NGK Spark Plug - #2633/10 — Harley-Davidson Sportster 1000, 1000 Roadster, Sportster Sixty One 1000 (1980-1985)

NGK spark plug #2633 (BPR6HS) for V-twin motorcycles, engineered for reliable ignition in Harley-Davidson and Indian models. Genuine OEM-equivalent part distributed by Western Power Sports.

Features

• BPR6HS standard heat range
• ILKR8Q7 compatible alternative
• BPR8ES compatible alternative
• Made in Japan

Specifications

• Brand: NGK
• Manufacturer Part #: 2633
• UPC: 087295126332
• Plug Type: BPR6HS
• Length: 3.1 in
• Width: 0.8 in
• Height: 0.6 in
• Weight: 0.1 lbs
• Country of Origin: Japan

Fitment

Fits V-twin motorcycles including Harley-Davidson and Indian Motorcycle models. Cross-reference with your owner's manual to confirm proper heat range for your engine.

Frequently Asked Questions

What motorcycle models use the NGK BPR6HS spark plug?

This plug fits many V-twin models from Harley-Davidson and Indian. Always verify the part number in your owner's manual or service documentation before installing.

Can I use ILKR8Q7 or BPR8ES in place of this plug?

ILKR8Q7 can be substituted for ILKR8Q, and BPR8ES can replace BPR8ES-S. Cross-check your bike's spec sheet to confirm compatibility with this BPR6HS.

How often should I replace my spark plugs?

NGK plugs typically last 10,000–30,000 miles depending on riding conditions and engine tuning. Check your service manual for your bike's recommended interval.