High Performance Ignition Coils for Chevrolet Tahoe (2000-2006) 4.8L 5.3L

High-Output High Performance Ignition Coils for 2000-2006 Chevrolet Tahoe (GMT800 / Gen III Vortec)

Engineered to replace aging factory ignition coils, these high-performance replacements deliver a hotter, more consistent spark to eliminate misfires under heavy load, towing, or high-RPM operation.

The Stock Tahoe Ignition Weakness

The original equipment (OEM) ignition coils on the Gen III Vortec V8s are notorious for thermal degradation over time. Positioned directly above the exhaust manifolds, the stock epoxy potting dries out and cracks from continuous heat soak cycles. This leads to internal arcing, weak spark delivery, and parasitic voltage leaks. Under towing conditions or heavy throttle, this weak spark translates to noticeable hesitation, reduced fuel economy, and dreaded P0300-series random misfire codes.

The Engineering Solution

These high-performance ignition coils are constructed using upgraded magnetic steel cores and optimized copper wire windings to step up voltage output and maintain faster dwell recovery times. The housing is molded from high-dielectric epoxy and advanced thermal-resistant polymer, specifically formulated to withstand the extreme under-hood temperatures of the GMT800 engine bay. By providing a stronger, more complete combustion event, these coils optimize fuel burn, stabilize idle vacuum, and restore the low-end torque essential for moving heavy SUV chassis. The electronic blade-type terminals ensure a secure, corrosion-resistant connection to the factory wiring harness.

Technical Specifications

Compatibility

• 2000-2006 Chevrolet Tahoe 4.8L V8 (Round D585/UF262 Coil Style)
• 2000-2006 Chevrolet Tahoe 5.3L V8 (Round D585/UF262 Coil Style)

The Chevrolet Durability Standard

Built for the demanding environments that GMT800 trucks operate in, these ignition coils are designed to ensure the reliability needed for heavy towing and daily hauling without triggering annoying Check Engine Lights.

Common Questions

Will these ignition coils fit my 2000-2006 Chevrolet Tahoe?
Yes, these ignition coils are engineered for the 2000-2006 Chevrolet Tahoe equipped with the Gen III Vortec 4.8L (LR4) or 5.3L (LM7/L59) V8 engine using round D585 / UF262 coils.

Do these fit Tahoe models with square D581 / UF271 coils?
These coils are built specifically for the round Delco-style D585 / UF262 coil setup on the Gen III Vortec 4.8L and 5.3L V8 engines.

Which factory part numbers do these coils replace?
They directly replace part numbers D585, UF262, 10457730, 19005218, 920-1020, and GN10119.

How do these hold up against under-hood heat near the exhaust manifolds?
Each coil housing is molded from high-dielectric epoxy and thermal-resistant polymer specifically formulated to resist cracking, internal arcing, and heat soak in the GMT800 engine bay.

Do these connect directly to the factory wiring harness?
Yes, they feature OEM-style electronic blade terminals that plug directly into the factory wiring harness for a secure, corrosion-resistant connection.