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Upper Main Bearing Mercruiser 31-16756A4 

# 525-31-16756A4
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Upper Main Bearing Mercruiser 31-16756A4

O.D. 2.318"   I.D. 1-3/8"

Supersedes: 31-16756A2

Fits:
135 HP 1991 serial number C239533-D000750
135 HP 2.0L 1992-96 serial number D08200 & up
135-175 HP 2.5L DFI serial number 0G590000-OT178499
135-175 HP 2.5L DFI serial number OT178500 & up
150 HP 2.0L 1991 serial number C239553-D000750
150 HP 2.0L 1992-97 serial number D082000 & up
XR4 1991 serial number C239553 & up
150 / XR6 2.5L 1992-up serial number D082000 & up
150 HP 2.5L DFI serial number OT178500 & up
175 HP 2.5L 1990-91 serial number C221500-D000750
175 HP 2.5L 1992-97 serial number D082000 & up
175 HP 2.5L DFI serial number OT17500 & up
200 HP 2.5L 1990-91 serial number C291519-C291520
200 HP 2.5L 1992-up serial number D082000 & up

Supercedes: 31-16756A2

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NOTICE: Any images shown are representational ONLY and do not necessarily depict the actual part or included items in a particular part or kit. Mercury has been known to remove items depicted in product images such as screws or gaskets from kits they make without notification. For any product content, fitment or application questions on this part please call Mercury Product Support at 920-929-5040.
MSRP: $69.75
Your Price: $69.75
 You Save: 0% off MSRP!

NOTE: This Item is a Non-Stocked, Special Order, OEM Mercury Part.
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Additonal Info On This Product:

Applications Where This Item Is Used:

210 CARB M2 JET DRIVE - 210 CARB M2 JET DRIVE (PUMP)240 EFI M2 JET DRIVE - 240 EFI M2 JET DRIVE (PUMP)
200 DFI M2 JET DRIVE - 200 DFI M2 JET DRIVE (POWERHEAD)150 / 175 / 200 XRI - V-150 (MAG/EFI)
135/150/175/200/XR6/MAGNUM III - V-175135/150/175/200/XR6/MAGNUM III - MAGNUM III
200 EFI PROMAX/SUPERMAGNUM - 200 EFI PRO MAX/SUPER MAG240 EFI M2 JET DRIVE - 240 EFI M2 JET DRIVE (POWERHEAD)
135/150/175/200/XR6/MAGNUM III - 140 JET135/150/175/200 XR6 MAGNUM III 105-140 JET - XR-6
200 DFI JET DRIVE - 200 DFI M2 JET DRIVE (PUMP)135/150/175/200/XR6/MAGNUM III - XR-6
135/140/150/200/XR6/MAGNUM III/140JET (2.5L)(CARB) - V-135135/150/175/200 XR6/MAGNUM III/140 JET (CARB) - MAGNUM III
XR-2 MAGNUM - MERC/MAR XR2/MAGNUM200XS DFI (2.5L) ROS - 200XS DFI (2.5L) ROS
135/140/150/200/XR6/MAGNUM III/140JET (2.5L)(CARB) - V-140 (INTERNATIONAL)175 XR2 JET DRIVE - 175XR2 JET DRIVE (PUMP)
135/140/150/200/XR6/MAGNUM III/140JET (2.5L)(CARB) - V-200135/140/150/200/XR6/MAGNUM III/140JET (2.5L)(CARB) - XR-6
225 EFI PROMAX/SUPERMAGNUM - 225 EFI PRO MAX/SUPER MAG135/150/175 DFI (2.5L) - V-175 DFI (2.5L)
210 CARB JET DRIVE - 210 CARB JET DRIVE (PUMP)135/150/175/200 XR6/MAGNUM III/140 JET (CARB) - V-150
2.5XS DFI (2.5L) - 2.5XS 2.5L DFI150/200 EFI PROMAX/SUPERMAGNUM - 150/200 EFI PRO MAX/SUPER MAG
200 DFI JET DRIVE - 200 DFI JET DRIVE (POWERHEAD)SST 120 S2000 CARB - SST 120
175 PROXS (2.5L) - 175 PROXS (2.5L)240 EFI AND 240 EFI M2 JET DRIVE - 240 EFI JET DRIVE (POWERHEAD)
200 DFI JET DRIVE - 200 DFI JET DRIVE (PUMP)210 CARB M2 JET DRIVE - 210 CARB M2 JET DRIVE (POWERHEAD)
225X EFI PROMAX - 225X EFI PROMAX135/150/175/200 XR6 MAGNUM III 105-140 JET - MAGNUM III
135/150/175/200 XR6 MAGNUM III 105-140 JET - V-175135/150/175/200 XR6/MAGNUM III/140 JET (CARB) - XR-6
135/150/175/200 XR6/MAGNUM III/140 JET (CARB) - V-200175XR2 JET DRIVE - 175XR2 JET DRIVE (PUMP)
150/200 EFI (2.5L) - V-150 EFI (2.5L)135/150/175/200 XR6 MAGNUM III 105-140 JET - V-200
150/175/200 EFI - V-150 (EFI)150/175/200 EFI (2.5L) - V-150 EFI (2.5L)
135/150/175/200 XR6/MAGNUM III/140 JET (CARB) - 140 JET135/150/175/200/XR6/MAGNUM III - 105 JET
135/140/150/200/XR6/MAGNUM III/140JET (2.5L)(CARB) - V-150135/140/150/200/XR6/MAGNUM III/140JET (2.5L)(CARB) - MAGNUM III
135/150/175/200/XR6/MAGNUM III - V-150200 DFI M2 JET DRIVE - 200 DFI M2 JET DRIVE (PUMP)
225 (EFI) PRO-MAX/SUPER MAGNUM - 225 EFI PRO MAX/SUPER MAG150 / 175 / 200 XRI - V-150XRI (EFI)
200XS SST - 200XS SST135/150/175/200 XR6 MAGNUM III 105-140 JET - 140 JET
240 EFI JET DRIVE - 240 EFI JET DRIVE (POWERHEAD)135/140/150/200/XR6/MAGNUM III/140JET (2.5L)(CARB) - 140 JET
200XS DFI (2.5L) - 200XS DFI (2.5L)210 CARB JET DRIVE - 210 CARB JET DRIVE (POWERHEAD)
240 EFI JET DRIVE - 240 EFI JET DRIVE (PUMP)135/150/175/200 XR6/MAGNUM III/140 JET (CARB) - V-175
135/150/175/200 XR6 MAGNUM III 105-140 JET - V-150150/175/200 EFI - V-175 (EFI)
150 PRO XS (2.5L) - 150 Pro XS (2.5L)115/135/150 DFI (2.5L) - V-135 DFI (2.5L)
150 / 175 / 200 XRI - V-175 (SKI)135/150/175/200 XR6 MAGNUM III 105-140 JET - 105 JET
150/200 PRO-MAX/SUPER MAGNUM (EFI) - 150 EFI PRO MAX/SUPER MAGSST 120 S2000 CARB - S2000
135/150/175 DFI (2.5L) - 110 Jet (2.5L)135/150 DFI (2.5L) - V-135 DFI (2.5L)
240 EFI AND 240 EFI M2 JET DRIVE - 240 EFI M2 JET DRIVE (PUMP)240 EFI AND 240 EFI M2 JET DRIVE - 240 EFI M2 JET DRIVE (PUMP)
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