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Ships within 48 hours · Estimated delivery Jul 11 - Jul 16
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Description
MSD 31239 Spark Plug Wires Spiral Core 8.5mm Red 90 Deg Boots Universal V8 SetOverview: Routing spark plug wires is an art form. It takes patience and time to route your wires away from the headers, through separators and to the distributor cap. Some wire sets fit perfect, but a lot of people want to build their own so they can route them exactly how they see fit. Our Universal spark plug wire sets come with the spark plug terminal and boot installed with the other end open. Distributor cap boots and terminals are included so
Overview:
Routing spark plug wires is an art form. It takes patience and time to route your wires away from the headers, through separators and to the distributor cap. Some wire sets fit perfect, but a lot of people want to build their own so they can route them exactly how they see fit.
Our Universal spark plug wire sets come with the spark plug terminal and boot installed with the other end open. Distributor cap boots and terminals are included so you can cut the wire to the desired length, then install the terminal with the supplied Mini-Stripper-Crimper. It's a little more work, but in the end it will be worth it.
Features:
Application:
| Year | Make | Model | Submodel | Engine Size |
|---|---|---|---|---|
| 1967 - 1968 | GMC | C15/C1500 Pickup | 4/8 V | |
| 1967 - 1968 | GMC | C15/C1500 Suburban | 4/8 V | |
| 1967 - 1968 | GMC | C25/C2500 Pickup | 4/8 V | |
| 1967 - 1968 | GMC | C25/C2500 Suburban | 4/8 V | |
| 1967 - 1968 | GMC | C35/C3500 Pickup | 4/8 V | |
| 1967 | GMC | G15/G1500 Van | U/K/8 V | |
| 1967 | GMC | G25/G2500 Van | U/K/8 V | |
| 1967 - 1968 | GMC | K15/K1500 Pickup | 4/8 V | |
| 1967 - 1968 | GMC | K25/K2500 Pickup | 4/8 V | |
| 1968 | GMC | C15/C1500 Pickup | U/K/8 V | |
| 1968 | GMC | C15/C1500 Suburban | U/K/8 V | |
| 1968 | GMC | C25/C2500 Pickup | U/K/8 V | |
| 1968 | GMC | C25/C2500 Suburban | U/K/8 V | |
| 1968 | GMC | C35/C3500 Pickup | U/K/8 V | |
| 1968 | GMC | K15/K1500 Pickup | U/K/8 V | |
| 1968 | GMC | K15/K1500 Suburban | 4/8 V | |
| 1968 | GMC | K15/K1500 Suburban | U/K/8 V | |
| 1968 | GMC | K25/K2500 Pickup | U/K/8 V | |
| 1968 | GMC | K25/K2500 Suburban | 4/8 V | |
| 1968 | GMC | K25/K2500 Suburban | U/K/8 V | |
| 1968 | GMC | K35/K3500 Pickup | 4/8 V | |
| 1968 | GMC | K35/K3500 Pickup | U/K/8 V | |
| 1975 - 1976 | Chevrolet | G10 | 4/8 V | |
| 1975 - 1986 | Chevrolet | G20 | Beauville | 4/8 V |
| 1975 - 1986 | Chevrolet | G20 | Chevy Van | 4/8 V |
| 1975 - 1986 | Chevrolet | G30 | Beauville | 4/8 V |
| 1975 - 1986 | Chevrolet | G30 | Chevy Van | 4/8 V |
| 1975 - 1986 | Chevrolet | G30 | Hi-Cube | 4/8 V |
| 1981 - 1986 | Chevrolet | G10 | Sportvan | 4/8 V |
| 1981 - 1985 | Chevrolet | G20 | 4/8 V | |
| 1981 - 1986 | Chevrolet | G30 | Sportvan | 4/8 V |
| 1983 - 1984 | Chevrolet | G30 | Bonaventure | 4/8 V |
| 1986 | Chevrolet | G10 | Bonaventure | 4/8 V |
| 1986 | Chevrolet | G20 | Sportvan | 4/8 V |
Specs:
| Application | Universal V8 |
|---|---|
| Boot Material | Silicone |
| Brand | MSD |
| Color | Red |
| Core | Copper |
| Emission Code | 5 |
| Product Type | Spark Plug Wires |
| Resistance | 40-50 Ohms Per Foot |
| Spark Plug Boot Angle | 90 Degree |
| Warning | California Proposition 65 |
| Warranty | Limited 1 Year Warranty |
| Wire Diameter | 8.5mm |
| Wire Series | 8.5 Super Conductor |
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
4.4 ★★★★★
Based on 263 reviews
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Product Reviews
★★★★★ 4
Cord coverage solution
Color: White
I got this to cover the cabes under my desk. The white color blends well with the desk and the room colors. You can cover a lot of cables with it as long as they are not too heavy or bulky. Make sure to clean the area where you place the hooks or they detach after a while.
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Reviewed in the United States on June 14, 2025
★★★★★ 5
Great little Court management net
Color: White
Super easy and effective alternative to the cord management trays and little shelves you can buy. Took about 5 minutes to set up. Highly recommend
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Reviewed in the United States on January 15, 2026
★★★★★ 5
Nice addition
Color: White
I like it. It’s easy to install and manages all sorts of wires. Really improved the look of the space.
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Reviewed in the United States on October 8, 2025
★★★★★ 5
Great solution
Color: White
It’s embarrassing to say that I love this thing. Nothing falls out, it’s completely hidden, I’m so glad I didn’t go with one of those attachable C shaped wire basket things. It’s absolutely perfect.
We have a motorized sit stand desk.
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Reviewed in the United States on July 29, 2025
★★★★★ 5
Amazing. A bit of a job to set it up but worth it!
Color: Black, Color: Black
Excellent quality. Sturdy and strong. The screws that come with it are awful. Get yourself some different ones.
Takes a while to set it up and get it all measured. I did it while I was setting up my new Flexi-spot E7 Plus standing desk. Wanted to get it all done at the same time. At first. I thought it might be overkill, but I am sooooo glad I did get this. Now my computer moves along with the desk. It looks great. I bet it has improved the air flow around my computer as well.
Looks sleek and cool.
I might have set it a bit too tight around my case and as a result I have to shimmy it to get it out of the holder if I have to do any work on the computers internals. But at least I know it's secure. My suggestion would be to leave a little bit of slack to avoid this in your setup. Maybe like a 1/4 inch would be ok. The pads should hold it in place anyway. May loosen mine up if I find the time.
But it feels totally secure on the desk with no wobble or shaking.
Great product.
Also I'm a woman in my late fifties 😃and I was able to set it all up on my own. So don't be intimidated ladies, you can do it too.
I also bought two of the ultimate set up cable management trays. Great products.
Note for anyone from the Ultimate Setup company who might read this. Please provide better quality wood screws and some extra ones) I stripped three of the cheap ones that came with this. And it took forever to drill them in because they weren't strong enough. Then it would be perfect.
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Reviewed in the United States on November 17, 2025