Quicksilver 21-878105-1 Check Valve

Quicksilver 21-878105-1 Check Valve

Quicksilver Inline Check Valve 8781051 is a precision-engineered fuel system component designed for select Mercury and Mariner 2-stroke 105–275HP outboards, including DFI, EFI, Jet, 3.0L carbureted engines, and the 175HP XR2 JetDrive-SportJet. This inline check valve ensures proper fuel flow while preventing backflow, helping maintain consistent engine performance and protecting your fuel system from potential damage.

Manufactured to OEM specifications, this check valve provides reliable, long-lasting performance and is easy to install with common shop tools. Always consult your owner’s manual, parts listing, or service manual to confirm exact fitment before installation.

Features:

• Inline check valve for select Mercury and Mariner 105–275HP 2-stroke outboards
• Compatible with DFI, EFI, Jet, 3.0L carbureted engines, and 175HP XR2 JetDrive-SportJet
• Prevents fuel backflow for consistent engine performance
• Easy installation with common shop tools
• Manufactured to Mercury Marine OEM specifications
• See your owner’s manual or service documentation for exact fitment

Special Order Item.

California Residents: WARNING Cancer and Reproductive Harm - P65Warnings.ca.gov