NGK Spark Plug - #2115/04 — Harley-Davidson Electra Glide Classic, Softail Custom, Softail Heritage Classic (1984-1999)

NGK spark plug #2115 (BPR5EIX-11) for V-twin motorcycles including Harley-Davidson and Indian models. Direct OEM replacement built to factory ignition specs for reliable cold starts and consistent combustion.

Features

• OEM replacement for V-twin engines
• Cross-compatible with ILKR8Q7 and BPR8ES-S
• Standard 3.2 in reach

Specifications

• Brand: NGK
• Manufacturer Part #: 2115
• Part Number: BPR5EIX-11
• UPC: 087295121153
• Length: 3.2 in
• Width: 1 in
• Height: 0.7 in
• Weight: 0.15 lbs

Fitment

Fits V-twin motorcycles including Harley-Davidson and Indian Motorcycle models.

Frequently Asked Questions

Will this plug work in place of ILKR8Q or BPR8ES-S?

Yes — ILKR8Q7 can replace ILKR8Q, and BPR5EIX-11 can replace BPR8ES-S. Check your owner's manual to confirm your original plug type.

How do I know if I need a new spark plug?

Replace plugs every 10,000 miles or if you notice hard starts, rough idle, or poor fuel economy.

What's the correct gap setting for this plug?

Consult your motorcycle's service manual for the exact gap specification — incorrect gapping can affect performance.