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I have a 94 3500 ser, pickup with a 6.5 diesel. was having problems with hard starting and stalling orded the FDS/PMDheat sync kit, place the order on a wed. came that fri. installed on my truck and running in 10 min. GREAT product. THANKS SSdiesel supply
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I am extremely happy with SSDiesel and there Products. Everything arrived in great time! I will turn to them for all my 6.5 needs! Shipping was quick from NY to FL !!!
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6.5TD C/K Trucks  >  Turbochargers & Parts  >  GM-4 Wastegate Actuator, Brand New

Brand New GM-4 Turbo Wastegate Actuator. Fits all vehicles using the GM-4 Turbo, which includes 94-95 C/K trucks

GM-4 Wastegate Actuator, Brand New

GM-4 Wastegate Actuator, Brand New

Model: ssd-6422 $99.99
United States and Canada - All Deliveries to the United States and Canada will be made by UPS. You will be quoted the shipping cost and presented with delivery options at the time of checkout. See our shipping calculator for more information.
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Brand new GM Turbo Wastegate Actuator p/n 12456422. Fits all GM-4 Turbos. GM-4's were used in 94-95 C/K pick-ups, suburbans, Tahoes, and Yukons.

The actuator contains a diagpragm and is controlled by vacuum based on a command by the ECM. It DOES NOT contain a spring of any kind. Vacuum must match fuel rates for your diesel to work properly. This is why those spring gadgets sold by the scammers just do not work. They not only not work, but will trip codes too. The computer must be in control of boost. If you want to raise boost, you upgrade the chip or ECM. Fuel rates have to match boost. Do not eliminate the vacuum system or wastegate actuator. 

GM-4 Wastegate Actuator, Brand New

 

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