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Old 06-27-2013, 05:04 PM   #1
naCAnItihS
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Default Is there really a difference? A/c compressors

Ok so my 01 Foz needs a new ac compressor 73111AE021. A local person is selling one from a 98-00 Foz 73111FA132 and one for 02-05 WRX 73111FE021.

Is there honestly a difference? If so what is the difference? They all look the same and seem to mount the same. Diff clutch design?

Or maybe better question: Are they interchangeable?

I know a slight change/mod to the design will result in a new p/n but this doesnt necessarily mean that it is not compatible with other years.
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Old 06-27-2013, 05:16 PM   #2
kevin85193
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73111ae021 = 99-02
73111fa132 = 96-00
73111fe021 = 00-02 impreza

that's all the help i can be, hah
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Old 06-27-2013, 05:19 PM   #3
cal_look_zero
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Okay, so from monkeying with a lot of earlier Subarus, here's what I've learned. There's a couple of different manufacturers that make the compressors. The early Calsonics were really wide and used a slightly different triangle bracket on the bottom than the others:



The other differences are where the lines come in at and how they wire in. As long as it's a match for fit and wiring, you should be set.
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Old 06-28-2013, 01:33 PM   #4
avk
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cal-look, thanks for posting that.
It could be possible as well that drive pulleys are somewhat different in diameter, because of different gearing between 2.5 and 2.2 models and corresponding r.p.m. numbers at cruising speed. That's just my speculation.
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Old 07-01-2013, 02:50 PM   #5
naCAnItihS
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hmm interesting info.

Has anyone actually successfully installed a diff model compressor on their car?
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Old 07-01-2013, 06:58 PM   #6
cal_look_zero
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Quote:
Originally Posted by naCAnItihS View Post
hmm interesting info.

Has anyone actually successfully installed a diff model compressor on their car?
Had a 91 Legacy that I changed lines and compressor on to convert it to 134a. My R12 compressor had seized so it made sense. Most all of the EJ engine cars' lines run to the same places, so as long as you have the right lines, it's straightforward.
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