| Make | Model | Year |
|---|---|---|
| Checker | Marathon | 1975 |
| Chevy | Bel Air | 1975 |
| Blazer | 1975 | |
| Camaro | 1975 | |
| Caprice | 1975 | |
| CK Pickup | 1975 | |
| Corvette | 1975 | |
| El Camino | 1975, 1977-1978 | |
| G-Series | 1975, 1977-1978 | |
| Impala | 1975 | |
| Laguna | 1975 | |
| Malibu | 1975 | |
| Monte Carlo | 1975 | |
| Monza | 1975 | |
| Nova | 1975 | |
| P-Series | 1975-1978 | |
| Suburban | 1975 | |
| GMC | Caballero | 1978 |
| CK Pickup | 1975, 1977-1978 | |
| G-Series | 1975, 1977-1978 | |
| Jimmy | 1977-1978 | |
| P-Series | 1975, 1977-1978 | |
| Sprint | 1975, 1977 | |
| Suburban | 1975, 1977-1978 |
Copper Spark Plug (685) by Autolite®. With Resistor. OE Style. Want to upgrade the ignition system of your vehicle to get ultimate combustion and maximum horsepower? Step up to Autolite. Featuring the ground-breaking design, this product guarantees to deliver quick starts and provide peak performance. It was fabricated from novel materials with the help of up-to-date equipment to offer you the latest in quality and value.
| Thread Diameter: 14 mm |
| Thread Pitch: 1.25 mm |
| Seat Type: Tapered |
| Reach: 11 mm (7/16") |
| Hex Size: 5/8" (16 mm) |
| Terminal Type: Solid |
| Gap: .059" (1.5 mm) |
| Electrode Material: Copper |
| Ground Electrode Tip Design: Standard / Regular |
| Insulator Type: Short Projection |
| Insulator Material: Ceramic |
| Resistor: Yes |
| Nominal Gap: 1.1 mm |
| Spark Plug Thread Size: 0.551" |
| Spark Plug Reach: 0.460" |
| Heat Range: 30 |
If you're into performance, then you need an innovatively designed ignition part and that’s what Autolite has for you. This cutting-edge product was engineered with leading innovations to provide better performance, greater durability, quicker acceleration, and higher fuel efficiency versus originals. Manufactured from dependable materials with advanced equipment, it will enable powerful and reliable engine starting every single day. In addition, Autolite promises this part will deliver years of uninterrupted use and flawless operation. Backed by the expertise, it is going to meet and even surpass your highest expectations.
An innovation leader since 1936, Autolite® creates the highest quality ignition products for a wide variety of engines. Established in 1911, the company started manufacturing buggy lamps and became a thriving automotive parts manufacturer by the 1930's. Still, the first Autolite spark plug saw the world in 1936 and had instant success on the market. Today, the company is known as the manufacturer of America's best-selling spark plug and offers a number of spark plug series such as Autolite XP Xtreme Performance, Autolite Platinum, Autolite Revolution HT, Autolite Double Platinum, etc.
Autolite® - High Thread Spark Plug Removal And Installation