A-Premium 8-Pack 4-Hole Fuel Injectors for GM 4.8L–6.0L V8s — Matched Set for Silverado, Tahoe, Suburban

These A-Premium 8-pack four-hole fuel injectors replace worn or clogged injectors on many Chevrolet, GMC, Buick and Cadillac 4.8L–6.0L gasoline engines, restoring spray pattern and fueling consistency.

If your pickup, SUV or van with a 4.8L, 5.3L or 6.0L V8 is showing rough idle, reduced throttle response or poor fuel economy, fresh injectors can address those symptoms when the root cause is injector wear or blockage. This A-Premium kit contains eight matched 4-hole injectors manufactured to fit a long list of GM platforms from model years roughly 1999–2007, and includes the part references commonly used for cross-checking compatibility.

Which vehicles and engines do these injectors fit?

These injectors are designed for a wide range of GM vehicles equipped with 4.8L, 5.3L or 6.0L gasoline V8 engines across Chevrolet, GMC, Buick, Cadillac and related platforms. Compatibility covers Silverado, Sierra, Tahoe, Suburban, Yukon, Express, Savana, Avalanche, Trailblazer, SSR, Escalade and select Isuzu and NPR models within the listed years.

• Silverado/Sierra 1500/2500/3500 and HD variants (1999–2007 ranges shown)
• Tahoe, Suburban, Yukon, Yukon XL, Avalanche, Trailblazer, SSR (specific year/engine fitments apply)
• Express and Savana vans plus select Isuzu/NPR commercial models
• Cross-references include MP-10006, MP10006, 8171136980, 17113698, FJ10062, FJ315

How do these 4-hole injectors affect engine performance?

Four-hole injectors offer a finer, more even spray pattern than single-hole designs, which can improve fuel atomization and distribution in the combustion chamber. When installed as a matched set, they help the engine deliver steadier idle, smoother throttle transitions and more consistent fuel delivery across all cylinders.

• Matched 8-pack reduces cylinder imbalance from mixed injector wear
• Four-port spray helps atomize fuel for cleaner combustion
• Improved throttle response and smoother idling when injectors are the limiting factor
• Sold as a set to simplify full-bank replacement on V8 engines

What should I know before installation?

Proper installation reduces the chance of leaks and premature failures. Lubricating O-rings with clean engine oil and carefully seating the injectors into the fuel rail and intake are essential steps. Confirm electrical connector and fuel rail compatibility, and replace any damaged seals or retaining clips during the job.

• Lubricate injector O-rings with engine oil before insertion to prevent damage
• Verify automatic transmission-specific fit when noted for certain 2000 models
• Check cross-reference numbers (MP-10006 / 8171136980 / FJ10062) for exact matches
• Replace seals or connectors if worn; test for fuel leaks before starting engine

Are these injectors direct replacements or do I need extra parts?

They are engineered as direct-replacement injectors for the listed vehicle and engine combinations; in most cases no tuning is required. However, if your vehicle shows other fuel system issues—such as a failing fuel pump, clogged filter, or wiring problems—address those items to fully restore performance.

• Direct-fit for compatible GM 4.8L, 5.3L, 6.0L gasoline engines on the listed models
• No ECU recalibration required for typical installations when specifications match
• Inspect fuel lines, pump and filters during service to avoid repeat issues
• Keep original part numbers on hand to confirm compatibility before purchase

Who is this for: This A-Premium 8-pack is aimed at owners and technicians performing a full-bank injector replacement on late‑90s to mid‑2000s GM V8 trucks, SUVs and vans. It's a practical choice for vehicles showing injector-related symptoms or for preventative maintenance when rebuilding or refreshing the fuel system on compatible Chevrolet, GMC, Buick and Cadillac models.