2003 2.5 Pistons

nitro1956 · 11-22-2009, 12:17 PM

I have a 2003 Outback with a regular 2.5 in it. Runs great. But it has the annoying piston slap.
I've seen a number ot references to the effect that piston slap can go on for many many miles with no detrimental effect. But still I want to get rid of it....by replacing the offending piston.

Before I start tearing into the engine.....I want to know what factory ( SOA ) pistons are available.
I've come across references so far to these PNs:
12006AC070, 12006AC080
12006AC090, 12006AC100
12006AC920, 12006AC930

Are these legitimate PNs ? And are there yet other pistons available from SOA ?
What are the dimensions ( diameter ) of each piston...both parallel to the wrist pin and also perpendictular to the wrist pin ?

Nitro1956

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SpeedmanRC · 11-22-2009, 08:43 PM

well I haven't looked in to the EJ other then when I redid my head gaskets. but I thought there is a spot on the block telling you what number bearings and/or pistons are in it.

cause I know Nissan dose that (i'm a tech at a Nissan dealer) and thats so the hole block can be used even if it needs one different bearing and such.

you would have to decode your block and use those numbers to buy new pistons.

11-22-2009, 12:17 PM	#1
nitro1956 Scooby Newbie Member#: 230682 Join Date: Nov 2009	2003 2.5 Pistons I have a 2003 Outback with a regular 2.5 in it. Runs great. But it has the annoying piston slap. I've seen a number ot references to the effect that piston slap can go on for many many miles with no detrimental effect. But still I want to get rid of it....by replacing the offending piston. Before I start tearing into the engine.....I want to know what factory ( SOA ) pistons are available. I've come across references so far to these PNs: 12006AC070, 12006AC080 12006AC090, 12006AC100 12006AC920, 12006AC930 Are these legitimate PNs ? And are there yet other pistons available from SOA ? What are the dimensions ( diameter ) of each piston...both parallel to the wrist pin and also perpendictular to the wrist pin ? Nitro1956 * Registered users of the site do not see these ads.

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11-22-2009, 08:43 PM	#2
SpeedmanRC Scooby Newbie Member#: 230758 Join Date: Nov 2009 Location: Janesville, WI Vehicle: 2000 Legacy Wagon Timberland Green	well I haven't looked in to the EJ other then when I redid my head gaskets. but I thought there is a spot on the block telling you what number bearings and/or pistons are in it. cause I know Nissan dose that (i'm a tech at a Nissan dealer) and thats so the hole block can be used even if it needs one different bearing and such. you would have to decode your block and use those numbers to buy new pistons.