they should be used during installation for optimal performance and longevity
Can I run the engine dry after installing a new impeller
Position the new restrictor gasket correctly onto the manifold
Place a rag or container under the old fuel pump to catch any spilled fuel
and other required components for a standard rebuild
Carburetor – Fits Mercury Mariner 10HP 15HP 20HP 4-stroke (Replaces 853720T14, 853720T15, 853720T19, 853720T21, 8M0109535) 135-300HP they should be used duringProduct Details This Carburetor Fits Mercury Mariner 10HP 15HP 20HP 4 stroke is designed for Mercury Mariner outboard engines rated 15HP20HP with 4 stroke, 2 cylinder configuration. Engineered to deliver reliable fuel metering for remote control models with serial numbers 0R235168 through 0R833819 (carburetor serial 0R686020 and below). Direct replacement for OEM part numbers 853720T14, 853720T15, 853720T19, 853720T21, and 8M0109535. Complete