Denso 671-8045 Spark Plug Wire Set

Denso 7mm Spark Plug Wire Set for OE-Style Replacement

Denso First Time Fit ignition wire sets are built to match factory-installed wire sets in form, fit, color, and performance. This Denso 7mm spark plug wire set, part number 671-8045, is a direct OE-style replacement for classic Chevrolet, GMC, and Pontiac applications that use a 7mm wire design.

Key Features

• 7mm insulation outside diameter for OE-style routing and fit
• Silicone spark plug boot material for heat resistance and durability
• Female spark plug end terminal type
• Male distributor or coil end terminal type
• 180-degree spark plug end boot for specific engine routing needs
• Built to meet or exceed OE/OES construction standards
• Part number 671-8045 for easy identification

Product Details

The Denso 7mm line is focused on factory-correct ignition wire replacement, making it a practical choice for owners restoring or maintaining older vehicles. Part number 671-8045 is engineered for applications that require a 7mm wire set with silicone boots and OE-style terminal configurations. It is listed for classic Chevrolet Camaro, Corvette, Impala, El Camino, Nova, Monte Carlo, Bel Air, Caprice, Malibu, Blazer, C10 Suburban, C20 Suburban, K10 Suburban, K20 Suburban, GMC Jimmy, GMC G25/G2500 Van, and Pontiac Firebird and Bonneville applications. This part cross-references NAPA Mileage Plus 6718045 and ACDelco 508R for the same application.

Common Problems This Part Can Address

• Misfires caused by worn or heat-damaged ignition wires
• Hard starting from deteriorated spark delivery
• Rough idle related to cracked insulation or weak terminals
• Intermittent ignition performance on older 7mm systems
• Restoration needs for OE-style Chevrolet, GMC, and Pontiac ignition layouts

Installation Notes and Fitment Tips

Verify engine and ignition system configuration before ordering, especially on Chevrolet applications noted as w/o HEI. Confirm the wire routing, terminal style, and boot angle match the original setup before installation. Compatible With 1973-1974 Chevrolet Bel Air, w/o HEI; 7mm. Compatible With 1970-1974 Chevrolet C10 Suburban, 7mm. Compatible With 1970-1974 Chevrolet C20 Suburban, 7mm. Compatible With 1973-1974 Chevrolet Caprice, w/o HEI; 7mm. Compatible With 1974 Chevrolet Corvette, w/o HEI; 7mm. Compatible With 1974 Chevrolet El Camino, w/o HEI; 7mm. Compatible With 1973-1974 Chevrolet Impala, w/o HEI; 7mm. Compatible With 1974 Chevrolet Malibu, w/o HEI; 7mm. Compatible With 1974 Chevrolet Monte Carlo, w/o HEI; 7mm. Compatible With 1973 Chevrolet Blazer, 7mm. Compatible With 1967-1973 Chevrolet Corvette, 7mm. Compatible With 1966-1973 Chevrolet El Camino, 7mm. Compatible With 1973 Chevrolet K20 Suburban, 7mm. Compatible With 1970-1973 Chevrolet Monte Carlo, 7mm. Compatible With 1973 GMC Jimmy, 7mm. Compatible With 1966-1972 Chevrolet Bel Air, 7mm. Compatible With 1963 Chevrolet Bel Air, 7mm. Compatible With 1967-1972 Chevrolet Camaro, 7mm. Compatible With 1966-1972 Chevrolet Caprice, 7mm. Compatible With 1965-1972 Chevrolet Impala, 7mm. Compatible With 1963 Chevrolet Impala, 7mm. Compatible With 1970-1972 Chevrolet K10 Suburban, 7mm. Compatible With 1968-1972 Pontiac Firebird, 7mm. Compatible With 1969-1970 Chevrolet Nova, 7mm. Compatible With 1970 GMC G25/G2500 Van, 7mm. Compatible With 1968-1969 Pontiac Bonneville, 7mm. Compatible With 1968 Pontiac Grand Prix, 7mm. Compatible With 1966-1967 Chevrolet Malibu, 7mm.

Quality Assurance

Denso First Time Fit ignition wire sets are built to match factory-installed wire sets in appearance and performance, with construction that meets or exceeds OE/OES standards. The 7mm design and silicone boot materials support consistent ignition service in the listed classic vehicle applications.