Prices for a fuel injector on a 2018 Chevy Silverado depend on the engine and whether you buy OEM or aftermarket parts. Expect roughly $60–$150 per injector for a new unit, with a full set ranging from about $360 to $1,080 for the 4.3L V6 (six injectors) and from about $480 to $1,440 for the 5.3L or 6.2L V8 (eight injectors).
In this article, we’ll detail how prices vary by engine, what you pay for a single injector versus a full set, and practical tips for shopping. The Silverado’s engine choice determines the number of injectors you need, and brands span OEM GM/ACDelco to aftermarket and remanufactured options. Labor costs to install are separate and can significantly affect the total bill.
Engine options and injector counts
4.3L V6
The 2018 Silverado with the 4.3L V6 uses 6 fuel injectors—one for each cylinder. Prices for this engine reflect a smaller full-set total than the V8 options.
5.3L V8
The 5.3L V8 uses 8 fuel injectors. This is the most common configuration in many Silverado trims, and the full-set price scales with eight units.
6.2L V8
The 6.2L V8 also uses 8 injectors. As with the 5.3L, buying a full set will involve eight parts, typically at the higher end of aftermarket/oem price ranges.
Typical price ranges
Prices below reflect common market options as of recent years across major retailers. Exact pricing will vary by retailer, location, and whether components are OEM, aftermarket, or remanufactured.
- New OEM injectors (GM/ACDelco): about $90–$150 per injector
Full set: 6 injectors (4.3L) roughly $540–$900; 8 injectors (5.3L/6.2L) roughly $720–$1,200. - Aftermarket new injectors (Delphi, Bosch, etc.): about $60–$120 per injector
Full set: 6 injectors about $360–$720; 8 injectors about $480–$960. - Remanufactured/rebuilt injectors: about $40–$90 per injector
Full set: 6 injectors roughly $240–$540; 8 injectors roughly $320–$720.
Prices include only the injectors themselves; core charges, shipping, and taxes may apply. Always confirm the exact price for the engine in your Silverado (4.3L vs. 5.3L vs. 6.2L) and whether you’re buying a single unit or a complete set.
Buying tips and cost-saving options
Before you buy, consider how many injectors you actually need, your preferred brand, and whether you’ll reuse existing hardware. Below are practical tips to help you shop smartly.
- Know your engine: verify whether your Silverado has the 4.3L V6 (6 injectors) or a V8 (8 injectors) to avoid buying the wrong set.
- Compare OEM vs aftermarket: OEM injectors tend to be more expensive but may offer a closer fit and warranty; aftermarket options can save money with comparable quality.
- Consider remanufactured options: remanufactured injectors are typically cheaper and may include a warranty, but confirm return policies and warranties.
- Watch for core charges: some suppliers charge a core deposit that’s refunded after you return old injectors.
- Check multiple retailers: compare AutoZone, RockAuto, O'Reilly, NAPA, and dealer prices to find the best deal; don’t forget to factor shipping and taxes.
- Read warranties and return policies: longer warranties can offer better protection if a part fails soon after installation.
Using multiple sources and confirming the exact engine configuration will help you avoid overpaying and ensure you get the correct injectors for your Silverado.
What to expect during replacement
Replacing fuel injectors can be straightforward on some engines but more involved on others, especially if access is restricted. A professional replacement typically involves diagnosing the exact faulty injector, relaying the diagnosis, possibly replacing one injector or the full set, and reprogramming the engine control module if required. Labor costs vary by shop and region, so obtain several quotes if possible.
Summary
For a 2018 Chevy Silverado, injector pricing depends on the engine. Expect roughly $60–$150 per injector for new options, with full-set prices ranging from about $360–$1,080 for the 4.3L V6 and $480–$1,440 for the 5.3L/6.2L V8, depending on OEM vs aftermarket and whether the injectors are remanufactured. Always verify your exact engine configuration, compare several retailers, and consider labor and possible core charges when budgeting. A careful price check can help you balance cost and reliability as you plan the replacement.