Order Status & Returns
Gift Cards
Help Center
1-800-345-4545
Vehicle Info NeededMOROSOPART NUMBER: 710-73741
73741 Ultra 40 Red 8.5mm Spark Plug Wire Set for GM Gen III/IV LS, Gen V LT Engines w/o Aluminum Heat Shield (9.750 in.)
$6899
Ships on Nov 02, 2026
Lowest Price GuaranteeRed
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 Length: 9.750 in. Fully Assembled Red Set of 8
Moroso 73741 Ultra 40 Red 8.5mm Spark Plug Wire Set Note:
- These 9.750 in. length wires are recommended for GM LS & LT car or truck engines equipped with square coils
- For most LS-based truck engines equipped with round coils Moroso recommends 11 in. wire set 73743 (sold separately)
8.5mm Ignition Wires for GM Coil-Near-Plug Engines
Moroso 8.5mm Ultra 40 Spark Plug Wire Sets for GM LS/LT Engines have only 40 ohms of resistance for a powerful and efficient spark.
Part TypeSpark Plug Wire
Product LineMoroso 8.5mm Ultra 40 Spark Plug Wire Sets for GM LS/LT Engines
BrandMOROSO
Package Height3.75
Package Width9.25
Package Length9.75 in (247.65 mm)
Weight1.65 PG
Spark Plug Wire Resistance40 ohms/ft.
Spark Plug Wire Diameter (Mm)8.5
SleevedNo
Wire SeriesUltra 40
Wire ColorRed
QuantitySet of 8
AssembledYes
Package Qty1
Package TypeEA
Items You Need
![Spark Plug Socket Set, 3/8 in. Drive [SAE/Metric 5-Piece]](https://www.jegs.com/images/mini_200/500/555/555-80509.jpg)
JEGS
Spark Plug Socket Set, 3/8 in. Drive [SAE/Metric 5-Piece]
Part Number : 555-80509
$1799$20.99
You Save$3.00
JEGS
3/8 in. Drive 5/8 in. Extended Spark Plug Socket
Part Number : 555-W80533
$1399$16.99
You Save$3.00
JEGS
Part Number : 555-80509
$1799$20.99
You Save$3.00
JEGS
Part Number : 555-W80533
$1399$16.99
You Save$3.00
Some parts are not legal for use in California or other states with similar laws / regulations
