PART NUMBERS:
• 31-16756A1 / 3116756A1
• 31-16756A3 / 3116756A3
• 31-16756A6 / 3116756A6
SPECIFICATIONS:
• Component: Center Main Bearing
• Engine: 6-Cyl 2-Stroke 2L/2.4L/2.5L/3L
• Horsepower: 105-240 HP
• Brand: Mercury / Mariner
APPLICATIONS:
• 2L: 135/150 HP (1991-2005)
• 2.4L: 150/175 HP (1990-1999)
• 2.5L: EFI/Optimax/Pro Max/Jet/Sport Jet/XR6/XS 105-240 HP (1991-2014)
• Pro XS 150/175 HP (2008-2018), 3L Optimax 200 HP (2001-2018)
• Applicable Mariner models by part number
PRODUCT DETAILS:
Direct replacement center main bearing for Mercury and Mariner 6-cylinder outboard engines spanning the 2L through 3L displacement range from 1990 through 2018. This bearing fits Mercury's entire lineup of V6 2-stroke outboards including carbureted, EFI fuel injection, Optimax direct injection, Pro Max racing, Pro XS high-performance, and Sport Jet jet drive models. The center main bearing position is critical in a 6-cylinder engine as it provides the primary support point between the upper and lower cylinder banks. Part number 31-16756A6 is the latest revision, superseding the earlier A1 and A3 versions, and this bearing fits applications calling for any of the three part numbers. A failing center main bearing presents as engine noise, vibration, reduced power, or visible crankshaft play during inspection. Manufactured to match specifications for reliable performance in Mercury outboard powerhead applications. Always confirm your model and part number before purchasing to verify fitment.
PRODUCT NOTICE:
As a parts distributor we mostly sell aftermarket parts (any OEM parts would be noted as such). Aftermarket parts are not sourced from the original vehicle or equipment manufacturer, but are designed to function the same as - if not better than - the original. All parts sold are new.
WARNING - This product may expose you to chemicals which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov
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