MAHLE Engine Piston P/N:081 PI 00104 000
MAHLE 081 15 02 engine piston for the 1987-1993 BMW 325i 6-cylinder 2.5L and other vehicles seals the combustion chamber and passes combustion force to the connecting rod. It is made to OE quality.
A worn piston can show up as oil consumption, blue exhaust smoke or a knock from the engine. These signs alone do not prove the piston is the problem; worn valve stem seals can also burn oil, and a shop can run a compression or leak-down test.
It fits the 1987-1993 BMW 325i 6-cylinder 2.5L and the 1989-1990 BMW 525i 6-cylinder 2.5L.
One engine piston. The quantity per application is 1.
Does the MAHLE 081 15 02 piston fit the 1989-1990 BMW 525i 6-cylinder 2.5L?
Yes. MAHLE 081 15 02 fits the 1989-1990 BMW 525i 6-cylinder 2.5L, and also the 1987-1993 BMW 325i 6-cylinder 2.5L.
Is the MAHLE 081 15 02 sold as one piston or a full set?
MAHLE 081 15 02 is a single engine piston, not a set. The quantity per application is 1.
Where is this MAHLE engine piston made?
The country of origin for this engine piston is Germany.
What are compensated ring grooves on this MAHLE piston?
They are designed to give the piston rings proper loading and oil control. The expansion controlled design allows small fitting clearances, which reduce engine noise, wear and emissions.
How can I tell if an engine piston like this one is worn?
Oil consumption, blue exhaust smoke or an engine knock can go with piston wear. A shop can confirm it with a compression or leak-down test.
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WARNING: These products can expose you to chemicals including lead and phthalates, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.