NGK 51241 Spark Plug Wire Set

NGK Spark Plug Wire Set for GM V8 Applications

NGK Spark Plug Wire Set 51241 is a specific-fit ignition wire set built for select Chevrolet and GMC trucks, vans, SUVs, and utility models from 1987-1993. With blue silicone insulation, noise suppression, and a durable SMag core, it supports stable spark delivery and clean ignition performance in demanding underhood conditions.

Key Features

• Specific-fit NGK spark plug wire set for confirmed GM applications
• Blue silicone insulation for heat resistance and flexibility
• Noise suppression type helps reduce ignition interference
• SMag core material supports consistent spark transfer
• 8.00 mm insulation outside diameter
• NGK part number 51241 / RC-GMZ037

Product Details

NGK Spark Plug Wire Set 51241 is part of the NGK Spark Plug Wire Set line, backed by NGK’s long history in ignition components and OE-focused manufacturing. This wire set is engineered as a direct replacement for specific Chevrolet Blazer, C/K truck, Suburban, G-Series van, P-Series, Jimmy, and Yukon applications, including 1987-1993 Chevrolet Blazer, 1988-1993 Chevrolet C1500, and 1992-1993 GMC Yukon. If you are searching for an NGK 51241 ignition wire set for a Chevrolet C1500 or GMC Jimmy, this part matches the listed applications and supports reliable ignition system service.

This part cross-references DENSO Auto Parts 671-8012 and Delphi XS10205 for the same application.

Common Problems This Part Can Address

• Misfires caused by worn or damaged spark plug wires
• Hard starting related to weak spark delivery
• Ignition noise that can interfere with engine operation
• Rough idle from inconsistent voltage transfer
• Heat-related wire deterioration in older GM ignition systems

Installation Notes and Tips

Verify engine application before installation and route each lead to match the original wire path. Inspect spark plugs, distributor cap, and ignition coil condition at the same time, since worn ignition components can affect wire performance. Confirm the boots are fully seated on each terminal and keep the wires separated from hot exhaust parts and sharp edges.

Quality Assurance

NGK manufactures ignition products to OE-level durability and performance standards, with global engineering and distribution support. Part number 51241 is built for specific-fit replacement use on the listed Chevrolet and GMC applications.