Description This fuel injector is a direct replacement designed for select Buick, Chevrolet, and GMC vehicles with 4.3L or 5.3L engines. It meets OE specifications for reliable performance, improved fuel atomization, and consistent engine idle.

Features – OE-spec design for seamless installation – Wide compatibility with Buick, Chevrolet, and GMC vehicles – Cross-reference OEM numbers 12668397, 12668398, 12668390 – Precision-engineered nozzle for optimal fuel spray pattern – Durable construction resistant to heat, vibration, and corrosion

Specifications – Part Type: Fuel Injector – OEM Cross-Reference: 12668397, 12668398, 12668390 – Material: High-grade metal and composite – Weight: 150.0g – Dimensions: 12.0 x 8.0 x 5.0 cm

Compatible With Suitable for Buick 4.3L 5.3L Suitable for Chevrolet 4.3L 5.3L Suitable for GMC 4.3L 5.3L

Package Include 1x Fuel Injector

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Highlights

• This fuel injector delivers precise fuel delivery for improved combustion and engine performance in select vehicles
• Designed to fit Buick, Chevrolet, and GMC models with 4.3L or 5.3L engines for reliable compatibility
• Constructed from high-grade metal and composite materials to resist heat, vibration, and corrosion for long service life
• Replaces OEM part numbers 12668397, 12668398, and 12668390 for accurate fitment across multiple vehicle variants
• Direct replacement design allows for plug-and-play installation without modifications, saving time and effort