this shaft seal for Becker U Series pumps. It measures 50 mm outer diameter, 72 mm inner diameter, and 7 mm thick. Made for U4.400, U4.400D, and U4.630D models. This critical part seals the rotating shaft where it enters the pump housing. If this seal fails, oil will leak out and air will leak in. OEM quality direct replacement.
This Shaft Seal having size 50 x 72 x 7 mm is used on Becker brand and U Series Family and Used pump models U4. 400D, U4. 630D, U4. 400.
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