Part Identification please....

[Jolly Roger]

I was peering behind my grill today and noticed a very small "cooler" looking apparatus on the drivers side just left of the headlight. Looks like a tiny cooler of some sort. Anyone know what it is?

 

[Jolly Roger]

Lots going on back there it seems...

 

[iamdub]

Power steering cooler.

That trans cooler- it's factory?

 

[Jolly Roger]

Power steering cooler.

That trans cooler- it's factory?

Power steering cooler? Never heard of one lol
Its all factory, strange Government vehicle...

 

[iamdub]

Power steering cooler? Never heard of one lol
Its all factory, strange Government vehicle...

Here it is on a Silverado (all the same):

That power steering cooler might be standard on 4WD or part of a special package, like the heavy-duty trailering package. Do you have a hydraulic brake booster?

I need the lines for your style of trans cooler for an aftermarket one that I'm adding. Gonna look up the OEM stuff since I now know they were a factory option.

 

[Jolly Roger]

Here it is on a Silverado (all the same):

That power steering cooler might be standard on 4WD or part of a special package, like the heavy-duty trailering package. Do you have a hydraulic brake booster?

I need the lines for your style of trans cooler for an aftermarket one that I'm adding. Gonna look up the OEM stuff since I now know they were a factory option.

Yes on the hydraulic brake booster, I thought thats the only way they came?

 

[iamdub]

Yes on the hydraulic brake booster, I thought thats the only way they came?

I wish! I'd love to have hydraboost! That explains the cooler (I think). Between the 4WD putting a little extra stress on the steering and the brake booster running off of the power steering pump, that cooler keeps things in check.

 

[alpinecrick]

In the GMT400's power steering coolers were common on 2500, 3500, and 3500HD's, w/hydroboost. The GMT800 Suburbans and Tahoes usually had one. A lot of folks mistake it for a engine oil cooler.

The trans cooler looks like a fin and plate cooler, never seen one of those on GMT800' and 900's, it was always a stacked plate cooler or tube and fin. But if it is a former government fleet vehicle.........

 

[George B]

I have a PS cooler on my 13 suburban. It has vacuum brakes

 

[Jolly Roger]

Naw...wait! Mines not hydroboost, mine is vacuum.
My apologies for the confusion gents, I had a Biden moment.