Moroso Ultra 40 Unsleeved Custom-Fit Wire Sets

4.54 out of 5 stars 140 Customer Reviews

The new standard in ignition wires for racers on a budget! Moroso Ultra 40 unsleeved custom-fit ignition wire sets are the most powerful and RFI/EMI-resistant wires

The new standard in ignition wires for racers on a budget! Moroso Ultra 40 unsleeved custom-fit ignition wire sets are the most powerful and RFI/EMI-resistant wires available for racing today. Plus, their closely woven fiberglass, silicone-impregnated insulation provides up to 8,000 extra volts of protection.

Features:

* Kevlar® core that's four times stronger than Aramid cores
* Class-leading 40 ohms of resistance per foot
* Nickel copper alloy conductors for superior spark energy transfer
* Extra-thick EPDM layer for greater dielectric strength
* High-temperature silicone boots that can withstand heat up

Showing In Stock Items. Show All 10 Items.

Results 1 - 10 of 10

Moroso Ultra 40 Unsleeved Custom-Fit Wire Sets 73682

Spark Plug Wires, Ultra 40, Spiral Core, 8.65mm, Red, 180 Degree Boots, Chevy, Pontiac, 5.7L, 6.2L, Set

Part Number: MOR-73682

5.0 out of 5 stars ( 9 )

Estimated Ship Date: Today

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Moroso Ultra 40 Unsleeved Custom-Fit Wire Sets 73733

Spark Plug Wire Set, Ultra 40 Race Wire, Unsleeved, Fits Moroso Part No.72394, LS2 and Later Coils, GM LS Coil Mount Bracket, Set

Part Number: MOR-73733

Not Yet Reviewed

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Moroso Ultra 40 Unsleeved Custom-Fit Wire Sets 73703

Spark Plug Wires, Ultra 40, Spiral Core, 7.0mm, Black, 180 Degree Boots, Chevy, Set

Part Number: MOR-73703

Not Yet Reviewed

Estimated Ship Date: Jan 12, 2026 if ordered today

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Estimated Ship Date: Jan 12, 2026 if ordered today

Moroso Ultra 40 Unsleeved Custom-Fit Wire Sets 73681

Spark Plug Wires, Ultra 40, Spiral Core, 8.65mm, Red, 180 Degree Boots, Chevy, Pontiac, 5.7L, Set

Part Number: MOR-73681

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

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Moroso Ultra 40 Unsleeved Custom-Fit Wire Sets 73660

Spark Plug Wires, Ultra 40, Assembled, Spiral Core, 8.65mm, Blue, Straight, Chevy, Pontiac, 5.7L LS, Set

Part Number: MOR-73660

2.0 out of 5 stars ( 1 )

Estimated Ship Date: Jan 12, 2026 if ordered today

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Estimated Ship Date: Jan 12, 2026 if ordered today

Moroso Ultra 40 Unsleeved Custom-Fit Wire Sets 73680

Spark Plug Wires, Ultra 40, Spiral Core, 8.65mm, Red, 180 Degree Boots, Chevy, Pontiac, 5.7L, Set

Part Number: MOR-73680

Not Yet Reviewed

Estimated Ship Date: Jan 12, 2026 if ordered today

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Estimated Ship Date: Jan 12, 2026 if ordered today

Moroso Ultra 40 Unsleeved Custom-Fit Wire Sets 73661

Spark Plug Wires, Ultra 40, Spiral Core, 8.65mm, Blue, 180 Degree Boots, Chevy, Pontiac, 5.7L, Set

Part Number: MOR-73661

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Jan 12, 2026 if ordered today

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Estimated Ship Date: Jan 12, 2026 if ordered today

Moroso Ultra 40 Unsleeved Custom-Fit Wire Sets 73662

Spark Plug Wires, Ultra 40, Spiral Core, 8.65mm, Blue, 180 Degree Boots, Chevy, Pontiac, 5.7L, 6.2L, Set

Part Number: MOR-73662

4.5 out of 5 stars ( 2 )

Estimated Ship Date: Jan 12, 2026 if ordered today

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Estimated Ship Date: Jan 12, 2026 if ordered today

Moroso Ultra 40 Unsleeved Custom-Fit Wire Sets 73705

Spark Plug Wires, Ultra 40, Spiral Core, 8.65mm, Black, 180 Degree Boots, Chevy, Pontiac, 5.7L, 6.2L, Set

Part Number: MOR-73705

Not Yet Reviewed

Estimated Ship Date: Jan 12, 2026 if ordered today

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Estimated Ship Date: Jan 12, 2026 if ordered today

Moroso Ultra 40 Unsleeved Custom-Fit Wire Sets 73704

Spark Plug Wires, Ultra 40, Spiral Core, 7.0mm, Black, 180 Degree Boots, Chevy, Set

Part Number: MOR-73704

Not Yet Reviewed

Estimated Ship Date: Jan 12, 2026 if ordered today

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Estimated Ship Date: Jan 12, 2026 if ordered today

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