1978 GMC C25 Derale Parts
Choose your Submodel for your 1978 GMC C25
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- 2" Aluminum Belt Fan Spacer
- 2" length with 5/8" female pilot
- 2" Aluminum Belt Fan Spacer
- Derale 2" Fan Spacer Kit
- Product Attributes:
- Male pilot diameter: 5/8
- Female pilot diameter: 5/8
- Length: 2
- Flange bolt spacing: 1-3/4-2-1/4
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Features:
- 2" Aluminum Belt Fan Spacer
- This 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 | High Sierra | 250 |
- 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
- Width: 10-1/8
- Height: 9-1/4
- 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 |
- 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 |
- 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
-
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 |
- 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
- Length: 1
- Flange bolt spacing: 1-3/4-2-1/4
-
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 |
- 19" Heavy Duty Stainless Steel Standard Rotation Flex Fan, Black Hub
- 19" Heavy Duty Stainless Steel Standard Rotation Flex Fan, Black Hub
- 19" Heavy-duty Flex Fan - Standard Rotation
- Product Attributes:
- Rotation: Standard (clockwise)
- Diameter: 19-1/4
- Mounting surface to rear: 2
- Mounting surface to front: 1/2
- Flange bolt spacing: 1-3/4-2-1/4
- Depth: 2-3/8
- Hub material: Powder Coated Black Steel
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Features:
- 19" Heavy Duty Stainless Steel Standard Rotation Flex Fan, Black Hub
- Our 19" heavy duty standard rotation fan features thick black steel hubs and 6 stainless reinforced blades with a large surface area that improve performance and fuel economy and is rated up to 10,000 rpm. The large surface area of the blades pull more air at lower speeds than other flex fans.
Additional Fitment Information:
| Vehicle | Block | CC | Engine | Sub Model | CID |
|---|---|---|---|---|---|
| 1978 - GMC C25 | L | - | 6 Cyl 4.1L | Sierra Grande | 250 |
- 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
- Length: 1/2
- 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 |
- 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
- Width: 15-3/4
- CFM: 650
- Height: 11-1/2
- 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 |
- 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
- Width: 12-3/4
- CFM: 500
- Height: 9-3/8
- Mounting: 11-5/8 X 4
- Depth: 4-5/16
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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 |
- 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 |
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