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996.2 C4S upper idler pulley - which option

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9 captured repliesDiscussion pagination complete · Source accounts, not a confirmed diagnosis
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YOUR RESEARCH996.2 C4S upper idler pulley - which option

Leading reported evidence

Replace with high quality bearings

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Suggestion

If you have steel pulleys you could replace with high quality bearings

996.2 C4S upper idler pulley - which option
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Leading evidence: 'Replace with high quality bearings' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Replace with high quality bearings' (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 · 9 captured posts examined · 0 partial discussions

Compare 3 other evidence results

Set turbo and the oem prices were horrendous

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No successful repair reported for this finding.

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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
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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.

Suggestion

For £100, I'd go OEM - but I needed a set for my turbo and the OEM prices were horrendous!

996.2 C4S upper idler pulley - which option

Test each of the pulleys whilst i was there

Suggestion or failed attempt

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 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

I had my auxiliary belt off the other day to do some work and decided to test each of the pulleys whilst I was there.

996.2 C4S upper idler pulley - which option

Use febi/bilstein or ina stuff

Suggestion or failed attempt

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 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

I'd be happy to use Febi/Bilstein or INA stuff.

996.2 C4S upper idler pulley - which option
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.

Replace with high quality bearings

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

If you have steel pulleys you could replace with high quality bearings

996.2 C4S upper idler pulley - which option

Set turbo and the oem prices were horrendous

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

For £100, I'd go OEM - but I needed a set for my turbo and the OEM prices were horrendous!

996.2 C4S upper idler pulley - which option

Test each of the pulleys whilst i was there

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

I had my auxiliary belt off the other day to do some work and decided to test each of the pulleys whilst I was there.

996.2 C4S upper idler pulley - which option

Use febi/bilstein or ina stuff

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

I'd be happy to use Febi/Bilstein or INA stuff.

996.2 C4S upper idler pulley - which option
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.

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

  • 911uk: 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: 20261026T122219Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources

POST 1 / ORIGINAL POSTEROriginal post

Afternoon all! I had my auxiliary belt off the other day to do some work and decided to test each of the pulleys whilst I was there. Most of them spun nicely, but my upper idler pulley was decidedly 'crunchy'. Mine's a manual C4S, so part number is 99710211800. My question is, do I stick with OEM for about £100+ or go for Design 911 aftermarket one for about half the price? Anyone have any experience of aftermarket pulleys? Dedicated to your Porsche needs Design 911 supply car parts, spares and accessories, to both retail and to the trade. Our car product and accessory range includes brakes, exhausts, tyres, wheels and panels and interiors. #Porsche #ServiceCentre #Essex www.design911.co.uk

POST 2Original post

For £100, I'd go OEM - but I needed a set for my turbo and the OEM prices were horrendous! I mixed and matched to save a few bob

POST 3Original post

Aftermarket is fine for this application although I've not been super impressed with D911's 'OE match' - I assumed it would be branded but it appears to be specific to D911. I'd be happy to use Febi/Bilstein or INA stuff. Idler pulleys are pretty standard bits.

POST 4Original post

You have 3 options that I can see, Aftermarket at £40+, OEM Sebro at £64+ or Genuine Porsche at £71+ (nothing at £100)

POST 5Original post

Why not a Meyle one for 52-10% discount from HCP?

POST 6Original post

Quotes source post: 2815402

OEMatch is made in China by various suppliers to D911's specification I believe

POST 7Original post

If Sebro is OEM I'd go with that, they last for years don't they.

POST 8Original post

Quotes source post: 2815308

If you have steel pulleys you could replace with high quality bearings

POST 9 / ORIGINAL POSTEROriginal post

Thanks for the responses everyone! I've just ordered a Sebro one.

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