Replacement O-ring for Yamaha outboard lower units, used to seal the drive shaft within the gearcase assembly.

Manufactured to OEM specification, this O-ring ensures proper sealing, helping prevent water ingress and maintaining the integrity of the lower unit.

Replaces Part Number

93210-41042

Fitment

Yamaha Outboards (6H4 / 6H5 / 6E9 Series)

• 40 HP – Models with 6E9 / 6H4 serial ranges
• 50 HP – Models with 6H5 series
• 55 HP – Selected models

Typical Year Range:
• 40HP – 1984–1993
• 50HP – 1984–1993
• 55HP – 1989–1993

IMPORTANT

This O-ring corresponds to No. 21 on the Yamaha lower unit diagram (drive shaft assembly).

Please confirm compatibility with your engine model and serial number before purchase.

Details

• Product: O-Ring
• Type: Replacement part
• Application: Drive shaft seal (lower unit)
• Engine Type: Yamaha Outboards
• Direct replacement – no modification required

Why Buy from SSI Marine

Workshop-tested aftermarket & OEM-spec parts
Fast UK dispatch (same-day before 1 PM Mon–Fri)
Tracked 24-hour UK delivery
UK stock – collection available from Leigh (Manchester)
Technical support available

Buyer Responsibility

Please confirm compatibility with your engine model and serial number before purchase.
If unsure, contact us — our technical team will be happy to help.

40-55HP Yamaha Outboard Drive Shaft O-Ring 93210-41042 – Replaces OEM Seal