Honda TRX350FM Rancher 4x4 Spark Plug
The Honda TRX350FM Rancher 4x4 (350cc) takes an NGK DPR8Z spark plug, gapped to 0.036".
Key takeaways
- Spark plug: NGK DPR8Z.
- Iridium upgrade: NGK DPR7EIX-9.
- Gap: 0.036 inch - set it before fitting.
- Covers 1999-2000.
Buy the plugs for your Honda TRX350FM Rancher 4x4
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 Honda TRX350FM Rancher 4x4 take?
The Honda TRX350FM Rancher 4x4 takes an NGK DPR8Z spark plug, gapped to 0.036 inch. The iridium upgrade is the DPR7EIX-9.
What is the spark plug gap for a Honda TRX350FM Rancher 4x4?
The spark plug gap for the Honda TRX350FM Rancher 4x4 is 0.036 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 Honda TRX350FM Rancher 4x4?
Yes. The DPR7EIX-9 is the iridium version of the DPR8Z - same fit, longer life, and a slightly stronger spark. It is a straight upgrade.
More parts for your Honda TRX350FM Rancher 4x4
We cover the other consumables for your machine too - the exact fit, cited, in one place.