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Radiator Replacement

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Old Feb 27, 2017 | 12:43 PM
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From: Kirkland WA
Default Radiator Replacement

Hi Guys,

I'm going to replace the radiator on my '97 with a manual transmission. I ordered the factory replacement AC Delco radiator:

"ACDELCO 20889 {#20931, 52470606, 52474697} GM Original Equipment Info
FitsTrans. code MM6; CORE SIZE 24-7/8IN X 17-1/8IN X 7/8 IN, CODE KDM,BBK; 6 speed Manual transmission
OrCORE SIZE 24-7/8IN X 17-1/8IN X 7/8 IN, CODE KDM; 4 speed Automatic trans.
"

It seems it's the same radiator for both auto and manual transmission cars. Since I don't have automatic transmission oil cooler lines to connect to the radiator, is there a plug or something that will block these off?
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Old Feb 27, 2017 | 01:32 PM
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DetroitPlac
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According to Rock Auto, there's a separate auto trans part:

ACDELCO 21451 {#10449531, 21734, 89018594} GM Original Equipment Info
Trans. code 4L60-E; CORE SIZE 24-7/8IN X 17-1/8IN X 7/8 IN, CODE GBY; 4 speed Automatic trans.
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Old Feb 27, 2017 | 02:54 PM
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Originally Posted by 8VETTE7
Chances are very good that it comes with plastic caps over the openings for the trans fluid inlet/outlet lines. With a little black RTV Silicon spread over the caps to insure they don't fall out you should be fine.

Black RTV it is! Thanks!
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Old Feb 27, 2017 | 02:57 PM
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ehillard0
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Originally Posted by DetroitPlac
According to Rock Auto, there's a separate auto trans part:

ACDELCO 21451 {#10449531, 21734, 89018594} GM Original Equipment Info
Trans. code 4L60-E; CORE SIZE 24-7/8IN X 17-1/8IN X 7/8 IN, CODE GBY; 4 speed Automatic trans.

Looks like that's for the 01-04 model years only, they don't list a separate one for the 97 model year.
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