Mercury Serpentine Belt 8M0218433

Mercury Serpentine Belt 8M0218433 is sold under the Quicksilver brand, Mercury Marine's line of replacement parts and accessories. This alternator drive belt is designed for select 3.4L V6 and 4.6L V8 FourStroke outboards and is reinforced for durability and long service life. Mercury lists it for 175-300HP and 450R applications.

Compatible with the following:

• Mercury 175-225HP 3.4L V6 FourStroke
• Mercury 175HP Pro XS 3.4L V6 FourStroke
• Mercury 200-300HP Pro XS 4.6L V8 FourStroke
• Mercury 250-300HP 4.6L V8 FourStroke
• Mercury 250-300HP 4.6L V8 Verado
• Mercury Racing 250R and 300R
• Mercury Racing 450R

The serpentine belt drives the alternator on compatible engines, allowing the charging system to maintain battery and electrical-system power while the engine is running. Periodic inspection and replacement of a worn, cracked, or damaged belt helps maintain dependable charging-system operation.

Supersedes/Replaces: Mercury part number 8M0142251.

To Confirm Compatibility: Contact our team with your engine serial number at (727) 596-5929 before ordering.