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Need Help! 964/996 ABS Pump not available-

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8 captured repliesDiscussion pagination complete · Source accounts, not a confirmed diagnosis
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YOUR RESEARCHNeed Help! 964/996 ABS Pump not available-

Leading reported evidence

Check recyclers in the us, they are also looking

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Performed · outcome unconfirmed · Original poster

I have checked all the Recyclers in the US, they are also looking for this part.

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Need Help! 964/996 ABS Pump not available-
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Leading evidence: 'Check recyclers in the us, they are also looking' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Check recyclers in the us, they are also looking' (1 discussions). For that action, 0 discussions report a resolution and 0 report an unsuccessful attempt. No action has an explicit, attributable resolution report under the current rules. These are forum reports and suggestions, not a confirmed diagnosis.

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Use different abs booster pump than the c2�s

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Explicit resolution reports before identified causes, performed actions and suggestions. Within each level, matching component labels precede direct query mentions and inherited thread context; successful versus unsuccessful discussion counts, owner confirmations and independent discussion support determine order. This is not a probability of success.

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Suggestion · Original poster

The C4�s use a different ABS Booster Pump than the C2�s.

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Need Help! 964/996 ABS Pump not available-
Frequently discussed actions (2)

These are separate views of the same evidence. Frequency alone does not establish a fix, and these counts must not be added together.

Check recyclers in the us, they are also looking

No successful repair reported for this finding.

0
Reported fixes
0
Unsuccessful attempts
1
Discussions
Read evidence and context
Discussions that performed work without a confirmed outcome
1

0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.

0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.

Performed · outcome unconfirmed · Original poster

I have checked all the Recyclers in the US, they are also looking for this part.

Original post Read captured discussion
Need Help! 964/996 ABS Pump not available-

Use different abs booster pump than the c2�s

No successful repair reported for this finding.

0
Reported fixes
0
Unsuccessful attempts
1
Discussions
Read evidence and context
Discussions that contain suggestions
1

0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.

0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.

Suggestion · Original poster

The C4�s use a different ABS Booster Pump than the C2�s.

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Need Help! 964/996 ABS Pump not available-
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Counts describe captured discussions, not unique people or a diagnosis. Author identities are not reliably stored. Exact duplicate evidence is counted once across matching discussions; one discussion counts at most once per action/state. Multiple repairs reported together remain a combination. Suggestions and failed attempts do not establish a fix. Matches cover whole discussions and can include related faults, model variants and incomplete threads.

8 eligible posts · 0 unverified posts · 1 discussions match the subject in their title or opening post.

  • Rennlist: 1 discussions

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Generation: 20261026T163944Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources

POST 1 / ORIGINAL POSTEROriginal post

The C4�s use a different ABS Booster Pump than the C2�s. The P/N is P/N 993 355 953 01 (also 964 355 901 01 or 964 355 953 01) It looks like this . [img]file:///C:/Users/PERRET~1/AppData/Local/Temp/msohtmlclip1/01/clip_image001.png[/img] This part is NOT available ANYWHERE in the world. Porsche dealers in US, Canada and Europe have been out of stock for a long time and there is NO date for when a replacement will be available. I have checked all the Recyclers in the US, they are also looking for this part. If this pump fails you CANNOT drive the car, it takes too much foot pressure to stop the car. If you own a C4 this will eventually affect you! Please help me by emailing Porsche USA and ask them for a resolution. Their email address is [email removed] Please also join me and contact Porsche Club of America (PCA.org) and ask them for their help in pressuring Porsche to get us a replacement. The replacement part will be EXPENSIVE (rumored to be $4,000), but better than a broken car Reply

POST 2Original post

Sounds like a rebuild is your best option. From the photo it looks like it can be stripped apart; perhaps contact a few really good refurbishment shops? you might get lucky and the seals and wear parts are generic metric parts that you could source from mcmaster or equivalent. Don't give up yet!

POST 3Original post

Quotes source post: 15935125

You mean this pump? https://www.sunsetporscheparts.com/o...ly-99335595301

POST 5 / ORIGINAL POSTEROriginal post

Hard to get apart. This is the pump impeller Inside of pump impeller removed Sketch of how I think it works

POST 7Original post

Kinda like a wankel engine, at least in principle Sunset says it ships in 7-10 days Might give them a call on availability

POST 8Original post

Failing that,, take it to a Diesel engine pump rebuild service and let them have a look.. Its likely more about understanding a tight clearance pump in the rebuild process. Injection pumps off a diesel run at sub .0001 tolerances.

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