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Ships within 48 hours · Estimated delivery Sep 18 - Sep 23
For Your Every Summer RSVP, with Code: SUMMER15
Description
Universal MSD 8.5mm Super Conductor Spark Plug Wire Set 900 # MSD31239Universal MSD 8. 5mm Super Conductor Spark Plug Wire Set 900 # MSD31239 Spark Plug Wires, Super Conductor, Spiral Core, 8. 5mm, Red, 90 Degree Boots, Universal, L8 V8, Set Assembled: No Distributor Terminal Ends: Male HEI and Female Socket Distributor Boot Color: Gray Distributor Boot Material: Silicone Spark Plug Boot Ends: Eight 90 degree Spark Plug Boot Color: Gray Spark Plug Boot Material: Silicone Wire Color: Red Diameter (mm): 8. 50mm RFI
Universal MSD 8.5mm Super Conductor Spark Plug Wire Set 900 # MSD31239Spark Plug Wires, Super Conductor, Spiral Core, 8.5mm, Red, 90 Degree Boots, Universal, L8/V8, Set
Assembled:No
Distributor Terminal Ends:Male/HEI and Female/Socket
Distributor Boot Color:Gray
Distributor Boot Material:Silicone
Spark Plug Boot Ends:Eight 90 degree
Spark Plug Boot Color:Gray
Spark Plug Boot Material:Silicone
Wire Color:Red
Diameter (mm):8.50mm
RFI Suppression:Yes
Coil Wire Included:Yes
Conductor Style:Spiral core
Spark Plug Wire Resistance:50 ohms/ft.
Quantity:Sold as a set.
Notes:Includes vice mount wire crimping tool.
MSD 8.5mm Super Conductor spark plug wire sets feature a special helically wound core that has just 40-50 ohms of resistance per footbut with an RFI suppression equal to a 1,500 ohm wire. In fact, each foot of finished wire includes 40 ft. of tightly wound copper for superior conductivity. This winding procedure, combined with a ferro-magnetic impregnated center core, produces an extremely effective Electro Magnetic Interference "choke." This choke, or suppression capability, keeps the EMI inside the wire where it cannot interfere with other electronics on your vehicle. A tough, 8.5mm synthetic/silicone jacket over an extra-heavy glass braid and dielectric insulator keeps the current guided to the plugs. Underneath the high-temperature boots, dual crimp stainless steel terminals feature snap-locks to ensure a secure fit. Each set comes with clip-on cylinder markers for easy identification. MSD's 8.5mm Super Conductor wire sets are available in custom or universal-fit applications.
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.1 ★★★★★
Based on 27 reviews
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Product Reviews
★★★★★ 1
Bad, very bad
Size: 8.5, Color: Cognac
They are plastic. The quality is zero bro then I send it to me my refund.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 5, 2026
★★★★★ 4
Run big
Size: 11, Color: Black
Worked for what they were needed for, they run big.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 21, 2025
★★★★★ 5
Slip-on ready and great quality
Size: 9, Color: Black
These shoes were stuff for the first half hour but then feel great. Well worth the chance and money. Great quality and slip-on easy
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 22, 2026
★★★★★ 5
Great buy
Size: 11, Color: Tan
Great fit comfortable look good
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 12, 2026
★★★★★ 5
Great shoes
Size: 14 Wide, Color: Black
My shoes look good and feel good and now I’m going to purchase the brown pair I saw
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 24, 2026
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