Moroso Ultra 40 Race Ignition Wire Sets

4.73 out of 5 stars 135 Customer Reviews

Moroso new Ultra 40 Race ignition wire sets are the most powerful and RFI/EMI-resistant wires available for racing today. Features of these 8.65mm wires include a K

Moroso new Ultra 40 Race ignition wire sets are the most powerful and RFI/EMI-resistant wires available for racing today. Features of these 8.65mm wires include a Kevlar® core that's four times stronger than Aramid cores, a class-leading 40 ohms of resistance per foot, nickel copper alloy conductors for superior spark energy transfer, an extra-thick EPDM layer for greater dielectric strength, high-temperature silicone boots that can withstand heat up to 600 degrees, and locking stainless steel plug terminals. Plus, their closely woven fiberglass, silicone-impregnated insulation provides up to 8,000 extra volts of pro

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Moroso Ultra 40 Race Ignition Wire Sets 73820

Spark Plug Wires, Ultra 40, Spiral Core, 8.65mm, Black, 90 Degree Boots, Chevy, Set

Part Number: MOR-73820

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Tomorrow

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Moroso Ultra 40 Race Ignition Wire Sets 73616

Spark Plug Wires, Ultra 40, Spiral Core, 8.65mm, Blue, 90 Degree Boots, Under Header, BBC, HEI, V8, Set

Part Number: MOR-73616

5.0 out of 5 stars ( 21 )

Estimated Ship Date: Tomorrow

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Moroso Ultra 40 Race Ignition Wire Sets 73607

Spark Plug Wires, Ultra 40, Spiral Core, 8.65mm, Blue, 90 Degree Boots, GM, V8, Set

Part Number: MOR-73607

4.33 out of 5 stars ( 18 )

Estimated Ship Date: Tomorrow

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Moroso Ultra 40 Race Ignition Wire Sets 73822

Spark Plug Wires, Assembled, Spiral Core, 8.65mm, Black, Male/HEI, 135 Degree Plug Boots, Ford, 351W, Set

Part Number: MOR-73822

4.8 out of 5 stars ( 5 )

Estimated Ship Date: Tomorrow

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Moroso Ultra 40 Race Ignition Wire Sets 73630

Spark Plug Wires, Ultra 40, Spiral Core, 8.65mm, Blue, 135 Degree Boots, Ford, Mercury, 289/302, Set

Part Number: MOR-73630

4.67 out of 5 stars ( 3 )

Estimated Ship Date: Tomorrow

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Moroso Ultra 40 Race Ignition Wire Sets 73615

Spark Plug Wires, Ultra 40, Spiral Core, 8.65mm, Blue, Straight Boots, Chevy, GMC, 454, V8, Set

Part Number: MOR-73615

5.0 out of 5 stars ( 5 )

Estimated Ship Date: Tomorrow

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Moroso Ultra 40 Race Ignition Wire Sets 73602

Spark Plug Wires, Ultra 40, Spiral Core, 8.65mm, Blue, 90 Degree Boots, GM, V8, Set

Part Number: MOR-73602

4.79 out of 5 stars ( 14 )

Estimated Ship Date: Tomorrow

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Moroso Ultra 40 Race Ignition Wire Sets 73833

Spark Plug Wires, Ultra 40 Race, Assembled, Male/HEI, Spiral Core, 8.65mm, 90/135 Degree, Black, Ford, 4.7L, 4.8L, 5.0L, Set

Part Number: MOR-73833

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Tomorrow

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Moroso Ultra 40 Race Ignition Wire Sets 73835

Spark Plug Wires, Ultra 40 Race, Assembled, HEI, Spiral Core, 8.65mm, Black, Ford, Mercury, 429, 460, Set

Part Number: MOR-73835

Not Yet Reviewed

Estimated Ship Date: Tomorrow

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Moroso Ultra 40 Race Ignition Wire Sets 73824

Spark Plug Wires, Ultra 40 Race, Assembled, Spiral Core, 8.65mm, Black, Chevy, GMC, Small Block, Set

Part Number: MOR-73824

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Tomorrow

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Moroso Ultra 40 Race Ignition Wire Sets 73832

Spark Plug Wire Sets, Ultra 40 Race Ignition Wires, Assembled, Male/HEI, Spiral Core, Black, Fits GM HEI Crab-style Cap Only, Chevrolet, GMC, V8, Set

Part Number: MOR-73832

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Tomorrow

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Moroso Ultra 40 Race Ignition Wire Sets 73626

Spark Plug Wires, Ultra 40, Spiral Core, 8.65mm, Blue, 135 Degree Boots, Ford, Mercury, 351W, Set

Part Number: MOR-73626

4.0 out of 5 stars ( 5 )

Estimated Ship Date: Tomorrow

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Moroso Ultra 40 Race Ignition Wire Sets 73819

Spark Plug Wires, Assembled, Spiral Core, 8.65mm, Black, Straight Plug Boots, Chevy, GMC, Big Block, Set

Part Number: MOR-73819

4.0 out of 5 stars ( 2 )

Estimated Ship Date: Tomorrow

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Moroso Ultra 40 Race Ignition Wire Sets 73843

Spark Plug Wires, Ultra 40, Spiral Core, 8.65mm, Black, Chevy, Big Block, Jesel Front Drive Distributor, Set

Part Number: MOR-73843

Not Yet Reviewed

Estimated Ship Date: Tomorrow

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Moroso Ultra 40 Race Ignition Wire Sets 73628

Spark Plug Wires, Ultra 40, Spiral Core, 8.65mm, Blue, 135 Degree Boots, Ford, Mercury, 460, Set

Part Number: MOR-73628

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Tomorrow

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Moroso Ultra 40 Race Ignition Wire Sets 73622

Spark Plug Wires, Ultra 40, Spiral Core, 8.65mm, Blue, 90 Degree Boots, Under Header, Crab Cap, BBC, Set

Part Number: MOR-73622

4.5 out of 5 stars ( 2 )

Estimated Ship Date: Tomorrow

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Moroso Ultra 40 Race Ignition Wire Sets 73842

Spark Plug Wires, Ultra 40, Spiral Core, 8.65mm, Black, Chevy, Small Block, Jesel Front Drive Distributor, Set

Part Number: MOR-73842

4.5 out of 5 stars ( 2 )

Estimated Ship Date: Tomorrow

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Moroso Ultra 40 Race Ignition Wire Sets 73631

Spark Plug Wire Sets, Ultra 40 Race Ignition Wire Sets, Assembled, Male/HEI, Spiral Core, Blue Wires, 8.65mm Diameter, Ford, Mercury, 4.7L, 5.0L, Set

Part Number: MOR-73631

Not Yet Reviewed

Estimated Ship Date: Mar 20, 2026 if ordered today

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Estimated Ship Date: Mar 20, 2026 if ordered today

Moroso Ultra 40 Race Ignition Wire Sets 73600

Spark Plug Wires, Ultra 40, Spiral Core, 8.65mm, Blue, 90 Degree Boots, GM/Studebaker, V8, Set

Part Number: MOR-73600

Not Yet Reviewed

Estimated Ship Date: Tomorrow

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Moroso Ultra 40 Race Ignition Wire Sets 28313

Spark Plug Wires, Ultra 40 Race, Assembled, Socket, 90 degree, Black, 8.65mm, Spiral Core, Pair

Part Number: MOR-28313

Not Yet Reviewed

Estimated Ship Date: Tomorrow

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Estimated Ship Date: Tomorrow

Moroso Ultra 40 Race Ignition Wire Sets 73834

Spark Plug Wires, Ultra 40 Race, Assembled, Female/Socket, Spiral Core, 8.65mm, Black, Ford, Mercury, 4.7L, 5.0L, Set

Part Number: MOR-73834

Not Yet Reviewed

Estimated Ship Date: Mar 18, 2026 if ordered today

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Estimated Ship Date: Mar 18, 2026 if ordered today

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