PRODUCT DETAILS
These are the NGK spark plug wires for your 88-91 Civic or CRX, the four cables that run from the distributor cap down to the plugs. When the old set cracks, the boots harden, or a cold morning start gets sloppy, this is the replacement that matches Honda's lengths.
NGK builds this set with a variable-pitch magnetic core and a 7 mm silicone jacket that can take 250 C under the valve cover. Stainless terminals and a silicone seal at each boot keep the spark in the wire, even on a damp morning.
What It Is and Why It Works
Stock 9988 is a four-wire set. No coil lead in the box, because the coil lives on the distributor. Factory carbon-core cables climb in resistance as they age. NGK's ferrite core stays more consistent, so you get a cleaner fire without going to a thick race jacket you do not need on a street Civic.
If the wires are cracked, the boots are hard, or a miss moves when you swap two leads, this is the set. Fresh wires will not fix a toasted cap or rotor, so look at those while you are in there.
Specs
| NGK stock / type | 9988 / HE53 |
| SKU | NGK-9988 |
| Jacket | Silicone, blue, 7 mm OD, rated 250 C, per NGK |
| Core | Magnetic, variable pitch, ferrite, per NGK |
| Boots | 4 straight silicone, 180 degrees. 0 angled, per NGK |
| Contents | 4 spark plug wires. No coil lead, no cap, no rotor, no plugs. |
| Honda factory wires | 32722-PM3-010. Alternate 32722-PM5-405. |
| Warranty | Limited lifetime defect warranty, per NGK |
Fitment
| Year | Make | Model |
| 1988-1991 | Honda | Civic |
| 1988-1991 | Honda | CRX |
A 1984-1987 Civic or CRX is a different set.
What to Know Before You Buy
Label the towers before you pull anything, then replace one wire at a time. Twist the boot, do not yank the cable. Seat each new end until it clicks on the plug and on the cap, and route the leads back through the factory clips so they stay off the manifold.
Fits 1988-1991 Civic and CRX in our catalog. A 1984-1987 Civic or CRX is a different set.
| NGK type | HE53 |
| Stock number | 9988 |
| Jacket | Silicone, blue, 7 mm OD, 250 C / 482 F, per official NGK USA |
| Core | Magnetic, variable pitch, ferrite over fiberglass, per official NGK USA |
| Boots | 4 straight silicone, 180 degrees. 0 angled. Silicone seal at plug boot, per NGK |
| Terminals | Stainless steel, per NGK |
| Coil lead | Not required / not in the box (coil on distributor) |
| Official line | https://ngksparkplugs.com/en/products/ignition-parts/wire-sets |
| Official install | https://ngksparkplugs.com/en/resources/wire-sets-installation |
4 spark plug wires, numbered. No coil lead. No distributor cap. No rotor. No spark plugs. No dielectric grease.