MAS Ignition Coils UF303 2.8L L4 Replacement Set of 4 for 2004-2006 Chevy Colorado GMC Canyon — Direct-Fit, OE Cross-Reference

MAS Ignition Coils UF303 (set of 4) are direct-fit replacement coils engineered to restore ignition performance on 2004–2006 Chevy Colorado, 2004–2006 GMC Canyon 2.8L and 2006 Isuzu i-280 2.8L engines.

These MAS ignition coils are designed as a like-for-like replacement for factory units, matching the electrical and mounting specifications listed for OE part numbers such as UF-303, IC414 and related cross-references. Sold as a set of four, the coils arrive ready to swap in without modification and include a 1-year limited warranty for added confidence. The product targets owners and technicians who need reliable coil replacements that fit specific 2.8L L4 applications from the mid-2000s.

Will these coils physically fit my 2004–2006 Chevy Colorado or GMC Canyon?

Yes. MAS engineered the UF303 coils to meet the fitment and connector layout used on the 2.8L L4 model years you specified. They replicate mounting bosses, terminal spacing and boot length so installation follows the original routing.

• Direct fit for 2004–2006 Chevy Colorado 2.8L L4
• Direct fit for 2004–2006 GMC Canyon 2.8L L4
• Compatible with 2006 Isuzu i-280 2.8L L4
• Matches OE connector style and bolt pattern

How do these replacement coils match the original equipment specifications?

MAS UF303 coils list multiple OE cross-reference numbers to ensure electrical compatibility with original systems. The coils are built to meet the required primary and secondary winding characteristics and include the same style plug boots used by the factory parts.

• Cross-references include UF-303, IC414 and 12568062 among others
• Designed to meet factory electrical and mechanical dimensions
• Pre-formed boots for correct spark plug engagement

What comes in the box and what warranty is included?

The package contains a set of four MAS ignition coils, ready for immediate installation. MAS backs this coil set with a 1-year limited warranty that covers manufacturing defects—check warranty terms for exclusions and installation guidance.

• Includes 4 MAS ignition coils (complete set)
• 1-year limited warranty from date of purchase
• Sold as a full-bank replacement for L4 engines

How should I prepare for installation and what maintenance tips help longevity?

Before replacing coils, inspect spark plugs, plug wires (if applicable) and the ignition connector for corrosion or oil contamination. Tighten mounting bolts to the manufacturer’s torque specification and ensure connectors click fully into place.

• Replace spark plugs if they show wear or incorrect gap
• Clean or replace corroded connectors and seals
• Verify mounting torque and connector engagement during installation

Who is this for: This MAS UF303 ignition coil set is intended for owners, fleet managers and independent mechanics working on 2004–2006 Chevy Colorado or GMC Canyon trucks with the 2.8L inline-4, and for technicians repairing 2006 Isuzu i-280 vehicles. It’s a practical choice when you need factory-style replacement coils in a complete set with clear OE cross-references and a one-year limited warranty.