ECCPP UF742 Ignition Coil Compatible for GMC V8 4.3L 5.3L

This single-pack ignition coil from ECCPP is engineered to match OE form, fit and function for a wide range of GM vehicles and compatible Isuzu models. Built with heat- and vibration-resistant materials and supplied as one unit, the UF742 is offered to replace worn or failed coils without extensive modification. The unit corresponds to OE numbers such as UF-742, C866 and several GM part numbers, making it a practical spare or one-for-one replacement when diagnosing rough idle, misfires, or poor drivability tied to coil failures.

What vehicles does the ECCPP UF742 ignition coil fit?

The UF742 is intended for many GM V8 applications across model years roughly from 2014 through 2022, including pickups, SUVs, vans and select commercial trucks. Check your vehicle’s engine size and coil style (round-style coil for listed Isuzu models) before purchase.

• Compatible makes: Chevrolet, GMC, Cadillac, Isuzu (selected models)
• Common models: Silverado 1500/2500/3500, Sierra 1500/2500/3500, Tahoe, Suburban, Yukon, Escalade, Camaro, Express, Savana
• Engine compatibility: V8 4.3L, 5.3L, 6.2L (round-style coil where specified)
• Model years covered: primary fitment 2014–2022 depending on vehicle

How does this coil match original equipment and why does that matter?

The ECCPP UF742 carries equivalent OE references and is manufactured to replicate the physical connections, mounting points and electrical characteristics of the original part. Using a like-for-like coil minimizes installation adjustments and helps preserve ignition timing and spark characteristics set by the engine management system.

• OE reference numbers included (UF-742, C866, 12621750, etc.) for quick cross-checking
• Same plug-and-play connectors and mounting dimensions as factory units
• Designed to maintain consistent electrical output to factory spark plugs
• Reduces the need for ECU or wiring modifications when replacing a failed coil

What are the build quality and durability features?

ECCPP builds the UF742 from materials selected to withstand under-hood conditions such as elevated temperatures, vibration and exposure to oil or contaminants. The coil undergoes quality checks to help deliver stable operation during regular vehicle use.

• High-temperature resistant housing for thermal stability
• Vibration-tolerant internal components to resist cracking or electrical failure
• Sealed electrical connections to deter moisture intrusion
• Supplied as one coil for straightforward replacement and spare inventory

How easy is the ECCPP UF742 to install and what support is available?

Installation is intended to be simple for mechanically inclined owners or technicians: remove the old coil, plug in the new unit and bolt it in place. ECCPP provides one year of after-sales support if you encounter fitment or installation issues.

• Comes as a single ignition coil assembly for direct replacement
• Basic hand tools required—no special programming needed for standard swaps
• One year of after-sales service from ECCPP for installation help
• Keep original OE numbers handy to confirm exact fit before ordering

Who is this for: Owners, fleet managers and independent technicians who need a reliable, OE-referenced ignition coil for GM V8 engines (4.3L, 5.3L, 6.2L) — ideal when diagnosing misfires, restoring engine smoothness or stocking replacement parts. If you require an exact-match single coil that mirrors factory connections and fits the specified model years, the ECCPP UF742 provides a straightforward, cost-effective option.