On a Chrysler 300, replacing all fuel injectors typically costs about $600 to $1,500, depending on engine (3.6L or 5.7L) and local labor rates. If only one injector fails, the bill can be significantly lower, roughly $250 to $600.
Engine options and cost impact
The Chrysler 300 has used different engines over its model years. The two most common for recent models are the 3.6L Pentastar V6 and the 5.7L Hemi V8. Each engine uses one injector per cylinder, so a full set means replacing six injectors on the 3.6L and eight on the 5.7L. Injector replacement costs scale with parts price and labor time, which varies by shop and locale.
3.6L Pentastar V6 (6 injectors)
Estimated parts cost: typically $360–$900 for a full set. Labor often runs about 2–4 hours, depending on access and whether the intake manifold must be removed. At typical shop rates of $100–$150 per hour, labor can be roughly $200–$600. Total estimated range: about $560–$1,500.
5.7L Hemi V8 (8 injectors)
Estimated parts cost: typically $480–$1,200 for a full set. Labor is usually more extensive than on the 3.6L, often about 3–6 hours depending on engine layout and service procedures. At $100–$150 per hour, labor could be $300–$900. Total estimated range: about $780–$2,100.
Cost breakdown and scenarios
Below are quick scenarios to illustrate typical price ranges you might encounter. The figures assume a standard repair at a conventional shop and reflect common parts choices (OEM vs aftermarket) and labor rates.
- 3.6L Pentastar V6 with a full injector set replacement: Parts $360–$900; Labor $200–$600; Total $560–$1,500.
- 5.7L Hemi V8 with a full injector set replacement: Parts $480–$1,200; Labor $300–$900; Total $780–$2,100.
Prices can vary widely by region, the chosen injector brand (OEM vs aftermarket), and whether any additional repairs (like valve cleaning or fuel rail service) are needed. Always get an itemized, written estimate before authorizing work.
What affects the final price
Several factors influence the final bill beyond the engine type. Understanding them can help you anticipate costs and shop smarter.
- Local labor rates and shop pricing structure
- OEM versus aftermarket injector brands
- Whether the fuel rail and intake manifold must be removed/removed or only accessed
- Need for additional diagnostic work or related repairs (e.g., fuel system tests, leaks, or related seals)
Pro tip: request an itemized estimate that separates parts, labor, and any diagnostic fees, and ask about warranty terms for both parts and labor.
How to get a precise quote
To obtain an accurate price for your Chrysler 300, contact local repair shops with your car’s year, engine type, and a description of symptoms (rough idle, misfire, poor start, or fuel smell). Ask for a written, itemized quote and whether the price includes disposal fees, taxes, and a warranty on parts and labor. If multiple injectors are involved, some shops may offer a discount for replacing the full set at once.
Summary
Replacing fuel injectors on a Chrysler 300 generally costs between $600 and $1,500 for a full set, with higher totals for the 5.7L Hemi and added labor time. Replacing a single injector is considerably cheaper, typically in the $250 to $600 range. Costs vary by engine, injector brand, labor rates, and whether additional service is needed. Always seek a clear, written estimate and choose a reputable shop with warranty coverage on parts and labor.
Can I still drive with bad fuel injectors?
It can cause your catalytic converter to overheat. And if your catalytic converter overheats and fails. That's really hard on the pocketbook.
What is the biggest problem with Chrysler 300?
Top Chrysler 300 Problems
- Leaks May Develop at Electrical Connector on Automatic Transmission.
- Revised Rear Rotors For Brake Squeal in Cold Weather.
- Honk, Hiss, or Groan Noise From when Steering at Low Speeds.
- Chrysler 300 transmission failure with erratic shifting and inability to engage gears.
Is it worth fixing injectors on a car?
If the car and engine is old, but is likely to give prolonged service, it's best to change all the injectors. This is because a failure due to general wear and age indicates future failures are likely. However, if the car is destined for the scrap heap in a year or two, it's probably not worth replacing them all.
How much does it cost to replace all four fuel injectors?
Summary. The cost of fuel injector replacement can range from $1,200 to over $4,000, depending on factors like vehicle make, engine type, and whether you replace a single injector or a full set. Parts typically cost $100 to $1,000 each, with labor adding several hundred dollars based on engine accessibility.