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AUTOLITE 421 Part Description
Manufacturer
Product Description
Autolite 421 Copper Resistor Spark Plug
Features & Benefits
- One-Piece terminal stud provides a reliable high voltage electrical connection
- The copper core center electrode aids in thermal control and improves resistance to fouling.
- High alumina multi-rib insulator helps prevent flash-over which can lead to misfires
- Its specially engineered high nickel alloy center and ground electrode provides extended life.
- Heat-fused glass composite resistor center seal provides high performance EMI noise suppression and a 100 percent leak-proof seal
- The high alumina multi-rib ceramic insulator provides thermal conductivity and superior insulation for increased strength.
- Solid copper core center electrode provides optimal thermal and electrical conductivity for better performance in all driving conditions
- Designed with a nickel-plated shell that is corrosion resistant to provide increased durability for extended periods.
- High nickel alloy side electrode resists electrical and chemical wear providing excellent durability
- 2 year limited warranty
AUTOLITE 421 Specifications
Product Attributes
| Resistance | 125 82 |
| Ground Electrode Tip Design | Tapered |
| Ground Electrode Core Material | Nickel |
| Electrical Terminal Type | Stud |
| Center Electrode Core Material | Copper |
| Center Electrode Tip Material | Nickel |
| Pre-Gap Size | 0.03 IN |
| Ground Electrode Quantity | 1 |
| Hex Size | 21 MM |
| Seat Type | Flat |
| Reach | 0.5 IN |
| Thread Diameter | 14 MM |
| Insulator Material | Ceramic |
| Resistor Type | Yes |
| Ground Electrode Tip Material | Nickel |
| Center Electrode Design | Standard |
| Center Electrode Projection | Short Projection |
| Hex Size | 13/16 IN |
| Pre-Gap Size | 0.8 MM |
Additional Information
| Country of Origin (Primary) | CN |
| Harmonized Tariff Code (Schedule B) | 8511100000 |
| Warranty Time | 2 |
| Warranty Time UOM | YR |
| UPC | 00009100266491 |
| UNSPSC | 26101732 |
AUTOLITE 421 Cross References
AUTOLITE 421 Fits Vehicles
- Yamaha XL700 WaveRunner XL700 (1999-2001)
- Yamaha SV1200 WaveRunner SUV1200 (1999-2004)
- Yamaha XL1200 WaveRunner XL1200 (1998)
- Yamaha GP1200 WaveRunner GP1200 (1997-1998)
- Wet Jet ZX (1997)
- Wet Jet Kraze (1995-1997)
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