Strange TRD pistons 4a-ge
01-08-2008, 10:54 AM
Post: #1
Strange TRD pistons 4a-ge
Hi
I bought these unused 81,15mm oversize, trd (Mahle) pistons for the 4age,
but the seller said that they were for a special setup with longer connecting rods from an other toyta engine or something, he didn't know exactly either.
so if anyone knows better please help me.
The piston rings are also missing Thumbs up!

same shit in finnish:
Ostin tuossa käyttämättömät TRD (Mahle) männät 4age koneeseen mutta niihin pitäs kuulema olla vähän pitemmät kiertokanget jotka on kuulema jostain toisesta toyota moottorista, tietäiskö kukaan missä koneessa olis semmoset? ja mitkä männänrenkaat sopii?

[Image: AEU86 AE86 - Strange TRD pistons 4a-ge]

[Image: AEU86 AE86 - Strange TRD pistons 4a-ge]

[Image: AEU86 AE86 - Strange TRD pistons 4a-ge]

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01-08-2008, 12:55 PM
Post: #2
Strange TRD pistons 4a-ge
You got some part numbers?

Speed Industries
Hurdnerwaeldlistr. 73
8808 Pfaeffikon
Switzerland
e-mail: [email protected]
phone: +4155 420 15 69
page: http://www.speed-industries.ch
MSN: [email protected]

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01-08-2008, 11:51 PM
Post: #3
Strange TRD pistons 4a-ge
speed-inc Wrote:You got some part numbers?


S.K. told me that it might be: 13102-AE852

http://trdparts.jp/english/parts_engine-4a-g16.html

280z '75
audi S4 B5 '99
KE25 '71
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04-02-2008, 11:24 AM
Post: #4
Strange TRD pistons 4a-ge
That's not the correct part number...

TRD site states that part number is from a piston with three rings.

Those pistons only hold 2 rings...

It would be nice to know which engine they are for though...

Great quality pistons!!
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04-02-2008, 02:41 PM
Post: #5
Strange TRD pistons 4a-ge
apardal Wrote:That's not the correct part number...

TRD site states that part number is from a piston with three rings.

Those pistons only hold 2 rings...

It would be nice to know which engine they are for though...

Great quality pistons!!


Yeah thats what I think also.

To fit these pistons in the early bluetop you need 5.5mm longer conrods, or you need to cut 5,5mm of the engine block Smile

stock conrod: 122mm
stock piston (from pin center to top): 30mm
total: 152mm

you would need:
conrod: 127.5mm pin 18mm
these pistons: 24,5mm
total: 152mm
or chop 5,5mm out of the block.

280z '75
audi S4 B5 '99
KE25 '71
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04-03-2008, 04:02 AM
Post: #6
Strange TRD pistons 4a-ge
If those are what I am thinking about, they are Formula Atlantic Mahle pistons. They might be a 19 mm pin.

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04-03-2008, 11:24 AM
Post: #7
Strange TRD pistons 4a-ge
I think that you will find these are made by Mahle for TRD the part number is 13101-AE801 , these are in my TRD N2 manual as forged pistons and the cast ones (which I have in my Atlantic engine) part number is 13101-AE811

Hope this helps
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04-03-2008, 11:47 AM
Post: #8
Strange TRD pistons 4a-ge
nzae86 Wrote:I think that you will find these are made buy Mahle for TRD the part number is 13101-AE801 , these are in my TRD N2 manual as forged pistons and the cast ones (which I have in my Atlantic engine) part number is 13101-AE811

Hope this helps

WOW, thats what they really are thanks a lot. Respect!
in this picture of the box you can see the end of the part number 13101-ae801.
[Image: AEU86 AE86 - Strange TRD pistons 4a-ge]

so I guess I have no use for these formula atlantic pistons Big Grin
they are for sale.

Thx

280z '75
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04-03-2008, 11:52 AM
Post: #9
Strange TRD pistons 4a-ge
nzae86, shouldn't those pistons have three rings?

The PN in the package might have been scratched for a reason...

Best regards
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04-03-2008, 12:03 PM
Post: #10
Strange TRD pistons 4a-ge
No the picture that I have here shows only 2 rings , I have some of 3 ring Mahle pistons on the shelf as well , but sadly only 3 of them!
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