Cylinder Sleeve O-Ring Compatible With 1994-2001 Mercury Mariner V6 3.0L 2-Stroke Optimax Efi

OEM PART NUMBERS:
• Mercury/Mariner: 25-818574 / 818574
• Aftermarket: 505-50

SPECIFICATIONS:
• Engine: V6 3.0L 2-Stroke (Carb, EFI, DFI, OptiMax)
• HP Range: 200HP, 225HP, 250HP, 275HP, 300HP
• Bore (O-Ring size): 3.2"
• Quantity Required: 3 per cylinder head / 6 per complete engine
• Serial Range: Early production (see application list for specific ranges)
• Superseded by 878453 at S/N 0T409000; by 884391 at S/N 0T599000
• Condition: New

APPLICATIONS SUMMARY:
• Mercury/Mariner V6 3.0L 2-Stroke 200-300HP — early serial production

PRODUCT NOTICE:
As a parts distributor we mostly sell aftermarket parts (any OEM parts would be noted as such). Aftermarket parts are not sourced from the original vehicle or equipment manufacturer, but are designed to function the same as - if not better than - the original. All parts sold are new.

WARNING - This product may expose you to chemicals which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov