Cylinder Sleeve O-Ring Compatible With Mercury Mariner V6 3.0L Pro Xs 225-300Hp Optimax Efi 2-Stroke

OEM PART NUMBERS:
• Mercury/Mariner: 25-884391 / 884391
• Aftermarket: 505-53

SPECIFICATIONS:
• Engine: V6 3.0L 2-Stroke (EFI, DFI, OptiMax, Pro XS)
• 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: 0T599000 & UP (225/250HP); 0T651945 & UP (300X, 250 XS); 1B104549 & UP (Pro XS)
• Supersedes: 818573 (505-51) and 878453 (505-52)
• Condition: New

APPLICATIONS SUMMARY:
• Mercury/Mariner V6 3.0L 2-Stroke 200-300HP — late-serial production (0T599000+)

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