1978 GMC K25 Distributors

Essential 1978 GMC K25 Distributors

Felpro – Distributor Mounting Gasket (Part No.12665)

Distributor Mounting Gasket

from

$1.49
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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Felpro – DISTRIBUTOR MOUNTING GASKET (Part No.70194)

DISTRIBUTOR MOUNTING GASKET

from

$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 – Distributor Rotor (Part No.D448X)

Distributor Rotor

from

$16.49
ACDelco Professional Distributor Rotor 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 rotor 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 – Rotor; GM HEI (Part No.8410)

Rotor; GM HEI

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$13.29
Replacement rotor for Chevrolet HEI style distributors.

Product Features:
  • For HEI distributors
  • Resist carbon tracking
  • Low resistance brass
  • Max voltage transfer
  • Molded from insulated material
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Driveworks – Distributor Rotor (Part No.23045)

Distributor Rotor

from

$11.05
Driveworks offers a line of aftermarket parts and accessories that are commercially acceptable and competitively priced, which provides professional technicians and DIYers with an affordable alternative for repairs.

Product Features:
  • Direct-fit OE replacement ensures ease of installation
  • Designed to meet OE performance
  • As the leader in commercially acceptable parts, we provide professional technicians with the quality parts they need
  • As the leader in commercially acceptable parts, we provide professional technicians with the quality parts they need
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Carquest Premium – Distributor Cap Cover (Part No.CAC1073)

Distributor Cap Cover

from

$17.99
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 Cover (Part No.CAC1105)

Distributor Cap Cover

from

$12.49
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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ACDelco – Ignition Distributor Cover (Part No.1875960X)

Ignition Distributor Cover

from

$19.49
ACDelco Professional Distributor Cap Cover 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 cover 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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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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MSD Ignition – Distributor Gear; MSD Chevy Distributor; .500 ID; Iron (Part No.8531)

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

from

$54.39
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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Carquest Premium – Distributor Cap Carbon Button (Part No.CAA1216)

Distributor Cap Carbon Button

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$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 Premium – Distributor Cap (Part No.CAE1095)

Distributor Cap

from

$15.99
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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ACDelco – Ignition Distributor Cap (Part No.D336X)

Ignition Distributor Cap

from

$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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Carquest – Distributor Cap (Part No.24E1007)

Distributor Cap

from

$15.99
High-quality products that meet OE appearance and performance to provide professional technicians and DIYers with a cost-effective solution.

Product Features:
  • High-quality products that meet OE appearance and performance to
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MSD Ignition – Distributor Cap and Rotor; GM HEI Distributor; Red (Part No.8416)

Distributor Cap and Rotor; GM HEI Distributor; Red

from

$46.09
The cap and rotor of any ignition system must be considered maintenance items. Just as you change the oil and filter of your car, you should always replace the cap and rotor as a set. To make things easy, we now offer these cap and rotor replacement kits.

Product Features:
  • Designed w/Performance In Mind
  • High Quality Material
  • Stainless Terminals
  • Performance replacement part
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Carquest – Distributor Cap (Part No.24E1027)

Distributor Cap

from

$15.99
High-quality products that meet OE appearance and performance to provide professional technicians and DIYers with a cost-effective solution.

Product Features:
  • High-quality products that meet OE appearance and performance to
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Carquest Premium – Distributor T1692: 100% New, With Cap and Rotor (Part No.T1692)

Distributor T1692: 100% New, With Cap and Rotor

from

$127.99
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
  • Precision Engineered ignition modules and plugs ensure proper performance plus precise connection.
  • Precision machined and ground shafts assure high speed accuracy and prevent bearing failures.
  • Original Equipment Equivalent high voltage ignition coils.
  • 100% New Components and fasteners eliminate premature failures.
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Carquest Premium – Distributor T1697: 100% New, With Cap and Rotor (Part No.T1697)

Distributor T1697: 100% New, With Cap and Rotor

from

$169.99
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
  • Precision Engineered ignition modules and plugs ensure proper performance plus precise connection.
  • Precision machined and ground shafts assure high speed accuracy and prevent bearing failures.
  • Original Equipment Equivalent high voltage ignition coils.
  • 100% New Components and fasteners eliminate premature failures.
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E3 – DiamondFIRE HEI Racing Distributor (Part No.E3.1414)

DiamondFIRE HEI Racing Distributor

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$140.99
The E3’s DiamondFIRE Racing HEI Distributor is engineered to withstand the harsh motorsports environment regardless of what you race. The HEI distributor features a CNC machined 6061-T6 aluminum housing that has O-ring grooves, a necessity when using a fully machined race engine block. Other features that separate E3.1414 from the competition include:

Product Features:
  • Special hot forging process – eliminates weak spots and porosity
  • Coil in-cap design
  • High performance 6 Amp dwell limit module
  • GM 4-pin configuration
  • High performance wound coil
  • HEI Coil-in-Cap is available separately
  • Precision stamped & blanked cam plate & weights
  • Proprietary nitrocarburized surface treatment
  • Nylon rub pads
  • Centerless ground shaft rides on an upper sealed roller bearing
  • Fully adjustable mechanical advance
  • TIG welded throughout
  • Hardened iron drive gear
  • Comes complete with: cap, rotor and a wire retainer
  • Crosses to MSD 8362
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Accel – Dist:Chev V8 Hei Vac W/Coil (Part No.59107C)

Dist:Chev V8 Hei Vac W/Coil

from

$210.99
Performance Replacement HEI Distributor, direct plug-in with OE type connectors, GM HEI equipped Cars, Trucks (Pre-Computer). High dielectric strength cap, brass male towers. ACCEL Performance Replacement Distributors are the perfect choice for your daily driver or street machine. Using all new components, these distributors feature High-performance ACCEL Electronics. All new components-housings are either new castings or turned from billet stock, centerless ground shaft with oil lite bushings. High dielectric strength cap, balanced rotor. Male tower distributor cap with brass cap and rotor contacts (Ford and AMC Models feature screw-mounted wire retainer for the ultimate plug wire retention). Iron or steel distributor gear. Direct plug-in replacement with factory-type connectors for plug and play installation.

Product Features:
  • Direct Plug In Factory Replacement Plug And Play
  • CNC Machined 6061 T6 Billet Aluminum Housing
  • High Dielectric Strenght Thermoplastic Cap With Br
  • 4 Topin Module With Dwell Control Triggers At 75 R
  • Easy Access Fully Adjustable Mechanical Advance
  • Adjustable Vacuum Advance
  • Includes Performance Coil
  • Fit non computerized vehicles
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Mallory – Unilite Electronic Ignition Distributor Series 37 (Part No.3748201)

Unilite Electronic Ignition Distributor Series 37

from

$437.99
The industry standard with adjustable mechanical advance curve. Triggered by photo-optic infrared LED system. Improved combustion efficiency and economy, increased spark plug life and cold weather starting, and maintenance free operation.

Product Features:
  • Improved Combustion And Economy
  • Increased Spark Plug Life
  • Improved Cold Weather Starting
  • Maintenance Free Operation
  • Accurate Spark Timing
  • Self-Lubricating Bushings
  • Years Of Trouble-Free Service
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MSD Ignition – Distributor; Chevy In-line 6-cyl.; 250/292 (Part No.8515)

Distributor; Chevy In-line 6-cyl.; 250/292

from

$593.99
Chevy produced a number of inline-6 engines over the years, some dinky powerless wonders and others that can be made to put out some pretty impressive torque and power numbers. For those that dare to be different or want to stick with original power plants, MSD has a distributor for you. While you may not see many 194 Cu. In. engines being built, the 250 and 292 are showing up more and more. This distributor fits them all, including the 230. Like all MSD Pro-Billet distributor, this housing is crafted from billet aluminum and MSD bolts in a non-magnetic pickup to fire the mandatory ignition control. There’s a vacuum advance to assist with economy and the adjustable mechanical advance makes it easy to tune in a specific curve. Pro-Billet inline-6, 194, 230, 250, 292 – PN 8515 note: must be used with an MSD 6, 7 or 8-series ignition.

Product Features:
  • Designed For Street/Performance Use w/Mech or Vacuum Advance
  • Will not fit 235 and 261 engines
  • Must Be Used w/An MSD Ignition Control
  • Supplied w/Socket Style Distributor Cap And Rotor
  • O-ring seals can be installed for oil press. control (Mods only)
  • Special oil tract improves lubrication to the dist./cam gear
  • Nylon pads ensure smooth operation of the advance weights
  • Advance weight pins are staked and tig welded to the plate
  • Mech. advance assem. can be locked out for crank trigger systems
  • Advance plate and weights are fine blanked from chrome moly steel
  • QPQ coated for friction reduction
  • QPQ coated polished steel shaft; guided by sealed ball bearings
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Carquest Premium – Distributor Vacuum Advance (Part No.VBC1101)

Distributor Vacuum Advance

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$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.
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Carquest Premium – Distributor Vacuum Advance (Part No.VBC1069)

Distributor Vacuum Advance

from

$25.49
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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MSD Ignition – Vacuum Advance Lockout; PN 8360; PN 8361; PN 8572 (Part No.8468)

Vacuum Advance Lockout; PN 8360; PN 8361; PN 8572

from

$14.49
This bracket allows you to easily remove the vacuum advance from MSD distributors that are CW rotation (except PN 8365 and PN 8362).

Product Features:
  • Vacuum Advance Lockout
  • Distributor Accessories
  • For Use On PN[8360/8361/8572]
  • Size Can Be Used w/Distributor PN[8360/8361/8572]
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Carquest Premium – Distributor Vacuum Advance (Part No.VBC1098)

Distributor Vacuum Advance

from

$14.79
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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MSD Ignition – Vacuum Advance Mechanism (PN 8460/PN 8461) (Part No.8463)

Vacuum Advance Mechanism (PN 8460/PN 8461)

from

$36.49
This is the replacement canister for MSD distributors equipped with vacuum advance (except the PN 8365 and PN 8362 HEI distributors.)

Product Features:
  • Replacement Canister
  • Vacuum Advance Mechanism
  • For Replacement On PN[8460/8461]
  • Size Replacement Canister For Distributor PN[8360/8361]
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Carquest Premium – Distributor Vacuum Advance (Part No.VBC1036)

Distributor Vacuum Advance

from

$29.99
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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1978 GMC K25 Distributors

Maybe you’re in the middle of a full rebuild of that 1978 GMC K25. Maybe you just need a couple of Distributors. Either way, Advance Auto Parts has 49 different Distributors in our inventory ranging from $1.49 to $469.99. That means you can find the exact parts or products you need to keep that 1978 GMC K25 running smoothly.

Distributors are only as good as their brand. We stock 10 different brands to make sure you have plenty of trusted parts to choose from for your 1978 GMC K25. MSD Ignition, Felpro, and ACDelco are just some of the brands we stock. Search for brands you know or compare prices and reviews to help you decide!

We know you’ll find the perfect Distributors for your 1978 GMC K25, but don’t take our word for it – read our customer ratings and reviews and buy with confidence. Out of the 569 reviews in this category, some of the top rated parts include Dist:Chev V8 Hei Vac W/Coil with 3.8 stars and Ignition Distributor Cap with 4.0 stars.

So if you’re in the market for aftermarket Distributors to keep your 1978 GMC K25 rolling for years to come, look no further. Shop online and have your products shipped direct to your door, or pick up at the nearest Advance Auto Parts location today!

Distributors Brands To Make Your 1978 GMC K25 Last

Simple repair, complete replacement, or a full rebuild. No matter the job, your 1978 GMC K25 demands trusted brand parts and products to keep it running. Many trusted brands of Distributors make up Advance Auto Parts’ inventory, and all are ready to help make your K25 the best it can be. Be sure to browse some of our top Distributors brands and parts.

Popular Carquest Premium Distributors

We carry Carquest Premium parts in our stock across Distributors categories, plus more. For a 1978 GMC K25, our most popular Carquest Premium Distributors include:
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 K25 Distributors

What are the most purchased Distributors for the 1978 GMC K25?

Out of 49 Distributors for the 1978 GMC K25, the most popular in our inventory are:
DISTRIBUTOR MOUNTING GASKET
from $2.29
(5)
DISTRIBUTOR MOUNTING GASKET
Distributor Small Parts
Distributor Rotor
from $16.49
(12)
Distributor Rotor
Distributor Rotor Buttons
HEI Distributor Cap & Rotor Kit with Arc-Thru Protection
from $42.49
(23)
HEI Distributor Cap & Rotor Kit with Arc-Thru Protection
Distributor Cap Kits

What are the top-rated 1978 GMC K25 Distributors?

Top-rated Distributors for your 1978 GMC K25 based on customer reviews/ratings are:
Dist:Chev V8 Hei Vac W/Coil
from $210.99
(19)
Dist:Chev V8 Hei Vac W/Coil
“Incredible product. Installed in a 71 C20 sbc 350. Performance is wonderful. Easy installation. Follow instructions to the letter, you will not be dis”
Ignition Distributor Cap
from $26.49
(11)
Ignition Distributor Cap
“Just keeping “That Great GM Feeling””
Distributor Cap
from $17.05
(3)
Distributor Cap
“Replaced a bad cap on classic I’m working on”