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Vehicle Info NeededMOROSOPART NUMBER: 710-73812
Ultra 40 Unsleeved Spark Plug Wire Set Universal
$16299
Ships on 09/08/2026
Lowest Price GuaranteeRed
- Ultra 40 Unsleeved Spark Plug Wire Set
- Universal
- Straight Plug Boots
- Non-HEI & HEI Distributor Boots
- Red
- 8.65mm
Ultra 40 Race Wire; Universal Wire Set; 8.65MM, Red, 8 Cyl, HEI and Non HEI Distr Terminals; Straight Plug BootsUltra 40 Universal Wire Set, Red Wire, Unsleeved, Straight Boots• Moroso Ultra-40 Race Wire is the standard in high performance ignition wire• Optimized EMI/RFI resistance• Used in the highest level of racing applications, from dual mag Top Fuel Cars thru NASCAR Sprint® Cup Series• 8.65mm diameter wire with 40 ohms of resistance per foot• Incorporates a highly engineered spiral wound conductor• Maximizes energy transfer and minimizes electro magnetic interference (EMI) and radio frequency (RF)interference noise
Strong Spark for Less
Ultra 40 Unsleeved Spark Plug Wires are a cost-effective performance wire without heat sleeving. The wires feature a Kevlar core, four times stronger than other aramid fiber cores, which increases the tensile strength of the wire while reducing its center diameter. That allows for the surrounding insulation to be thicker, resulting in higher dielectric efficiency. With only 40-ohms of resistance per foot, these wires will increase power by bringing more spark to the plug. RFI/EMI resistant to eliminate stereo feedback or ignition interference.
Part TypeSpark Plug Wire
Product LineMoroso Ultra 40 Unsleeved Spark Plug Wire Sets
BrandMOROSO
Package Height3.8
Package Width9.2
Package Length9.4
Weight3.04 PG
Part CategoryPerformance Parts
Spark Plug Wire Resistance40 ohms/ft.
Part FitmentSemi Universal
Vendor Part Number73812
Package Qty1
Package TypeEA
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