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Moroso

Moroso Ultra 40 Unsleeved Custom-Fit Wire Sets

4.54 out of 5 stars 138 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
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 to 600 degrees * Locking stainless steel plug terminals

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Results 1 - 25 of 61

Moroso Ultra 40 Unsleeved Custom-Fit Wire Sets 73729

Moroso Ultra 40 Unsleeved Custom-Fit Wire Sets 73729

Moroso Ultra 40 Unsleeved Custom-Fit Wire Sets 73729

Spark Plug Wires, Ultra 40, Spiral Core, 8.65mm, Black, Chevy, Big Block, Wires under Header, Set

Part Number: MOR-73729

4.69 out of 5 stars ( 13 )

Estimated Ship Date: Monday 10/20/2025

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Estimated Ship Date: Monday 10/20/2025

Moroso Ultra 40 Unsleeved Custom-Fit Wire Sets 73682

Moroso Ultra 40 Unsleeved Custom-Fit Wire Sets 73682

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: Monday 10/20/2025

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Estimated Ship Date: Monday 10/20/2025

Moroso Ultra 40 Unsleeved Custom-Fit Wire Sets 73709

Moroso Ultra 40 Unsleeved Custom-Fit Wire Sets 73709

Moroso Ultra 40 Unsleeved Custom-Fit Wire Sets 73709

Spark Plug Wire Sets, Ultra 40 Unsleeved Custom-Fit, Assembled, Male/HEI, Black, Under the Header, Buick, Chevy, Olds, Pontiac, Small Block Chevy, Set

Part Number: MOR-73709

4.14 out of 5 stars ( 7 )

Estimated Ship Date: Monday 10/20/2025

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Estimated Ship Date: Monday 10/20/2025

Moroso Ultra 40 Unsleeved Custom-Fit Wire Sets 73675

Moroso Ultra 40 Unsleeved Custom-Fit Wire Sets 73675

Moroso Ultra 40 Unsleeved Custom-Fit Wire Sets 73675

Spark Plug Wires, Ultra 40, Spiral Core, 8.65mm, Blue, 45 Degree Boots, Ford, 289/302, Set

Part Number: MOR-73675

4.5 out of 5 stars ( 12 )

Estimated Ship Date: Monday 10/20/2025

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Estimated Ship Date: Monday 10/20/2025

Moroso Ultra 40 Unsleeved Custom-Fit Wire Sets 73718

Moroso Ultra 40 Unsleeved Custom-Fit Wire Sets 73718

Moroso Ultra 40 Unsleeved Custom-Fit Wire Sets 73718

Spark Plug Wires, Ultra 40 Unsleeved Custom-Fit, Assembled, Spiral Core, 8.65mm, Black, Ford, 289, 302, Set

Part Number: MOR-73718

4.0 out of 5 stars ( 3 )

Estimated Ship Date: Monday 10/20/2025

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Buy these Plug Wires and get a pair of Mechanics Gloves!

Estimated Ship Date: Monday 10/20/2025

Moroso Ultra 40 Unsleeved Custom-Fit Wire Sets 73728

Moroso Ultra 40 Unsleeved Custom-Fit Wire Sets 73728

Moroso Ultra 40 Unsleeved Custom-Fit Wire Sets 73728

Spark Plug Wires, Ultra 40, Spiral Core, 8.65mm, Black, Chevy, Big Block, Wires over Valve Cover, Set

Part Number: MOR-73728

4.77 out of 5 stars ( 13 )

Estimated Ship Date: Monday 10/20/2025

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Buy these Plug Wires and get a pair of Mechanics Gloves!

Estimated Ship Date: Monday 10/20/2025

Moroso Ultra 40 Unsleeved Custom-Fit Wire Sets 73696

Moroso Ultra 40 Unsleeved Custom-Fit Wire Sets 73696

Moroso Ultra 40 Unsleeved Custom-Fit Wire Sets 73696

Spark Plug Wires, Ultra 40 Unsleeved Custom-Fit, Assembled, Spiral Core, 8.65mm, Red, Ford, 289, 302, Set

Part Number: MOR-73696

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 10/20/2025

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Buy these Plug Wires and get a pair of Mechanics Gloves!

Estimated Ship Date: Monday 10/20/2025

Moroso Ultra 40 Unsleeved Custom-Fit Wire Sets 73841

Moroso Ultra 40 Unsleeved Custom-Fit Wire Sets 73841

Moroso Ultra 40 Unsleeved Custom-Fit Wire Sets 73841

Spark Plug Wires, Ultra 40, Spiral Core, 8.65mm, Black, Mopar, Early Hemi, Set

Part Number: MOR-73841

3.5 out of 5 stars ( 4 )

Estimated Ship Date: Monday 10/20/2025

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Buy these Plug Wires and get a pair of Mechanics Gloves!

Estimated Ship Date: Monday 10/20/2025

Moroso Ultra 40 Unsleeved Custom-Fit Wire Sets 73712

Moroso Ultra 40 Unsleeved Custom-Fit Wire Sets 73712

Moroso Ultra 40 Unsleeved Custom-Fit Wire Sets 73712

Spark Plug Wires, Ultra 40 Unsleeved Custom-Fit, Assembled, Spiral Core, 8.65mm, Black, Chevy, 454, Set

Part Number: MOR-73712

Not Yet Reviewed

Estimated Ship Date: Monday 10/20/2025

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Special Offer

Buy these Plug Wires and get a pair of Mechanics Gloves!

Estimated Ship Date: Monday 10/20/2025

Moroso Ultra 40 Unsleeved Custom-Fit Wire Sets 73733

Moroso Ultra 40 Unsleeved Custom-Fit Wire Sets 73733

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

Estimated Ship Date: Monday 10/20/2025

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Special Offer

Buy these Plug Wires and get a pair of Mechanics Gloves!

Estimated Ship Date: Monday 10/20/2025

Moroso Ultra 40 Unsleeved Custom-Fit Wire Sets 73707

Moroso Ultra 40 Unsleeved Custom-Fit Wire Sets 73707

Moroso Ultra 40 Unsleeved Custom-Fit Wire Sets 73707

Spark Plug Wires, Ultra 40 Unsleeved Custom-Fit, Assembled, Spiral Core, 8.65mm, Black, Chevy, Small Block, Set

Part Number: MOR-73707

5.0 out of 5 stars ( 3 )

Estimated Ship Date: Monday 10/20/2025

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Special Offer

Buy these Plug Wires and get a pair of Mechanics Gloves!

Estimated Ship Date: Monday 10/20/2025

Moroso Ultra 40 Unsleeved Custom-Fit Wire Sets 73719

Moroso Ultra 40 Unsleeved Custom-Fit Wire Sets 73719

Moroso Ultra 40 Unsleeved Custom-Fit Wire Sets 73719

Spark Plug Wires, Ultra 40 Unsleeved Custom-Fit, Assembled, Spiral Core, 8.65mm, Black, Ford, 289, 302, Set

Part Number: MOR-73719

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Monday 10/20/2025

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Buy these Plug Wires and get a pair of Mechanics Gloves!

Estimated Ship Date: Monday 10/20/2025

Moroso Ultra 40 Unsleeved Custom-Fit Wire Sets 73686

Moroso Ultra 40 Unsleeved Custom-Fit Wire Sets 73686

Moroso Ultra 40 Unsleeved Custom-Fit Wire Sets 73686

Spark Plug Wires, Ultra 40, Spiral Core, 8.65mm, Red, 90 Degree Boots, GM with Chevy, Small Block, Set

Part Number: MOR-73686

4.75 out of 5 stars ( 4 )

Estimated Ship Date: Monday 10/20/2025

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Buy these Plug Wires and get a pair of Mechanics Gloves!

Estimated Ship Date: Monday 10/20/2025

Moroso Ultra 40 Unsleeved Custom-Fit Wire Sets 73695

Moroso Ultra 40 Unsleeved Custom-Fit Wire Sets 73695

Moroso Ultra 40 Unsleeved Custom-Fit Wire Sets 73695

Ultra 40 Race Wire; Unsleeved, Ford 289-302; HEI Style Cap, Red, Set

Part Number: MOR-73695

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Monday 10/20/2025

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Buy these Plug Wires and get a pair of Mechanics Gloves!

Estimated Ship Date: Monday 10/20/2025

Moroso Ultra 40 Unsleeved Custom-Fit Wire Sets 73676

Moroso Ultra 40 Unsleeved Custom-Fit Wire Sets 73676

Moroso Ultra 40 Unsleeved Custom-Fit Wire Sets 73676

Spark Plug Wires, Ultra 40, Spiral Core, 8.65mm, Blue, 45 Degree Boots, Ford, 289/302, Set

Part Number: MOR-73676

4.77 out of 5 stars ( 13 )

Estimated Ship Date: Monday 10/20/2025

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Buy these Plug Wires and get a pair of Mechanics Gloves!

Estimated Ship Date: Monday 10/20/2025

Moroso Ultra 40 Unsleeved Custom-Fit Wire Sets 73666

Moroso Ultra 40 Unsleeved Custom-Fit Wire Sets 73666

Moroso Ultra 40 Unsleeved Custom-Fit Wire Sets 73666

Spark Plug Wires, Ultra 40, Spiral Core, 8.65mm, Blue, 90 Degree Boots, GM with Chevy, Small Block, Set

Part Number: MOR-73666

4.75 out of 5 stars ( 4 )

Estimated Ship Date: Monday 10/20/2025

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Special Offer

Buy these Plug Wires and get a pair of Mechanics Gloves!

Estimated Ship Date: Monday 10/20/2025

Moroso Ultra 40 Unsleeved Custom-Fit Wire Sets 73684

Moroso Ultra 40 Unsleeved Custom-Fit Wire Sets 73684

Moroso Ultra 40 Unsleeved Custom-Fit Wire Sets 73684

Spark Plug Wires, Ultra 40, Spiral Core, 8.65mm, Red, 90 Degree Boots, GM with Chevy, Small Block, Set

Part Number: MOR-73684

4.15 out of 5 stars ( 13 )

Estimated Ship Date: Monday 10/20/2025

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Special Offer

Buy these Plug Wires and get a pair of Mechanics Gloves!

Estimated Ship Date: Monday 10/20/2025

Moroso Ultra 40 Unsleeved Custom-Fit Wire Sets 73716

Moroso Ultra 40 Unsleeved Custom-Fit Wire Sets 73716

Moroso Ultra 40 Unsleeved Custom-Fit Wire Sets 73716

Spark Plug Wires, Ultra 40 Unsleeved Custom-Fit, Assembled, Spiral Core, 8.65mm, Black, Ford, 351W, Set

Part Number: MOR-73716

4.5 out of 5 stars ( 2 )

Estimated Ship Date: Monday 10/20/2025

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Special Offer

Buy these Plug Wires and get a pair of Mechanics Gloves!

Estimated Ship Date: Monday 10/20/2025

Moroso Ultra 40 Unsleeved Custom-Fit Wire Sets 73681

Moroso Ultra 40 Unsleeved Custom-Fit Wire Sets 73681

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: Monday 10/20/2025

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Special Offer

Buy these Plug Wires and get a pair of Mechanics Gloves!

Estimated Ship Date: Monday 10/20/2025

Moroso Ultra 40 Unsleeved Custom-Fit Wire Sets 73717

Moroso Ultra 40 Unsleeved Custom-Fit Wire Sets 73717

Moroso Ultra 40 Unsleeved Custom-Fit Wire Sets 73717

Spark Plug Wires, Ultra 40 Unsleeved Custom-Fit, Assembled, Spiral Core, 8.65mm, Black, Ford, 429, 460, Set

Part Number: MOR-73717

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Monday 10/20/2025

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Special Offer

Buy these Plug Wires and get a pair of Mechanics Gloves!

Estimated Ship Date: Monday 10/20/2025

Moroso Ultra 40 Unsleeved Custom-Fit Wire Sets 73688

Moroso Ultra 40 Unsleeved Custom-Fit Wire Sets 73688

Moroso Ultra 40 Unsleeved Custom-Fit Wire Sets 73688

Spark Plug Wires, Ultra 40, Spiral Core, 8.65mm, Red, 180 Degree Boots, Chevy, Big Block, Set

Part Number: MOR-73688

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Monday 10/20/2025

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Special Offer

Buy these Plug Wires and get a pair of Mechanics Gloves!

Estimated Ship Date: Monday 10/20/2025

Moroso Ultra 40 Unsleeved Custom-Fit Wire Sets 73726

Moroso Ultra 40 Unsleeved Custom-Fit Wire Sets 73726

Moroso Ultra 40 Unsleeved Custom-Fit Wire Sets 73726

Spark Plug Wires, Ultra 40, Spiral Core, 8.65mm, Black, Chevy, Small Block, Wires under Headers, Set

Part Number: MOR-73726

4.5 out of 5 stars ( 2 )

Estimated Ship Date: Monday 10/20/2025

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Special Offer

Buy these Plug Wires and get a pair of Mechanics Gloves!

Estimated Ship Date: Monday 10/20/2025

Moroso Ultra 40 Unsleeved Custom-Fit Wire Sets 73664

Moroso Ultra 40 Unsleeved Custom-Fit Wire Sets 73664

Moroso Ultra 40 Unsleeved Custom-Fit Wire Sets 73664

Spark Plug Wires, Ultra 40, Spiral Core, 8.65mm, Blue, 90 Degree Boots, GM with Chevy, Small Block, Set

Part Number: MOR-73664

4.5 out of 5 stars ( 2 )

Estimated Ship Date: Monday 10/20/2025

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Special Offer

Buy these Plug Wires and get a pair of Mechanics Gloves!

Estimated Ship Date: Monday 10/20/2025

Moroso Ultra 40 Unsleeved Custom-Fit Wire Sets 73690

Moroso Ultra 40 Unsleeved Custom-Fit Wire Sets 73690

Moroso Ultra 40 Unsleeved Custom-Fit Wire Sets 73690

Spark Plug Wires, Ultra 40, Assembled, Spiral Core, 8.65mm, Red, Socket, 90 degree, Chevy, Big Block, Set

Part Number: MOR-73690

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 10/20/2025

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Special Offer

Buy these Plug Wires and get a pair of Mechanics Gloves!

Estimated Ship Date: Monday 10/20/2025

Moroso Ultra 40 Unsleeved Custom-Fit Wire Sets 73708

Moroso Ultra 40 Unsleeved Custom-Fit Wire Sets 73708

Moroso Ultra 40 Unsleeved Custom-Fit Wire Sets 73708

Spark Plug Wires, Ultra 40 Unsleeved Custom-Fit, Assembled, Spiral Core, 8.65mm, Black, Chevy, Small Block, Set

Part Number: MOR-73708

Not Yet Reviewed

Estimated Ship Date: Monday 10/20/2025

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Special Offer

Buy these Plug Wires and get a pair of Mechanics Gloves!

Estimated Ship Date: Monday 10/20/2025

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