Duramax Fan Clutch Upgrade

The radiator will often load up with debris behind the intercooler.

Window fan screen. The fan moves counter clockwise while looking from the front of the motor so ive been trying to turn it clockwise. Designed to engage more consistently and at a lower temperature than the oe unit to prevent overheating. Just stand in front of the grill it will almost pull you in.

14 ratchet flex rachet helps 12. Changing fan clutch on lml duramax diesel engine. If your motor mounts are sagging you should replace them with energy suspension urethane inserts to get the motor back where it needs to be.

This fan really sucks. This item is on sale. Big difference between electric fan and electric fan clutch.

This is for single alternator engines. The duramax fan blade bolts right onto it no problems. Be sure to clean the air side of the cooling stack.

Otherwise the bigger fan may rub on your fan shroud. This blade is the same gm part as used on all duramax diesel engines. Inside the fan clutch is a series of concentric rings.

And i cant remember which way to turn the darn nut. For a fan clutch run the hayden severe duty fan clutch for the 99 65l. Both times it came off pretty easy with the fan clutch holder i just stick little bolts in the pulley and use that and a piece of steel i made to fit on the nut.

You can spend the coin for the kenendy fan clutch which will kick in a little sooner or you can cut the bithermal spring yourself and get a simoiar result for alot less money. Fits 2006 2010 duramax lbz lmm engines in pickup trucks. The clutch is a hd made in usa unit modified to adapt the duramax fan to the 65 td water pump and engagement is approximately 15df sooner then your stock clutch for better cooling.

Thats right the duramax fan bolts right up to the hayden clutch with the stock bolts the water pump is a direct fit and the clutch spins right on.