NGK Spark Plug Wires Civic Si Integra

NGK Spark Plug Wires Civic Si Integra

Your 1999-2000 Civic Si uses four spark plug wires from the distributor to the plugs. When the jackets crack or the boots harden, the miss follows the wire, and this is the ngk spark plug wires set cut for the B16A2. The same 7 mm set also covers a del Sol VTEC and an Integra GS-R or Type R.

NGK 8018 is the HE64 set. One box, four blue 7 mm spark plug wires, straight silicone boots. No coil lead, because the coil lives on the distributor. This SKU is one set, not a single wire.

What It Is and Why It Works

We like this set because NGK kept the OE boot shape and the factory routing instead of an 8.5 mm race jacket that fights the valve cover. Factory Honda carbon-core wires climb in resistance once the jacket cracks. NGK builds 8018 as a 7 mm ferrite set with a variable-pitch magnetic core, a blue silicone jacket they rate to 250 C (482 F), stainless terminals, and a silicone seal at the plug boot.

This is a 7 mm stock-replacement set with the OE boot shape and factory routing. Honda counters bag 32722-P2T-405 on the 1999-2000 Civic Si and the 1996-1997 del Sol VTEC. Integra GS-R 1996-2001 is 32722-P72-405. Four straight silicone boots. No coil lead.

Specs

Fitment

Distributor cars only. Pull a wire: 7 mm blue cable, straight boot on the plug, the other end into the cap. A del Sol S or Si is a D-series car and is not this number. There is no 2001 US Civic Si. There is no 1999 US Integra Type R. A 2002-2005 Civic Si (EP3, K20A3) is coil-on-plug and does not use wires. Same for 2006-and-up Si. Integra LS, RS, and GS run a B18B and take a different set. A first-gen Integra (1986-1991) is not this page. A 2023-and-up Integra is coil-on-plug. If you're not sure, count the wires on the cap and read the valve cover. B16 / B17 / B18C is this set. D16 or B18B is not.

What to Know Before You Buy

Label the towers on the cap before you pull anything. These engines fire 1-3-4-2, and a crossed wire will not start or will idle like it is on three. Pull one wire at a time. Twist the boot, don't yank the cable. A torn boot left on the plug is a common way to ruin a fresh set. Seat each new boot until it clicks on the plug and on the cap. A dab of dielectric grease inside the boot helps it seal and come off next time. Route the new wires in the factory clips so they don't sit on the exhaust manifold or the valve cover edge.

Look at the cap and rotor while the wires are off. The 90s Honda cap carbons up and the rotor burns a pit in the brass. Fresh wires on a toasted cap will still miss. If the miss stays on the same cylinder after you swap two wires, look at the plug and that tower, not the new set. Use the plug Honda spec'd for that engine. Don't gap a hotter plug to make up for tired wires. The coil is on the distributor. There is no separate coil lead in this box.

Cracked, oil-soaked, or hard boots are why you're here. This is a 7 mm stock-replacement set, so it will not change how the car idles once the miss is gone. It will not replace a COP coil on a K-series. If the valve cover says D16, stop. If it says B16, B17, or B18C and the distributor still has four towers, this is the set.