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Vehicle Info NeededMOROSOPART NUMBER: 710-73746
73746 Ultra 40 Black 8.5mm Spark Plug Wire Set for GM Gen III/IV LS, Gen V LT Engines w/Aluminum Heat Shield (11 in.)
$8399
Ships on Sep 15, 2026
Lowest Price GuaranteeBlack
Ultra 40 Spark Plug Wire SetGM Gen III/IV LS, Gen V LT Engines 8.5mm Diameter Silicone Spiral-Wound Conductor 40 ohms of Resistance per Foot Unsleeved Aluminum Heat Shield Length: 11 in. Fully Assembled Black Set of 8
Moroso 73746 Ultra 40 Black 8.5mm Spark Plug Wire Set Note:
- These 11-in. length wires are recommended for most LS-based truck engines equipped with round coils
- For most GM LS & LT car or truck engines equipped with square coils, Moroso recommends 9.750 in. wire set 73744 (sold separately)
Part TypeSpark Plug Wire
BrandMOROSO
Package Height3.75
Package Width9.25
Package Length11 in (279.4 mm)
Weight1.65 PG
Spark Plug Wire Resistance40 ohms/ft.
Spark Plug Wire Diameter (Mm)8.5
SleevedNo
Wire SeriesUltra 40
Wire ColorBlack
QuantitySet of 8
AssembledYes
Package Qty1
Package TypeEA
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