Kawasaki ZX550-A Spark Plug
The Kawasaki ZX550-A (550cc) takes an NGK DR9EA spark plug, gapped to 0.028".
Key takeaways
- Spark plug: NGK DR9EA.
- Iridium upgrade: NGK DR9EIX.
- Gap: 0.028 inch - set it before fitting.
- Covers 1990-1991.
Buy the plugs for your Kawasaki ZX550-A
The standard plug is the exact-fit replacement. The iridium version drops into the same spot, lasts longer, and fires a little stronger for a few dollars more. Many engines take more than one - check how many cylinders you have.
As an Amazon Associate we earn from qualifying purchases, at no extra cost to you.
Frequently asked
What spark plug does a Kawasaki ZX550-A take?
The Kawasaki ZX550-A takes an NGK DR9EA spark plug, gapped to 0.028 inch. The iridium upgrade is the DR9EIX.
What is the spark plug gap for a Kawasaki ZX550-A?
The spark plug gap for the Kawasaki ZX550-A is 0.028 inch. Check and set the gap before fitting a new plug - most powersports plugs need a small adjustment out of the box.
Can I use an iridium plug in a Kawasaki ZX550-A?
Yes. The DR9EIX is the iridium version of the DR9EA - same fit, longer life, and a slightly stronger spark. It is a straight upgrade.
More parts for your Kawasaki ZX550-A
We cover the other consumables for your machine too - the exact fit, cited, in one place.