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Rein CHR0405R (17127540127 equivalent) top radiator hose.
Rein CHR0405R (17127540127 equivalent) top radiator hose.
Rein CHR0405R (17127540127 equivalent) top radiator hose.
Rein CHR0405R (17127540127 equivalent) top radiator hose.

Rein CHR0405R (17127540127 equivalent) top radiator hose.

Rein

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Rein CHR0405R (17127540127 equivalent) top radiator hose for N54 and N55 engines in E8x 1 series, E9x 3 series and E89 Z4 only.

Replace during oil filter housing gasket replacement if swollen or soiled.

The oring inside the coupler often swells after contact with engine oil, making it impossible to refit after repair.