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CHAMPION 31
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$0.59
Price
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$0.00
Core
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+ Sold in packs of 1x1
Pack
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$0.59
Total
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| CHAMPION 31 Specifications |
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| Center Electrode Tip Material | Nickel | | Electrical Terminal Type | Non-Removable Nut | | Ground Electrode Core Material | Nickel | | Ground Electrode Quantity | 1 | | Hex Size (IN) | 0.813 | | Hex Size (MM) | 20.650 | | Hex Type | Hex | | Indexed | No | | Insulator Height (in) | 0.12 | | Manufacturer Heat Range | 14 | | Plug Type | RN14MC5 | | Pre-Gap Size (IN) | 0.050 | | Pre-Gap Size (MM) | 1.28 | | Reach (IN) | 0.75 | | Resistor Type | Yes | | Seat Type | Flat | | Thread Diameter (IN) | 0.551 | | Thread Diameter (MM) | 14.000 | | Washer Included | Yes | | Washer Type | Crush |
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| Copper Plus; Pre-Set Gap: 0.05" |
Champion Copper Plus spark plugs have been original equipment on a wide variety of engines for many years. These plugs have nickel alloy centers and ground electrodes, with reasonably good wear characteristics. In addition, the extrusion of copper into the center electrode allows for increased conductivity and heat control.
Features & Benefits:- Dependable and durable
- Built to ISO and SAE standards for proven performance
- Patented SAC-9 semi-conductor resistor for maximum EMI & RFI suppression
- Copper core center electrode allows for accurate control of heat range for longer life
- TinTac® and ULTRASEAL shell for best corrosion protection of any spark plug in the industry
This spark plug is pre-gapped, but may require minor adjustments with a Spark Plug Gap Tool / Feeler Gauge to match your engine's specifications. For proper engine performance, gaps should be within ±0.004" of OE-Recommended value.  Which CHAMPION Spark Plug Is Right For You?
| Material / Series |
Lifespan / Durability |
Performance / Ignitability |
Efficiency / Fuel Economy |
Copper / Nickel Plus
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★ |
★ |
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Platinum Power
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★★ |
★★★★ |
★ |
Double Platinum
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★★★★ |
★★★★ |
★ |
Iridium
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★★★ |
★★★★★ |
★★ |
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| OEM / Interchange Numbers: 646, 646BP, APP646 |
Closeout Inventory Warranty Information:Wholesaler Closeout items have a 30 day warranty (but still are covered by our Return Policy).CHAMPION Regular Inventory Warranty Information:Iridium plugs 7 years - Double Platinum Power 5 years - Platinum Power 3 years - Copper Plus 2 years |
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