Replacement NGK Spark Plugs for 1999+ Harley Davidsons
Description
NGK 3932 spark plugs are a great choice for your Harley Twin Cam or Sportster and are the OE-replacement for the stock 6R12 factory plug.
- Engineered to exceed OE designs
- Maximum durability and dependable performance
- Fits Twin Cam, all models & Sportster all models 1986/Later. Replaces HD 6R12, Harley 32317-86A
Features & Benefits
Ask for NGK Standard spark plugs, OE approved and recommended for reliable performance for most automotive and non-automotive applications. NGK Standard spark plugs feature a 5-Rib insulator design to prevent flashover and are also treated with corrosion-resistant plating to ensure ease of installation and removal.
- Cold rolled threads – prevents damage to cylinder head
- Triple gasket sealing process – virtually eliminates gas leakage past the shell
- Solid Copper Core - provides superior heat dissipation, conductivity and a broader heat range
- Trivalent Plating – three step plating process utilizing silver chromate and zinc ensures maximum corrosion resistance
Product Details
| Part Number: | 3932 |
| Weight: | 0.10lbs |
| Center Electrode Core Material: | Copper |
| Center Electrode Design: | Standard / Regular |
| Center Electrode Tip Material: | Nickel |
| Drive Size: | 5/8 in |
| Gap - Factory Preset: | 0.8 mm = 0.032 in |
| Ground Electrode Configuration: | Single |
| Ground Electrode Tip Material: | Nickel Alloy |
| Insulator Material: | Ceramic |
| Insulator Type: | Projected |
| Manufacturer Heat Range Number: | 7 |
| Reach (in): | 0.75 |
| Resistor: | Yes |
| Seat Style: | Gasket |
| Short Style: | No |
| Thread Size: | 12 mm |
| Shipping Information: | Free |
Spark plugs sold in pairs (2).
Fitment:
| Twin Cam 88 | 1999-present |
| XL Sportster 883/1200 | 1986-present |