Ignition Coil and Iridium Spark Plugs for Honda Ridgeline (2017-2020) 3.5L

Direct-Replacement Ignition Coil and Iridium Spark Plug Kit for 2017-2020 Honda Ridgeline

What it Does: The ignition coil and iridium spark plug kit replaces aged ignition components on the 2017-2020 Honda Ridgeline to eliminate cylinder misfires, restore fuel economy, and stabilize idle quality.

The Stock Honda Ridgeline Thermal Breakdown Problem

The factory coil-on-plug modules in the direct-injected J35Y6 3.5L V6 endure intense thermal cycling inside recessed cylinder head spark plug tubes. Over sustained mileage, OEM coil boot silicone hardens and fractures, leading to dielectric breakdown and secondary voltage flashover against the head wall. Concurrently, factory spark plugs suffer center electrode erosion and gap enlargement, forcing the coil packs to generate higher discharge voltages. This excessive resistance overheats the internal primary and secondary copper windings, triggering intermittent hesitation, catalytic converter-damaging unburnt fuel wash, and typical DTC codes P0300 through P0306 under heavy acceleration or towing loads.

The Engineering Solution

This complete 6-cylinder service kit pairs heavy-duty pencil ignition coils with fine-wire iridium spark plugs to restore factory-calibrated ignition reserve. Each coil pack features vacuum-potted epoxy insulation and high-permeability magnetic cores that resist thermal shock and internal arcing. High-grade fluorosilicone boots insulate against corona discharge and repel engine oil contamination. Paired with laser-welded 0.6mm fine-wire iridium center electrodes, this package minimizes spark quench, lowers the required ionization voltage, and ensures consistent flame front propagation through the high-compression combustion chambers.

Technical Specifications

Compatibility

• 2017-2020 Honda Ridgeline RT 3.5L V6
• 2017-2020 Honda Ridgeline RTS 3.5L V6
• 2017-2020 Honda Ridgeline Sport 3.5L V6
• 2017-2020 Honda Ridgeline RTL 3.5L V6
• 2017-2020 Honda Ridgeline RTL-T 3.5L V6
• 2017-2020 Honda Ridgeline RTL-E 3.5L V6
• 2017-2020 Honda Ridgeline Black Edition 3.5L V6

Frequently Asked Questions

Does this fit the YK2/YK3 Ridgeline?
Yes, this is a direct fit for the 2017-2020 Honda Ridgeline equipped with the J35Y6 engine.

Are the iridium spark plugs pre-gapped for the 3.5L V6?
Yes, these plugs arrive pre-gapped to factory 0.044-inch specifications for direct bolt-in installation without manual adjustment.

The Honda Truck Durability Standard

Engineered to handle severe duty cycles, continuous payload hauling, and maximum towing capacities, this ignition kit maintains combustion stability across all cylinders to preserve torque output and prevent Variable Cylinder Management shudder on your YK2/YK3 chassis.