A-Premium Engine Ignition Coil 12568062 — Direct-Fit Replacement for GM, Isuzu & Saab Engines

The A-Premium Engine Ignition Coil 12568062 is a direct-fit replacement ignition coil engineered to restore reliable spark delivery for compatible GM, Isuzu, Saab, Buick and Hummer engines.

If your vehicle shows rough idle, misfires, or a check engine light related to ignition, a worn or damaged coil can be the culprit. This A-Premium coil (reference 12568062 and several OEM cross-numbers) is manufactured to match original fitment and deliver stable high-voltage output to the spark plugs. It’s designed for straightforward installation on specific V4, V5 and V6 engine platforms used across Chevrolet, GMC, Isuzu, Buick, Hummer, Oldsmobile and Saab models from the early-to-mid 2000s.

Which vehicles and engines will this ignition coil fit?

This coil is intended for a range of GM-based and Isuzu vehicles. Fitment covers multiple engine types and model years, so always compare part numbers before purchase.

• Chevrolet Colorado 2004–2006: L4 2.8L and L5 3.5L
• Chevrolet Trailblazer/Trailblazer EXT 2002–2005: L6 4.2L
• GMC Canyon 2004–2006: L4 2.8L and L5 3.5L
• GMC Envoy/Envoy XL/Envoy XUV 2002–2005/2004–2005: L6 4.2L
• Isuzu Ascender, i-280, i-290, i-350, i-370 across specific years and displacements
• Buick Rainier, Hummer H3, Oldsmobile Bravada, Saab 9-7x on listed years and engines

How does this ignition coil improve vehicle performance?

Replacing a failing coil with a properly matched unit restores consistent spark timing and intensity, which helps engines run smoothly and efficiently. While it won’t change engine design, a good coil reduces misfires and can help eliminate hesitation during acceleration.

• Consistent high-voltage output for reliable combustion
• Reduces cylinder misfires and rough idling
• Engine-specific fit minimizes installation adjustments
• OEM cross-reference numbers help confirm correct replacement

Is installation difficult and what should I check before swapping coils?

Installation is generally straightforward for anyone with basic mechanical experience and common hand tools. Prior to replacing the coil, identify the failing cylinder via diagnostics and inspect spark plugs, wiring, and connectors to avoid repeating the issue.

• Perform a diagnostic trouble code scan to identify misfiring cylinders
• Inspect spark plug condition and gap—replace if worn
• Check harness connectors for corrosion or broken clips
• Tighten mounting bolts and confirm secure electrical connection

What part numbers and warranty information should I know?

This A-Premium coil lists multiple cross-reference numbers to help you confirm compatibility with your vehicle’s OEM part. A-Premium backs the product with a one-year unlimited-mileage guarantee for added confidence in durability and workmanship.

• Primary reference: 12568062; includes cross numbers such as 12570616, UF-303, COP44 and others
• Verify fit using VIN, engine code, or OEM part lookup before purchase
• A-Premium one-year unlimited-mileage guarantee included
• Sold as a single coil—purchase quantity according to your replacement needs

Who is this for? The A-Premium Engine Ignition Coil 12568062 is ideal for DIY mechanics, professional technicians and fleet owners working on mid-2000s GM and Isuzu-based vehicles who need a reliable, direct-fit ignition coil. If you’re troubleshooting misfires, rough idle, or an ignition-related fault code and your vehicle matches the listed fitments, this coil offers a cost-effective replacement backed by a one-year guarantee. Always confirm compatibility with your vehicle’s engine and OEM part numbers before installing.