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Reviewed in the United States on May 20, 2025
These replacement fuel injectors are a solid option for older GM vehicles with the 4.3L V6 engine. Compatibility covers a wide range of models from 1996 to 2006, including the Chevy Astro, Blazer, Silverado 1500, and GMC Savana, Jimmy, and Safari. The injectors come pre-installed with O-rings and appear to meet the OEM specs for models using part numbers like FJ503 and 217-3028.Performance is consistent with expectations for a replacement part. Installation is straightforward, and once fitted, the engine idle improves with smoother starts and more balanced fuel delivery. The atomized spray pattern provides efficient combustion, helping reduce engine vibration and improving throttle response.Fuel economy may see modest improvements over worn or clogged stock injectors. While they may not match OEM injectors in absolute precision or longevity, they perform reliably and offer good value for aging vehicles where OEM replacements can be cost-prohibitive.A dependable, cost-effective choice for restoring fuel system performance on high-mileage GM 4.3L V6 engines. :)
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