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Relay

Yam 200-300 HPDI / Jetski Mer 75-115 / 225 EFI 4stroke
Yamaha Wave Runner
XL700 02-04/GP800 02-05
XLT800 02-04/GP1300 03-08
 
Yamaha Outboard 
50-225 4 Stroke
150-300 HPDI

Tohatsu
 8-50hp 2002-2022 

Mercury 
8-225 Efi 4 Stroke
Item#:
5214
Cross Reference#:
3-94-68N819
3H8760400
5041087
68N-81940-00-00
68V-8194A-00-00
8M0098898
825096
825096T
84932M
853809001
881352T
95642M
96356M
Manufacturer Item:
68N-81940-00-00
Manufacturer:
Pro Marine
Available:
In Stock
Your Price:
35.30
Each

Carburetor kit

Fits Yamaha F75-F100 4 Stroke Fits Mercury F75-F100 4 Stroke
Item#:
7743P
Cross Reference#:
18-7743
67F-W0093-00-00
8M0175367
8M6010314
804346T02
804346T1
9-37512
Manufacturer Item:
67F-W0093-00-00
Manufacturer:
Pro Marine
Available:
In Stock
Your Price:
51.45
Each

O-Ring Oil Filter Cap

Seadoo 02 & Later All 4Tec PWC/Jetboat Model
Item#:
560-11
Cross Reference#:
0460509
0462484
420850500
420850502
Manufacturer Item:
420850500
Manufacturer:
Pro Marine
Available:
In Stock
Your Price:
3.99
Each

Fuel Pressure Regulator

Mercruiser 500 EFI
Item#:
8498
Cross Reference#:
849899
9-33202
Manufacturer Item:
849899
Manufacturer:
Pro Marine
Available:
In Stock
Your Price:
71.65
Each

Sensor, MAP Sensor

Mercruiser 575Sci
Item#:
8499
Cross Reference#:
18-7682
849934
879150150
9-33602
Manufacturer Item:
849934
Manufacturer:
Pro Marine
Available:
In Stock
Your Price:
105.01
Each

Piston Ring, .010

Genuine Seadoo 720cc / 800cc Sub 8200LF
Item#:
800R1
Cross Reference#:
290815081
290815101
420815081
420815101
Manufacturer Item:
420815081
Manufacturer:
Pro Marine
Available:
Out of Stock
Your Price:
79.93
Each
This item is discontinued

Mercury 2.5L & 3.0L Outboard Driveshaft Seal Carrier 65354P

OEM Mercury Driveshaft Oil Seal Carrier for EFI & DFI Alpha I Gen II

OEM Mercury Driveshaft Oil Seal Carrier

Mercury 2.5L & 3.0L EFI / DFI Gearcase Seal Carrier

This genuine OEM Mercury driveshaft oil seal carrier fits select Mercury 2.5L and 3.0L EFI and DFI outboards using compatible gearcase assemblies.

The seal carrier supports the driveshaft sealing system in the upper gearcase area to help retain gear lube and prevent water intrusion into the lower unit.

Compatible Applications

Engine Family Engine Type Application Application Notes
Mercury 2.5L EFI Outboards Gearcase Driveshaft Seal Area Select high-performance lower units
Mercury 2.5L DFI Outboards Gearcase Driveshaft Seal Area Select OptiMax applications
Mercury 3.0L EFI Outboards Gearcase Driveshaft Seal Area Select EFI lower units
Mercury 3.0L DFI Outboards Gearcase Driveshaft Seal Area Select OptiMax and DFI applications
Alpha One Gen II Sterndrive Upper Gear Housing Select sterndrive applications
Fitment Note: Mercury used multiple driveshaft seal carrier designs depending on gearcase type, lower unit family, and production range.

Always verify your engine serial number and gearcase application before ordering lower unit sealing components.

OEM Part Numbers & Cross References

Type Part Number
Current Mercury OEM Number 8M0214948
Mercury Cross Reference 807929A1
Mercury Cross Reference 807929A2
Mercury Cross Reference 815922A1
Mercury Cross Reference 815922A5
Mercury Cross Reference 821759A1
Mercury Cross Reference 821759A2
Mercury Cross Reference 821759A3
Mercury Cross Reference 821759A4
Pro Marine Part Number 65354P

What This Driveshaft Oil Seal Carrier is Used For

This Mercury driveshaft oil seal carrier is installed in the upper area of compatible outboard gearcases and sterndrive gear housings.

The carrier supports the driveshaft oil seals and sealing surfaces while helping prevent water intrusion and gear lube leakage.

Corrosion, seal wear, damaged sealing surfaces, or improper installation can contribute to lower unit leaks and gearcase contamination.

Seal carriers are commonly replaced during lower unit rebuild service, driveshaft resealing, or when corrosion damages the seal bore area.

Key Features and Benefits

  • Genuine OEM Mercury driveshaft oil seal carrier
  • Fits select Mercury 2.5L and 3.0L EFI / DFI outboards
  • Also fits select Alpha One Gen II sterndrive applications
  • Supports proper driveshaft seal alignment
  • Helps prevent water intrusion into the lower unit
  • Helps retain gear lube inside the gearcase
  • Common replacement during lower unit rebuild service
  • OEM Mercury fit and sealing compatibility

Driveshaft Seal Carrier Details

  • Brand: Mercury Marine
  • Part Type: Driveshaft Oil Seal Carrier
  • Current OEM Number: 8M0214948
  • Cross References: 807929A1, 807929A2, 815922A1, 815922A5, 821759A1, 821759A2, 821759A3, 821759A4
  • Applications: Mercury 2.5L & 3.0L EFI / DFI Outboards
  • System: Lower Unit / Gearcase
  • Use: Driveshaft sealing and gearcase reseal service

FAQ

What engines does this seal carrier fit?
This carrier fits select Mercury 2.5L and 3.0L EFI and DFI outboards along with certain Alpha One Gen II applications.

What does a driveshaft seal carrier do?
The seal carrier supports the driveshaft oil seals and helps prevent water intrusion and gear lube leakage inside the lower unit.

Why would this part need replacement?
Common causes include corrosion, damaged sealing surfaces, water intrusion, or lower unit rebuild service.

Does this replace older Mercury assemblies?
Yes. This carrier replaces several earlier Mercury part numbers including 807929A1, 815922A5, and 821759A4.

Should the lower unit be pressure tested after installation?
Yes. Pressure and vacuum testing is recommended after seal service to verify proper sealing.

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.

Apply for a Dealer Account

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.
  • Lower unit sealing components should be installed only after proper inspection and diagnosis.
  • Items must be new, unused, and in original packaging.
  • Return authorization is required before sending items back.

Need help with a return or order question?
Contact Us
Phone: 941-721-3000

Searchable Terms

65354P, 8M0214948, 807929A1, 807929A2, 815922A1, 815922A5, 821759A1, 821759A2, 821759A3, 821759A4, Mercury seal carrier, driveshaft oil seal carrier, Mercury 2.5L seal carrier, Mercury 3.0L seal carrier, Mercury EFI lower unit seal, Mercury DFI gearcase seal carrier, Mercury OptiMax seal carrier, Alpha One Gen II seal carrier

Item#:
65354P
Cross Reference#:
8M0214948
807929A1
807929A2
815922A1
815922A5
821759A1
821759A2
821759A3
821759A4
Manufacturer Item:
807929A1
Manufacturer:
Pro Marine
Available:
In Stock
Your Price:
29.86
Each

Power Valve WE Kit

Yamaha 98-05 All 800cc Power Valve Model
Item#:
800RV
Manufacturer:
Pro Marine
Available:
In Stock
Your Price:
59.94
Each

Engine Rebuild Kit .015 Over

Mercury 225/250 EFI 3.0L OT409000-OT598999
Item#:
7015-5
Manufacturer:
Pro Marine
Available:
In Stock
1619.6300
Your Price:
1538.65
Each

Engine Rebuild Kit .015 Over

Mercury 225/250 Carb/EFI 3.0L OT325117-Up
Item#:
7015-2
Manufacturer:
Pro Marine
Available:
In Stock
1619.6300
Your Price:
1538.65
Each

O Ring Kit, Fuel Rail

Mercury 75-300 DFI SportJet 250 DFI
Item#:
804840
Cross Reference#:
804840
Manufacturer Item:
804840
Manufacturer:
Pro Marine
Available:
In Stock
Your Price:
31.84
Each

Engine Rebuild Kit .015 Over

Mercury 225/250 Carb/EFI 3.0L Double Roller Main
Item#:
7015-1
Manufacturer:
Pro Marine
Available:
In Stock
1593.1900
Your Price:
1513.53
Each
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