How much does it cost to replace a fuel injector?
Typically, replacing one fuel injector costs about $150 to $800, while replacing the entire set on a standard four-cylinder engine runs roughly $400 to $2,500. Direct-injection systems tend to be more expensive than traditional port-injection systems.
What you need to know about fuel-injector replacement costs
Several factors determine the final price, including the type of injector, whether you replace a single unit or the full set, the engine design, labor rates in your area, and whether OEM parts or aftermarket equivalents are used.
Injector type and engine design
Port (multi-point) injectors are generally cheaper per unit than direct-injection injectors, which operate at much higher pressures and may require additional work or parts.
OEM vs aftermarket parts
Aftermarket injectors can save money, but OEM injectors typically carry a compatibility guarantee and may be recommended for certain vehicles. The price gap can be substantial depending on the make and model.
Labor complexity and vehicle accessibility
Some engines are easy to access, while others require removing components, the fuel rail, or specialized tools. Labor time varies accordingly and can significantly affect the total cost.
Typical price ranges by injector type
Prices vary by injector type and supplier. The following ranges cover common scenarios for most passenger cars.
- Port fuel injectors (standard engines): aftermarket parts about $50–$150 per injector; OEM parts typically $150–$350 per injector.
- Direct-injection injectors: aftermarket parts about $250–$600 per injector; OEM parts typically $450–$1,000 per injector.
In practice, a single injector replacement often falls in the $150–$800 range, depending on parts choice and local labor rates. Replacing the entire set on a typical 4-, 6-, or 8-cylinder engine can range from about $500 up to several thousand dollars, especially for direct-injection setups.
Labor costs and total estimates
Labor time and rates vary by region and shop. The following estimates assume mid-range labor rates and common engine layouts.
- Labor time: 1–2 hours for a single injector on many engines; 3–6 hours or more for a full set on a typical 4– to 6-cylinder engine.
- Labor rate: generally $75–$150 per hour in many areas; higher in large metro markets, sometimes $150–$200+ per hour.
- Single injector replacement total (parts plus labor): roughly $180–$700.
- Full set replacement total (4 injectors on a 4-cylinder, or 6 on a 6-cylinder): roughly $500–$2,000 for parts plus $225–$900 for labor, depending on engine and parts quality.
- Full set replacement total (8 injectors on an 8-cylinder): roughly $900–$3,000+ for parts plus $450–$1,200 for labor.
Note: Some shops include diagnostic fees or fuel-system checks. If seals, o-rings, or the fuel rail are replaced, that can add $50–$200 to the bill. For high-performance or luxury vehicles with direct-injection, expect higher costs.
Additional considerations
DIY vs professional replacement
Replacing a single injector yourself may be feasible on some vehicles, but correct installation, seals, and drivetrain safety are critical. Professional service ensures proper testing, leak checks, and warranty coverage on parts.
Alternative options
In some cases, a fuel-injector cleaning or service can address performance problems, potentially reducing costs compared with full replacement. However, cleaning may not fix all issues, especially if an injector is physically damaged or clogged beyond repair.
Summary
Fuel-injector replacement costs depend on injector type, how many units are replaced, and the labor rate in your area. Anticipate roughly $150–$800 for a single injector and $500–$2,000+ for a full set on a typical vehicle, with higher-end vehicles or direct-injection systems tending toward the upper end. Always consult a trusted shop for a precise, vehicle-specific estimate that includes parts, labor, and any required ancillary work.
