Ignition Coil + Spark Plugs for Acura MDX (2001-2006) 3.5L

Direct-Fit Ignition Coil and Spark Plug Kit for 2001-2006 Acura MDX (YD1)

What it Does: The complete ignition kit replaces degraded factory coil packs and worn plugs on the 2001-2006 Acura MDX to restore core combustion efficiency, stabilize idle, and eliminate cylinder misfires.

The Stock Acura MDX Secondary Ignition Breakdown

Under continuous heat cycling within the transverse J35A3 and J35A5 engine bays, original equipment ignition boots and coil epoxy suffer severe dielectric breakdown. Over time, internal resistance increases within the factory coils, leading to high-voltage leakage, carbon tracking, and intermittent misfires (DTCs P0300 through P0306). Compounding this issue, standard factory plug electrodes experience electrical erosion that widens the spark gap beyond factory tolerance, placing elevated dielectric strain on the driver transistors and causing sluggish throttle response and poor fuel economy under load.

The Engineering Solution

This comprehensive service kit pairs six high-dielectric replacement coil packs with premium Denso platinum spark plugs. Engineered to match the exact inductance and dwell curve of OEM UF400 assemblies, the coils utilize high-grade copper windings and thermal shock-resistant potting epoxy to eliminate flashover and high-voltage arc breakdown. The Denso platinum spark plugs feature heat-resistant center electrodes designed to maintain a consistent gap over extended service intervals, ensuring rapid flame kernel propagation and clean combustion across the full VTEC powerband.

What's Included

• 6 High Performance Ignition Coils (Replacement for UF400)
• 6 Denso Platinum Spark Plugs

Technical Specifications

Compatibility

• 2001-2006 Acura MDX 3.5L V6 (All Trims)

Frequently Asked Questions & Fitment Warnings

Does this fit the YD1 MDX?

Yes, this is a direct fit for the 2001-2006 Acura MDX equipped with the 3.5L J35A3 or J35A5 engine.

Are external spark plug wires required for this installation?

No, the YD1 MDX features a direct Coil-on-Plug (COP) ignition setup, so high-tension secondary ignition wires are not required or included.

The Acura Reliability Caliber

Preserve the high-output refinement and smooth power delivery engineered into Honda's proven J-series architecture. Refurbishing the secondary ignition circuit with matched coils and platinum plugs guarantees stable combustion dynamics, reliable cold-start behavior, and total defense against ECU misfire flags under demanding throttle conditions.