Select the correct transmission cooler by determining where there is enough space to mount it. The diagram on the left numbers the best three positions to mount the transmission cooler in order. Transmission coolers are more efficient when they receive maximum air flow. At Position 1, the transmission cooler is 100% efficient. Position 2, between the air conditioning condenser and radiator, is 75% efficient while Position 3, between the radiator and fan, is only 60% efficient. If positions 2 or 3 are used, a larger transmission cooler will be needed to compensate for the loss of cooling power. If this is the case, choose a transmission cooler that is one or two sizes larger.
Tech Tips: Transmission fluid cannot be over-cooled, but it is critical in extreme cold conditions to allow the vehicle to warm up before driving.
Transmission Coolers Specs:
Required Transmission Adapter Fitting:
1998 GMC C/K Series Pickup Hose Fitting - D13018Features:
11" Wide x 12" tall x 7/8" deep, efficient heat exchanger will prolong the life of your transmission and improve its overall performance. Specifically designed for vehicles with late-model, electronic overdrive transmissions.
Tech Tip:
D13018 - 5/8" Inverted Flare Fittings required only if vehicle equipped with 5/8" hex on trans line.
More Information >Transmission Coolers Specs:
Required Transmission Adapter Fitting:
1998 GMC C/K Series Pickup Hose Fitting - D13018Features:
11" Wide x 12" tall x 7/8" deep, efficient heat exchanger will prolong the life of your transmission and improve its overall performance. Specifically designed for vehicles with late-model, electronic overdrive transmissions.
Tech Tip:
D13018 - 5/8" Inverted Flare Fittings required only if vehicle equipped with 5/8" hex on trans line.
More Information >Transmission Coolers Specs:
Required Transmission Adapter Fitting:
1998 GMC C/K Series Pickup Hose Fitting - D13018Features:
11" Wide x 12" tall x 7/8" deep, efficient heat exchanger will prolong the life of your transmission and improve its overall performance. Specifically designed for vehicles with late-model, electronic overdrive transmissions.
Tech Tip:
D13018 - 5/8" Inverted Flare Fittings required only if vehicle equipped with 5/8" hex on trans line.
More Information >Transmission Coolers Specs:
Required Transmission Adapter Fitting:
1998 GMC C/K Series Pickup Hose Fitting - D13018Features:
...The Derale Insta-dapt radiator adapter fits most vehicles with 5/16" transmission lines, but not all. In some cases, additional fittings or alteration of the OEM lines or hoses may be requi...
Tech Tip:
D13018 - 5/8" Inverted Flare Fittings required only if vehicle equipped with 5/8" hex on trans line.
More Information >Transmission Coolers Specs:
Required Transmission Adapter Fitting:
1998 GMC C/K Series Pickup Hose Fitting - D13018Features:
...The Derale Insta-dapt radiator adapter fits most vehicles with 5/16" transmission lines, but not all. In some cases, additional fittings or alteration of the OEM lines or hoses may be requi...
Tech Tip:
D13018 - 5/8" Inverted Flare Fittings required only if vehicle equipped with 5/8" hex on trans line.
More Information >Transmission Coolers Specs:
Required Transmission Adapter Fitting:
1998 GMC C/K Series Pickup Hose Fitting - D13018Features:
...The Derale Insta-dapt radiator adapter fits most vehicles with 5/16" transmission lines, but not all. In some cases, additional fittings or alteration of the OEM lines or hoses may be requi...
Tech Tip:
D13018 - 5/8" Inverted Flare Fittings required only if vehicle equipped with 5/8" hex on trans line.
More Information >Transmission Coolers Specs:
Required Transmission Adapter Fitting:
1998 GMC C/K Series Pickup Hose Fitting - D13018Features:
...The Derale Insta-dapt radiator adapter fits most vehicles with 5/16" transmission lines, but not all. In some cases, additional fittings or alteration of the OEM lines or hoses may be requi...
Tech Tip:
D13018 - 5/8" Inverted Flare Fittings required only if vehicle equipped with 5/8" hex on trans line.
More Information >Transmission Coolers Specs:
Required Transmission Adapter Fitting:
1998 GMC C/K Series Pickup Hose Fitting - D13018Features:
...warranty Note: The Derale Insta-dapt radiator adapter fits most vehicles with 5/16" transmission lines, but not all. In some cases, additional fittings or alteration of the OEM lines or hoses...
Tech Tip:
D13018 - 5/8" Inverted Flare Fittings required only if vehicle equipped with 5/8" hex on trans line.
More Information >Transmission Coolers Specs:
Features:
...on vintage hot rods and race cars, Derale's pan coolers are designed to add a little extra cooling power to keep your vehicle's transmission operating at its best. Simple installation i...
Installation Notes:
Designed for vehicles with a 4L80E transmission.
More Information >Transmission Coolers Specs:
Features:
...on vintage hot rods and race cars, Derale's pan coolers are designed to add a little extra cooling power to keep your vehicle's transmission operating at its best. Simple installation i...
Installation Notes:
Designed for vehicles with a 4L80E transmission.
More Information >Transmission Coolers Specs:
Features:
...on vintage hot rods and race cars, Derale's pan coolers are designed to add a little extra cooling power to keep your vehicle's transmission operating at its best. Simple installation i...
Installation Notes:
Designed for vehicles with a 4L80E transmission.
More Information >Transmission Coolers Specs:
Required Transmission Adapter Fitting:
1998 GMC C/K Series Pickup Hose Fitting - D13018Features:
...x 5" tall x 3/4" deep Core width: 12-1/4" Distance between inlets: 3-3/4" 1-Year warranty Note: The Derale Insta-dapt radiator adapter fits most ...
Tech Tip:
D13018 - 5/8" Inverted Flare Fittings required only if vehicle equipped with 5/8" hex on trans line.
More Information >Transmission Coolers Specs:
Required Transmission Adapter Fitting:
1998 GMC C/K Series Pickup Hose Fitting - D13018Features:
...dimensions: 13" wide x 7-1/2" tall x 3/4" deep Core width: 10-1/8" Distance between inlets: 6-1/4" 1-Year warranty Note: The Derale Insta-dapt radiator ad...
Tech Tip:
D13018 - 5/8" Inverted Flare Fittings required only if vehicle equipped with 5/8" hex on trans line.
More Information >Transmission Coolers Specs:
Required Transmission Adapter Fitting:
1998 GMC C/K Series Pickup Hose Fitting - D13018Features:
...dimensions: 13" wide x 7-1/2" tall x 3/4" deep Core width: 10-1/8" Distance between inlets: 6-1/4" 1-Year warranty Note: The Derale Insta-dapt radiator ad...
Tech Tip:
D13018 - 5/8" Inverted Flare Fittings required only if vehicle equipped with 5/8" hex on trans line.
More Information >Transmission Coolers Specs:
Required Transmission Adapter Fitting:
1998 GMC C/K Series Pickup Hose Fitting - D13018Features:
...dimensions: 13" wide x 7-1/2" tall x 3/4" deep Core width: 10-1/8" Distance between inlets: 6-1/4" 1-Year warranty Note: The Derale Insta-dapt radiator ad...
Tech Tip:
D13018 - 5/8" Inverted Flare Fittings required only if vehicle equipped with 5/8" hex on trans line.
More Information >Transmission Coolers Specs:
Required Transmission Adapter Fitting:
1998 GMC C/K Series Pickup Hose Fitting - D13018Features:
...9-13/16" tall 1-Year warranty Note: The Derale Insta-dapt radiator adapter fits most vehicles with 5/16" transmission lines, but not all. In some cases, additional fittings or alteration o...
Tech Tip:
D13018 - 5/8" Inverted Flare Fittings required only if vehicle equipped with 5/8" hex on trans line.
More Information >Transmission Coolers Specs:
Required Transmission Adapter Fitting:
1998 GMC C/K Series Pickup Hose Fitting - D13018Features:
...15-1/4" wide x 10" tall x 3/4" deep Core width: 12-1/4" Distance between inlets: 8-3/4" 1-Year warranty Note: The Derale Insta-dapt radiator adapter fits m...
Tech Tip:
D13018 - 5/8" Inverted Flare Fittings required only if vehicle equipped with 5/8" hex on trans line.
More Information >Transmission Coolers Specs:
Required Transmission Adapter Fitting:
1998 GMC C/K Series Pickup Hose Fitting - D13018Features:
...15-1/4" wide x 10" tall x 3/4" deep Core width: 12-1/4" Distance between inlets: 8-3/4" 1-Year warranty Note: The Derale Insta-dapt radiator adapter fits m...
Tech Tip:
D13018 - 5/8" Inverted Flare Fittings required only if vehicle equipped with 5/8" hex on trans line.
More Information >Transmission Coolers Specs:
Required Transmission Adapter Fitting:
1998 GMC C/K Series Pickup Hose Fitting - D13018Features:
...15-1/4" wide x 10" tall x 3/4" deep Core width: 12-1/4" Distance between inlets: 8-3/4" 1-Year warranty Note: The Derale Insta-dapt radiator adapter fits m...
Tech Tip:
D13018 - 5/8" Inverted Flare Fittings required only if vehicle equipped with 5/8" hex on trans line.
More Information >Transmission Coolers Specs:
Required Transmission Adapter Fitting:
1998 GMC C/K Series Pickup Hose Fitting - D13018Features:
...warranty Note: The Derale Insta-dapt radiator adapter fits most vehicles with 5/16" transmission lines, but not all. In some cases, additional fittings or alteration of the OEM lines or hoses...
Installation Notes:
Product is designed for vehicles which have a -6AN threaded fitting and braided steel hose
Tech Tip:
D13018 - 5/8" Inverted Flare Fittings required only if vehicle equipped with 5/8" hex on trans line.
More Information >Transmission Coolers Specs:
Required Transmission Adapter Fitting:
1998 GMC C/K Series Pickup Hose Fitting - D13018Features:
...Inlets: 11/32" hose barb Overall dimensions: 16-5/8" wide x 10-1/4" tall x 3/4" deep Core length: 13-3/4" Distance between inlets: 8-3/4" 1-Year warranty ...
Tech Tip:
D13018 - 5/8" Inverted Flare Fittings required only if vehicle equipped with 5/8" hex on trans line.
More Information >Transmission Coolers Specs:
Required Transmission Adapter Fitting:
1998 GMC C/K Series Pickup Hose Fitting - D13018Features:
...x 5" tall x 3/4" deep Core width: 10-1/8" Distance between inlets: 3-3/4" 1-Year warranty Note: The Derale Insta-dapt radiator adapter fits most ...
Tech Tip:
D13018 - 5/8" Inverted Flare Fittings required only if vehicle equipped with 5/8" hex on trans line.
More Information >Transmission Coolers Specs:
Required Transmission Adapter Fitting:
1998 GMC C/K Series Pickup Hose Fitting - D13018Features:
...Inlets: 11/32" hose barb Overall dimensions: 12-3/4" wide x 12-5/8" tall x 3/4" deep Core length: 9-5/8" Distance between inlets: 11-1/4" 1-Year warranty ...
Tech Tip:
D13018 - 5/8" Inverted Flare Fittings required only if vehicle equipped with 5/8" hex on trans line.
More Information >Transmission Coolers Specs:
Required Transmission Adapter Fitting:
1998 GMC C/K Series Pickup Hose Fitting - D13018Features:
...1-Year warranty Note: The Derale Insta-dapt radiator adapter fits most vehicles with 5/16" transmission lines, but not all. In some cases, additional fittings or alteration of the OEM lines or h...
Installation Notes:
Product is designed for vehicles which have a -6AN threaded fitting and braided steel hose
Tech Tip:
D13018 - 5/8" Inverted Flare Fittings required only if vehicle equipped with 5/8" hex on trans line.
More Information >Transmission Coolers Specs:
Required Transmission Adapter Fitting:
1998 GMC C/K Series Pickup Hose Fitting - D13018Features:
...Inlets: 11/32" hose barb Overall dimensions: 16-5/8" wide x 12-5/8" tall x 3/4" deep Core length: 13-3/4" Distance between inlets: 11-1/4" 1-Year warranty ...
Tech Tip:
D13018 - 5/8" Inverted Flare Fittings required only if vehicle equipped with 5/8" hex on trans line.
More Information >Transmission Coolers Specs:
Required Transmission Adapter Fitting:
1998 GMC C/K Series Pickup Hose Fitting - D13018Features:
...3" tall 1-Year warranty Note: The Derale Insta-dapt radiator adapter fits most vehicles with 5/16" transmission lines, but not all. In some cases, additional fittings or alteration o...
Tech Tip:
D13018 - 5/8" Inverted Flare Fittings required only if vehicle equipped with 5/8" hex on trans line.
More Information >Transmission Coolers Specs:
Required Transmission Adapter Fitting:
1998 GMC C/K Series Pickup Hose Fitting - D13018Features:
...3" tall 1-Year warranty Note: The Derale Insta-dapt radiator adapter fits most vehicles with 5/16" transmission lines, but not all. In some cases, additional fittings or alteration o...
Tech Tip:
D13018 - 5/8" Inverted Flare Fittings required only if vehicle equipped with 5/8" hex on trans line.
More Information >Transmission Coolers Specs:
Required Transmission Adapter Fitting:
1998 GMC C/K Series Pickup Hose Fitting - D13018Features:
...3" tall 1-Year warranty Note: The Derale Insta-dapt radiator adapter fits most vehicles with 5/16" transmission lines, but not all. In some cases, additional fittings or alteration o...
Tech Tip:
D13018 - 5/8" Inverted Flare Fittings required only if vehicle equipped with 5/8" hex on trans line.
More Information >Transmission Coolers Specs:
Required Transmission Adapter Fitting:
1998 GMC C/K Series Pickup Hose Fitting - D13018Features:
...3" tall 1-Year warranty Note: The Derale Insta-dapt radiator adapter fits most vehicles with 5/16" transmission lines, but not all. In some cases, additional fittings or alteration o...
Tech Tip:
D13018 - 5/8" Inverted Flare Fittings required only if vehicle equipped with 5/8" hex on trans line.
More Information >Transmission Coolers Specs:
Features:
...span>Derale's pan coolers are designed to add a little extra cooling power to keep your vehicle's transmission operating at its best. Simple installation involves replacing the existing oil pan with th...
Installation Notes:
Designed for vehicles with a 700R4, 4L60, or 4L60E transmission.
More Information >Transmission Coolers Specs:
Features:
...span>Derale's pan coolers are designed to add a little extra cooling power to keep your vehicle's transmission operating at its best. Simple installation involves replacing the existing oil pan with th...
Installation Notes:
Designed for vehicles with a 700R4, 4L60, or 4L60E transmission.
More Information >Transmission Coolers Specs:
Features:
...span>Derale's pan coolers are designed to add a little extra cooling power to keep your vehicle's transmission operating at its best. Simple installation involves replacing the existing oil pan with th...
Installation Notes:
Designed for vehicles with a 700R4, 4L60, or 4L60E transmission.
More Information >Transmission Coolers Specs:
Features:
...span>Derale's pan coolers are designed to add a little extra cooling power to keep your vehicle's transmission operating at its best. Simple installation involves replacing the existing oil pan with th...
Installation Notes:
Designed for vehicles with a 700R4, 4L60, or 4L60E transmission.
More Information >Videos
for Transmission Coolers
Help Articles
for Transmission Coolers
Expert Answers
for Transmission Coolers
You can install a stack cooler in your vehicle. The Class ratings are there as a reference point to a hitch Class. For example if someone has a Class III hitch they can look at coolers, see a Class III and say, hey, I have a Class III hitch so this…
view full answer...Hey Sam, I would recommend the Derale transmission cooler part #D13504 with the radiator adapter part #D13035 for your 2008 GMC Yukon XL with the 5.3 liter. This is a larger cooler that is the efficient plate fin design that we know works great on…
view full answer...The difference between the Class II and Class III hitches has to do with their Gross Trailer Weight (GTW), their Tongue Weight (TW), and their Hitch Receiver Size. Class II trailer hitch receivers have a 1-1/4 inch receiver and can be rated up to…
view full answer...In regards to your 2013 Chevrolet Silverado, if you will be removing the auxiliary transmission cooler then I recommend using the Derale Series 9000 Plate-Fin Transmission Cooler Kit part #D13614 to replace it. This cooler measures 11" wide x…
view full answer...The method we use to determine the correct line to install a transmission cooler on is pretty simple. You want to install the cooler on the return line. To determine which line is the return line you will want to start with your truck totally cooled…
view full answer...I spoke with my contact at Curt and he put together a chart that has all of the dimensions of the hitches you referenced.
view full answer...For sag from towing a trailer the best recommendation I can make is actually a weight distribution system. Suspension enhancement will help level your truck while towing. But the advantage to a weight distribution system is that it levels the vehicle…
view full answer...Adding a cooler to your 2009 Chevrolet Suburban will help extend the life of your transmission and help increase the performance. We do offer a transmission and engine oil cooler designed for GM vehicles. It is part #D15903. This cooler has the same…
view full answer...Functionally speaking, there isn't a huge difference. The Curt #C56382 has a slightly lower capacity at 3 amps for circuit for stop/turn signals and 6 amps for taillights. The Tekonsha #118781 has a capacity of 5 amps per stop/turn circuit and…
view full answer...Hello Jim. For you I Recommend the SumoSprings Solo Custom Helper Springs #SS47PV. These are 1,800 lb capacity urethane jounce springs which will replace the factory bumpstops. I like these for a few reasons. The 1,800 lb capacity will be enough to…
view full answer...Seems like you're looking to cool your engine oil. This Derale Engine cooler kit #D15450 is designed to fit GM vehicles. Mount it wherever you will get the most air flow. Whenever adding engine oil coolers, remember that you will increase the…
view full answer...The good news is that 210 degrees isn't the worst temperature for a transmission to get to when towing. Ideally it's under 200 but you haven't done massive damage to your transmission. For your 2011 GMC Yukon XL I recommend the Derale…
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