MerCruiser 1351-5203A1 Rochester Carburetor 2BBL Carb 140hp 3.0L 4cyl 1972-1978

Move your mouse over image or click to enlarge

Item Details

MerCruiser 1351-5203A1 / 1351-5203 Rochester 2 Jet 2BBL Carburetor Assembly
- Bowl Number 7043184
GM Rochester 2-Jet 2-barrel carburetor assembly Generally found on MerCruiser GM 3.0L 140hp 4cyl engines 1972-1978 (Serial Number 3771645 & UP Specifically) which is basically 1973-1978
Not Compatible with applications that used MerCarb
Used for MerCruiser Chevy GM 140hp 3.0L applications from 1979-1982 That used ROCHESTER carburetors
- The MERCARB carburetors were used in the mid-late 80s and will are not interchangeable with Rochester carburetors as the mounting plate bolt pattern is different.
Visually it looks in great shape, but may need to be cleaned or gone through and maybe rebuilt before installation.
- This would be an item I would recommend to just try and install it first, and if you are still having issues, just rebuild it with a fresh kit. We have Included Sierra Rebuild Kit 17-7746 for this reason.
Other details to take note of...
- This used an engine warm up tube rather than an electric choke found on newer models.
- Throttle Linkage plate type (yours should look the same)
- Fuel input fitting / orientation
Freshwater used part

Purchase with confidence!