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OMC Cobra Stern Drive U-Joint Shaft Bearing 83877
OMC Cobra
Outer Carrier 1986-1993
| Quantity | Price |
| 1 | 34.95 |
Pro Marine OMC Cobra U-Joint Shaft Bearing
OMC Cobra Sterndrive U-Joint Shaft Bearing - Pro Marine 83877
The Pro Marine 83877 U-Joint Shaft Bearing is an aftermarket replacement bearing for select OMC Cobra sterndrive applications from the mid-1980s through the early 1990s.
Verified fitment includes a very broad group of OMC sterndrive engine and drive combinations from 1986 through 1993, including 2.3L, 2.5L, 3.0L, 4.3L, 5.0L, 5.7L, 5.8L, 7.4L and related OMC Cobra packages represented by the model numbers listed below.
This bearing cross references OMC numbers 0778117 and 0983877, Sierra 18-1172, and additional references 21542 and 878999.
OEM & Cross Reference Numbers
| Brand / Type | Part Number |
|---|---|
| Pro Marine | 83877 |
| OMC OEM | 0778117 |
| OMC OEM | 0983877 |
| Sierra | 18-1172 |
| Cross Reference | 21542 |
| Cross Reference | 878999 |
OMC Cobra Sterndrive Fitment
The Pro Marine 83877 bearing fits a large number of OMC Cobra sterndrive applications. The supplied application data covers model years 1986 through 1993.
| Model Year | Verified OMC Cobra Application Families |
|---|---|
| 1986 | Includes select 252, 302, 432, 434, 504, 574 and related AM / AP / KW / WX OMC sterndrive configurations. |
| 1987 | Includes select 232, 302, 432, 434, 504, 574 and 754 AM / AP / AR / FT / SR and related configurations. |
| 1988 | Includes select 232, 302, 432, 434, 502, 504, 574, 744 and 754 LGDP / RGDP / RGDE configurations. |
| 1989 | Includes select 232, 262, 302, 350, 432, 460, 502, 574 and 584 MED / MEF applications. |
| 1990 | Includes select 232, 302, 432, 434, 502, 574 and 584 PWR / PWS / PWC applications. |
| 1991 | Includes select 302, 432, 434, 502, 574 and 584 RGD-series OMC Cobra applications. |
| 1992 | Includes select 302, 432, 434, 502, 574 and 584 AMH / AMK-series applications. |
| 1993 | Includes select 50F, 58F, 302, 432, 434, 502 and 584 JVB / JVN-series applications. |
The supplied fitment contains hundreds of individual model references across the 1986-1993 OMC Cobra sterndrive family. Because OMC model numbers identify engine, drive and configuration details, the complete model number should be used when confirming fitment.
Representative Verified Model Numbers
The following are examples from the supplied fitment. They are not intended to replace the complete application list.
232AMFTC, 232AMRGDE, 232AMRGDP, 232APFTC, 232APRGDE, 232APRGDP, 252AMKWB, 252APKWB
302AMKWB, 302APFTC, 302APRGDP, 302AMRMED, 302BMRPWS, 302CMRRGD, 302CPRAMH, 302BMRJVB
432AMKWB, 432APRGDP, 432APRMED, 432APRPWS, 432APRRGD, 432APRAMH, 432APRJVB, 434APRGDP
502AMLGDP, 502APRMED, 502BPRPWS, 502APRRGD, 502APRAMH, 502BPRJVB
574AMKWB, 574APFTC, 574APRGDP, 574AMLMED, 574APRPWS, 584APRMED, 584APRRGD, 584APRJVB
744AMRGDP, 744APRGDP, 754APFTC, 754APSRC, 754BPRGDP and related applications
OMC used several U-joint shaft and drive configurations across the Cobra product line. Do not select this bearing by engine displacement or model year alone.
Verify your complete OMC model number and confirm that the application calls for 0778117, 0983877, 983877, 18-1172, 21542 or 878999.
What This Bearing is Used For
The U-joint shaft assembly transfers rotational power through the sterndrive driveline. Bearings in this assembly support the rotating shaft and help maintain proper alignment while the drivetrain is operating.
A worn or damaged bearing can allow excessive movement, noise or roughness in the U-joint shaft assembly. Because this area operates under significant load, bearing condition should be checked whenever the drive is removed or the U-joint shaft assembly is being serviced.
Common Signs of U-Joint Shaft Bearing Wear
- Grinding or rumbling noise from the drive area
- Roughness when rotating the shaft by hand
- Excessive bearing play
- Vibration from the driveline
- Visible corrosion on the bearing
- Water intrusion into the U-joint / bellows area
- Bearing damage found during drive service
- Abnormal wear on related shaft components
Why Inspect the U-Joint Area During Drive Service?
The U-joint area is normally accessible when the sterndrive is removed. This makes routine drive service a good opportunity to inspect the U-joints, shaft bearings, bellows, seals and related driveline components.
Water intrusion or a damaged bellows can quickly contaminate bearings and other components. Any roughness, corrosion or excessive play should be investigated before the drive is returned to service.
Key Features and Benefits
- Pro Marine aftermarket OMC Cobra U-joint shaft bearing
- Pro Marine part number 83877
- Replaces OMC 0778117
- Replaces OMC 0983877 / 983877
- Cross references Sierra 18-1172
- Cross references 21542
- Cross references 878999
- Fits select 1986 OMC Cobra sterndrives
- Fits select 1987 OMC Cobra sterndrives
- Fits select 1988 OMC Cobra sterndrives
- Fits select 1989 OMC Cobra sterndrives
- Fits select 1990 OMC Cobra sterndrives
- Fits select 1991 OMC Cobra sterndrives
- Fits select 1992 OMC Cobra sterndrives
- Fits select 1993 OMC Cobra sterndrives
FAQ
What OEM numbers does Pro Marine 83877 replace?
It cross references OMC 0778117 and
0983877, along with Sierra 18-1172,
21542 and 878999.
Is 983877 the same reference as 0983877?
The supplied cross-reference information lists 0983877.
OMC part numbers are also commonly searched without the leading zero as
983877.
What years does bearing 83877 fit?
The supplied application data includes a broad range of OMC Cobra
sterndrives from 1986 through 1993.
Does this fit 1986 OMC Cobra drives?
Yes. The supplied fitment includes numerous 1986 applications such as
252AMKWB, 252APKWB, 302AMKWB, 432AMKWB, 434AMKWB, 504AMKWB,
574AMKWB and related models.
Does it fit 1987 and 1988 OMC Cobra?
Yes. A large number of 1987 FT / SR / AR configurations and 1988
RGDP / RGDE configurations are included.
Does it fit 1989-1991 Cobra drives?
Yes. Verified applications include numerous 1989 MED-series, 1990
PWR / PWS-series and 1991 RGD-series OMC models.
Does it fit 1992 and 1993 OMC Cobra?
Yes. The supplied list includes numerous 1992 AMH / AMK and
1993 JVB / JVN applications.
Can I order this bearing just by engine size?
No. OMC used different driveline configurations within similar engine
families. Use the complete OMC model number and OEM bearing reference to
verify the correct part.
When should this bearing be inspected?
Inspect it whenever the sterndrive is removed for U-joint, bellows or
driveline service, especially if there has been water intrusion, noise,
roughness or excessive shaft movement.
Dealer Discounts & Store Policies
Dealer / Marine Industry Discounts
Are you a marine dealer, technician, boat builder, or industry professional? We offer dealer pricing for qualified marine businesses.
Shipping Policy
- Free shipping on orders over $100 continental U.S.
- Orders ship via UPS, USPS, and FedEx.
- Orders received before 5:30 PM EST ship the same business day.
- Typical delivery time is 1-5 business days.
30-Day Return Policy
- Returns accepted within 30 days of delivery.
- Parts must be new, unused, and in original packaging.
- Installed parts are not returnable.
- Return authorization is required before sending items back.
Need help with a return or order question?
Contact Us
Phone: 941-721-3000
Searchable Terms
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