1978 GMC G25 Ignition and Tune-Up Products

Essential 1978 GMC G25 Ignition and Tune-Up Products

Carquest – Distributor Ignition Pickup (Part No.ME11)

Distributor Ignition Pickup

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$40.99
High-quality products that meet OE appearance and performance to provide professional technicians and DIYers with a cost-effective solution.

Product Features:
  • Designed to OE standards for ease of installation
  • High temperature enameled wires were specified for better insulation and performance
  • With industry leading expertise in electronic ignition, when original equipment fails our products are designed to fix the inherent failure issues
  • BWD is a global manufacturer of original equipment ignition products, complete quality control is maintained through the manufacturing process from componentry to finished product
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Carquest – Radio Capacitor (Part No.G84)

Radio Capacitor

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$12.99
High-quality products that meet OE appearance and performance to provide professional technicians and DIYers with a cost-effective solution.

Product Features:
  • Designed to OE standards for ease of installation
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Carquest Premium – Distributor T1612: 100% New, With Cap and Rotor (Part No.T1612)

Distributor T1612: 100% New, With Cap and Rotor

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$73.99
Carquest Premium distributors are built to meet or exceed the original equipment (OE) specifications for each application. Our distributors are built by a manufacturer that meets IATF 16949 certified framework, an internationally recognized proof of quality in the automotive industry. Each distributor is supplied with the cap, rotor and any seals needed for installation. Carquest Premium distributors are 100% new and undergo extensive validation testing to ensure long-lasting ignition performance and reliability.

Product Features:
  • Designed to meet or exceed OE specifications for fit, form and function
  • 100% new unit with no core charges
  • Precision machined shafts result in high speed accuracy and help prevent bearing failures
  • Every distributor is tested to ensure reliable and long-lasting performance
  • O-rings or gaskets included where applicable
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Carquest Premium – Distributor Vacuum Advance (Part No.VBC1016)

Distributor Vacuum Advance

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$32.49
The distributor is just one piece of this type of ignition system which is typically driven by the engine’s camshaft. The distributor is the device that delivers the ignition spark to the spark plugs at a precise time, and spark timing is critical. Any wear or component out of place in this type of system will result in failure. Within the distributor and mounted to it are many individual pieces which allow the distributor and system to be maintained and repaired to keep it in top working order.

Product Features:
  • All products are constructed to meet all design and operating characteristics as intended by the vehicle manufacturer.
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MSD Ignition – Wire Set; Super Conductor; Small Block Chevy; Socket Distributor Cap (Part No.31599)

Wire Set; Super Conductor; Small Block Chevy; Socket Distributor Cap

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$153.99
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 – Distributor Gear; MSD Chevy Distributor; .500 ID; Iron (Part No.8531)

Distributor Gear; MSD Chevy Distributor; .500 ID; Iron

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$46.99
This gear test fixture features variable rpm and oil pressure control allowing MSD engineers the ability to maintain the exact conditions that they want for gear tests. Severe loads can be placed on the gear and the fixture can spin up to 10,000 rpm. Features increased outer hardened layer thickness (RC 55-60). Micro polished surface for smooth contact. Proprietary formulated ductile iron. Melonite QPQ coated reduces friction and initial wear. Interstitial carbide concentration improves wear resistance and running properties.

Product Features:
  • Increased outer hardened layer thickness (RC 55-60)
  • Micro Polished Surface For Smooth Contact
  • Proprietary formulated ductile iron.
  • Melonite QPQ coated reduces friction and initial wear
  • Interstitial carbide improves wear resistance/running properties
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MSD Ignition – Wire Set; Black Super Conductor; Small Block Chevy; Socket Cap (Part No.31653)

Wire Set; Black Super Conductor; Small Block Chevy; Socket Cap

from

$153.99
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:
  • Custom Fit For Make And Model Listed
  • Wires Are Pre-Cut To Exact Specifications
  • Bolt-on Performance
  • Conductor core features DuPont Kevlar material for increased tensile strength
  • 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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Carquest Premium – Distributor Connector (Part No.FAA1133)

Distributor Connector

from

$54.99
CARQUEST premium engine management products provide the right products for a wide range of domestic and import applications. Delivering the highest performance and durability under demanding conditions.

Product Features:
  • Premium quality materials for longer service life
  • Sealed connections (where applicable) to prevent environmental corrosion and performance issues
  • Global coverage for import and/or domestic applications
  • OE specified wire gauge to ensure a reliable electrical connection
  • Designed to meet or exceed OE specifications in form, fit and function
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Carquest Premium – Distributor Drive Gear (Part No.DGA1005)

Distributor Drive Gear

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$48.99
CARQUEST premium engine management products provide the right products for a wide range of domestic and import applications. Delivering the highest performance and durability under demanding conditions.
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Carquest Premium – Distributor Rotor (Part No.DAA1004)

Distributor Rotor

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$6.99
Carquest premium engine management products provide the right products for a wide range of domestic and import applications. Delivering the highest performance and durability under demanding conditions.
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Carquest – Ignition Coil Ground Strap (Part No.DL66)

Ignition Coil Ground Strap

from

$5.05
Product Features:
  • Integrated A/D converter and digital signal processing with a dynamically adaptive switch point improves accuracy and operation
  • Advanced circuitry protects the system from stray electro-magnetic fields and power spikes
  • Custom magnetic circuit programming calibrates the sensor while performance testing for improved timing accuracy between the target wheel and sensor output
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MSD Ignition – Crank Trigger Kit; Flying Magnet; Big Block Chevy (Part No.8620)

Crank Trigger Kit; Flying Magnet; Big Block Chevy

from

$481.99
For a long time, racers have known that one of the best things to do to an engine to improve its performance is to stabilize the ignition timing. The MSD flying magnet crank trigger system does exactly that by using magnets embedded in an aluminum wheel. The MSD flying magnet crank trigger uses four magnets secured in the aluminum trigger wheel that pass by a stationary non-magnetic pick-up to trigger the ignition. This flying magnet design produces accurate trigger signals and the non-magnetic pick-up cannot be false triggered. Each flying magnet crank trigger includes a two-piece mounting bracket for the non-magnetic pick-up that in most cases will work on either the passenger side or driver’s side of the engine (the SB Chrysler and SB Ford brackets mount on only one side). The adjustable bracket provides a wide range of timing adjustment and spacers are included. These systems will trigger MSD 6, 7, 8 and 10 series ignitions and all MSD timing accessories.

Product Features:
  • Absolutely The Most Accurate Way To Trigger The Ignition
  • The non-magnetic pickup cannot be false triggered.
  • Powerful magnets are embedded in a billet aluminum trigger wheel.
  • Incl. brackets/mounting hardware to fit a variety of engines
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Carquest Premium – Ignition Switch (Part No.CSA1092)

Ignition Switch

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$23.99
CARQUEST premium engine management products provide the right products for a wide range of domestic and import applications. Delivering the highest performance and durability under demanding conditions.
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Carquest Premium – Distributor Cap Carbon Button (Part No.CAA1216)

Distributor Cap Carbon Button

from

$9.49
CARQUEST premium engine management products provide the right products for a wide range of domestic and import applications. Delivering the highest performance and durability under demanding conditions.
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Carquest – Ignition Coil: Meets OE Specifications, 1 Count (Part No.26C1065)

Ignition Coil: Meets OE Specifications, 1 Count

from

$29.99
Carquest ignition coils meet original equipment (OE) fit, form and function and are built to ensure reliable starting and performance. Carquest ignition coils are tested to ensure proper spark and perfect fit for each application. These ignition coils are an affordable repair choice to restore the vehicle¿s ignition system performance. Carquest ignition coils are part of our Carquest Vehicle Solutions, which is a full line of engine management and electronics products that help control ignition, fuel delivery and emission systems. Carquest Vehicle Solutions are OE-quality parts designed, engineered and tested by world-class manufacturers to ensure a reliable and long-lasting repair.

Product Features:
  • Long service life and durable performance
  • High dielectric strength for reliability
  • Corrosion-resistant connections
  • Carquest Vehicle Solutions Technical Support available from ASE certified technicians: 1-866-687-5413
  • High reliability
  • Long service life
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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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Carquest – Distributor Cap Cover (Part No.C198A)

Distributor Cap Cover

from

$14.99
High-quality products that meet OE appearance and performance to provide professional technicians and DIYers with a cost-effective solution.

Product Features:
  • Designed to OE standards for ease of installation
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ACDelco – Copper Core Spark Plug (Part No.R43S)

Copper Core Spark Plug

from

$4.99
ACDelco Professional Conventional Spark Plugs are designed for reliability and efficient performance, and are a high quality replacement for many vehicles on the road today. Their high-quality copper cores and outstanding suppression characteristics deliver reliable performance. They are also available for Marine applications. These premium aftermarket replacement spark plugs are manufactured to meet your expectations for fit, form, and function.

Product Features:
  • Black Onyx coating helps reduce corrosion
  • Copper core provides great heat transfer and helps maximize plug durability
  • Ribbed suppressor seal extends resistance and helps prevent spark ‘flash over’ and misfires
  • Nickel-chrome alloy sheathing helps prevent corrosion on center electrode
  • Available for use in Marine applications
  • Some ACDelco Gold parts may have formerly appeared as ACDelco Professional
  • Premium aftermarket replacement part
  • Manufactured to meet specifications for fit, form, and function for General Motors vehicles as well as most makes and models
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Felpro – DISTRIBUTOR MOUNTING GASKET (Part No.70194)

DISTRIBUTOR MOUNTING GASKET

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$2.29
Fel-Pro gaskets offer 100% vehicle sealing with application-specific materials to give you sealing solutions with the performance and durability professionals trust

Product Features:
  • Meets or exceeds all original equipment specifications
  • Application specific design to ensure a perfect fit
  • Engineered for the sealing repair environment
  • Validated for fit, form and function
  • Unsurpassed quality you can trust
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ACDelco – Ignition Distributor Cap (Part No.D336X)

Ignition Distributor Cap

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$26.49
ACDelco Professional Distributor Cap is a high quality aftermarket replacement component for one or more of the following vehicle systems: cooling, hvac, ignition, starting and charging, body-electrical and lighting, wiper and washer, and/or engine fuel management. This premium aftermarket cap is manufactured to meet or exceed your expectations for fit, form, and function.

Product Features:
  • Professional, premium aftermarket replacement
  • Provides the performance and dependability you expect from ACDelco
  • Manufactured to meet expectations for fit, form, and function
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MSD Ignition – Coil Cover; HEI Distributors (Part No.8402)

Coil Cover; HEI Distributors

from

$30.99
With the introduction of our 20 amp extreme HEI module, we needed an HEI cap and rotor that could withstand the high output. The answer was to mold our own HEI cap, rotor and coil cover. The cap and rotor will fit our HEI pro-billet distributor, PN 8365.

Product Features:
  • Fits stock GM HEI
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Carquest Premium – Ignition Switch Connector (Part No.PTC1261)

Ignition Switch Connector

from

$11.49
CARQUEST premium engine management products provide the right products for a wide range of domestic and import applications. Delivering the highest performance and durability under demanding conditions.

Product Features:
  • Premium quality materials for longer service life
  • Sealed connections (where applicable) to prevent environmental corrosion and performance issues
  • Global coverage for import and/or domestic applications
  • OE specified wire gauge to ensure a reliable electrical connection
  • Designed to meet or exceed OE specifications in form, fit and function
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Carquest Premium – Ignition Switch Connector (Part No.PTA1273)

Ignition Switch Connector

from

$21.99
CARQUEST premium engine management products provide the right products for a wide range of domestic and import applications. Delivering the highest performance and durability under demanding conditions.

Product Features:
  • Premium quality materials for longer service life
  • Sealed connections (where applicable) to prevent environmental corrosion and performance issues
  • Global coverage for import and/or domestic applications
  • OE specified wire gauge to ensure a reliable electrical connection
  • Designed to meet or exceed OE specifications in form, fit and function
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Carquest Premium – Ignition Module (Part No.CBE1004)

Ignition Module

from

$44.49
CARQUEST Ignition Modules are built by an ignition systems manufacturer with expertise in the entire vehicle spark system.

Product Features:
  • CARQUEST Ignition Modules creates and refines the timing of the engine using various sensors and readings throughout the spark system in order to create an efficiently running engine.
  • CARQUEST Ignition Modules use current and voltage limiting circuitry in order to prevent the ignition coil from over voltage/current. Over voltages can allow for coils to create excessive heat which can damage to the ignition module resulting in check eng
  • CARQUEST Ignition Modules are 100% individually tested for all product functionalities including over voltage, timing and dwell.
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Accel – Distributor Control Module (Part No.35361)

Distributor Control Module

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$67.99
ACCEL control modules provide high coil output and superior reliability. Dwell circuit ensures long coil charging. Current circuit protects from overheating. Resists false triggering from RFI sources. Distributor and remote mounts available.

Product Features:
  • Fits Most Stock And Modified Distributors
  • Solid State Electronics
  • Dwell Control Circuit
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PerTronix – 808412 Flame-Thrower Spark Plug Wires 8 cyl 8mm GM HEI Custom Fit Red (Part No.808412)

808412 Flame-Thrower Spark Plug Wires 8 cyl 8mm GM HEI Custom Fit Red

from

$72.99
8mm Custom fit MAGx2 wires are available for many popular applications equipped with Flame-Thrower or original GM HEI distributors. Our custom wire sets have factory terminated ends for a superior connection and perfect fit, without cuttting, crimping and

Product Features:
  • PerTronix 808412 Flame-Thrower Spark Plug Wires 8 cyl 8mm GM HEI Custom Fit Red
  • Two current paths for reliability and redundancy. -Primary path: Spiral wound stainless steel alloy.-Secondary path: Carbon impregnated fiberglass center core.
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Accel – Universal Fit Super Stock 8mm Spiral; Spark Plug Wire Set (Part No.5041B)

Universal Fit Super Stock 8mm Spiral; Spark Plug Wire Set

from

$84.99
The traditional ACCEL combination of yellow wire and red spark plug boots has been added to these Super Stock 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:
  • Silicone Spark Plug Boots
  • 90 Degree Spark Plug Boot Angle
  • 450 Degree Wire Temperature Rating
  • Meets Or Exceeds OE Boot Temperature Rating
  • Meets or Exceeds OE Resistance
  • Cooper Core
  • 500 Ohms Resistance
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Accel – Universal Fit Super Stock 8mm Spiral; Spark Plug Wire Set (Part No.5041R)

Universal Fit Super Stock 8mm Spiral; Spark Plug Wire Set

from

$116.99
The traditional ACCEL combination of yellow wire and red spark plug boots has been added to these Super Stock 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 Per Foot Of Resistance
  • 550 Degree F Rated Silicone Jacket
  • Stainless Steel Plug Terminals
  • High RFI Suppression For Street/Strip Use
  • Custom-fit Universal And Import Coverage
  • High-strength Fiberglass Braid Construction
  • Pre And Post HEI Vehicles
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1978 GMC G25 Ignition and Tune-Up Products

You count on your 1978 GMC G25 to run right. That means taking care of it with regular maintenance, necessary repairs, and the right parts. Advance Auto Parts can help with all of that thanks to our extensive inventory of trusted Ignition and Tune-Up Products. With 138 Ignition and Tune-Up Products ranging in price from $1.49 to $481.99, you’re sure to find everything you need for your 1978 GMC G25.

Brands matter. If you want to shop a specific Ignition and Tune-Up Products brand, we stock 19 different brands like AC Delco, NGK, and E3. 1978 GMC G25 Ignition and Tune-Up Products start as low as $1.49!

One of the best ways to find top quality OEM or aftermarket Ignition and Tune-Up Products is by asking professionals. Short of that, you can shop with confidence thanks to our 2,840 extensive product reviews on 1978 GMC G25 Ignition and Tune-Up Products. Some of the top-rated Ignition and Tune-Up Products products we carry are Distributor Cap and Rotor; GM HEI Distributor; Red with 4.4 stars and U-Groove Spark Plug, Header Plug, Pack of 8 with 4.9 stars.

Did we mention you can order your Ignition and Tune-Up Products from our online catalog and have them shipped right to your garage? Or, if you feel like seeing the parts first-hand, search for your nearest Advance Auto Parts location above and pick up in-store when you’re ready. Browse our full Ignition and Tune-Up Products inventory for your 1978 GMC G25 below to get started!

Top-Rated Ignition and Tune-Up Products Brands For Your 1978 GMC G25

Trusted Ignition and Tune-Up Products OEM and aftermarket product brands are what Advance Auto Parts specializes in. The brands we work with are sure to keep that 1978 GMC G25 running right for years to come. In our inventory you’ll find brands like AC Delco, NGK, E3, and even more.

Popular Carquest Premium Ignition and Tune-Up Products

You’ll find popular Carquest Premium brand products across Ignition Boots and Distributors. All are waiting to get your 1978 GMC G25 back on the road. Some of the top-rated Carquest Premium products in these categories are:
Spark Plug Wire Set
from $36.99
(4)
Spark Plug Wire Set
Spark Plug Boots
Distributor T1845: 100% New, With Cap and Rotor
from $169.99
(4)
Distributor T1845: 100% New, With Cap and Rotor
Distributors

FAQs for 1978 GMC G25 Ignition and Tune-Up Products

What are the most purchased Ignition and Tune-Up Products for the 1978 GMC G25?

Out of 138 Ignition and Tune-Up Products for the 1978 GMC G25, the most popular in our inventory are:
Copper Core Spark Plug
from $4.99
(32)
Copper Core Spark Plug
Spark Plugs

What are the top-rated 1978 GMC G25 Ignition and Tune-Up Products?

Top-rated Ignition and Tune-Up Products for your 1978 GMC G25 based on customer reviews/ratings are:
U-Groove Spark Plug, Header Plug, Pack of 8
from $51.99
(36)
U-Groove Spark Plug, Header Plug, Pack of 8
“Perfect great plugs for my Build. Great service to THANK YOU!”
Ignition Switch
from $32.49
(25)
Ignition Switch
“Very good”