1976 GMC K25 Spark Plug Boots

Your 1976 GMC K25 might be the best vehicle you’ve ever owned. Or you may just be struggling to keep it highway-approved. No matter the situation, Advance Auto Parts has the Spark Plug Boots you desperately need.

We currently carry 16 Spark Plug Boots to choose from for your 1976 GMC K25, and our inventory prices range from as little as $26.99 up to $193.99.

On top of low prices, Advance Auto Parts offers 4 different trusted brands of Spark Plug Boots for the 1976 GMC K25. We only sell parts from trusted brands like Accel so that you can find quality parts you can count on.

Don’t take our word for it – check out customer ratings and reviews to buy with confidence. We have 128 reviews on our Spark Plug Boots for the 1976 GMC K25 from previous customers.

Have parts delivered straight to your home, or find the nearest Advance Auto Parts store to check out our Spark Plug Boots stock in-person!

Spark Plug Boots for Your 1976 GMC K25

Accel – 8Mm Super Stock Graphite Cust (Part No.4048)

8Mm Super Stock Graphite Cust

from

$58.99
ACCEL’s SuperStock 4000 series spark plug wire sets are designed to upgrade an OE ignition system for high-spark delivery levels for street driven applications. The 450 degree F rated silicone jacket is extruded over a tightly woven, rugged fiberglass braid. The braid is applied over high dielectric strength EPDM (Ethylene Propylene Diene Monomer) inner insulation for ignition wire performance that exceeds SAE specifications.

Product Features:
  • 7mm And 8mm High Gloss Silicone Jacket
  • 450 F Rated Silicone Jacket
  • Stainless Steel Plug Terminals
  • RFI Suppression For Street Driven Applications
  • Custom-fit Universal And Import Coverage
  • High-strength Fiberglass Braid Construction
  • Pre And Post HEI Vehicles
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MSD Ignition – Wire Set; Super Conductor; Small Block Chevy with HEI Cap (Part No.35599)

Wire Set; Super Conductor; Small Block Chevy with HEI Cap

from

$129.99
The MSD 8.5mm super conductor wire is the performance wire. Engineered from the inside out, the 8.5 offers everything you have ever wanted in a wire; incredibly low resistance without electronic interference. In a single 12 inch length of super conductor wire there is only 40 – 50 ohms of resistance. That is the lowest resistance of any helically wound wire. To accomplish this, we use a copper alloy conductor due to it’s great voltage carrying capabilities. The low resistance results in less loss in spark energy so more reaches the spark plug. The conductor is wound extremely tight around a special center core. So tight in fact, that there is over 40 feet of conductor wrapped into a single foot of plug wire. This winding procedure, combined with a ferro-magnetic impregnated center core, produces an extremely effective electro magnetic interference (EMI) or choke. This choke, or suppression capability, keeps the EMI inside the wire where it cannot interfere with other electronics on your vehicle. The outer sleeve that surrounds the conductor assembly is just as impressive. A proprietary blend of silicone and synthetic material produce a sleeve that is highly resistant to high heat as well as abrasion and tears. Available in universal kits and bulk lengths.

Product Features:
  • Less than 50 ohms per foot for superior spark
  • Ferro-magnetic impregnated core creates an effective EMI choke
  • 40 ft. Of Conductor Wound Into A Single Foot Of Wire
  • For high EMI suppression
  • Conductor core features Dupont Kevlar material
  • Proprietary compound sleeves for resistance to high heat/abrasion
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MSD Ignition – Wire Set; Street Fire; 8-cyl.; HEI/90f; Universal (Part No.5552)

Wire Set; Street Fire; 8-cyl.; HEI/90f; Universal

from

$69.99
The street fire spark plug wires feature a low resistance conductor that’s wrapped in a sleek and durable black sleeve. The terminals are covered in black boots that protect the conductor from engine heat to ensure spark delivery.

Product Features:
  • Helically wound conductor suppresses electro and radio noise
  • Kevlar core combination for great strength and durability
  • Heavy Duty Terminals For Secure Connection
  • 8mm silicone and synthetic jacket resists heat and abrasion
  • 500 Ohms/ft. Resistance For Improved Spark Delivery And Power
  • Silicone Boots Protect Against High Exhaust Temps
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MSD Ignition – Wire Set; Black Super Conductor; Universal 8-cyl.; 90f Plug/90f Plug (Part No.31223)

Wire Set; Black Super Conductor; Universal 8-cyl.; 90f Plug/90f Plug

from

$129.99
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.

Product Features:
  • Extra Long 8.5mm Wires So You Can Cut To Your Designed Length
  • Distributor Cap – Boots and Terminals Included
  • Incl. Mini-Stripper-Crimper
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Carquest Premium – Spark Plug Wire Set: 8 Wires, Increased performance, Designed for direct fit (Part No.35-8105)

Spark Plug Wire Set: 8 Wires, Increased performance, Designed for direct fit

from

$39.99
Product Features:
  • SAEJ2031 Class E cable resist heat (428 Deg. F), cold (-104 Deg. F), electrical interference, abrasion and oil.
  • Stainless steel magnetic winding delivers maximum voltage to the spark plug for more powerful, and longer spark resulting in optimum engine performance while reducing the chance for misfire, and eliminating radio static.
  • 100% Pure silicone external insulation resists oil penetration, for lifetime protection against wire set failure.
  • EPDM inner insulation stops power-robbing voltage leaks.
  • With Magnetic-impregnated Kevlar internal conductors – durable and break resistant
  • Engineered to meet OEM tolerances using variable pitch wire winding, creating better resistance to electric magnetic interference (E.M.I resistance).
  • Excellent interference suppression and consistent performance
  • Easy lock terminals for more convenient installation.
  • Thick silicon outer jacket for excellent heat resistance. Insulating EPDM based compound inner jacket helps minimize voltage drop and enhance durability.
  • Broad coverage available for most vehicles on the road today
  • Include grease pack to ensure easy installation and removal
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NGK – NGK Wire Set (Part No.51426)

NGK Wire Set

from

$28.99
NGK ultra-low resistance mag core wire sets provide outstanding performance and durability. High-temp premium silicone outer jacket and inner EPDM/silicone insulation contain high voltage currents for excellent dielectric strength. Stainless steel winding

Product Features:
  • PERFECT FIT FOR YOUR VEHICLE: Built to OEM tolerances with OE quality or better materials
  • BUILT TO LAST: Outer Jacket built to withstand temperatures greater than 250 degrees C, inner insulation EPDM or silicone for best dielectric strength
  • STAINLESS STEEL TERMINALS: Provide the highest possible retention to ensure positive connections through the life of the set
  • CYLINDER LEAD ID: Cylinder lead identification tags where possible make installation easier
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Accel – Universal Fit Spiral 8.8Mm Core Spark Plug Wire Set (Part No.8031)

Universal Fit Spiral 8.8Mm Core Spark Plug Wire Set

from

$158.99
These ACCEL 8.8mm wires feature a carbon/graphite core that virtually eliminate RFI noise while providing maximum conductivity for ultimate performance in any race or street application. Double silicon insulation eliminates leakage and misfire.

Product Features:
  • 500 Ohms Per Foot Of Resistance
  • 550░ F Rated Silicone Jacket
  • 550° F Rated Silicone Jacket
  • Stainless Steel Plug Terminals
  • Custom-fit Universal And Import Coverage
  • Pre And Post HEI Vehicles
  • Silicone Spark Plug Boots
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Accel – Universal Fit 300+ Race Spark Plug Wire Set (Part No.7040)

Universal Fit 300+ Race Spark Plug Wire Set

from

$176.99
The oversized 8.8mm wire features a double silicone construction rated at over 600 F and 60kV. High gloss black silicone wire jacket not only looks great, but resists heat extremes, petrochemicals, ozone and moisture better than so-called blended materials for greater durability and longer life. High-density, high-temperature silicone insulation provides greater dielectric strength and eliminates arcing and the effects of corona better than typical OE style rubber materials. All-Kevlar stranded inner core and fiberglass braiding add greater pull strength and terminal retention. Stainless steel and brass terminals provide unsurpassed electrical conductivity and excellent corrosion resistance compared to terminals made of common or plated metals.

Product Features:
  • 150 Ohms/ft Of Resistance
  • 600 F Rated Silicone Jacket
  • Stainless Steel Plug Terminals
  • Custom-fit Universal And Import Coverage
  • Pre And Post HEI Vehicles
  • Spiral-Wound Copper/Nickel Alloy
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NGK – NGK Wire Set (Part No.51363)

NGK Wire Set

from

$26.99
NGK ultra-low resistance mag core wire sets provide outstanding performance and durability. High-temp premium silicone outer jacket and inner EPDM/silicone insulation contain high voltage currents for excellent dielectric strength. Stainless steel winding

Product Features:
  • PERFECT FIT FOR YOUR VEHICLE: Built to OEM tolerances with OE quality or better materials
  • BUILT TO LAST: Outer Jacket built to withstand temperatures greater than 250 degrees C, inner insulation EPDM or silicone for best dielectric strength
  • STAINLESS STEEL TERMINALS: Provide the highest possible retention to ensure positive connections through the life of the set
  • CYLINDER LEAD ID: Cylinder lead identification tags where possible make installation easier
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Accel – 8Mm Super Stock Spiral Cust Bu (Part No.5048B)

8Mm Super Stock Spiral Cust Bu

from

$91.99
The traditional ACCEL combination of yellow wire and red spark plug boots has been added to these SuperStock Spiral Core 5000 Series wire sets, which feature color-matched wire and spark plug boots in blue, black, and red. With only 500 ohms/ft. of resistance, more ignition energy can reach the spark plug, producing a longer-lasting, hotter spark flame kernel. The results is higher performance through improved efficiency, quicker throttle response, and reduced emissions. This 8mm wire’s double silicone construction is rated to 550 degrees F. The high-gloss wire jacket resists moisture, chemicals, and heat extremes for longer life and great looks. The fiberglass braid adds greater pull strength and terminal retention, while the stainless steel spark plug terminals provide excellent long life, electrical conductivity, and corrosion resistance. Both universal and custom-fit applications are available for early and late model cars and trucks.

Product Features:
  • 500 Ohms/ft Of Resistance
  • 550 F Rated Silicone Jacket
  • Stainless Steel Plug Terminals
  • High RFI Suppression For Street And Strip Use
  • High-strength Fiberglass Braid Construction
  • 8mm High Gloss Silicone Jacket
See More

Carquest Premium – Spark Plug Wire Set: 7 Wires, Increased performance, Designed for direct fit (Part No.35-6142)

Spark Plug Wire Set: 7 Wires, Increased performance, Designed for direct fit

from

$39.99
Product Features:
  • SAEJ2031 Class E cable resist heat (428 Deg. F), cold (-104 Deg. F), electrical interference, abrasion and oil.
  • Stainless steel magnetic winding delivers maximum voltage to the spark plug for more powerful, and longer spark resulting in optimum engine performance while reducing the chance for misfire, and eliminating radio static.
  • 100% Pure silicone external insulation resists oil penetration, for lifetime protection against wire set failure.
  • EPDM inner insulation stops power-robbing voltage leaks.
  • With Magnetic-impregnated Kevlar internal conductors – durable and break resistant
  • Engineered to meet OEM tolerances using variable pitch wire winding, creating better resistance to electric magnetic interference (E.M.I resistance).
  • Excellent interference suppression and consistent performance
  • Easy lock terminals for more convenient installation.
  • Thick silicon outer jacket for excellent heat resistance. Insulating EPDM based compound inner jacket helps minimize voltage drop and enhance durability.
  • Broad coverage available for most vehicles on the road today
  • Include grease pack to ensure easy installation and removal
See More

Accel – GM Sb Hei 86-75 Over Vlv Cvr (Part No.9011CK)

GM Sb Hei 86-75 Over Vlv Cvr

from

$193.99
Do you want to put headers on your vehicle, but are afraid you may cook the spark plug wires? Just looking for a nice upgrade for your stock spark plug wires? If you answered yes to any of these questions, ACCEL has the wire set for you. ACCEL Extreme 9000 Ceramic Boot Wires feature ultra high-temperature, double silicone, 8mm, 500 ohms/ft Ferro-Spiral core wire developed for performance use. The wire is rated at 600 degrees Fahrenheit peak and the black Ceramic boots withstand up to 2,000 degrees. Great for running headers with close tolerances, an engine bay with little room or an application with high under-hood temps. ACCEL Extreme 9000 wires offer excellent energy delivery to the spark plugs through stainless steel spark plug terminals, while providing the highest level of RFI/EMI suppression.

Product Features:
  • Black Ceramic boots withstand up to 2,000░ Fahrenheit
  • Black Ceramic boots withstand up to 2,000° Fahrenheit
  • 8mm double silicone construction black wire rated at 600░ F rated
  • 8mm double silicone construction black wire rated at 600° F rated
  • 500 Ohms/foot ferro sprial core offers the highest level of RFI/EMI suppression
  • Universal and custom fit applications
  • Stainless Steel Plug Terminals
See More

MSD Ignition – Wire Set; Black Super Conductor; Big Block Chevy with HEI Tower Cap (Part No.35603)

Wire Set; Black Super Conductor; Big Block Chevy with HEI Tower Cap

from

$154.99
The MSD 8.5mm super conductor wire is the performance wire. Engineered from the inside out, the 8.5 offers everything you have ever wanted in a wire; incredibly low resistance without electronic interference. In a single 12 inch length of super conductor wire there is only 40 – 50 ohms of resistance. That is the lowest resistance of any helically wound wire. To accomplish this, we use a copper alloy conductor due to it’s great voltage carrying capabilities. The low resistance results in less loss in spark energy so more reaches the spark plug. The conductor is wound extremely tight around a special center core. So tight in fact, that there is over 40 feet of conductor wrapped into a single foot of plug wire. This winding procedure, combined with a ferro-magnetic impregnated center core, produces an extremely effective electro magnetic interference (EMI) or choke. This choke, or suppression capability, keeps the EMI inside the wire where it cannot interfere with other electronics on your vehicle. The outer sleeve that surrounds the conductor assembly is just as impressive. A proprietary blend of silicone and synthetic material produce a sleeve that is highly resistant to high heat as well as abrasion and tears. Available in universal kits and bulk lengths.

Product Features:
  • Less than 50 ohms per foot for superior spark
  • Ferro-magnetic impregnated core creates an effective EMI choke
  • 40 ft. Of Conductor Wound Into A Single Foot Of Wire
  • For high EMI suppression
  • Conductor core features Dupont Kevlar material
  • Proprietary compound sleeves for resistance to high heat/abrasion
See More

MSD Ignition – Wire Set; Black Super Conductor; 8-cyl. Multi-Angle/HEI; Universal (Part No.31183)

Wire Set; Black Super Conductor; 8-cyl. Multi-Angle/HEI; Universal

from

$143.99
For engines with late-model type (HEI spark plug top) distributor caps. Multi-angle boots and terminals installed on one end. 90 degree distributor boots and terminals included.

Product Features:
  • Extra Long 8.5mm Wires So You Can Cut To Your Designed Length
  • Distributor Cap – Boots and Terminals Included
  • Includes Mini-Stripper-Crimper For Factory Style Crimps
  • Size Includes [8] 90 Degree Boots/Terminal Ends
  • Durable outer sleeve is a proprietary compound for resistance to high heat or abrasion
  • Stainless steel terminals feature dual crimp tabs to grip wire conductor and outer jacket separately
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NGK – Spark Plug Wire Set: Ultra-low Resistance Magnetic Core, Lifetime Warranty (Part No.51373)

Spark Plug Wire Set: Ultra-low Resistance Magnetic Core, Lifetime Warranty

from

$44.49
NGK ultra-low resistance mag core wire sets provide outstanding performance and durability. High-temp premium silicone outer jacket and inner EPDM/silicone insulation contain high voltage currents for excellent dielectric strength. Stainless steel winding over premium ferrite magnetic core delivers ultra-low resistance, a more powerful spark and excellent EMI/RFI noise suppression. OE or better specified spark plug and distributor boots ensure the highest quality fit, performance and durability in every application. Spark plug boots are glued to NGK cable with a silicone sealer for a watertight seal. Stainless steel terminals utilizing up to 3 serrated crimps bite into cable jacket and inner insulation for the highest terminal retention strength (wherever possible). Locking C-shaped spring clip with corrosion-resistant plating ensures a secure and positive spark plug terminal connection.

Product Features:
  • PERFECT FIT FOR YOUR VEHICLE: Built to OEM tolerances with OE quality or better materials
  • BUILT TO LAST: Outer Jacket built to withstand temperatures greater than 250 degrees C, inner insulation EPDM or silicone for best dielectric strength
  • STAINLESS STEEL TERMINALS: Provide the highest possible retention to ensure positive connections through the life of the set
  • CYLINDER LEAD ID: Cylinder lead identification tags where possible make installation easier
See More

NGK – NGK Wire Set (Part No.51374)

NGK Wire Set

from

$41.49
NGK ultra-low resistance mag core wire sets provide outstanding performance and durability. High-temp premium silicone outer jacket and inner EPDM/silicone insulation contain high voltage currents for excellent dielectric strength. Stainless steel winding

Product Features:
  • PERFECT FIT FOR YOUR VEHICLE: Built to OEM tolerances with OE quality or better materials
  • BUILT TO LAST: Outer Jacket built to withstand temperatures greater than 250 degrees C, inner insulation EPDM or silicone for best dielectric strength
  • STAINLESS STEEL TERMINALS: Provide the highest possible retention to ensure positive connections through the life of the set
  • CYLINDER LEAD ID: Cylinder lead identification tags where possible make installation easier
See More

FAQs for 1976 GMC K25 Spark Plug Boots

What are the most popular Spark Plug Boots for the 1976 GMC K25?

With 4 brands you can trust, our most popular Spark Plug Boots for the 1976 GMC K25 parts are:
8Mm Super Stock Graphite Cust
from $58.99
(31)
8Mm Super Stock Graphite Cust
Spark Plug Boots
Spark Plug Wire Set: 8 Wires, Increased performance, Designed for direct fit
from $39.99
This product is not rated
Spark Plug Wire Set: 8 Wires, Increased performance, Designed for direct fit
Spark Plug Boots

What are the best aftermarket Spark Plug Boots for the 1976 GMC K25?

See what past customers had to say about our highest-rated Spark Plug Boots for the 1976 GMC K25:
Wire Set; Street Fire; 8-cyl.; HEI/90f; Universal
from $69.99
(4)
Wire Set; Street Fire; 8-cyl.; HEI/90f; Universal
“High quality product. Even comes with a crimping tool. Plenty of length for custom routing.”
Wire Set; Black Super Conductor; Universal 8-cyl.; 90f Plug/90f Plug
from $129.99
(1)
Wire Set; Black Super Conductor; Universal 8-cyl.; 90f Plug/90f Plug
“You buy an item that says direct fit. You spend a hundred dollars for it. You expect it to be an assembled product at the right lengths with the right”