Engineered from the inside out, the 8.5 offers everything you have ever wanted in a wire, incredibly low resistance without electronic interference! In a single 12 inch length of Super Conductor Wire there is only 40 - 50 ohms of resistance! That is the lowest resistance of any helically wound wire. To accomplish this, we use a copper alloy conductor due to it's great voltage carrying capabilities. The low resistance results in less loss in spark energy so more reaches the spark plug. The conductor is wound extremely tight around a special center core. So tight in fact, that there is over 40 feet of conductor wrapped into a single foot of plug wire. This winding procedure, combined with a ferro-magnetic impregnated center core, produces an extremely effective Electro Magnetic Interference (EMI) "choke". This choke, or suppression capability, keeps the EMI inside the wire where it cannot interfere with other electronics on your vehicle. The outer sleeve that surrounds the conductor assembly is just as impressive. A proprietary blend of silicone and synthetic material produce a sleeve that is highly resistant to high heat as well as abrasion and tears. The MSD's 8.5mm spark plug terminals feature Dual Crimp terminals. As the name implies, the terminals feature two crimps, one for the sleeve of the wire and another separate crimp to grasp the conductor. The MSD's 8.5mm spark plug terminals feature Dual Crimp terminals. As the name implies, the terminals feature two crimps, one for the sleeve of the wire and another separate crimp to grasp the conductor.

Manufacturer-listed applications

Match the engine, body, trim and installation requirements. All qualifications shown for an application apply together. Where this part requires a modified or aftermarket assembly, the vehicle listing alone does not confirm compatibility with factory equipment.

Vehicle	Configuration and qualifications
1972 Jeep Commando 1972 Jeep J-2500 1972 Jeep J-2600 1972–1981 Jeep CJ5 1972–1975 Jeep CJ6 1976–1981 Jeep CJ7 1970 American Motors Ambassador 1979 American Motors Spirit 1970–1974 American Motors Javelin 1970 American Motors Rebel 1978–1979 American Motors AMX 1978–1979 American Motors Concord 1972–1975 American Motors Gremlin 1970–1971, 1973–1977 American Motors Hornet 1971–1977 American Motors Matador 1978 American Motors Pacer	Engine: 5.0L V8 Quantity: 1 Submodel: Base Engine displacement (cu in): 304 Application notes: Custom Spark Plug Wire Set; Red Super Conductor 8.5mm; 8.5mm; w/HEI Cap; OEM Cut;
1973 Jeep Commando	Engine: 5.0L V8 Quantity: 1 Submodel: Base Engine displacement (cu in): 304
1972–1973 Jeep J-2500 1972–1973 Jeep J-2600 1974–1983 Jeep Cherokee 1984–1988 Jeep Grand Wagoneer 1974–1988 Jeep J10 1974–1988 Jeep J20 1972–1982 Jeep Wagoneer 1970 American Motors Ambassador 1970–1974 American Motors Javelin 1970 American Motors Rebel 1970 American Motors AMX 1971, 1973–1974 American Motors Hornet 1971–1978 American Motors Matador	Engine: 5.9L V8 Quantity: 1 Submodel: Base Engine displacement (cu in): 360 Application notes: Custom Spark Plug Wire Set; Red Super Conductor 8.5mm; 8.5mm; w/HEI Cap; OEM Cut;
1975–1981 Jeep CJ5 1976–1981 Jeep CJ7	Engine: 5.0L V8 Quantity: 1 Submodel: Renegade Engine displacement (cu in): 304 Application notes: Custom Spark Plug Wire Set; Red Super Conductor 8.5mm; 8.5mm; w/HEI Cap; OEM Cut;
1977–1980 Jeep CJ5 1977–1979 Jeep CJ7	Engine: 5.0L V8 Quantity: 1 Submodel: Golden Eagle Engine displacement (cu in): 304 Application notes: Custom Spark Plug Wire Set; Red Super Conductor 8.5mm; 8.5mm; w/HEI Cap; OEM Cut;
1980–1981 Jeep CJ5 1980–1981 Jeep CJ7	Engine: 5.0L V8 Quantity: 1 Submodel: Laredo Engine displacement (cu in): 304 Application notes: Custom Spark Plug Wire Set; Red Super Conductor 8.5mm; 8.5mm; w/HEI Cap; OEM Cut;
1980 Jeep CJ7	Engine: 5.0L V8 Quantity: 1 Submodel: Golden Hawk Engine displacement (cu in): 304 Application notes: Custom Spark Plug Wire Set; Red Super Conductor 8.5mm; 8.5mm; w/HEI Cap; OEM Cut;
1974–1978 Jeep Cherokee 1974–1978 Jeep J10 1974–1978 Jeep J20 1974–1978 Jeep Wagoneer 1971–1974 American Motors Javelin 1971–1976 American Motors Matador	Engine: 6.6L V8 Quantity: 1 Submodel: Base Engine displacement (cu in): 401 Application notes: Custom Spark Plug Wire Set; Red Super Conductor 8.5mm; 8.5mm; w/HEI Cap; OEM Cut;
1974–1977 Jeep Cherokee	Engine: 5.9L V8 Quantity: 1 Submodel: S Engine displacement (cu in): 360 Application notes: Custom Spark Plug Wire Set; Red Super Conductor 8.5mm; 8.5mm; w/HEI Cap; OEM Cut;
1974–1977 Jeep Cherokee	Engine: 6.6L V8 Quantity: 1 Submodel: S Engine displacement (cu in): 401 Application notes: Custom Spark Plug Wire Set; Red Super Conductor 8.5mm; 8.5mm; w/HEI Cap; OEM Cut;
1975–1983 Jeep Cherokee	Engine: 5.9L V8 Quantity: 1 Submodel: Wide Track Chief Engine displacement (cu in): 360
1975–1978 Jeep Cherokee	Engine: 6.6L V8 Quantity: 1 Submodel: Wide Track Chief Engine displacement (cu in): 401
1978–1980 Jeep Cherokee	Engine: 5.9L V8 Quantity: 1 Submodel: S Engine displacement (cu in): 360
1978–1980 Jeep Cherokee	Engine: 5.9L V8 Quantity: 1 Submodel: Wide Track Engine displacement (cu in): 360 Application notes: Custom Spark Plug Wire Set; Red Super Conductor 8.5mm; 8.5mm; w/HEI Cap; OEM Cut;
1978 Jeep Cherokee	Engine: 6.6L V8 Quantity: 1 Submodel: S Engine displacement (cu in): 401
1978 Jeep Cherokee	Engine: 6.6L V8 Quantity: 1 Submodel: Wide Track Engine displacement (cu in): 401 Application notes: Custom Spark Plug Wire Set; Red Super Conductor 8.5mm; 8.5mm; w/HEI Cap; OEM Cut;
1979–1980 Jeep Cherokee	Engine: 5.9L V8 Quantity: 1 Submodel: Wide Track Golden Eagle Engine displacement (cu in): 360
1980–1983 Jeep Cherokee	Engine: 5.9L V8 Quantity: 1 Submodel: Wide Track Laredo Engine displacement (cu in): 360
1980 Jeep Cherokee	Engine: 5.9L V8 Quantity: 1 Submodel: Wide Track Limited Engine displacement (cu in): 360
1981–1982 Jeep Cherokee	Engine: 5.9L V8 Quantity: 1 Submodel: Chief Engine displacement (cu in): 360 Application notes: Custom Spark Plug Wire Set; Red Super Conductor 8.5mm; 8.5mm; w/HEI Cap; OEM Cut;
1981 Jeep Cherokee	Engine: 5.9L V8 Quantity: 1 Submodel: Laredo Engine displacement (cu in): 360
1983 Jeep Cherokee	Engine: 5.9L V8 Quantity: 1 Submodel: Pioneer Engine displacement (cu in): 360 Application notes: Custom Spark Plug Wire Set; Red Super Conductor 8.5mm; 8.5mm; w/HEI Cap; OEM Cut;
1984–1985 Jeep Grand Wagoneer 1979–1983 Jeep Wagoneer	Engine: 5.9L V8 Quantity: 1 Submodel: Limited Engine displacement (cu in): 360 Application notes: Custom Spark Plug Wire Set; Red Super Conductor 8.5mm; 8.5mm; w/HEI Cap; OEM Cut;
1973–1976 Jeep Wagoneer	Engine: 5.9L V8 Quantity: 1 Submodel: Custom Engine displacement (cu in): 360 Application notes: Custom Spark Plug Wire Set; Red Super Conductor 8.5mm; 8.5mm; w/HEI Cap; OEM Cut;
1974–1976 Jeep Wagoneer	Engine: 6.6L V8 Quantity: 1 Submodel: Custom Engine displacement (cu in): 401 Application notes: Custom Spark Plug Wire Set; Red Super Conductor 8.5mm; 8.5mm; w/HEI Cap; OEM Cut;
1982–1983 Jeep Wagoneer 1971–1974 American Motors Ambassador 1974 American Motors Matador	Engine: 5.9L V8 Quantity: 1 Submodel: Brougham Engine displacement (cu in): 360 Application notes: Custom Spark Plug Wire Set; Red Super Conductor 8.5mm; 8.5mm; w/HEI Cap; OEM Cut;
1967–1969 American Motors Ambassador 1967 American Motors Marlin 1968–1969 American Motors Javelin 1967, 1969 American Motors Rebel 1967 American Motors American 1968–1969 American Motors AMX	Engine: 5.6L V8 Quantity: 1 Submodel: Base Engine displacement (cu in): 343 Application notes: Custom Spark Plug Wire Set; Red Super Conductor 8.5mm; 8.5mm; w/HEI Cap; OEM Cut;
1967 American Motors Ambassador	Engine: 5.6L V8 Quantity: 1 Submodel: 990 Engine displacement (cu in): 343 Application notes: Custom Spark Plug Wire Set; Red Super Conductor 8.5mm; 8.5mm; w/HEI Cap; OEM Cut;
1968–1970 American Motors Ambassador 1968–1970 American Motors Javelin 1969–1970 American Motors Rebel	Engine: 6.4L V8 Quantity: 1 Submodel: SST Engine displacement (cu in): 390 Application notes: Custom Spark Plug Wire Set; Red Super Conductor 8.5mm; 8.5mm; w/HEI Cap; OEM Cut;
1968–1970 American Motors Ambassador	Engine: 6.4L V8 Quantity: 1 Submodel: DPL Engine displacement (cu in): 390 Application notes: Custom Spark Plug Wire Set; Red Super Conductor 8.5mm; 8.5mm; w/HEI Cap; OEM Cut;
1968–1970 American Motors Ambassador 1968–1970 American Motors Javelin 1970 American Motors Rebel 1968–1970 American Motors AMX	Engine: 6.4L V8 Quantity: 1 Submodel: Base Engine displacement (cu in): 390 Application notes: Custom Spark Plug Wire Set; Red Super Conductor 8.5mm; 8.5mm; w/HEI Cap; OEM Cut;
1968–1969 American Motors Ambassador 1968–1969 American Motors Javelin 1967–1969 American Motors Rebel	Engine: 5.6L V8 Quantity: 1 Submodel: SST Engine displacement (cu in): 343 Application notes: Custom Spark Plug Wire Set; Red Super Conductor 8.5mm; 8.5mm; w/HEI Cap; OEM Cut;
1968–1969 American Motors Ambassador	Engine: 5.6L V8 Quantity: 1 Submodel: DPL Engine displacement (cu in): 343 Application notes: Custom Spark Plug Wire Set; Red Super Conductor 8.5mm; 8.5mm; w/HEI Cap; OEM Cut;
1970–1972 American Motors Ambassador 1970–1972 American Motors Javelin 1970 American Motors Rebel 1970–1972 American Motors Hornet	Engine: 5.0L V8 Quantity: 1 Submodel: SST Engine displacement (cu in): 304 Application notes: Custom Spark Plug Wire Set; Red Super Conductor 8.5mm; 8.5mm; w/HEI Cap; OEM Cut;
1970–1972 American Motors Ambassador 1970–1972 American Motors Javelin 1970 American Motors Rebel 1971–1972 American Motors Hornet	Engine: 5.9L V8 Quantity: 1 Submodel: SST Engine displacement (cu in): 360 Application notes: Custom Spark Plug Wire Set; Red Super Conductor 8.5mm; 8.5mm; w/HEI Cap; OEM Cut;
1970–1971 American Motors Ambassador	Engine: 5.0L V8 Quantity: 1 Submodel: DPL Engine displacement (cu in): 304 Application notes: Custom Spark Plug Wire Set; Red Super Conductor 8.5mm; 8.5mm; w/HEI Cap; OEM Cut;
1970–1971 American Motors Ambassador	Engine: 5.9L V8 Quantity: 1 Submodel: DPL Engine displacement (cu in): 360 Application notes: Custom Spark Plug Wire Set; Red Super Conductor 8.5mm; 8.5mm; w/HEI Cap; OEM Cut;
1971–1974 American Motors Ambassador 1974 American Motors Matador	Engine: 6.6L V8 Quantity: 1 Submodel: Brougham Engine displacement (cu in): 401 Application notes: Custom Spark Plug Wire Set; Red Super Conductor 8.5mm; 8.5mm; w/HEI Cap; OEM Cut;
1971–1974 American Motors Ambassador 1974 American Motors Matador	Engine: 5.0L V8 Quantity: 1 Submodel: Brougham Engine displacement (cu in): 304 Application notes: Custom Spark Plug Wire Set; Red Super Conductor 8.5mm; 8.5mm; w/HEI Cap; OEM Cut;
1971–1972 American Motors Ambassador 1971–1972 American Motors Javelin	Engine: 6.6L V8 Quantity: 1 Submodel: SST Engine displacement (cu in): 401 Application notes: Custom Spark Plug Wire Set; Red Super Conductor 8.5mm; 8.5mm; w/HEI Cap; OEM Cut;
1971 American Motors Ambassador	Engine: 6.6L V8 Quantity: 1 Submodel: DPL Engine displacement (cu in): 401 Application notes: Custom Spark Plug Wire Set; Red Super Conductor 8.5mm; 8.5mm; w/HEI Cap; OEM Cut;
1967 American Motors Marlin 1969 American Motors Rambler 1968–1969 American Motors Javelin 1967 American Motors Rebel 1967 American Motors American 1968–1969 American Motors AMX	Engine: 4.7L V8 Quantity: 1 Submodel: Base Engine displacement (cu in): 290 Application notes: Custom Spark Plug Wire Set; Red Super Conductor 8.5mm; 8.5mm; w/HEI Cap; OEM Cut;
1969 American Motors Rambler 1967 American Motors American	Engine: 4.7L V8 Quantity: 1 Submodel: Rogue Engine displacement (cu in): 290 Application notes: Custom Spark Plug Wire Set; Red Super Conductor 8.5mm; 8.5mm; w/HEI Cap; OEM Cut;
1969 American Motors Rambler 1967 American Motors American	Engine: 4.7L V8 Quantity: 1 Submodel: 440 Engine displacement (cu in): 290 Application notes: Custom Spark Plug Wire Set; Red Super Conductor 8.5mm; 8.5mm; w/HEI Cap; OEM Cut;
1968–1969 American Motors Javelin 1967 American Motors Rebel	Engine: 4.7L V8 Quantity: 1 Submodel: SST Engine displacement (cu in): 290 Application notes: Custom Spark Plug Wire Set; Red Super Conductor 8.5mm; 8.5mm; w/HEI Cap; OEM Cut;
1970 American Motors Javelin	Engine: 5.9L V8 Quantity: 1 Submodel: SST Trans Am Engine displacement (cu in): 360 Application notes: Custom Spark Plug Wire Set; Red Super Conductor 8.5mm; 8.5mm; w/HEI Cap; OEM Cut;
1970 American Motors Javelin	Engine: 6.4L V8 Quantity: 1 Submodel: SST Trans Am Engine displacement (cu in): 390 Application notes: Custom Spark Plug Wire Set; Red Super Conductor 8.5mm; 8.5mm; w/HEI Cap; OEM Cut;
1970 American Motors Javelin	Engine: 5.9L V8 Quantity: 1 Submodel: SST Mark Donohue Engine displacement (cu in): 360 Application notes: Custom Spark Plug Wire Set; Red Super Conductor 8.5mm; 8.5mm; w/HEI Cap; OEM Cut;
1970 American Motors Javelin	Engine: 6.4L V8 Quantity: 1 Submodel: SST Mark Donohue Engine displacement (cu in): 390 Application notes: Custom Spark Plug Wire Set; Red Super Conductor 8.5mm; 8.5mm; w/HEI Cap; OEM Cut;
1971–1974 American Motors Javelin	Engine: 6.6L V8 Quantity: 1 Submodel: AMX Engine displacement (cu in): 401 Application notes: Custom Spark Plug Wire Set; Red Super Conductor 8.5mm; 8.5mm; w/HEI Cap; OEM Cut;
1971–1974 American Motors Javelin	Engine: 5.9L V8 Quantity: 1 Submodel: AMX Engine displacement (cu in): 360 Application notes: Custom Spark Plug Wire Set; Red Super Conductor 8.5mm; 8.5mm; w/HEI Cap; OEM Cut;
1971, 1974 American Motors Javelin	Engine: 5.0L V8 Quantity: 1 Submodel: AMX Engine displacement (cu in): 304
1972–1973 American Motors Javelin 1977 American Motors Hornet	Engine: 5.0L V8 Quantity: 1 Submodel: AMX Engine displacement (cu in): 304 Application notes: Custom Spark Plug Wire Set; Red Super Conductor 8.5mm; 8.5mm; w/HEI Cap; OEM Cut;
1967–1968 American Motors Rebel	Engine: 5.6L V8 Quantity: 1 Submodel: 770 Engine displacement (cu in): 343 Application notes: Custom Spark Plug Wire Set; Red Super Conductor 8.5mm; 8.5mm; w/HEI Cap; OEM Cut;
1967 American Motors Rebel	Engine: 4.7L V8 Quantity: 1 Submodel: 770 Engine displacement (cu in): 290 Application notes: Custom Spark Plug Wire Set; Red Super Conductor 8.5mm; 8.5mm; w/HEI Cap; OEM Cut;
1968 American Motors Rebel	Engine: 4.7L V8 Quantity: 1 Submodel: 550 Engine displacement (cu in): 290 Application notes: Custom Spark Plug Wire Set; Red Super Conductor 8.5mm; 8.5mm; w/HEI Cap; OEM Cut;
1968 American Motors Rebel	Engine: 5.6L V8 Quantity: 1 Submodel: 550 Engine displacement (cu in): 343 Application notes: Custom Spark Plug Wire Set; Red Super Conductor 8.5mm; 8.5mm; w/HEI Cap; OEM Cut;
1969 American Motors Rebel	Engine: 4.8L V8 Quantity: 1 Submodel: SST Engine displacement (cu in): 290 Application notes: Custom Spark Plug Wire Set; Red Super Conductor 8.5mm; 8.5mm; w/HEI Cap; OEM Cut;
1969 American Motors Rebel 1968–1969 American Motors AMX	Engine: 4.8L V8 Quantity: 1 Submodel: Base Engine displacement (cu in): 290 Application notes: Custom Spark Plug Wire Set; Red Super Conductor 8.5mm; 8.5mm; w/HEI Cap; OEM Cut;
1970 American Motors Rebel	Engine: 6.4L V8 Quantity: 1 Submodel: The Machine Engine displacement (cu in): 390 Application notes: Custom Spark Plug Wire Set; Red Super Conductor 8.5mm; 8.5mm; w/HEI Cap; OEM Cut;
1967 American Motors American	Engine: 5.6L V8 Quantity: 1 Submodel: Rogue Engine displacement (cu in): 343 Application notes: Custom Spark Plug Wire Set; Red Super Conductor 8.5mm; 8.5mm; w/HEI Cap; OEM Cut;
1967 American Motors American	Engine: 5.6L V8 Quantity: 1 Submodel: 440 Engine displacement (cu in): 343 Application notes: Custom Spark Plug Wire Set; Red Super Conductor 8.5mm; 8.5mm; w/HEI Cap; OEM Cut;
1979 American Motors Concord 1979 American Motors Pacer	Engine: 5.0L V8 Quantity: 1 Submodel: Limited Engine displacement (cu in): 304 Application notes: Custom Spark Plug Wire Set; Red Super Conductor 8.5mm; 8.5mm; w/HEI Cap; OEM Cut;
1979 American Motors Concord 1979 American Motors Pacer	Engine: 5.0L V8 Quantity: 1 Submodel: DL Engine displacement (cu in): 304 Application notes: Custom Spark Plug Wire Set; Red Super Conductor 8.5mm; 8.5mm; w/HEI Cap; OEM Cut;
1976 American Motors Gremlin	Engine: 5.0L V8 Quantity: 1 Submodel: Custom Engine displacement (cu in): 304 Application notes: Custom Spark Plug Wire Set; Red Super Conductor 8.5mm; 8.5mm; w/HEI Cap; OEM Cut;
1971–1977 American Motors Hornet	Engine: 5.0L V8 Quantity: 1 Submodel: Sportabout Engine displacement (cu in): 304 Application notes: Custom Spark Plug Wire Set; Red Super Conductor 8.5mm; 8.5mm; w/HEI Cap; OEM Cut;
1971–1974 American Motors Hornet	Engine: 5.9L V8 Quantity: 1 Submodel: Sportabout Engine displacement (cu in): 360 Application notes: Custom Spark Plug Wire Set; Red Super Conductor 8.5mm; 8.5mm; w/HEI Cap; OEM Cut;
1971 American Motors Hornet	Engine: 5.9L V8 Quantity: 1 Submodel: SC/360 Engine displacement (cu in): 360 Application notes: Custom Spark Plug Wire Set; Red Super Conductor 8.5mm; 8.5mm; w/HEI Cap; OEM Cut;
1974 American Motors Matador	Engine: 5.9L V8 Quantity: 1 Submodel: X Engine displacement (cu in): 360 Application notes: Custom Spark Plug Wire Set; Red Super Conductor 8.5mm; 8.5mm; w/HEI Cap; OEM Cut;
1974 American Motors Matador	Engine: 5.0L V8 Quantity: 1 Submodel: X Engine displacement (cu in): 304 Application notes: Custom Spark Plug Wire Set; Red Super Conductor 8.5mm; 8.5mm; w/HEI Cap; OEM Cut;
1974 American Motors Matador	Engine: 6.6L V8 Quantity: 1 Submodel: X Engine displacement (cu in): 401 Application notes: Custom Spark Plug Wire Set; Red Super Conductor 8.5mm; 8.5mm; w/HEI Cap; OEM Cut;