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Ships within 48 hours · Estimated delivery Jul 14 - Jul 19
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For Your Every Summer RSVP, with Code: SUMMER15
Description
MSD 31233 8.5mm Super Conductor Spark Plug Wire 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 | Black |
| Core | Copper |
| Emission Code | 5 |
| Product Type | Spark Plug Wire |
| 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
4.5 ★★★★★
Based on 122 reviews
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Product Reviews
★★★★★ 3
Effective but may be uncomfortable
Color: Pink & Beige, Size: Medium/Large(fits size 8 to 11)
I have eczema on my feet and use a prescription cream that I leave on overnight. I often have a problem sleeping in socks but the silicone feels cool on my feet. The only drawback I have is the opening of the socks feel very tight around my ankles making them uncomfortable on me. I wish the opening was a bit more flexible.
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Reviewed in the United States on September 20, 2025
★★★★★ 1
Burned my already sensitive feet, too big
Color: Pink & Beige, Size: Medium/Large(fits size 8 to 11)
Feels icky, and the heat gets trapped and literally felt like my feet were being burned by these. The bottoms of these feel prickly and they are way too big. You have to sit still and cannot walk in them.
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Reviewed in the United States on April 22, 2026
★★★★★ 5
Just as good as paraffin wax
Color: Pink & Beige, Size: Medium/Large(fits size 8 to 11)
I might prefer these socks over paraffin wax. They are comfy and very moisturizing. I use these socks once a week to keep the heels and soles of my feet moisturized between pedicures. I rinse with warm, soapy water then hang to dry. They are hard to walk in, but there's a saying printed in the socks that's says something to the effect of "take a break, stay off your feet" lol I love that as a reminder to put my feet up and relax
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Reviewed in the United States on April 9, 2026
★★★★★ 5
Love these!
Color: Pink & Beige, Size: Small(fits up to size 7)
Love these! As I write this review, I’m sitting in my recliner with these on. I have had other silicone socks in the past and would like to share a few of the things that I have learned.
These fit great! The others were 2-3 sizes too big because you could not order a size. I wear a size 7 women’s shoe. I got the smaller size. I walked around my apartment in my old ones and they got kinda yucky. Now, I sit in my recliner, put them on and chill for a few hours. I now take them off and put in a ziplock bag so they stay nice and clean (no cat hair!). I use them once a week usually on Saturday or Sunday as I’m a working girl. Also, I use Auqaphor before I put them on and put cotton socks on after I’m finished. Your feet will be SO soft. This is not a one and done…I do this every week especially during sandal season! I know this was lengthy and I hope you got some tips.
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Reviewed in the United States on April 25, 2026
★★★★★ 5
Great quality!
Size: 10-11, Color: Jacquard Knit Red/Black
Just the best! Comfy! Warm! Great non-slip bottoms! Husbands second pair and will order again!
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Reviewed in the United States on May 15, 2026