YOUR RESEARCHReplacement engine numbers 1998 Boxster - 986 Forum - The Community for Porsche Boxster & Cayman Owners
1 matching discussions were examined; no attributable action/outcome evidence was detected. No consensus or repair conclusion is claimed.
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1 matching discussions · 10 captured posts examined · 0 partial discussions
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10 eligible posts · 0 unverified posts · 1 discussions match the subject in their title or opening post.
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Generation: 20261027T025149Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources
i was performing some maintenance on my 98 boxster last weekend and noticed my engine stamp had an unusual looking "R" on the end of the series. I am the fourth owner of this boxster but the previous owners failed to include maintenance records. Does the "R" stand for replacement ?
I believe that is the part number for the valve cover. Your engine number will look like this.
Quotes source post: 422153
No, you are looking at a part number, not the engine number. And if it were a factory replacement engine, it would contain the letters "AT".
Quotes source post: 422154
The engine stamp serial # is viewed from top or bottom or bottom of engine. Near tranny or starter as in your picture ?
Quotes source post: 422162
It is on the oil sump rail.
In case, like me he's not sure what an 'Oil Sump Rail' is: That's the bottom of the engine, right side. It is just forward of where the O2 sensor sticks out from the exhaust.
Quotes source post: 422166
And, it will most likely gunked over. Look for a flat spot and rub there.
Got it, thank you !😊
It can also have an "X" in the number to identify a reman engine.
The "R" stands for "Race" and should be always painted red.
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