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O2 sensors - confirm Bosch part numbers

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YOUR RESEARCHO2 sensors - confirm Bosch part numbers

Leading reported evidence

Check quite a few websites

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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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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

^^^ Appreciate the verification , I checked quite a few websites that agree those are the correct part numbers .

O2 sensors - confirm Bosch part numbers
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Leading evidence: 'Check quite a few websites' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Check quite a few websites' (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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1 matching discussions · 10 captured posts examined · 0 partial discussions

Compare 3 other evidence results

Use bosch� not sure of the numbers though

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Read evidence and context

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.

Discussions that performed work without a confirmed outcome
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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

I used Bosch� not sure of the numbers though.

O2 sensors - confirm Bosch part numbers

Use on my '99 c2

Performed · outcome unconfirmed

No successful repair reported for this finding.

0
Reported fixes
0
Unsuccessful attempts
1
Discussions
Read evidence and context

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.

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

That's what I used on my '99 C2.

O2 sensors - confirm Bosch part numbers

Use ngk/denso or others

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Read evidence and context

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.

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

Is Bosch the way to go or are others using NGK/Denso or others ?

O2 sensors - confirm Bosch part numbers
Frequently discussed actions (4)

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

Check quite a few websites

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

^^^ Appreciate the verification , I checked quite a few websites that agree those are the correct part numbers .

O2 sensors - confirm Bosch part numbers

Use bosch� not sure of the numbers though

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

I used Bosch� not sure of the numbers though.

O2 sensors - confirm Bosch part numbers

Use ngk/denso or others

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

Is Bosch the way to go or are others using NGK/Denso or others ?

O2 sensors - confirm Bosch part numbers

Use on my '99 c2

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

That's what I used on my '99 C2.

O2 sensors - confirm Bosch part numbers
Coverage and how to read this overview

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.

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

  • Rennlist: 1 discussions

0 evidence records excluded for query context · 0 excluded by outcome qualification · 0 adjusted by outcome qualification.

0 acknowledgements have no verified action link; they do not establish a repair result.

Generation: 20261026T174436Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources

POST 1 / ORIGINAL POSTEROriginal post

Hello as part of my engine rebuild I want to install four new O2 sensors . Car is a 1999 C4 . I believe these are direct fit Bosch part numbers: 13564 upstream 13723 downstream Do you guys agree those are the correct part numbers ? Is Bosch the way to go or are others using NGK/Denso or others ? Thanks in advance .

POST 3Original post

I used Bosch� not sure of the numbers though. There are many available - including ones without the plug ends that are much less expensive. In the end I went with the drive fit replacements as I didn�t want to mess around with plugs/splices etc� I think they were in the $160-$180 range for the more expensive ones (up stream) and $120 for the less� it was a few years ago. Job was a major pita - they were the original sensors. I had to remove the cats and do some �major surgery� to get them out�

POST 4 / ORIGINAL POSTEROriginal post

The two part numbers I listed above are plug and play with the connectors already terminated . Prices are in the 75.00-80.00 each range .

POST 5Original post

https://www.fcpeuro.com/Porsche-part...b=9&d=15675&v= fcp shows a different down stream bosch #15250. I have had no issues with my bosch replacents

POST 6Original post

Quotes source post: 18032511

That's what I used on my '99 C2. $74.00 & $75.00 from Amazon. Not sure if they're cheaper elsewhere but I needed them quick.

POST 7 / ORIGINAL POSTEROriginal post

^^^ Appreciate the verification , I checked quite a few websites that agree those are the correct part numbers . There are some sites that state different part numbers for whatever reason . Prices are all over the place .

POST 8 / ORIGINAL POSTEROriginal post

Ordered the sensors from Rock Auto today . The 13564 were $69.99 each the 13723 were $71.79 each. Original Bosch and plug and play. That was the best price I could find .

POST 9Original post

Ecs has the up stream for $50 the down stream I pickup on eBay for $60 today

POST 10 / ORIGINAL POSTEROriginal post

Quotes source post: 18035988

Oh well ......... Congrats on the price score 😊

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