Radiator Bushings disintegrated

[DIYguy]

Hi all,
I had a leaking radiator that I changed out today but got a surprise to find the radiator bushings completely gone except for a little plastic cup.


I could not find any official replacement online or in the parts stores…
So I ended up buying this one and “making it work”… by sticking it on the remaining plastic piece from the old bushing.




Does anyone know the part number for the real replacement or where to buy it?

 

[Mooseman]

From what I can tell, GM calls it a Radiator Insulator, part# 89019121. Still available since it was still used up to 2019.

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www.gmpartsnow.com

 

[DIYguy]

From what I can tell, GM calls it a Radiator Insulator, part# 89019121. Still available since it was still used up to 2019.

Loading…

www.gmpartsnow.com

Thanks! I’ll save that to buy the OEM part in case I have to replace the radiator again in the future.

 

[DIYguy]

On a related point, while I was under the car, I noticed I had this plastic piece “loose” inside the bumper/air dam area just in front of the lower part of the condenser and radiator.

It moved around quite freely and has some ear or wing on the ends. Any idea what it is and or how to fasten it?

 

[mrrsm]

As the Air Mass is drawn in across the myriad Aluminum Cooling Fins via the EV Fan... That Rubbery Material acts as an Air Dam to prevent the Fan from vacuuming up air from underneath and adjacent the SUV and ensure that enough transient air motion is guided in and through the Metal Radiator *Finned Innards*.

While the SUV Hood takes care of this need along the upper portion of the Radiator, that lower Air Dam forces in a sufficient quantity near the ground to allow for the Heat Transfer necessary to keep the Coolant Temperature no higher than 210 Degrees Fahrenheit. This is helped to quite a degree when the Boxy SUV is moving at speed... and naturally, not so much when idling at Traffic Stops.

It has been made flexible enough to allow the Radiator enough sealing surface whenever it gyrates a bit on top of its little Round Rubber Grommet *Bumpers* and the adjacent Plastic Mounts. Water weighs around 64 Pounds Per Cubic Foot... thus, any sloshing or downward pounding from normal road driving actions might damage the Radiator Piping if not cushioned in this way.

The destroyed condition of your Old OEM *Bumpers* bears this idea out with the physical proof of its power under The Force of Gravity and the Motion of Angular Momentum when making Left & Right Turns... and Acceleration or Deceleration ...to eventually ruin them.

 

[Mooseman]

On a related point, while I was under the car, I noticed I had this plastic piece “loose” inside the bumper/air dam area just in front of the lower part of the condenser and radiator.

It moved around quite freely and has some ear or wing on the ends. Any idea what it is and or how to fasten it?

Mine's the same. It's just to fill the space between the front and the radiator and steering cooler to direct more air through them.

 

[DIYguy]

Thanks again Mooseman for the assist x2.