NGK
Back to Maintenance: Spark Plugs

NGK Standard Spark Plug — BPR6HS-10

Part # 2633
Item #BPR6HS-10
Discontinued. This part won't be restocked. We're selling the remaining stock, once it's gone, it's gone.
Fits 2 motorcycles
  • Harley-Davidson
    • XLH1000 Sportster · 1979-1985
  • Yamaha
    • SH50 · 1987-1996
$4.99
/
Shipping calculated at checkout.
  • In stock, ready to ship
  • Backordered, shipping soon
  • Flat $10 U.S. shipping, free over $100
  • Ships from one of three U.S. warehouses
  • Secure checkout
NGK Standard Spark Plug — BPR6HS-10
NGK Standard Spark Plug — BPR6HS-10
NGK Standard Spark Plug — BPR6HS-10
NGK Standard Spark Plug — BPR6HS-10
Product Details

Standard nickel-alloy spark plug from NGK — the same plug type the original manufacturer specifies for most factory-fit applications.

  • Nickel-alloy center electrode with a copper core for stable heat range and reliable firing across the rev range.
  • Trivalent-metal thread plating resists seizing and corrosion.
  • Heat range and reach match the OEM plug — direct fitment, no jetting changes required.
  • Gap is preset at the factory to NGK's reference; verify against the service manual before fitting.
  • The economical baseline maintenance plug. Step up to Iridium IX or Laser Platinum if you want longer service intervals.

Spec: BPR6HS-10

Fitment

  • Harley-Davidson XL 1000 1979–1985
  • Harley-Davidson XLCH 1000 1979–2026
  • Harley-Davidson XLH 1000 1979–2026
  • Yamaha SH 50 1984–1996
  • Yamaha SH 50 F 1984–1996

Specifications

The NGK 2633 is a spark plug verified to fit 2 motorcycles including Harley-Davidson XLH1000 Sportster; Yamaha SH50. It matches an OE spark plug gap 1 mm.

Electrode MaterialNickel-alloy
Electrode Core MaterialCopper
Thread PlatingTrivalent-metal
Spark Plug Gap1 mm

Verified from Garamoto’s catalog & fitment data.

You may also like