 Identify base Boxster calipers from S calipers |
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| dwillouby |
 Apr 23 2022, 03:36 PM
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#1
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Member  Group: Members Posts: 393 Joined: 27-December 02 From: Mt Washington, KY Member No.: 29 Region Association: None 
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Hello
I got a set of front and rear Boxster calipers to upgrade onto my 914. Was told by the seller they are the non S versions. Having issues with finding the correct front pads. The pads for the base Boxster dont fit correctly. Spent a lot of time cleaning & refinishing these. Wondering if I actually received S calipers. Is there a way to confirm what calipers I have? Thanks David |
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| infraredcalvin |
Apr 23 2022, 04:04 PM
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#2
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Distracted Member Group: Members Posts: 1,528 Joined: 25-August 08 From: Ladera Ranch, CA Member No.: 9,463 Region Association: Southern California
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start with posting photos and part numbers
are they already installed on car? pulled this info from a thread on the bird, in summary, S rotors are larger diameter and thicker. The S pad is larger. The caliper should be slightly wider to accommodate a 4mm thicker rotor. Non'S': F Disc 298mm, Pistons in Calipers 2x40,2x36 mm , pad area 216 cm^2 R Disc 292mm, Pistons in Calipers 2x30,2x28 mm , pad area 196 cm^2 "S": F Disc 319mm, Pistons in Calipers 2x40,2x36 mm, pad area 254 cm^2 R Disc 299mm, Pistons in Calipers 2x30,2x28 mm, pad area 196 cm^2 |
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| dwillouby |
Apr 23 2022, 04:13 PM
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#3
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Member Group: Members Posts: 393 Joined: 27-December 02 From: Mt Washington, KY Member No.: 29 Region Association: None
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Part numbers, should have thought of that.
Front 996 351 426 Rear 996 352 422 Thanks David |
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| Shivers |
Apr 23 2022, 04:27 PM
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#4
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Senior Member Group: Members Posts: 2,426 Joined: 19-October 20 From: La Quinta, CA Member No.: 24,781 Region Association: Southern California |
Where I am looking they are showing two more numbers. Like 996 351 426-01 or 11
The places I went are saying 911, with the 01 where 11 looks like it fits a few things including boxster. |
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| sixnotfour |
Apr 23 2022, 07:29 PM
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#5
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914 Wizard Group: Members Posts: 10,434 Joined: 12-September 04 From: Life Elevated..planet UT. Member No.: 2,744 Region Association: Rocky Mountains 
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Front left: 986-351-421-03
Front right: 986-351-422-03 Rear left: 986-352-423-01 Rear right: 986-352-424-01 https://www.pelicanparts.com/catalog/SuperC..._BRKPRF_pg1.htm |
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| sixnotfour |
Apr 23 2022, 07:31 PM
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#6
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914 Wizard Group: Members Posts: 10,434 Joined: 12-September 04 From: Life Elevated..planet UT. Member No.: 2,744 Region Association: Rocky Mountains
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your P/N
Genuine: Parts SKU: 996-351-426-01 Positions: Right, Front Right Right Other Names: Caliper, Brake Caliper W O Pa Description: 911. 2wd. Right. Without gt3. Condition: New Sold In Quantity: 1 |
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| FL000 |
Apr 24 2022, 08:37 AM
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#7
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Member Group: Members Posts: 400 Joined: 31-January 12 From: Lancaster, CA Member No.: 14,076 Region Association: Southern California
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Your calipers appear to be S version. I have them on mine with the following part numbers:
Rear calipers 996.352.421 996.352.422 Front calipers 996.351.426 996.351.425 |
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| dwillouby |
Apr 25 2022, 08:24 AM
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#8
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Member Group: Members Posts: 393 Joined: 27-December 02 From: Mt Washington, KY Member No.: 29 Region Association: None
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QUOTE(FL000 @ Apr 24 2022, 07:37 AM)  Your calipers appear to be S version. I have them on mine with the following part numbers: Rear calipers 996.352.421 996.352.422 Front calipers 996.351.426 996.351.425 Thanks for the info, So these seem to be S calipers. You stated you have the S calipers on your car? Did you use a Boxster front rotor? I have new 24mm 911 rotors that I guess I have to eat.  Rotor doesnt go past old pads.Thanks David |
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| dwillouby |
Apr 25 2022, 11:37 AM
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#9
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Member Group: Members Posts: 393 Joined: 27-December 02 From: Mt Washington, KY Member No.: 29 Region Association: None
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Another nail in my coffin.
Tried putting the front wheel on and found that the front calipers rub. Using 6 X 16 Fuchs. Rear seem to be good with 7 X 16 Fuchs. Now my options seem to be. Grind the calipers for clearance and deal with all the other issues. Work with the seller as they were misrepresented in the ad. Buy or trade for 2 correct non Boxster front calipers and try to sell these. Put the old calipers and rotors back on and say the hell with it. David |
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| FL000 |
Apr 25 2022, 11:42 PM
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#10
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Member Group: Members Posts: 400 Joined: 31-January 12 From: Lancaster, CA Member No.: 14,076 Region Association: Southern California
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Bummer with the issues you are having. I can dig up part numbers if it helps, but I did have the following info handy in my notes for the front rotor.
28 mm wide 12.5” or 318 mm diameter |
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| infraredcalvin |
Apr 26 2022, 01:56 PM
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#11
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Distracted Member Group: Members Posts: 1,528 Joined: 25-August 08 From: Ladera Ranch, CA Member No.: 9,463 Region Association: Southern California
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Does the front work with a wheel spacer?
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| dwillouby |
Apr 27 2022, 08:02 AM
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#12
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Member Group: Members Posts: 393 Joined: 27-December 02 From: Mt Washington, KY Member No.: 29 Region Association: None
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Thanks for all the info.
I am going to try to buy the correct versions and sell the S calipers. David |
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