- Ignition & Electrical
- Spark Plug Wire
- Spark Plug Wires
- Moroso Ultra 40 Unsleeved Spark Plug Wire Sets
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.
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Black
Ultra 40 Unsleeved Spark Plug Wire Set Big Block Chevy with GM LS2 & Later Ignition Coils Coil-Near-Plug System Black 8.000 mm Set of 8
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$98.99
Estimated to ship direct from manufacturer on 01/22/25, pending manufacturer availability.
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Ultra 40 Unsleeved Spark Plug Wire SetBig Block Chevy Over Valve Cover Non-HEI Black 8.65mm
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$93.99
Estimated to ship direct from manufacturer on 01/31/25, pending manufacturer availability.
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Ultra 40 Unsleeved Spark Plug Wire Set Big Block Chevy Under Header Non-HEI Black 8.65mm
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$99.99
Estimated to ship direct from manufacturer on 01/27/25, pending manufacturer availability.
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Ultra 40 Unsleeved Spark Plug Wire Set Big Block Chevy Under Header Non-HEI Crab Cap Black 8.65mm
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$99.99
Estimated to ship direct from manufacturer in 24hrs
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Ultra 40 Unsleeved Spark Plug Wire Set Big Block Chevy Under Header HEI Crab Cap Black 8.65mm
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$99.99
Estimated to ship direct from manufacturer in 24hrs
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Ultra 40 Unsleeved Spark Plug Wire Set Big Block Chevy Over Valve Covers HEI Style Cap Black 8.65mm
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$116.99
(2)
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Ultra 40 Unsleeved Spark Plug Wire Set Big Block Chevy Under Header HEI Style Cap Black 8.65mm
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$101.99
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$112.99
Estimated to ship direct from manufacturer on 01/22/25, pending manufacturer availability.
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$99.99
Estimated to ship direct from manufacturer on 02/06/25, pending manufacturer availability.
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$99.99
Estimated to ship direct from manufacturer on 01/22/25, pending manufacturer availability.
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Ultra 40 Unsleeved Spark Plug Wire Set GM LS Series Coil-On Plug Medium Length (1.75" Longer) Black 8.65mm
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$116.99
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Ultra 40 Unsleeved Spark Plug Wire SetSmall Block Chevy Over Valve Cover Non-HEI Black 8.65mm
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$105.99
Estimated to ship direct from manufacturer in 24hrs
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$285.99
Estimated to ship direct from manufacturer on 03/28/25, pending manufacturer availability.
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Ultra 40 Unsleeved Spark Plug Wire Set Small Block Chevy Over Valve Cover HEI Style Cap Black 8.65mm
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$99.99
Estimated to ship direct from manufacturer in 24hrs
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Ultra 40 Unsleeved Spark Plug Wire Set Small Block Chevy Under Header HEI Style Cap Black 8.65mm
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$99.99
Estimated to ship direct from manufacturer in 24hrs
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Ultra 40 Unsleeved Spark Plug Wire SetSmall Block Chevy LS1 Coil on Plug 8'' Long Black 7mm
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$99.99
Estimated to ship direct from manufacturer in 24hrs
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Ultra 40 Unsleeved Spark Plug Wire SetSmall Block Chevy LS1 Coil on Plug 12'' Long Black 7mm
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$99.99
Estimated to ship direct from manufacturer in 24hrs
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Ultra 40 Unsleeved Spark Plug Wire SetSmall Block Chevy LS1 Coil on Plug 9-3/4'' Long Black 7mm
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$93.99
Estimated to ship direct from manufacturer in 24hrs
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$151.99
Estimated to ship direct from manufacturer on 01/23/25, pending manufacturer availability.
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Blue
Ultra 40 Unsleeved Spark Plug Wire SetBig Block Chevy Over Valve Cover Non-HEI Blue 8.65mm
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$93.99
Estimated to ship direct from manufacturer in 24hrs
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$99.99
Estimated to ship direct from manufacturer on 01/22/25, pending manufacturer availability.
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