Suzuki LT-Z400 Spark Plug
The Suzuki LT-Z400 (400cc) takes an NGK CR8E spark plug, gapped to 0.032".
Key takeaways
- Spark plug: NGK CR8E.
- Iridium upgrade: NGK CR8EIX.
- Gap: 0.032 inch - set it before fitting.
- Covers 2003-2005 (plug changed across years - see table).
Buy the plugs for your Suzuki LT-Z400
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.
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Suzuki LT-Z400 spark plugs by year
| Years | Standard | Iridium | Gap |
|---|---|---|---|
| 2003-2005 | CR8E | CR8EIX | 0.032" |
| 2003 | CR7E | CR7EIX | 0.028" |
Frequently asked
What spark plug does a Suzuki LT-Z400 take?
The Suzuki LT-Z400 takes an NGK CR8E spark plug, gapped to 0.032 inch. The iridium upgrade is the CR8EIX. See the by-year table for earlier models.
What is the spark plug gap for a Suzuki LT-Z400?
The spark plug gap for the Suzuki LT-Z400 is 0.032 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 Suzuki LT-Z400?
Yes. The CR8EIX is the iridium version of the CR8E - same fit, longer life, and a slightly stronger spark. It is a straight upgrade.
More parts for your Suzuki LT-Z400
We cover the other consumables for your machine too - the exact fit, cited, in one place.