complete kit provides the exact pieces needed to fully restore your engine's injector seats.
What's Included
- (4) OEM Toyota Spec Fuel Injector Cups
- (4) OEM Toyota Spec Injector Cup O-Rings
Key Features & Specifications
- Engine Fitment: Toyota 2RZ-FE (2.4L) and 3RZ-FE (2.7L) 4-Cylinder Engines
- Material: High-Temperature, fuel-resistant polymer composite and premium rubber O-rings
- Installation: Press-fit into the factory cylinder head injector ports
- Function: Eliminates unmetered air draw and protects engine vacuum integrity.
Reference Cross-Component Numbers
| Component | Equivalent OEM Toyota Part Number | Qty Included in Kit |
| Fuel Injector Cup | 90561-10018 | 4 |
| Injector Cup O-Ring | 90301-19006 | 4 |
-Ordering Note:
- This SKU is sold strictly as a complete set of 4 to overhaul the entire engine.
- This complete 8-piece set supplies enough components to fully service one 4-cylinder engine.
- Always ensure the cylinder head injector ports are thoroughly cleaned and free of debris prior to pressing in the new cups.
| Note: Images are for illustration purposes only. Images may not represent the product listed. Please contact customer service with any questions or concerns: 1-928-505-2501. |
- 1995.5-2004 2RZ 2.4L Engines
- 1995.5-2004 3RZ 2.7L Engines