REPLACES PART NUMBERS:
• 31-43012A04
• 31-43012A1
• 31-844338A01
• 31-892287A01
• 816567A1
• 859469A1
ITEM SPECIFICATIONS:
• Component: Lower Rod Bearing (Caged Needle)
• Application: Connecting Rod Lower End
• Engine Type: 2-Stroke Outboard (3-Cyl, 4-Cyl, V6)
• Brands: Mercury, Mariner
• HP Range: 65HP-300HP
COMPATIBLE MODELS:
Mercury: 65HP-300HP 2-Stroke (3-Cyl, 4-Cyl, V6 3.0L) 1985-2018
Mariner: All applicable models by part number
PRODUCT DETAILS:
Direct replacement lower rod bearing for connecting rod service in Mercury and Mariner 2-stroke outboard engines from 65HP through 300HP covering model years 1985 through 2018. This caged needle bearing replaces the original connecting rod lower bearing in Mercury 3-cylinder, 4-cylinder, and V6 3.0-liter outboard engines across looper, Optimax, EFI, and Pro XS configurations. Manufactured to match or exceed specifications for proper fit and durability in the demanding marine outboard environment where saltwater and high RPM create extreme bearing loads. The bearing cage maintains proper needle roller spacing and alignment, ensuring consistent load distribution across the crankshaft journal during engine operation. A worn or damaged connecting rod bearing can cause excessive crankshaft play, knocking, and eventual engine failure if not replaced during rebuild. Confirm your engine model and part number before purchasing to verify proper 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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