How much will it cost to replace injectors?

In most cases, replacing fuel injectors costs about $200–$450 for a single gasoline port injector, $900–$2,000 for a full set on a gasoline direct-injection (GDI) 4‑cylinder, and $2,500–$6,500+ for a full set on modern diesel engines in the U.S. as of 2025. The exact price depends on injector type (port, GDI, diesel), the number of cylinders, parts quality (reman vs. new/OEM), labor time, and local shop rates. Below is a breakdown to help you budget accurately and talk to your shop with confidence.

What drives the price?

Injector replacement costs vary widely because different systems, engines, and access constraints affect both parts and labor. These are the key factors your estimate will reflect.

• Injector type: Port fuel injectors are cheapest; GDI injectors cost more; diesel common-rail injectors are the most expensive.
• Number of cylinders: More cylinders mean more injectors; some engines require replacing injectors in sets for balance and warranty.
• Labor time and access: Some engines require intake removal or special tools; seized injectors on diesels can add time.
• Coding/calibration: Many Euro and GDI systems need injector coding/adaptation (adds 0.5–1.0 hr).
• Related parts: One-time-use high‑pressure lines, seals, decouplers, gaskets, and filters add parts cost.
• Diagnostics: Proper diagnosis (scan, balance test, leak-down) typically runs $120–$200 before repair.
• Shop rate and location: 2025 U.S. labor rates commonly run $120–$200+/hr; metro and dealer rates are higher.

Taken together, these elements determine whether your bill is closer to a few hundred dollars or several thousand.

Typical price ranges by fuel system (U.S., 2025)

The following ranges reflect common U.S. parts and labor with shop rates around $120–$200/hr. Your vehicle, region, and parts choice will determine where you land within these brackets.

• Gasoline, port injection (PFI):
  – Single injector: $200–$450 total (parts $30–$150; 0.7–2.0 hr labor)
  – Full set, 4‑cyl: $400–$900; 6‑cyl: $600–$1,200
• Gasoline, direct injection (GDI):
  – Single injector: $300–$700 total (parts $120–$350; 2–4 hr if access is involved)
  – Full set, 4‑cyl: $900–$2,000; V6/V8: $1,400–$3,500
• Diesel, common-rail:
  – Per injector: $250–$900 each (reman vs. new/OEM)
  – Full set: 4‑cyl $1,800–$3,500; 6‑cyl $2,500–$5,000; 8‑cyl $3,500–$6,500+
• Coding/adaptation (if required):
  – Add 0.5–1.0 hr ($60–$200) plus potential scan-tool fees
• Extra risk factors:
  – Seized injectors (diesel), broken hold-downs, or carbon build-up can add $100–$600+ in time/tools

If your quote is outside these ranges, ask the shop to itemize parts, labor hours, diagnostic time, and any added risk allowances.

Example estimates for popular vehicles

These ballpark figures combine typical parts pricing and labor times seen in 2025 across independent shops and dealers in the U.S. Your vehicle’s condition and location can shift totals.

• Ford F‑150 3.5L EcoBoost (GDI, 6 injectors): $1,200–$2,600 for the set (parts $900–$1,600; labor 3–5 hr; may include new high‑pressure lines and coding).
• Toyota Corolla 1.8L (PFI, 4 injectors): $200–$350 to replace a single injector; $450–$800 for all four (often paired with new seals and rail cleaning).
• Chevy/GMC 6.6L Duramax (diesel, 8 injectors): $3,000–$6,000 total (reman vs. new; labor 6–10 hr; may include return lines and one‑time‑use fuel lines).
• Ford 6.7L Power Stroke (diesel, 8 injectors): $2,800–$5,800 total depending on parts choice and access-related labor.
• BMW N20/N55 (GDI, 4–6 injectors): $1,200–$3,200 (injectors $250–$350 each, plus decouplers, coding/adaptation, 3–5 hr labor).
• VW/Audi 2.0 TDI CR (diesel, 4 injectors): $1,500–$3,000 (reman vs. new; access and seized-injector risk can add labor).

For a firm quote, provide your VIN, engine code, mileage, and any trouble codes or symptoms; this lets shops price the correct injector part number and required procedures.

How to save money (without cutting corners)

There are smart ways to control injector replacement costs while protecting reliability and warranty coverage.

• Confirm the diagnosis: Misfires can come from plugs, coils, vacuum leaks, MAF/oxygen sensors, or a high‑pressure fuel pump; pay for a proper workup first.
• Replace as a set when warranted: On diesels, high‑mileage GDI, or when contamination is found, a full set avoids repeat labor and balancing issues.
• Choose reman wisely: Quality reman injectors from reputable brands can save 20–40% versus new; check warranty length (12–24 months is common).
• Ask about one‑time‑use parts: New high‑pressure lines, seals, and decouplers prevent leaks and are often required for warranty.
• Independent specialists: A good indie shop can match dealer quality at lower labor rates; look for diesel or European specialists as needed.
• Preventive maintenance: Use top‑tier fuel, timely filters, and periodic intake/valve cleaning (for GDI) to extend injector life.

Balancing parts quality, correct procedures, and experienced labor typically delivers the best long-term value.

Symptoms and when replacement is necessary

Injector problems overlap with other faults. Knowing the patterns helps decide between cleaning, repair, or full replacement.

• Common symptoms: Rough idle, misfire under load, hard starts, poor MPG, fuel smell, black/white smoke (diesel), or fuel trims out of range.
• Failure modes that require replacement: Electrical open/short, cracked body, tip leakage, stuck pintle, or failed balance/return rate (diesel).
• When cleaning may help: Minor flow imbalance or deposits on PFI; GDI and diesel respond less to on‑car cleaning if mechanical/electrical failure exists.
• Contamination events: If water/metal found in fuel, plan on a full set plus lines/filters and system flush; insurers sometimes cover bad‑fuel incidents.

If your shop can provide injector balance/return-rate data or cylinder contribution tests, you’ll have clearer justification for replacement scope.

What the job includes and how long it takes

Injector replacement is more than swapping parts; proper prep and calibration ensure reliability and emissions compliance.

1. Diagnosis and depressurizing the fuel system; battery disconnected as needed.
2. Removing intake/engine covers and fuel rail; extracting injectors (diesels may need pullers).
3. Installing new injectors with fresh seals, clips, and any required one‑time‑use fuel lines.
4. Torqueing to spec, reassembly, and leak checks at operating pressure.
5. Coding/adaptation (if applicable), clear codes, and road test with live data review.

Time can range from under 1 hour (easy PFI access) to 6–10+ hours (tight GDI layouts or diesel with seized injectors).

Regional price snapshots

Labor rates and parts pricing vary internationally; these broad ranges help calibrate expectations outside the U.S.

• UK: PFI single £150–£300; GDI 4‑cyl set £700–£1,600; diesel sets: 4‑cyl £1,200–£2,600, 6‑cyl £1,800–£3,800, 8‑cyl £2,800–£5,200.
• Canada: PFI single C$250–C$550; GDI 4‑cyl set C$1,200–C$2,600; diesel V8 set C$4,500–C$8,500.
• Australia: PFI single A$250–A$600; GDI 4‑cyl set A$1,300–A$2,800; diesel V8 set A$5,000–A$9,500.
• Eurozone: PFI single €180–€380; GDI 4‑cyl set €900–€2,100; diesel sets vary widely by make/engine and VAT.

Big-city dealer rates and luxury/EU brands tend to cost more due to higher labor rates and coding requirements.

Warranty and parts quality

To avoid repeat repairs, align parts quality with your vehicle’s needs and ensure the job is done to spec.

• OEM vs. aftermarket: OEM/new offers best fit and longevity; quality aftermarket or reman can be cost-effective if well-sourced.
• Warranty terms: Look for at least 12 months/12,000 miles on parts and labor; diesel injectors may offer 24 months.
• Documentation: Keep injector codes, calibration data, and proof of replaced lines/seals for warranty claims.

A thorough invoice and parts list make future diagnostics and warranty support much easier.

Summary

Expect $200–$450 to replace a single gasoline port injector, $900–$2,000 for a full set on a 4‑cyl GDI, and $2,500–$6,500+ for diesel sets in the U.S., with totals driven by injector type, cylinder count, labor time, coding, and local rates. Get a detailed, itemized estimate, confirm the diagnosis, and choose parts and procedures that balance cost with reliability—especially on GDI and diesel systems where coding, one‑time‑use lines, and contamination control matter.

Can you drive a car with a bad injector?

It can cause your catalytic converter to overheat. And if your catalytic converter overheats fails. That’s really hard on the pocketbook.

Is it worth replacing fuel injectors?

While repairing a fuel injector may seem like a quick fix, opting for a replacement can provide greater longevity, reliability, and peace of mind in the long run. Think of it as investing in the future health and performance of your vehicle.

Is it worth fixing injectors?

Yes, fuel injector repairs are very necessary. A faulty injector can harm your engine and needs prompt replacement to maintain proper fuel delivery and performance. Neglecting this can pose safety risks for you and other drivers.

What is a fair price to change injectors?

Average Cost of Fuel Injector Replacement
However, on average, you can expect to spend anywhere from $500 to $2,500 for this fuel injector replacement. Some individual fuel injectors can under $40 each while others are several hundred apiece.