Flex-a-Lite 41186GMT COOLER KIT - GM Truck / SUV 1999 - 2012 User Manual
Installation instructions
COOLER KIT -
GM Truck / SUV 1999 - 2012
Part #4118GMT & 41186GMT
Use with #57291 & #57001 Rad. / Fan Kits only
“Auxiliary transmission cooler” - Automatic Transmission Only
INSTALLATION INSTRUCTIONS
BE SURE THE ENGINE IS COOL BEFORE PROCEEDING!
Start work on vehicle be removing the factory grill to expose the front side of the A/C condenser area.
1.
This consists of twist-lock fasteners (4ea - 2 top and 2 bottom) turning counter-clockwise about 45 deg. to
release. There is one bolt by the hood latch in the center. When these are loose, the grill has some snap
clips (2ea - 1 right and 1 left side) out by the head lamps that can be “gently” pulled out to remove. The grill
should come off in one piece. Note: this removal process works with the early generation. You may need to
consult your maintenance manual for newer vehicles.
Remove existing cooler (if applicable): Because the existing cooler is designed to run through the radiator
2.
tank for additional cooling, there is no longer a place to connect the transmission coolant lines. The
replacement Flex-a-lite cooler 4118GMT is a higher capacity direct transmission cooler that will better meet
your transmissions’ cooling needs and improve its life expectancy.
Disconnect the tubes from the OEM cooler by pulling out the retaining “C” clips with a pick or small flat-
3.
head screwdriver and remove the oil lines. Keep a drainage container and rags handy as the factory cooler
still contains fluid.
Remove all the bolts holding the transmission cooler and existing brackets. Retain the factory bolts for later
4.
installation.
Temperature sensor: There is an ambient sensor that “may” be located on the driver’s side of the cooler.
5.
Unbolt but do not remove. Finish removing the cooler.
Rev. 09-20-13 98291 Page 1 of 3
Cooler ........................................ 1 ea.
Brackets, Cooler Mounting ........ 2 ea.
Rubber Hose @ 4ft .................... 2ea.
(Hose
Not Included With 41186GMT)
Instruction Sheet ....................... 1 ea.
Flex-a-lite Decal ......................... 1 ea.
*Hardware Kit ............................ 1 ea.
* Hardware Kit Includes:
bolt hex head 1/4-20 x 2”(4ea), nut
nylock 1/4-20 (5ea), flat washer 1/4” I.D.
(12ea), gatorclip 1/2” (8ea), worm drive
hose clamp (6ea), nylon tie straps (6ea),
plastic spacer (4ea), screw PH 1/4-20 x
1/2” (1ea), bracket for temp sensor (1ea),
self tapping bolts (2ea), barbed reduction
coupler (2ea)
Note: Always read instructions and
verify kit contents prior to installation.
Note: To view these instructions or to view a video of this product installation,
visit www.flex-a-lite.com or call 1-800-851-1510 for assistance. It is HIGHLY
recommended to read and review these instructions prior to installation.