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Are Boxter rear brakes the same size as the fronts???

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Old 01-23-2008, 07:20 PM
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Default Are Boxter rear brakes the same size as the fronts???

And, could they be used on the front of a car (i.e. an Audi)???

Left PN# <b>996 352 421</b>
Right PN# <b>996 352 422</b>

They were the same size on my old 944S2, but not sure if they are interchangeable.
Old 01-23-2008, 07:28 PM
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Default no they aren't

and the part numbers you have listed are for 911s, boxster calipers should start with 986 or 987 iirc.
Old 01-23-2008, 08:49 PM
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Default not necessarily.. the original production Boxster & the 996 911 shared the same calipers. So

often 996 PN# can be found in Boxster literature. When I did my 986 brake research 2yrs ago, I came up with same numbers as c4S6 posted for the rear calipers. In fact many of the Boxster brake PN#'s were 996...It's not until I looked up calipers for the BoxsterS that I found 986 PN#'s.

The thing that confuses me though is that the calipers were different colours depending on which Porsche they were fitted on. So there has to be some amount of differentiation between the individual part numbers. For example, Boxster &amp; 996C2 calipers are black, 996C4 are silver, and BoxsterS are red.

This is the PN for a BoxsterS rear caliper: 996.352.421
Old 01-23-2008, 08:58 PM
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Default As I recall

the original (1997) front Boxster brakes are unique to that model. The 996 front brakes are the same as Boxster S brakes, just a difference in color.

Mark near Chicago
Old 01-23-2008, 09:11 PM
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They are Boxter S calipers, which I think are the same as the 996 Carrera.
Old 01-23-2008, 09:40 PM
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Default During the design off the 986 a company called Shingajitsu was

hired to streamline the Porsche Production lines. They are also the company that works with Toyota. Actually is was started by former Toyota Exec's.

Major changes were made, the largest one being to try and eliminate as many unique parts as possible.

It's much cheaper to use existing engineering and the inventory costs savings are huge. It's a great system but they took it a little to far in the beginning. That is why the front of the 996 looks so much like a Boxster.
Old 01-24-2008, 09:41 AM
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Default So, how does that relate to my question?? ....

Are they the same?

"Kaizen" might be beneficial to me here.
Old 01-24-2008, 11:49 AM
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oops, it was meant to go after quattro.pilots comment in regards to the PN issues.
Old 01-24-2008, 04:08 PM
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yep, u are correct. PN#'s for orig Boxster fronts are: 986.351.421.03 &amp; 986.351.422.03
Old 01-24-2008, 04:09 PM
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cool stuff, neat to know the history. thx


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