MAHLE Engine Piston Ring Set 51489CP
MAHLE Engine Piston Ring Set 51489CP

MAHLE Engine Piston Ring Set P/N:51489CP

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$65.99
MPN: 51489CP
Item Package Quantity: 1
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MAHLE Engine Piston Ring Set P/N:51489CP
MAHLE Engine Piston Ring Set P/N:51489CP
$65.99

Seal the combustion chamber, control the oil film on the cylinder wall, and help transfer piston heat with the MAHLE Engine Piston Ring Set 51489CP. It installs as a direct-fit replacement for the 1989-1993 Mazda B2600, 1989-1994 Mazda MPV, 1985-1995 Toyota 4Runner, 1985 Toyota Celica, 1985-1995 Toyota Pickup, and 1988 Toyota Van Wagon.

  • Compression sealing: the compression rings seal combustion gases above the piston to maintain cylinder pressure.
  • Oil control: the oil ring meters the oil film on the cylinder wall and helps return excess oil to the crankcase.
  • Rebuild-ready: a piston ring set intended for a ring job or engine rebuild on the listed applications.

Piston rings ride in the piston grooves and run against the cylinder bore, so they wear over time. Signs the rings may need replacing include blue exhaust smoke, elevated oil consumption, and excessive crankcase blow-by. Diagnose the cause first; if worn rings are behind those symptoms, this set replaces them during the rebuild. Confirm the correct bore size and honing procedure using the vehicle service information before installation.

Interchange: 4216 · E510X
Manufacturer part number 51489CP

This part cross-references / interchanges with the following part numbers:

4216, E510X

Frequently Asked Questions

What does this piston ring set do?

The compression rings seal combustion gases to maintain cylinder pressure, while the oil ring meters the oil film on the cylinder wall and helps return excess oil to the crankcase.

Which vehicles does the 51489CP fit?

It fits the 1989-1993 Mazda B2600, 1989-1994 Mazda MPV, 1985-1995 Toyota 4Runner, 1985 Toyota Celica, 1985-1995 Toyota Pickup, and 1988 Toyota Van Wagon.

What numbers does this set interchange with?

It cross-references interchange numbers 4216 and E510X. Its own manufacturer part number is MAHLE 51489CP.

What are signs my piston rings may need replacing?

Blue exhaust smoke, higher-than-normal oil consumption, and excessive crankcase blow-by can be signs of worn rings. Diagnose the cause before replacing.

Should I replace piston rings during a rebuild?

Yes—rings are typically renewed as part of a ring job or engine rebuild. Follow the vehicle service information for the correct bore size and honing procedure.

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