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Choose your Engine for your 1981 GMC K2500

6 Cyl 4.8L 8 Cyl 5.7L

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1981 GMC K2500 Transmission Oil Pan Derale

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
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
1981 - GMC K2500	Automatic

1981 GMC K2500 Transmission Oil Pan Derale

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
1981 - GMC K2500	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
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
1981 - GMC K2500	V	-	8 Cyl 5.7L	350

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
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.