PART NUMBERS:
• Yamaha: 6AW-11417-40-00 / 6AW114174000
SPECIFICATIONS:
• Type: Lower Main Plain Bearing (Crankshaft 2)
• Color Code: Blue (Selective Fit)
• Engine: V8 4-Stroke 5.3L
• Models: Yamaha F300 / F350
APPLICATIONS:
• Yamaha F300 V8 5.3L 4-Stroke 300 HP (2007-2019)
• Yamaha F350 V8 5.3L 4-Stroke 350 HP (2007-2019)
PRODUCT DETAILS:
Direct replacement blue-coded lower main plain bearing for Yamaha F300 and F350 V8 5.3-liter 4-stroke outboard engines produced between 2007 and 2019. Yamaha's color-coded bearing system uses different colored bearings to achieve precise crankshaft-to-bearing clearances during engine assembly, and the blue bearing is one specific size within this selective fit system. This plain bearing sits at the lower main crankshaft position (crankshaft 2) and provides support through a pressurized oil film rather than rolling elements like a ball or roller bearing. The Yamaha F300 produces 300 horsepower and the F350 produces 350 horsepower from the same 5.3-liter V8 block, with both models sharing the same crankshaft bearing configuration. Proper main bearing selection using the correct color code is essential for achieving the specified oil clearance that allows the pressurized lubrication system to maintain an adequate oil film between the bearing and crankshaft. A failing main bearing typically presents as low oil pressure, engine noise at certain RPM ranges, or visible crankshaft journal wear during engine inspection. Always verify the blue color code matches your crankshaft journal marking before installation. Confirm your model and part number before purchasing to verify proper fitment for your Yamaha V8 outboard.
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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