A Plus Auto Spider Fuel Injector for 4.3L V6 Chevy/GMC — 6-Cylinder Direct-Fit, 55–63 ml/min Flow

The A Plus Auto Spider 6-cylinder fuel injector is a direct-fit replacement designed to restore reliable fuel delivery for 4.3L V6 Chevy, GMC, Isuzu and Oldsmobile engines.

This injector kit is engineered as a like-for-like replacement for many late-1990s to early-2010s 4.3L V6 applications, offering the flow rate, electrical characteristics and sealing features needed for dependable operation. It has been simulation-tested for spray pattern, leakage and nozzle consistency so you get predictable atomization and long-term service life when installed in compatible vehicles.

Which vehicles will accept this 4.3L V6 injector?

The A Plus Auto Spider injector is compatible with a broad range of Chevrolet, GMC, Isuzu and Oldsmobile models that used the 4.3L V6 between the mid-1990s and early 2010s. Check fitment against your year, model and engine before ordering to ensure the electrical connector, mounting and O-ring sizes match.

• Chevrolet: Astro, Blazer, C1500, Express 1500/2500, K1500, P30, S10, Silverado 1500 (specific years listed)
• GMC: C1500, Jimmy, K1500, P3500, Safari, Savana 1500/2500, Sierra 1500, Sonoma
• Also fits Isuzu Hombre and Oldsmobile Bravada V6 4.3L models

How does this injector match original equipment specifications?

This injector delivers a dynamic flow between 55–63 ml/min with a coil resistance around 12.5 ±1 Ω and includes pre-installed O-rings and a blade terminal. It features a basket inlet filter and nozzle testing to help ensure consistent spray angle and droplet size similar to the factory unit.

• Dynamic flow: 55–63 ml/min to match fuel mapping expectations
• Coil resistance: 12.5±1 Ω for proper electrical compatibility
• Pre-installed O-rings and 2-blade terminals for straightforward swap-in
• Basket inlet filter to reduce particulate ingress and prolong life

Which factory part numbers does it replace and what quality checks are performed?

The injector replaces multiple OEM and aftermarket references, simplifying cross-referencing during repair. Each injector is subjected to simulated tests for leakage, clogging, spray atomization, injection angle and nozzle uniformity across operating speeds to verify performance consistency.

• Cross-reference examples: 12568332, 17113673, 19210688 and common aftermarket codes
• Leakage test: ≤0.8 KPa/25s to maintain fuel system integrity
• Nozzle uniformity and atomization checks ensure even cylinder fueling

What does the warranty and installation support include?

A Plus Auto backs these injectors with a 1-year unlimited-mile warranty, giving short-term coverage against manufacturing defects. For best results, replace fuel injector O-rings and inspect harness connectors, fuel rail seals and mounting clips during installation; professional installation is recommended if you are not familiar with fuel-system service.

• 1-year, unlimited-mile warranty for defects in materials and workmanship
• Recommended: replace O-rings and clean fuel rail before installation
• Inspect electrical connectors and secure mounting for leak-free operation

Who is this for? The A Plus Auto Spider 6-cylinder 4.3L fuel injector is intended for DIY mechanics, professional technicians and fleet managers who need a dependable, tested replacement for worn or failing injectors on compatible Chevy, GMC, Isuzu and Oldsmobile V6 vehicles. If you have a 4.3L V6 showing rough idle, poor throttle response or failed injector diagnostic codes, this direct-fit option provides the flow characteristics, filtration and electrical match to return fuel delivery to spec when installed correctly. Always verify part numbers and vehicle fitment before purchase.