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YOUR RESEARCHSpark Plug Recommendations - 996tt (slight mods) - Page 1 - 911/Carrera GT - PistonHeads UK
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Install some plugs based
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I can't say this is true for the Turbo plugs and the cross reference charts but in one case a Cayman owner went by a cross reference plug chart and selected/bought/installed some plugs based on the chart and the engine ran poorly.
Leading evidence: 'Install some plugs based' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Install some plugs based' (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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Performed · outcome unconfirmed
I can't say this is true for the Turbo plugs and the cross reference charts but in one case a Cayman owner went by a cross reference plug chart and selected/bought/installed some plugs based on the chart and the engine ran poorly.
Replace plug part number and this references a plug
Suggestion or failed attempt
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Suggestion
For various reasons Porsche can change the plug part number and this references a plug with a different number on it.
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
If you do not want to buy your plugs at the dealer parts department try to learn what the latest part number of plug is and then find out what plug this maps too -- brand and plug model/ID number -- and then buy a set wherever you want.
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
I just called GIAC they simply stated we use the stock plugs.
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Install some plugs based
No successful repair reported for this finding.
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Reported fixes
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Discussions that performed work without a confirmed outcome
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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
I can't say this is true for the Turbo plugs and the cross reference charts but in one case a Cayman owner went by a cross reference plug chart and selected/bought/installed some plugs based on the chart and the engine ran poorly.
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 can't say this is true for the Turbo plugs and the cross reference charts but in one case a Cayman owner went by a cross reference plug chart and selected/bought/installed some plugs based on the chart and the engine ran poorly.
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 do not want to buy your plugs at the dealer parts department try to learn what the latest part number of plug is and then find out what plug this maps too -- brand and plug model/ID number -- and then buy a set wherever you want.
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
With a tune you should contact the company offering the tune for plugs recommendation and use those and change them as per the tuner company's schedule.
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.
4 eligible posts · 0 unverified posts · 1 discussions match the subject in their title or opening post.
PistonHeads: 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: 20261027T003124Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources
I have an '02 996tt with about 49k miles. I purchased it about a year or so back and have no idea when the plugs were changed and assume the coils are original.
I will be purchasing a set of coils made by Bosch (0986221016 / 99760210400) I found a deal for $208 shipped (anyone know a better price?).
In regards to the plugs I am getting conflicting info between Bosch 7410 and 7413? Rockauto states 7413 as does Autozone and Amazon. But Pelican shows 7410. Should I be looking at NGK, Denso or others?
The car has a tune from GIAC, aftermarket exhaust and intake (stock Turbos)if that makes a difference...
Thanks
With a tune you should contact the company offering the tune for plugs recommendation and use those and change them as per the tuner company's schedule.
As for a stock Turbo, in the case of my stock '03 Turbo I have the tech install whatever the parts manager shoves across the counter to the tech.
I can't say this is true for the Turbo plugs and the cross reference charts but in one case a Cayman owner went by a cross reference plug chart and selected/bought/installed some plugs based on the chart and the engine ran poorly. When I looked at the plugs referenced by the chart I could see the referenced plugs had recessed center electrodes (!) and pointed this out to the Cayman owner, pasted pics of the right plugs and picture of the cross-referenced plugs. The Cayman owner ended up going with back to a new set of original equipment plugs.
I just called GIAC they simply stated we use the stock plugs.
I am still unclear as to 7410 FR6 vs 7413 FGR6 I am assuming those are both stock equivalent but each site has a different suggestion (obviously not taking into account my stage 1 tune plus intake/exhaust.
magelin said:
I just called GIAC they simply stated we use the stock plugs.
I am still unclear as to 7410 FR6 vs 7413 FGR6 I am assuming those are both stock equivalent but each site has a different suggestion (obviously not taking into account my stage 1 tune plus intake/exhaust.
I give the parts manager the VIN of my car. He looks up the part number for plugs and picks them out of stock and gives them to me, or the tech does this. This is the way I've selected plugs for both my Boxster and my Turbo.
I have compared the old plugs with the new plugs and sometimes they are not the same number on the plug. This doesn't bother me. For various reasons Porsche can change the plug part number and this references a plug with a different number on it. Maybe because the new plug is better, or the old plug has been changed and no longer qualifies for use.
Who knows? I just make it easy on myself and use whatever the parts department manager shoves over the counter when I order plugs for my my cars. I've had a number of sets of plugs in the Boxster -- after 280K miles naturally -- and a few sets of plugs in the Turbo -- plugs should be changed every 24K miles IIRC -- and I've never had a plug problem with either engine.
If you do not want to buy your plugs at the dealer parts department try to learn what the latest part number of plug is and then find out what plug this maps too -- brand and plug model/ID number -- and then buy a set wherever you want. The parts manager may accommodate you in this endeavor.
This is a source reference. Confirm exact model applicability in the original material.
