Shop By Product Matching "Derale"
Choose your Submodel for your 1978 GMC C25
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- 1" Aluminum Belt Fan Spacer
- 1" length with 5/8" or 3/4" female pilot
- 1" Aluminum Belt Fan Spacer
- Derale 1" Fan Spacer Kit
- Product Attributes:
- Male pilot diameter: 5/8
- Female pilot diameter: 5/8, 3/4
- Flange bolt spacing: 1-3/4-2-1/4
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Features:
- 1" Aluminum Belt Fan Spacer
- This 1" belt driven fan spacer comes with a clear anodized finish and is designed to fit most domestic 5/8" or 3/4" pilot water pumps.
Additional Fitment Information:
| Vehicle | Block | CC | Engine | Sub Model | CID |
|---|---|---|---|---|---|
| 1978 - GMC C25 | L | - | 6 Cyl 4.1L | Base | 250 |
- Transmission Cooling Pan, Reduces Fluid Temps up to 50°F, Increase Capacity
- Transmission Cooling Pan, Reduces Fluid Temps up to 50°F, Increase Capacity
- Vehicles with Turbo 400 transmissions
- Product Attributes:
- Tube depth: 2
- Temp bung size: 1/8 Npt
- Pan depth: 2-7/8
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Features:
- Transmission Cooling Pan, Reduces Fluid Temps up to 50°F, Increase Capacity
- Derale's TH400 Transmission Cooling Pan #14201 uses air passing beneath the vehicle and redirects it to help lower transmission oil temperatures. With brazed, turbulator-equipped airway tubes passing through the lower section of the transmission pan for more efficient cooling, each is individually pressure tested to ensure a leak-free pan. We've included a much stronger magnetic drain plug and rubber/steel reusable washer, in addition to a 1/8" NPT temperature sender bung located in the side of the pan. Finished with a durable black two-stage coating, each pan also includes neoprene gasket and 1/8" NPT temperature sender plug.
Additional Fitment Information:
| Vehicle | Transmission |
|---|---|
| 1978 - GMC C25 | Automatic |
- Transmission Cooling Pan, Reduces Fluid Temps up to 50°F, Increase Capacity
- Transmission Cooling Pan, Reduces Fluid Temps up to 50°F, Increase Capacity
- Vehicles using Turbo 350 transmission
- Product Attributes:
- Tube depth: 2-3/8
- Temp bung size: 1/8 Npt
- Pan depth: 3-1/4
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Features:
- Transmission Cooling Pan, Reduces Fluid Temps up to 50°F, Increase Capacity
- Derale's TH350 Transmission Cooling Pan #14200 uses air passing beneath the vehicle and redirects it to help lower transmission oil temperatures. With brazed, turbulator-equipped airway tubes passing through the lower section of the transmission pan for more efficient cooling, each is individually pressure tested to ensure a leak-free pan. We've included a much stronger magnetic drain plug and rubber/steel reusable washer, in addition to a 1/8" NPT temperature sender bung located in the side of the pan. Finished with a durable black two-stage coating, each pan also includes neoprene gasket and 1/8" NPT temperature sender plug.
Additional Fitment Information:
| Vehicle | Transmission |
|---|---|
| 1978 - GMC C25 | Automatic |
- Universal Engine Oil Filter Relocation Kit with 1/2" NPT Ports
- 13/16-16"
- Universal Engine Oil Filter Relocation Kit with 1/2" NPT Ports
- Spin-On Adapter Ports Up Filter Mount Kit
- Product Attributes:
- Adapter thread size: 3/4"-16, 13/16"-16, 18x1.5mm, 20x1.5mm, 22x1.5mm
- Remote filter thread size: 3/4-16
- Adapter inlet size: 1/2 Npt
- Remote filter inlet size: 1/2 Npt
- Remote filter landing: 2-1/2, 2-3/4, 3-1/2
- Adapter thickness: 1-3/4, 2
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Features:
- Universal Engine Oil Filter Relocation Kit with 1/2" NPT Ports
- This Universal single filter kit allows oil filter to be relocated to a convenient, easy-access location. Includes a high quality, die cast aluminum 1/2" NPT ports up filter mount and a 1/2" NPT ports spin-on adapter with most everything you need for an easy installation. Filter mount uses Fram PH8A Oil Filter or equivalent. Designed to fit most passenger vehicles on the road today with 2 1/2" to 3 1/2" oil filter landings. Spin-on adapters provide external oil lines to allow the addition of an engine oil cooler and/or remote filter mount, installing at the stock engine oil filter location. This all-new version has a billet style look and has an ultra-bright, polished appearance.
Additional Fitment Information:
| Vehicle | Block | CC | Engine | CID |
|---|---|---|---|---|
| 1978 - GMC C25 | V | - | 8 Cyl 7.4L | 454 |
- 16 Pass Electra-Cool Remote Fluid Cooler, -6AN
- For use with vehicle that require 3/8" ID hose or smaller
- 16 Pass Electra-Cool Remote Fluid Cooler, -6AN
- Remote Automatic Transmission Oil Cooler Kit
- Product Attributes:
- Airflow: Puller (reversible)
- Inlet dim: 8-3/4
- CFM: 650
- Mounting: 14-3/4 X 5-1/4
- Depth: 5
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Features:
- 16 Pass Electra-Cool Remote Fluid Cooler, -6AN
- With its own air supply available when needed, the Electra-Cool is one of our most popular remote coolers and can literally be mounted anywhere space permits, making it a popular addition for performance compacts, hot rods, muscle cars and trucks. An efficient 16-pass tube and fin cooler coupled with a powerful 10" diameter Tornado fan and aluminum brackets, and featuring -6AN male fittings, each unit also includes 2 each -6AN x 3/8" barb fittings. Designed for transmission, power steering and fuel cooling.
Additional Fitment Information:
| Vehicle | Block | CC | Transmission | Engine | CID |
|---|---|---|---|---|---|
| 1978 - GMC C25 | V | - | Automatic | 8 Cyl 7.4L | 454 |
- 1/2" Aluminum Belt Fan Spacer
- 1/2" length with 5/8" female pilot
- 1/2" Aluminum Belt Fan Spacer
- Derale 1/2" Fan Spacer Kit
- Product Attributes:
- Male pilot diameter: 5/8
- Female pilot diameter: 5/8
- Flange bolt spacing: 1-3/4-2-1/4
-
Features:
- 1/2" Aluminum Belt Fan Spacer
- This 1/2" belt driven fan spacer comes with a clear anodized finish and is designed to fit most domestic 5/8" pilot water pumps.
Additional Fitment Information:
| Vehicle | Block | CC | Engine | Sub Model | CID |
|---|---|---|---|---|---|
| 1978 - GMC C25 | L | - | 6 Cyl 4.1L | Sierra Classic | 250 |
- 25 Row Hyper-Cool Remote Transmission Cooler Kit, -6AN
- 25 Row Hyper-Cool Remote Transmission Cooler Kit, -6AN
- Remote Automatic Transmission Oil Cooler Kit
- Product Attributes:
- BTU's Per Hour: 46000
- CFM: 500
- Mounting: 7-1/2 X 9
- Depth: 5-5/8
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Features:
- 25 Row Hyper-Cool Remote Transmission Cooler Kit, -6AN
- Equipped with our top of the line 25 row stacked plate cooler, this new remote cooler can literally be mounted almost anywhere. Making it a popular addition for performance cars, hot rods, muscle cars and trucks. Our Stacked Plate cooler coupled with a Tornado fan and aluminum shroud, this kit comes with a complete installation kit to install easily on all vehicles with 5/16" or 3/8" transmission cooler lines. Also included is an 180°F in-line thermostat for activating the electric fan. The Hyper-Cool is perfect for extreme duty towing and hauling and can add years to the life of your transmission.
Additional Fitment Information:
| Vehicle | Block | CC | Transmission | Engine | CID |
|---|---|---|---|---|---|
| 1978 - GMC C25 | V | - | Automatic | 8 Cyl 7.4L | 454 |
- 19 Row Series 8000 Plate & Fin Transmission Cooler Kit, 11/32
- 18 Row Cooler
- 19 Row Series 8000 Plate & Fin Transmission Cooler Kit, 11/32
- 8000 Series Plate and Fin Transmission Cooler Kit
- Product Attributes:
- Inlet dim: 10-1/4
- GVW: 20500
- Mounting: 6-3/4 X 8
- Depth: 7/8
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Features:
- 19 Row Series 8000 Plate & Fin Transmission Cooler Kit, 11/32
- A step up from Tube & Fin type coolers, this Plate and Fin cooler features strong furnace-brazed construction, 7/8" wide plates, 3/4" embossed turbulators which maximize heat transfer while also minimizing pressure drop. This unit is perfect for medium to full-size cars and intermediate SUVs that see light to medium duty use and some towing. It greatly extends transmission life by preventing heat-related transmission failures, and improve shifting performance. This kit comes with a complete transmission cooler hardware kit to easily install onto vehicles with 5/16" transmission cooler lines.
Additional Fitment Information:
| Vehicle | Block | CC | Transmission | Region | Engine | CID |
|---|---|---|---|---|---|---|
| 1978 - GMC C25 | V | - | Automatic | United States | 8 Cyl 7.4L | 454 |
- 15 Row Atomic Cool Plate & Fin Remote Transmission Cooler Kit, -6AN
- 15 Row Atomic Cool Plate & Fin Remote Transmission Cooler Kit, -6AN
- Remote Automatic Transmission Oil Cooler Kit
- Product Attributes:
- Inlet dim: 8-9/16
- CFM: 500
- Mounting: 11-5/8 X 4
- Depth: 4-5/16
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Features:
- 15 Row Atomic Cool Plate & Fin Remote Transmission Cooler Kit, -6AN
- A step up from Tube & Fin type coolers, the Atomic-Cool Remote Transcooler can literally be mounted almost anywhere, making it a popular addition for performance cars, hot rods, muscle cars and trucks. A heavy duty plate and fin cooler coupled with a Tornado fan and aluminum brackets, this kit comes with a complete installation kit to install easily on all vehicles with 5/16" or 3/8" transmission cooler lines. Also included is an 180°F in-line thermostat for activating the electric fan. The Atomic-Cool is designed for heavy duty towing and hauling, and can add years to the life of your transmission.
Additional Fitment Information:
| Vehicle | Block | CC | Transmission | Engine | CID |
|---|---|---|---|---|---|
| 1978 - GMC C25 | V | - | Automatic | 8 Cyl 7.4L | 454 |
- 15 Row Atomic Cool Plate & Fin Remote Fluid Cooler, -6AN
- Cooler Assembly
- 15 Row Atomic Cool Plate & Fin Remote Fluid Cooler, -6AN
- Remote Automatic Transmission Oil Cooler Kit
- Product Attributes:
- Inlet dim: 8-9/16
- CFM: 500
- Mounting: 11-5/8 X 4
- Depth: 4-5/16
-
Features:
- 15 Row Atomic Cool Plate & Fin Remote Fluid Cooler, -6AN
- A step up from our Electra-Cool and Econo-Cool Tube & Fin type coolers, the popular Atomic-Cool remote cooler can literally be mounted anywhere available space permits, making it a popular addition for performance cars, hot rods, muscle cars and trucks. Featuring a heavy duty yet compact plate and fin cooler coupled with an 8"Tornado fan and aluminum brackets, each includes 2 each -6AN male fittings and -6AN x 3/8" barb adapters. The Atomic-Cool is perfect for heavy duty towing and hauling to provide a durable, trouble-free way to add years to the life of your transmission. Also recommended for power steering and fuel cooling.
Additional Fitment Information:
| Vehicle | Block | CC | Transmission | Engine | CID |
|---|---|---|---|---|---|
| 1978 - GMC C25 | V | - | Automatic | 8 Cyl 7.4L | 454 |
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