Moroso 73757 Ultra 40 8.5mm Spark Plug Wires Black for GM LS Truck SUV 99-13

Vehicle Fitment

• 1999-2013 GM Truck & SUV, LS/LQ engines: 4.8L
• 1999-2013 GM Truck & SUV, LS/LQ engines: 5.3L
• 1999-2013 GM Truck & SUV, LS/LQ engines: 6.0L
• 1999-2013 GM Truck & SUV, LS/LQ engines: 6.2L
• 1999-2013 GM Truck & SUV, LS/LQ engines: 8.1L

Fitment Notes

• Covers GM LS/LQ truck and SUV platforms (Silverado, Sierra, Tahoe, Suburban, Yukon, Escalade, and related) within the listed engine and year range
• Verify your engine family and coil/distributor configuration before ordering
• Red version of this set is Moroso 73758

Features

• Ultra 40 spiral-wound nickel/copper alloy conductor for maximum spark energy transfer
• 40 ohms resistance per foot
• Kevlar core - about four times stronger than typical aramid-fiber cores for high tensile and dielectric strength
• Closely-woven fiberglass impregnated with silicone adds up to 8,000 volts of extra insulation
• High EMI/RFI suppression for cleaner electronics and radio operation
• Extra insulation resists exhaust header heat, chafing, and contaminants to extend wire life
• Multi-angle boots for flexible routing in tight engine bays
• Made in the USA

Specifications

• Product line: Moroso Ultra 40
• Wire diameter: 8.5mm
• Resistance: 40 ohms per foot
• Conductor: Spiral-wound nickel/copper alloy
• Core: Kevlar
• Boot style: Multi-angle
• Engine family: GM LS/LQ
• Color: Black

Included Components

• 1x Moroso 73757 Ultra 40 spark plug wire set (complete set for one engine)

Product Description

The Moroso 73757 is an Ultra 40 race spark plug wire set in black, built for 1999-2013 GM truck and SUV applications running LS/LQ engines in 4.8L, 5.3L, 6.0L, 6.2L, and 8.1L displacements. The Ultra 40 design uses a spiral-wound nickel/copper alloy conductor at 40 ohms per foot to deliver high spark energy while keeping electromagnetic and radio-frequency interference low - valuable on engines running modern ignition and electronics.

A Kevlar core gives the wire roughly four times the tensile strength of typical aramid-fiber cores, and the closely-woven, silicone-impregnated fiberglass jacket adds up to 8,000 volts of extra insulation while protecting against header heat, chafing, and contaminants. The 8.5mm black wires use multi-angle boots for flexible routing in tight engine bays, and come as a complete set ready to install.