New Marine U-Joint Propshaft Bearing O-Ring Compatible With 1995-2008 Mercury 4-Stroke 45Hp-90Hp

U-JOINT / PROPSHAFT BEARING CARRIER O-RING — MERCURY 4-STROKE OUTBOARDS:

MERCURY 4-CYL 4-STROKE STANDARD OUTBOARDS:
• Mercury 45 HP 4-Cyl 4-Stroke Outboard (1995-2000)
• Mercury 50 HP 4-Cyl 4-Stroke Outboard (1995-2002)
• Mercury 60 HP 4-Cyl 4-Stroke Outboard (2001-2002)
• Mercury 75 HP 4-Cyl 4-Stroke Outboard (2000-2005)
• Mercury 80 HP 4-Cyl 4-Stroke Outboard (2006-2008)
• Mercury 90 HP 4-Cyl 4-Stroke Outboard (2000-2005)

MERCURY 4-CYL 4-STROKE EFI OUTBOARDS:
• Mercury 40 HP 4-Cyl 4-Stroke EFI Outboard (2002-2007)
• Mercury 50 HP 4-Cyl 4-Stroke EFI Outboard (2002-2007)
• Mercury 60 HP 4-Cyl 4-Stroke EFI Outboard (2002-2008)
• Mercury 75 HP 4-Cyl 4-Stroke EFI Outboard (2006-2008)
• Mercury 90 HP 4-Cyl 4-Stroke EFI Outboard (2006-2008)

MERCURY 4-CYL 4-STROKE BIGFOOT AND JET VARIANTS:
• Mercury Bigfoot 50 HP 4-Cyl 4-Stroke Outboard (1995-2000)
• Mercury Jet 80 HP 4-Cyl 4-Stroke Outboard (1999-2005)

MERCRUISER STERNDRIVE U-JOINT APPLICATIONS:
Per Mercury Marine documentation, OEM 25-861844 is also specified for MerCruiser Bravo sterndrive u-joint seal retainer applications. Additionally fits Mercury 75-125 HP DFI propshaft bearing carrier locations. Verify by part number from your service manual.

FUNCTIONAL APPLICATION — PROPSHAFT BEARING / U-JOINT SEAL:
Per Mercury Marine: this O-ring serves the MerCruiser Bravo u-joint seal retainer position, the propeller shaft bearing carrier on Mercury 4-stroke 40-60 HP EFI outboards, and the propshaft bearing carrier on Mercury 75-125 HP DFI outboards. Mercury Marine specifies: replace these O-rings when installing or servicing u-joints or propeller shaft bearing carriers. Immediately replace damaged or worn O-rings.

OEM SUPERSESSION CHAIN:
• Original: 25-861844 / 861844
• Supersession 1: 25-97386 / 97386
• Current Supersession: 8M0214974
All three numbers reference the same functional O-ring per Mercury Marine.

O-RING SPECIFICATIONS:
• Material: Nitrile (NBR) Standard Marine Grade Rubber
• Color: Black
• Type: U-Joint Seal / Propshaft Bearing Carrier O-Ring
• Function: Lower Unit / Sterndrive Sealing

SERVICE WHEN:
• Servicing or Replacing U-Joints (Sterndrive)
• Servicing Propeller Shaft Bearing Carrier
• Lower Unit Removal / Service
• Routine Lower Unit Maintenance
• Annual Service on Mercury 4-Stroke EFI/DFI Outboards
• MerCruiser Bravo Sterndrive U-Joint Seal Service

FITMENT NOTE:
This is an OEM-spec replacement O-ring for Mercury part 25-861844 (current supersession 8M0214974). ALWAYS verify the OEM part number from your service manual or Mercury parts diagram before ordering. This O-ring is specified for u-joint seal retainer and propshaft bearing carrier service across Mercury 4-stroke outboards 40-90 HP (EFI, standard, Bigfoot, Jet variants from 1995-2008) and MerCruiser Bravo sterndrives. Confirm 25-861844 is specified for your particular service location before ordering.