6.5 Balanced flow cooling system. Upgraded and lower price!

(((NOTICE))) All international customers only. Please request an invoice by email. Include your postal code and a list of items wanted. We will email you an invoice. DO NOT BUY DIRECTLY FROM SITE. Thank you.

AK and HI customers please contact us for invoice also.

BF cooling system


Product Price: USD 364.99

Kit has been upgraded and the price lowered! Was $499 now $364.99

Also components are available separately, just click the drop down menu right above the Add To Cart button.


The water pump now has an impeller designed to move more water. This means the coolant is cycled through the radiator more often in a given time than other pumps. The pressure is also raised slightly to help avoid hot spots, steam pockets.


We have teamed up with Flowkooler on the water pump.

This is what they say.

6.5L diesels run a little warmer but if your seeing hi temps and you’re at slow speed or under a load then you may need a more flow and balanced circulation.  Flowkooler designed a high flow water pump 1677-HO Opt for these conditions.  It has a CNC machined billet impeller with increased vane count and a reduced casting-to-impeller vane clearance.  It achieves greater flow rates, higher head pressure and a more balanced and efficient flow. The impeller color is due to Type II Class II military grade surface coating which protects against corrosive fluids. 

FlowKooler introduced the first hi flow pumps and continues to improve impeller design. Why is increased flow so important to cooling a hot Chevy diesel engine? Because it has been proven time and time again that reducing the cycle time between the heat source and the heat sink creates more opportunities to shed heat and drop engine temperatures.

From 0-3,300 RPM…Nothing Beats a FlowKooler!”


This system is one of the best upgrades to the cooling system you can do. Fits trucks, Suburbans and vans.

  1. High flow Balanced Flow water pump w/gasket witch flows closer to 50-50% to each side of the block. Unlike previous designs that could starve #8 cylinder of coolant causing many issues.
  2. The severe duty fan clutch.
  3. 21″ diameter fan blade. This blade is proven to pull much more air than a metal stock blade or an electric fan ever will.


If you have the dual thermostat you will benefit from our (BRF) Bypass Restrictor Fitting.

Notice: will be shipped in two boxes due to size and weight.




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