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Pelican Parts

Location of engine # on 3.4?

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9 captured repliesDiscussion pagination complete · Source accounts, not a confirmed diagnosis
THIS DISCUSSION / SOURCE-DERIVED OVERVIEW

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YOUR RESEARCHLocation of engine # on 3.4?

Leading reported evidence

Replace (it was not

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No successful repair reported for this finding.

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Suggestion · Original poster

I am on a mission to determine whether the engine has been replaced, (it was not under warranty), so I also need to somehow find out what the # would be for an extremely early production '99.

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Location of engine # on 3.4?
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Leading evidence: 'Replace (it was not' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Replace (it was not' (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

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Replace (it was not

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 am on a mission to determine whether the engine has been replaced, (it was not under warranty), so I also need to somehow find out what the # would be for an extremely early production '99.

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Location of engine # on 3.4?
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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.

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

  • Pelican Parts: 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: 20261026T091943Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources

POST 1 / ORIGINAL POSTEROriginal post

Does anyone know where I look for the engine serial# on my '99 996? I am on a mission to determine whether the engine has been replaced, (it was not under warranty), so I also need to somehow find out what the # would be for an extremely early production '99. (Build date 2/98). If my # is not consistent with that, I'll know it's been changed. TIA.

POST 2Original post

Call Laura at Hergesheimer. She'll tell you. Tell her I told you to call her (Scott Romanos) Congrats on the new to you 996. He11 of a car. I've taken mine to the track (Big Willow) four times and have had a blast!

POST 3Original post

hi, i saw your post about you needed to know if your engine was changed or not. Now i have the same problem, i bought a 996 3.4 `99 and the seller told me the engine has been changed for new one, but how can i know it by serial number? regards

POST 4Original post

the engine number should be stamped on the underside of the crankcase

POST 5Original post

Ok, tks , but i want to know how to know with the serial number if the engine has been changed or not, i think if the date of the engine is newer than `99 year then the engine has been changed Tks and regards

POST 6Original post

Post the engine serial number, and I can probably check... -Wayne

POST 7Original post

Hi, I saw 2 numbers, i post both. 996.104.139.1R 3.4L M36/01AT66X67532 Tks a lot,

POST 9Original post

Quotes source post: 5306964

AT in front of the serial number. This means Austauschmotor or exchange motor. You have a factory rebuilt normally aspirated motor for a 1999 (66X) 66Y is 2000 661 through 665 is 2001 through 2005 respectively Last 5 digits are the serial number

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