EARLY BIRD SPECIAL Save 5% on DrShrink Shrink Wrap Rolls! Code "EarlyRoll" Ends 9/30

Welcome to PartsDuck, the customer-first boat parts store.

MERCURY/QUICKSILVER  |  SKU: 710-25-818573
Sale

OEM Quicksilver 818573 Cylinder Bore O-Ring for Mercury and Mariner 3.0L

Sale price $14.78 Regular price $16.99

🛡️ PARTSDUCK Promise - Best price, great support & more

More than just a price match! Best price, fast shipping, great stock, real support. More Here

Free Shipping Over $99

In stock items ship same or next business day from the closest of our 20+ warehouses with stock. Economy Shipping is free over $99.

Phone Support (856) 666-7986

Call us with questions 9-5 Monday - Friday EST.

(856) 666-7986

No Fee Returns for 30 Days

No restocking fees on most items, full Return Policy

Description

Quicksilver 818573 cylinder bore o-ring is an OEM service part for selected Mercury and Mariner 3.0L engines.

Verified application examples

  • Cylinder bore sealing O-ring, distinct from the outer cylinder-head seal.
  • Catalog examples include V200 DFI 3.0L, USA 0G386496–0T178499; V225 DFI 3.0L, 0G590000–0T178499; and V225/V250 EFI 3.0L, 0G129222–0T408999.
  • Replacement cylinder heads or powerheads can require a different bore seal. Confirm the installed head design as well as the engine serial number.

Manufacturer part number: 818573

Match the engine serial number and original part number. These examples do not represent universal fitment across the listed horsepower classes.