1974 GMC Derale Parts


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Derale
  • Transmission Cooling Pan; Reduces Fluid Temps up to 50deg.F; Increase Capacity
  • 2-7/8 in. Pan Depth; 2 in. Tube Depth; 1/8 NPT Temp Bung Size
  • Transmission Cooling Pan (GM TH400 Std)
  • Transmission Cooling Pan
  • Product Attributes:
    • Trans Model: Gm- Th400 (auto) 3 Speed
  • Features:
    • Heavy Gauge Stamped Steel Construction
    • Two Stage Heat Dissipating Black Finish
    • 1/8 in. NPT Temperature Sender Port
    • Reduces Fluid Temperatures Up To 50 Degrees Fahrenheit
    • Increases Fluid Capacity By 1 qts. 17 oz.
    • Patented Turbulator Cooling Tubes Add Heat Transfer Capability
    • Magnetic Drain Plug With Increased Magnetic Strength And Rubber/Steel Washer
    • 2-7/8 in. Pan Depth
  • 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 in. 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 in. NPT temperature sender plug.

Additional Fitment Information:
Vehicle
1974 - GMC K15/K1500 Pickup

Derale
  • 12in. Tornado Electric Puller Fan; Standard Mounting Kit
  • 880 CFM; 12 in. Fan Size; 12-3/8 in. Width; 11-1/4 in. x 5-1/4 in. Mounting; 11-13/16 in. Height; 1-1/4 in. Depth; 8.8 Amp Draw
  • 12in. Tornado Electric Fan; Standard Kit
  • Tornado Electric Puller Fan
  • Product Attributes:
    • Diameter (in.): 12.000 In.
  • Features:
    • Reliable/Efficient/High Torque Motors
    • 880 CFM
    • Reversible Design/Can Be Used As Pusher Or Puller
    • Includes Nylon Mounting Kit
  • This 12 in. reversible Tornado fan uses 8 skewed blades, producing 880 CFM at 0 static pressure, drawing only 8.8 amps. Take two of these fans and one of our 16701 Dual fan mounting brackets and you have a powerful dual fan combo in a compact package. Includes mounting kit and illustrated installation instructions.

Additional Fitment Information:
Vehicle
1974 - GMC K35/K3500 Pickup

Derale
  • 1in. Aluminum Belt Fan Spacer
  • Aluminum Spacer Construction; Clear Anodize Color; 1 in. Length; 5/8 in. Male Pilot Diameter; 5/8 in. Or 3/4 in. Female Plot Diameter
  • Fan Spacer; 1in. (Female 5/8-3/4 pilot)
  • Belt Fan Spacer
  • Features:
    • Aluminum Construction
    • Anodized Clear Finish
    • 1 in. Length w/5/8 in. Or 3/4 in. Female Pilot
    • Includes Fine And Course 5/16 in. Thread Hardware
    • Fan Should Have Minimum Clearance Of 3/4 in. From The Radiator
  • This 1 in. belt driven fan spacer comes with a clear anodized finish and is designed to fit most domestic 5/8 in. or 3/4 in. pilot water pumps.

Additional Fitment Information:
Vehicle
1974 - GMC K25/K2500 Suburban

Derale
  • 18in. Heavy Duty Stainless Steel Standard Rotation Flex Fan; Black Hub
  • Stainless Steel; Black Hub; 18-1/4 in. Diameter; 1-3/4 in./2-1/4 in. Flange Bolt Spacing; 2-3/8 in. Depth; Standard Rotation/Clockwise
  • 18in. HD Stnless Steel Flex Fan (Black Hub)
  • Heavy Duty Flex Fan
  • Features:
    • Improves Performance And Mileage
    • Heavy Duty Steel Hubs
    • Durable Stainless Blades
    • Rated Up To 10.000 Revolutions Per Minute
    • Large Surface Area Pulls More Air At Low Speeds
    • Reinforced Blade Construction Extends Fan Life
    • 18 in. Standard Rotation Flex Fan Design
  • This 18 in. 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
1974 - GMC K25/K2500 Pickup

Derale
  • 1/2in. Aluminum Belt Fan Spacer
  • Aluminum Spacer Construction; Clear Anodize Color; 1/2 in. Length; 5/8 in. Male And Female Pilot Diameter; 1-3/4 in./2-1/4 in. Flange Bolt Spacing
  • Fan Spacer; 1/2in. (Female 5/8 Pilot)
  • Belt Fan Spacer
  • Features:
    • Aluminum Construction
    • Anodized Clear Finish
    • 1/2 in. Length w/5/8 in. Female Pilot
    • Includes Fine And Course 5/16 in. Thread Hardware
    • Fan Should Have Minimum Clearance Of 3/4 in. From The Radiator
  • This 1/2 in. belt driven fan spacer comes with a clear anodized finish and is designed to fit most domestic 5/8 in. pilot water pumps.

Additional Fitment Information:
Vehicle
1974 - GMC K25/K2500 Suburban

Derale
  • 19 Row Series 8000 Plate/Fin Transmission Cooler Kit; 11/32in.
  • Plate And Fin Style; Aluminum; 11 in. Width; 6-3/4 in. x 8 in. Mounting; 8-3/4 in. Height; 7/8 in. Depth
  • Plate/Fin Transmission Cooler Kit (11/32in.)
  • Series 8000 Transmission Cooler Kit
  • Features:
    • Embossed Turbulators Inserted In Each Tube Agitate Fluid
    • Extruded Plastic Cooling Fin Guards
    • Improves Transmission Performance
    • Sturdy Furnace Brazed Aluminum Construction
    • 19 Row Cooler Design
    • 3/4 in. Embossed Turbulators Maximize Cooling
    • Rated At 22000 GVW
    • 4 ft. Hose Length
    • Includes Complete Hardware Kit
  • A step up from Tube & Fin type coolers, this Plate and Fin cooler features strong furnace-brazed construction, 7/8 in. wide plates, 3/4 in. 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 in. transmission cooler lines.

Additional Fitment Information:
Vehicle
1974 - GMC C25/C2500 Pickup

Derale
  • Transmission Cooling Pan; Reduces Fluid Temps up to 50deg.F; Increase Capacity
  • 3-1/4 in. Pan Depth; 2-3/8 in. Tube Depth; 1/8 NPT Temp Bung Size
  • Transmission Cooling Pan (GM TH350)
  • Transmission Cooling Pan
  • Product Attributes:
    • Trans Model: Gm- Th350 (auto) 3 Speed
  • Features:
    • Heavy Gauge Stamped Steel Construction
    • Two Stage Heat Dissipating Black Finish
    • 1/8 in. NPT Temperature Sender Port
    • Reduces Fluid Temperatures Up To 50 Degrees Fahrenheit
    • Increases Fluid Capacity By 2 qts.
    • Patented Turbulator Cooling Tubes Add Heat Transfer Capability
    • Magnetic Drain Plug With Increased Magnetic Strength And Rubber/Steel Washer
    • 3-1/4 in. Pan Depth
  • 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 in. 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 in. NPT temperature sender plug.

Additional Fitment Information:
Vehicle
1974 - GMC Sprint

Derale
  • 16 Pass Electra-Cool Remote Transmission Cooler Kit;-6AN Inlets
  • 16 Pass Tube And Fin Cooler Style; 15-3/4 in. Width.; 14-3/4 in. x 5-1/4 in. Mounting; 11-1/2 in. Height; 5 in. Depth
  • 16-Pass Electra-Cool Transmission Cooler Kit (-6AN)
  • Electra-Cool Remote Transmission Cooler Kit
  • Features:
    • Mounts Anywhere Space Permits
    • Electric Fan Supplies Optimum Airflow
    • Dramatically Extends Engine And Transmission Life
    • 16 Pass Tube And Fin Cooler
    • Clear Anodized Aluminum Shroud
    • 650 CFM Reversible Tornado Electric Fan
    • -6AN Inlet Size
    • Rated At 250 PSI Working Pressure/300 PSI Burst Strength
    • Transmission Cooler Kit Includes Fan Mounted Cooler
    • Includes Two -6AN x 3/8 in. Barbed Hose Fittings
    • Includes 180 Degrees Fahrenheit In-Line Thermostat
    • Includes 5/16 in. and 3/8 in. Compression Fittings And Hardware
  • With it's own air supply, the Electra-Cool Remote Transcooler can literally be mounted wherever 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 Tornado fan and aluminum brackets, this kit comes with a complete installation kit to install easily on all vehicles with 5/16 in. or 3/8 in. transmission cooler lines. Also included is an 180°F in-line thermostat for activating the electric fan. This is a durable, trouble-free way to add years to the life of your transmission, and perfect for medium to heavy-duty towing and hauling.

Additional Fitment Information:
Vehicle
1974 - GMC K15/K1500 Suburban

Derale
  • 19in. Heavy Duty Stainless Steel Standard Rotation Flex Fan; Black Hub
  • Stainless Steel; Black Hub; 19-1/4 in. Diameter; 1-3/4 in./2-1/4 in. Flange Bolt Spacing; 2-3/8 in. Depth; Standard Rotation/Clockwise
  • 19in. HD Stnless Steel Flex Fan (Black Hub)
  • Heavy Duty Flex Fan
  • Features:
    • Improves Performance And Mileage
    • Heavy Duty Steel Hubs
    • Durable Stainless Blades
    • Rated Up To 10.000 Revolutions Per Minute
    • Large Surface Area Pulls More Air At Low Speeds
    • Reinforced Blade Construction Extends Fan Life
    • 19 in. Standard Rotation Flex Fan Design
  • Our 19 in. 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
1974 - GMC G15/G1500 Van

Derale
  • Adjustable Electric Fan Controller; 3/8in. NPT Thread In Probe
  • Adjustable; w/3/8 in. NPT Thread In Probe; Maximum Draw Of 25 Amps
  • Adjustable turn-on temperature from 150-240deg.F; Turn-off temperature is preset at 10deg.F below turn-on temperature; Thread in 3/8in. NPT probe; Heavy duty 40/60 amp relay maximum 25 amp continuous draw; AC override circuit included
  • Electric Fan Controller
  • Features:
    • Adjustable Turn-On Temperature From 150 To 240 Degrees Fahrenheit
    • 10 Degrees Lower Turn-Off Temperature Than Turn-On Temperature
    • Thread in 3/8 in. NPT Temperature Sensor
    • Heavy Duty 40/60 Amp Relay
    • Includes AC Override Circuit
    • Ground Circuit Relay
    • Replacement 3/8 in. NPT Sensor Part Number 16750
  • This newly redesigned adjustable electric fan control kit is designed to activate up to 2 fans with a total maximum draw of 25 amps. Includes a water jacket 3/8 in. NPT thread-in probe, relay wire harness and electrical connectors for an easy installation. A/C override circuit included. Adjustable fan controller turn-on range from 150°F - 240°F, and turn-off preset at 10°F lower than turn-on.

Additional Fitment Information:
Vehicle
1974 - GMC C25/C2500 Suburban
Showing 1 - 10 of 16 products

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