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    • MSD Super Conductor Spark Plug Wire Set, 8.5mm, Red Jacket | 31859
    • MSD Super Conductor Spark Plug Wire Set, 8.5mm, Red Jacket | 31859
    • MSD Super Conductor Spark Plug Wire Set, 8.5mm, Red Jacket | 31859
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    • Super Conductor Spark Plug Wire Set Amc V8 Engines For Use On Amc V8 Engines, Red Jacket MSD Ignition
    • Super Conductor Spark Plug Wire Set Amc V8 Engines For Use On Amc V8 Engines, Red Jacket MSD Ignition
    • Super Conductor Spark Plug Wire Set Amc V8 Engines For Use On Amc V8 Engines, Red Jacket MSD Ignition
    • Super Conductor Spark Plug Wire Set Amc V8 Engines For Use On Amc V8 Engines, Red Jacket MSD Ignition
    • Super Conductor Spark Plug Wire Set Amc V8 Engines For Use On Amc V8 Engines, Red Jacket MSD Ignition
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    Sale!

    MSD Super Conductor Spark Plug Wire Set, 8.5mm, Red Jacket | 31859

    Vendor: MSD
    Part Number: 31859
    Save $25
    Sale Price $199.95 Regular Price $224.95

    Available to order. In-stock orders typically ship in 1 to 2 business days.

    Not sure it fits your vehicle?
    Email sales@berryperformancesales.com with your year, make, model and engine, and we'll help you check fitment before you order.
    Fast Fulfillment: In-stock orders typically ship within 1 to 2 business days.
    Free Shipping on Orders Over $99 | Excludes freight shipments
    International Shipping Available: email sales@berryperformancesales.com for a quote.
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    MSD's Super Conductor 8.5mm spark plug wires deliver incredibly low resistance without sacrificing electromagnetic interference (EMI) suppression. Each 12-inch section of wire carries only 40-50 ohms of resistance, among the lowest of any helically wound wire, thanks to a copper alloy conductor wound tightly around a ferro-magnetic impregnated center core that chokes EMI inside the wire so it can't interfere with other electronics. The silicone-blend outer sleeve resists high heat, abrasion, and tears, while Dual Crimp terminals secure both the wire sleeve and the conductor for a durable connection.

    Specifications:

    • 1 Cylinder Wire Length: 26 in
    • 2 Cylinder Wire Length: 26 in
    • 3 Cylinder Wire Length: 28 in
    • 4 Cylinder Wire Length: 28 in
    • 5 Cylinder Wire Length: 32 in
    • 6 Cylinder Wire Length: 32 in
    • 7 Cylinder Wire Length: 34 in
    • 8 Cylinder Wire Length: 38 in
    • Category: Ignition
    • Coil Wire Length: 24 in
    • Insulation Color: Red
    • Part Type: Spark Plug Wire Set
    • Product Type: Spark Plug Wires
    • Sub Category: Ignition Wire and Related Components
    • Warning: California Proposition 65
    • Warranty: Manufacturer's Limited 1 Year Warranty
    • Part Number: 31859

    Designed to fit American Motors and Jeep vehicles equipped with an AMC V8 engine, including Javelin, AMX, Matador, Hornet, Gremlin, Concord, Spirit, Wagoneer, Cherokee, and CJ models from 1967-1988.

    FAQ

    What vehicles is this MSD spark plug wire set designed for?

    This set is designed for American Motors and Jeep vehicles equipped with an AMC V8 engine, including Javelin, AMX, Matador, Hornet, Gremlin, Concord, Spirit, Wagoneer, Cherokee, and CJ models from 1967-1988.

    What material is the outer sleeve made from and how durable is it?

    The outer sleeve uses a proprietary silicone and synthetic material blend that resists high heat, abrasion, and tears for long-term durability in the engine bay.

    What is the wire diameter and resistance rating?

    These are 8.5mm Super Conductor wires with only 40-50 ohms of resistance per 12-inch section, among the lowest of any helically wound spark plug wire, for improved spark energy delivery.

    Are the wires precut, or do they need to be trimmed during installation?

    Each wire is precut to the exact length for its cylinder position on the listed application, so no trimming or cutting is required.

    What warranty comes with this MSD wire set?

    This wire set is backed by MSD's manufacturer's limited 1-year warranty.

    Shipping Policy
    • Free shipping on orders over $99 (excludes freight shipments).
    • In-stock orders typically ship within 1 to 2 business days. Weekend and holiday orders are processed the next business day.
    • Orders ship from Defiance, Ohio and a nationwide network of warehouses and manufacturers.
    • Items showing an ETA are not in stock yet. ETAs come from the manufacturer and can change.
    • No P.O. Boxes. International orders need a shipping quote, so email us first.

    Read the full Shipping Policy

    Return Policy
    • 30-day return window from the ship date. Returns must be approved first; email sales@berryperformancesales.com with your order number.
    • Items must be unused, complete and in the original packaging.
    • A 20% restocking fee applies, and return shipping is paid by the buyer.
    • Not returnable: installed or modified parts, opened or used programmers and tuners, custom orders, Open Box, and Clearance or Final Sale items.
    • Damaged, defective or incorrect items must be reported within 48 hours of delivery with photos.

    Read the full Return Policy

    Disclaimer

    All products are sold for off-road use only unless otherwise specified. Buyer assumes all responsibility for installation and operation. Seller is not liable for any incidental, indirect, or consequential damages — including engine failure, labor costs, or vehicle downtime — resulting from the use of any product sold.

    By making a purchase from Berry Performance Sales, you acknowledge and agree to abide by the terms and conditions of these Policies.

    For any questions or concerns, please contact us — we’re always happy to help.

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