| Manufacturer & Part # | Description | Note |
| NGK Part # 3271 | Premium Platinum Plug (#PZFR6F11) | {.040 gap} |
| AUTOLITE Part # 5224 | PLUGS Resistor | GAP .044 |
| AUTOLITE Part # AP5224 | PLUGS Platinum | GAP .044 |
| AUTOLITE Part # APP5224 | PLUGS Double Platinum | GAP .044 |
| NGK Part # 7100 | GP-Series Platinum Plug (#ZFR6FGP, ZRF6FGP) | {.040 gap} |
| NGK Part # 6987 | V-Power Plug (#ZFR6F11G) | {.040 gap} |
| NGK Part # 6441 | IX-Series Iridium Plug (#ZFR6FIX11) | {.040 gap} |
| CHAMPION Part # 71 | COPPER PLUS (#RC12YC) | {.044 gap} |
| CHAMPION Part # 7071 | DOUBLE PLATINUM POWER (#RC12PYP) | OE Style {.044 gap} |
| DENSO Part # 3169 | Standard (#KJ20CRL11) | Resistor Plug |
| DENSO Part # 3247 | Double Platinum (#PKJ20CRL11) | DENSO is OE manufacturer / O.E. Recommended Double Platinum Plug - Extra Long Life Double Platinum Plug with Platinum Ground Strap |
| DENSO Part # 5304 | Iridium Power (#IK20) | Iridium Power Performance Upgrade With World's Smallest Center Electrode (0.4 mm Dia.) & Tapered Tip Patented U-Groove Design & Patented Ir Alloy (90% Ir) |
| CHAMPION Part # 3071 | PLATINUM POWER | {.044 gap} |
| ACDELCO Part # 41806 | PLATINUM PLUG (#88901012) | SPARK PLUG .044 GAP |
| AUTOLITE Part # XP5224 | PLUGS Xtreme Performance | OE Style; Gap .044 |
| CHAMPION Part # 9201 | CHAMPION IRIDIUM | {.044 gap} |