Honda TRX250R Spark Plug
GarageDex's powersports data shows the Honda TRX250R uses a BPR7EIX spark plug, gapped to 0.032". Spark plug fitment varies by year - see the table for each range.
Spark plug fitment by year
| Years | Standard plug | Iridium upgrade | Gap |
|---|---|---|---|
| 2009 | BPR7EIX | - | 0.032" |
| 1993-2008 | BR9EIX | - | 0.028" |
| 1988-2000 | DPR8EA-9 | BR8EIX | 0.036" |
250cc atv. Match the exact part code, thread reach, and heat range. The iridium column is the same-fit upgrade for a longer service life.
Spark plugs for your Honda TRX250R
The recommended plug is a BPR7EIX. Match that code - spark plugs are thread-, reach-, and heat-range-specific, so the part number matters more than the brand. Gap it to spec before it goes in and you're done.
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Frequently asked
What spark plug does a Honda TRX250R take?
GarageDex's powersports data shows the Honda TRX250R uses a BPR7EIX spark plug, gapped to 0.032". Spark plug fitment varies by year - see the table for each range.
What is the spark plug gap on a Honda TRX250R?
The Honda TRX250R spark plug gap is 0.032". Set the gap with a feeler gauge before install - iridium plugs come pre-gapped but always verify, since a wrong gap causes misfires and hard starts.
Does the Honda TRX250R spark plug change by year?
Yes - the fitment differs across the years we cover: 2009 uses BPR7EIX; 1993-2008 uses BR9EIX; 1988-2000 uses DPR8EA-9. Match your exact year in the table.
How often should I change the spark plugs on a atv?
Standard plugs typically want replacing every 8,000-12,000 miles (or per your service manual); iridium plugs go much longer. Fouled or worn plugs cause hard starts, misfires, and poor fuel economy - a cheap part that punches above its weight.