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8x Fuel Injectors for 2014-2017 GMC Sierra 1500 5.3L V8 – OEM A12668390 Replacement
Feature
◆Direct Fit OEM Replacement
Designed to perfectly replace the original fuel injectors (OEM A12668390) for a hassle-free installation.
◆Enhanced Engine Performance
Restores proper fuel delivery for smooth acceleration, optimal power, and better throttle response.
◆Prevent Misfires & Rough Idling
Precisely engineered to prevent engine misfires, rough idling, and hesitation, ensuring reliable performance.
◆Durable & Long-Lasting
Made from high-quality materials to withstand heat, pressure, and long-term wear for maximum durability.
◆Compatible Vehicles
Fits 2014-2017 GMC Sierra 1500 with 5.3L V8 engines. Check OEM A12668390 to ensure compatibility.
◆1-Year Warranty
Confidence guaranteed with a full 12-month warranty on quality and performance.
Specifications
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Type: Fuel Injector
- Resistance: ~12–16Ω per injector (varies slightly by model)
- Operating Voltage: 12V DC
- Connector Type: 2-Pin Electrical Connector
- Package Weight: ~0.8 kg
- OE Replacement Part Numbers: A12668390, 12668390‑8N, FJ1217, 12687650, 12656932, 12661028, 12623116, 12628422, 12656005, 12672368, 12668649, 12684125, 12710481, 12698484, 0507307218
Above are the OEM interchange reference numbers, please check if they match before purchasing.
Key Benefits
- Enhanced Engine Performance – Smooth acceleration, increased power, and improved throttle response
- Improved Fuel Efficiency – Reduces unburned fuel, lowers consumption and emissions
- Durable & Reliable – Built with quality materials and rigorously tested for long-lasting performance
- Easy Installation – Plug & play design, replaces in minutes without tools
- Warranty – 1-year worry-free guarantee
Compatibilities
| Year | Make | Model | Engine | Fuel Type | VIN Code |
| 2014–2017 | Chevrolet | Silverado 1500 | 5.3L V8 | Gasoline | C |
| 2014–2017 | Chevrolet | Silverado 1500 | 4.3L V6 | Flex Fuel | H |
| 2017 | Chevrolet | Silverado 1500 | 5.3L V8 | Electric / Gas | R |
| 2015–2017 | Chevrolet | Suburban | 5.3L V8 | Gasoline | C |
| 2015–2017 | Chevrolet | Tahoe | 5.3L V8 | Gasoline | C |
| 2014–2017 | GMC | Sierra 1500 | 5.3L V8 | Gasoline | C |
| 2014–2017 | GMC | Sierra 1500 | 4.3L V6 | Flex Fuel | H |
| 2017 | GMC | Sierra 1500 | 4.3L V6 | Flex Fuel | H |
| 2017 | GMC | Sierra 1500 | 5.3L V8 | Electric / Gas | R |
| 2015–2017 | GMC | Yukon | 5.3L V8 | Gasoline | C |
| 2015–2017 | GMC | Yukon XL | 5.3L V8 | Gasoline | C |
Compatible with GM 4.3L V6 & 5.3L V8 engines (L83 / LV3 platforms)
Supports Gasoline / Flex Fuel / Hybrid (Electric-Gas) configurations
Always verify by OEM number (12668390) or VIN before purchase
Package list
- 8 x Fuel Injector
Installation
It is recommended that you install the guidance of professionals.
FQA
Q1: What is a Fuel Injector?
A: A component that delivers fuel precisely to your engine for smooth performance and efficiency.Q2: Why choose high-quality injectors?
A: Ensures accurate fuel delivery, smooth acceleration, better fuel economy, and long lifespan.Q3: Will it fit my car?
A: Check your vehicle make, model, year, and OE part number for proper compatibility.Q4: Is it easy to install?
A: Most are direct-fit. Professional installation is recommended for best results.Q5: Warranty and lifespan?
A: Typically lasts 100,000+ miles and comes with a 1-year limited warranty.