Description
The Champion 7983 Double Platinum Power Spark Plug is a premium standard replacement spark plug engineered for long service life, dependable ignition performance, and stable operation under demanding engine loads. Featuring a platinum fine-wire center electrode and platinum pad ground electrode, this plug is designed to improve ignitability, resist wear, and maintain sharper spark focus in both automotive and marine applications.
Champion’s Heat-Active alloy helps the electrodes reach and maintain optimal operating temperature, supporting reliable combustion and consistent performance over extended service intervals. With a tapered seat, 14 mm thread diameter, 0.689 in reach, and factory-set 1.27 mm (0.050 in) gap, this plug is built for secure OEM-style replacement in compatible engines.
As part of the Champion Double Platinum Power lineup, the Champion 7983 spark plug fits a wide range of Buick, Chevrolet, GMC, Isuzu, Oldsmobile, Pontiac, Workhorse, Blue Bird, Avanti, Volvo Penta, Mercruiser, Marine Power, Indmar, and Kodiak applications. It is a dependable replacement choice for maintaining ignition performance in passenger cars, heavy-duty trucks, buses, commercial chassis, and marine powerplants.
Features
- Premium double platinum spark plug for extended service life
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Platinum fine-wire center electrode for greater ignitability
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Platinum pad ground electrode for improved wear resistance
- Maintains stable operating temperature under all engine loads
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Heat-Active alloy helps electrodes reach optimal operating temperature
- Sharp spark focus for dependable combustion performance
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Pre-gapped: 1.27 mm (0.050 in)
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Plug Type: RS14PMPB5
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Thread Diameter: 14.000 mm / 0.551 in
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Reach: 0.689 in
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Seat Type: Tapered
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Hex Size: 15.880 mm / 0.625 in
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Resistor Type: Yes
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Ground Electrode Quantity: 1
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Insulator Height: 0.12 in
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Manufacturer Heat Range: 14
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Center Electrode Design: Fine Wire
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Ground Electrode Core Material: Platinum
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Ground Electrode Tip Material: Platinum
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Ground Electrode Material: Platinum Pad Surface
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Electrical Terminal Type: Non-Removable Nut
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Center Electrode Diameter: 0.1 in
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Installed Height: 2.05 in
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Insulator Projection: 0.12 in
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Taper Diameter: 0.25 in
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Classification: Champion Double Platinum Power
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Grade Type: Standard Replacement
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Washer Included: No
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Indexed: No
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Prop 65: No
Vehicle Fitment
Avanti
Blue Bird
- Vision School Bus (2009–2013) – 8.1L V8
Buick
- Lucerne (2009–2011) – 3.9L V6
- Terraza (2006–2007) – 3.9L V6
Chevrolet
- Avalanche 2500 (2002–2006) – 8.1L V8
- B7 (1999–2000) – 7.4L V8
- B7 (2001–2002) – 8.1L V8
- Beretta (1994–1995) – 3.1L V6
- C2500 (1996–2000) – 7.4L V8
- C2500 Suburban (1996–1999) – 7.4L V8
- C3500 (1996–2000) – 7.4L V8
- C3500HD (1996–2000) – 7.4L V8
- C3500HD (2001–2002) – 8.1L V8
- C4500 Kodiak (2003–2009) – 8.1L V8
- C5500 Kodiak (2003–2009) – 8.1L V8
- C6500 Kodiak (1999–2000) – 7.4L V8
- C6500 Kodiak (2001–2009) – 8.1L V8
- C7500 Kodiak (1999–2000) – 7.4L V8
- C7500 Kodiak (2001–2009) – 8.1L V8
- C8500 (2003–2009) – 8.1L V8
- Camaro (1993–2002) – 5.7L V8
- Corvette (1996–2003) – 5.7L V8
- Express 3500 (1996–2000) – 7.4L V8
- Express 3500 (2001–2002) – 8.1L V8
- Impala (2006–2011) – 3.5L V6
- Impala (2006–2011) – 3.9L V6
- K2500 (1996–2000) – 7.4L V8
- K2500 Suburban (1996–1999) – 7.4L V8
- K3500 (1996–2000) – 7.4L V8
- Malibu (2006–2007) – 3.9L V6
- Monte Carlo (1995) – 3.1L V6
- Monte Carlo (2006–2007) – 3.5L V6
- Monte Carlo (2006) – 3.9L V6
- P30 (1996–1999) – 7.4L V8
- Silverado 2500 HD (2001–2006) – 8.1L V8
- Silverado 2500 HD Classic (2007) – 8.1L V8
- Silverado 3500 (2001–2006) – 8.1L V8
- Silverado 3500 Classic (2007) – 8.1L V8
- Suburban 2500 (2001–2006) – 8.1L V8
- Uplander (2006–2009) – 3.9L V6
GMC
- B7 (1999–2000) – 7.4L V8
- B7 (2001–2002) – 8.1L V8
- C2500 (1996–2000) – 7.4L V8
- C2500 Suburban (1996–1999) – 7.4L V8
- C3500 (1996–2000) – 7.4L V8
- C3500HD (1996–2000) – 7.4L V8
- C3500HD (2001–2002) – 8.1L V8
- C4500 Topkick (2003–2009) – 8.1L V8
- C5500 Topkick (2003–2009) – 8.1L V8
- C6500 Topkick (1999–2000) – 7.4L V8
- C6500 Topkick (2001–2009) – 8.1L V8
- C7500 Topkick (1999–2000) – 7.4L V8
- C7500 Topkick (2001–2009) – 8.1L V8
- C8500 Topkick (2003–2009) – 8.1L V8
- K1500 (1996–1998) – 4.3L V6
- K2500 (1996–2000) – 7.4L V8
- K2500 Suburban (1996–1999) – 7.4L V8
- K3500 (1996–2000) – 7.4L V8
- P3500 (1996–1999) – 7.4L V8
- Savana 3500 (1996–2000) – 7.4L V8
- Savana 3500 (2001–2002) – 8.1L V8
- Sierra 2500 HD (2001–2006) – 8.1L V8
- Sierra 2500 HD Classic (2007) – 8.1L V8
- Sierra 3500 (2001–2006) – 8.1L V8
- Sierra 3500 Classic (2007) – 8.1L V8
- Yukon XL 2500 (2001–2006) – 8.1L V8
Isuzu
- Hombre (1998–2000) – 2.2L L4
Oldsmobile
- Cutlass Supreme (1993) – 3.1L V6
Pontiac
- G6 (2006–2010) – 3.5L / 3.9L V6
- Grand Prix (1994–1995) – 3.1L V6
- Montana (2006–2009) – 3.9L V6
Workhorse
- P32 (2001–2005) – 8.1L V8
- P42 (2005) – 7.4L V8
- R26 (2007–2009) – 8.1L V8
- W16 (2006–2009) – 8.1L V8
- W18 (2006–2009) – 8.1L V8
- W20 (2001–2009) – 8.1L V8
- W21 (2007–2009) – 8.1L V8
- W22 (2001–2009) – 8.1L V8
- W24 (2004–2009) – 8.1L V8
- W25 (2005–2009) – 8.1L V8
- W42 (2009–2011) – 4.8L V8
- W62 (2007–2011) – 6.0L V8
Workhorse Custom Chassis
- P32 (2001–2006) – 8.1L V8
- R26 (2007–2008) – 8.1L V8
- W18 (2006–2010) – 8.1L V8
- W22 (2001–2011) – 8.1L V8
- W24 (2004–2011) – 8.1L V8
- W52 (2002–2005) – 8.1L V8
- W62 (2007–2010) – 8.1L V8
- W72 (2006) – 8.1L V8
Volvo Penta
- 8.1Gi-A – 8.1L V8
- 8.1Gi-B – 8.1L V8
- 8.1Gi-BF – 8.1L V8
- 8.1Gi-CF – 8.1L V8
- 8.1Gi-C-400-J – 8.1L V8
- 8.1Gi-C-400-JF – 8.1L V8
- 8.1Gi-C-400-Q – 8.1L V8
- 8.1Gi-D – 8.1L V8
- 8.1Gi-DF – 8.1L V8
- 8.1Gi-E – 8.1L V8
- 8.1Gi-EF – 8.1L V8
- 8.1Gi-F – 8.1L V8
- 8.1Gi-FF – 8.1L V8
- 8.1Gi-G – 8.1L V8
- 8.1Gi-GF – 8.1L V8
- 8.1Gi-H – 8.1L V8
- 8.1Gi-HF – 8.1L V8
- 8.1Gi-J – 8.1L V8
- 8.1Gi-JF – 8.1L V8
- 8.1GiCE-P – 8.1L V8
- 8.1GiCE-Q – 8.1L V8
- 8.1GiE-J – 8.1L V8
- 8.1GiE-JF – 8.1L V8
- 8.1GiE-K – 8.1L V8
- 8.1GiE-KF – 8.1L V8
- 8.1GiE-M – 8.1L V8
- 8.1GiE-MF – 8.1L V8
- 8.1Gil-A – 8.1L V8
- 8.1Gil-B – 8.1L V8
- 8.1Gil-C – 8.1L V8
- 8.1Gil-D – 8.1L V8
- 8.1Gil-E – 8.1L V8
- 8.1Gil-F – 8.1L V8
- 8.1Gil-G – 8.1L V8
- 8.1Gil-J – 8.1L V8
- 8.1Gil-JF – 8.1L V8
- 8.1GSi-A – 8.1L V8
- 8.1GXi-A – 8.1L V8
- 8.1GXi-AF – 8.1L V8
- 8.1GXi-B – 8.1L V8
- 8.1GXi-BF – 8.1L V8
- 8.1GXi-C – 8.1L V8
- 8.1GXi-CF – 8.1L V8
- 8.1GXi-D – 8.1L V8
- 8.1GXi-DF – 8.1L V8
- 8.1GXi-E – 8.1L V8
- 8.1GXi-EF – 8.1L V8
- 8.1GXi-F – 8.1L V8
- 8.1GXi-FF – 8.1L V8
- 8.1GXi-G – 8.1L V8
- 8.1GXi-GF – 8.1L V8
- 8.1GXi-J – 8.1L V8
- 8.1GXi-JF – 8.1L V8
- 8.1GXiE-J – 8.1L V8
- 8.1GXiE-JF – 8.1L V8
- 8.1GXiE-K – 8.1L V8
- 8.1GXiE-KF – 8.1L V8
- 8.1GXiE-M – 8.1L V8
- 8.1GXiE-MF – 8.1L V8
- 8.1GXiL-D – 8.1L V8
- 8.1GXil-A – 8.1L V8
- 8.1GXil-B – 8.1L V8
- 8.1GXil-C – 8.1L V8
- 8.1GXil-E – 8.1L V8
- 8.1OSi-A – 8.1L V8
- 8.1OSi-AF – 8.1L V8
- 8.1OSi-B – 8.1L V8
- 8.1OSi-BF – 8.1L V8
- 8.1OSi-C – 8.1L V8
- 8.1OSi-CF – 8.1L V8
- 8.1OSi-D – 8.1L V8
- 8.1OSi-DF – 8.1L V8
- 8.1OSi-J – 8.1L V8
- 8.1OSi-JF – 8.1L V8
- 8.1OSiE-J – 8.1L V8
- 8.1OSiE-JF – 8.1L V8
- DPX375-A – 8.1L V8
- DPX375-B – 8.1L V8
- DPX375-BF – 8.1L V8
- DPX375-CF – 8.1L V8
- DPX420-A – 8.1L V8
- DPX420-B – 8.1L V8
- DPX420-BF – 8.1L V8
- DPX420-CF – 8.1L V8
- Gi/Gsi – 8.1L V8
- Gi/Gxi – 8.1L V8
- OSi-XDP – 8.1L V8
- V6-200-A – 4.3L V6
- V6-225-A – 4.3L V6
- V6-225-E-A – 4.3L V6
Mercruiser
- 8.1L Inboard – 8.1L V8
- 8.1L Inboard (H.O.) – 8.1L V8
- 8.1L Inboard (H.O.) EC – 8.1L V8
- 8.1L Towsport (Base) – 8.1L V8
- 8.1S – 8.1L V8
- 8.1S HO MIE – 8.1L V8
- 8.1S HO MIE EC – 8.1L V8
- 8.1S Horizon – 8.1L V8
- 496 Mag. – 8.1L V8
- 496 Mag. EC – 8.1L V8
- 496 Mag. EC HO – 8.1L V8
- 496 Mag. HO – 8.1L V8
- 496 Mag. HO EC – 8.1L V8
Marine Power
Indmar
- Malibu – 8.1L V8
- Malibu – 6.0L V8
- Malibu 383 Hammerhead – 6.2L V8
- MasterCraft – 8.1L V8
Indmar Marine
- Base – 6.0L V8
- Base – 6.2L V8
- Base – 8.1L V8
Kodiak
- Base – 6.0L V8
- Base – 6.2L V8
