Champion 538 - Copper Plus™ Spark Plug - Small Engine
$367
MSRP: $5.34
Save: $1.67
In stock
limited availability at this price!
Pay over 3-12 months with
. Learn more
CHAMPION part description
Product Description
Copper Plus Small Engine Spark Plug RH8C Carton of 4
Application Summary
INDUSTRIAL, POWERSPORT, SMALL ENGINE, TRACTOR, VINTAGE
Features & Benefits
- Copper Plus - Dependable Performance and Durability
- OE type replacement plug
- Resists fouling
- Dependable and proven performance
- Copper core center electrode allows for accurate control of heat range for longer life
- Increased conductivity and heat control for good overall wear
- Superior corrosion resistance
- Built to ISO and SAE standards for proven performance
Product Attributes
Ground Electrode Core Material | Nickel |
Washer Included | Yes |
Electrical Terminal Type | Removable Nut |
Center Electrode Tip Material | Copper |
Pre-Gap Size | 0.025 IN |
Ground Electrode Quantity | 1 |
Hex Size | 0.813 IN |
Manufacturer Heat Range | 8 |
Seat Type | Flat |
Reach | 0.438 IN |
Thread Diameter | 0.551 IN |
Resistor Type | Yes |
9507 | Hex |
9745 | Crush |
9746 | No |
Center Electrode Diameter (inch) | 0.1 IN |
Classification | Champion Copper Plus Small Engine |
Ground Electrode Material | Nickel Copper Alloy |
Installed Height (inch) | 2.24 IN |
Part Description | Spark Plug |
Plug Type | RH8C |
Taper Diameter (inch) | 0.31 IN |
Hex Size | 20.650 MM |
Thread Diameter | 14.000 MM |
Title | Champion Copper Plus Small Engine- Boxed - RH8C |
Ground Electrode Tip Material | Nickel |
9608 | Standard |
Grade Type | Premium |
Pre-Gap Size | 0.64 MM |
Subject To Prop 65 (yes/no) | No |
Additional Information
Country of Origin (Primary) | MX |
Harmonized Tariff Code (Schedule B) | 8511100000 |
Harmonized Tariff Code (HTS) | 8511100000 |
Refurbished Part | N |
Remanufactured Part | N |
UPC | 00037551001071 |
VMRS Code | 033003005 |
Part Interchanges
Fits Vehicles
- Harley-Davidson XLR (1959-1960)
- Harley-Davidson XLCH (1958-1971)
- Harley-Davidson XLRTT (1958-1964)
- Harley-Davidson XLH900 (1958-1970)
- Harley-Davidson XLC (1958)
- Harley-Davidson XL (1957-1959)
- Harley-Davidson KHRTT (1955-1957)
- Harley-Davidson KH (1955-1956)
- Harley-Davidson KHK (1955-1956)
- Panhard Dyna (1954-1955)
- Hudson Hornet (1951)
- Hudson Commodore Series (1951-1952)
- Hudson Wasp (1952)

Don't know your part number?
Take a photo and we'll identify it!