Champion 121 - Copper Plus™ Spark Plug
$1007
Package Price for 4 Units
@ $2.52 per unit
In stock
limited availability at this price!
Pay over 3-12 months with 
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CHAMPION part description
Product Description
Copper Plus Spark Plug RV8C Carton of 4
Application Summary
Chevrolet Pass. Car: 6.6L V8 (70-70), 7.4L V8 (71-70); GMC Van: 6.6L V8 (71-71)
Features & Benefits
- Copper Plus - Dependable Performance and Durability
- Copper Plus - Dependable Performance.
- Copper core center electrode allows for accurate control of heat range for longer life
- Superior corrosion resistance
- Patented TinTac and ULTRASEAL coated shell for maximum corrosion resistance
- Built to ISO and SAE standards for proven performance
- Patented SAC-9 semiconductor resistor for maximum EMI & RFI suppression
Product Attributes
| Ground Electrode Core Material | Nickel |
| Washer Included | No |
| Electrical Terminal Type | Non-Removable Nut |
| Center Electrode Tip Material | Nickel |
| Pre-Gap Size | 0.040 IN |
| Ground Electrode Quantity | 1 |
| Hex Size | 0.625 IN |
| Manufacturer Heat Range | 8 |
| Seat Type | Tapered |
| Reach | 0.441 IN |
| Thread Diameter | 0.551 IN |
| Resistor Type | Yes |
| 9507 | Hex |
| 9746 | No |
| 9748 | 0.655 IN |
| Center Electrode Diameter (inch) | 0.1 IN |
| Classification | Champion Copper Plus |
| Ground Electrode Material | Nickel Copper Alloy |
| Installed Height (inch) | 2.02 IN |
| Part Description | Spark Plug |
| Plug Type | RV8C |
| Taper Diameter (inch) | 0.31 IN |
| Hex Size | 15.880 MM |
| Thread Diameter | 14.000 MM |
| Title | Champion Copper Plus- Boxed - RV8C |
| Ground Electrode Tip Material | Nickel |
| 9608 | Standard |
| Grade Type | Premium |
| Pre-Gap Size | 1.02 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 | 00037551000050 |
| VMRS Code | 033003005 |
Part Interchanges
- Champion Spark Plug RV8C
- DENSO T20RU
- Mopar 4339492
- ACDelco R42T
- ACDelco R43CT
- ACDelco R43T
- ACDelco MR43T
- ACDelco R42CT
- Motorcraft AF3
- Motorcraft AF3C
- Motorcraft ARF3
- Motorcraft ARF4
- Motorcraft ASF3C
- Motorcraft ASF4C
- Bosch 7968
- Bosch HR8A
- Bosch HR8AC
- Autolite 144
- Autolite 145
- Bosch 7568
- Bosch WA125TR4
- Bosch WA145TR4
- Champion Spark Plug BL8
- Champion Spark Plug RBL8
- Autolite 136
- NGK 2927
- NGK B6FS
- ACDelco 41821
- DENSO 5038
CHAMPION 121 Cross Reference
We have 3 alternatives for the 121 by CHAMPION:
Fits Vehicles
- GMC P35/P3500 Van (1971)
- GMC P25/P2500 Van (1971)
- GMC P15/P1500 Van (1971)
- Chevrolet P30 Van (1970)
- Chevrolet P20 Van (1970)
- Chevrolet El Camino (1970)
- GMC C5000 (1979)
- Chevrolet C50 (1971-1979)
- GMC P6000 (1983-1987, 1989-1990)
- Chevrolet P60 (1983-1990)
- Pontiac Strato-Chief (1970)
- Pontiac Parisienne (1970)
- Pontiac Laurentian (1970)
- Chevrolet Estate (1970)
- GMC B6000 (1980-1986)
- Chevrolet B60 (1980-1985)
- Iso Grifo (1970)
- Pontiac Acadian (1970-1971)
- Chevrolet C60 (1971-1979, 1984-1986, 1990)
- GMC C6000 (1979-1986, 1990)
- Chevrolet C70 (1979-1990)
- GMC C7000 (1979-1990)
- Chevrolet Townsman (1970)
- Chevrolet Nova (1970)
- Chevrolet Monte Carlo (1970)
- Chevrolet Kingswood (1970)
- Chevrolet Impala (1970)
- Chevrolet Corvette (1970)
- Chevrolet Chevelle (1970-1971)
- Chevrolet Caprice (1970)
- Chevrolet Camaro (1970)
- Chevrolet Brookwood (1970)
- Chevrolet Biscayne (1970)
- Chevrolet Bel Air (1970)
California Proposition 65 Warning
California Proposition 65 Warning
WARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information, go to www.P65Warnings.ca.gov. (Read more)
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