Lower Units & Gearcases
Shop Mercury lower units and gearcase assemblies including OEM replacement components designed for reliable outboard performance and proper fitment. Lower units and gearcases play a critical role in transferring engine power, supporting propeller operation, and maintaining smooth drivetrain performance on the water.
Gregor’s Marine carries genuine Mercury gearcase and lower unit components for a wide range of outboard applications.
Call our team at (727) 596-5929 for assistance confirming fitment.
- Product
- Qty in Cart
- Quantity
- Price
- Subtotal
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Mercury Gear Case 2-3.5 4S S OEM 8M0122309
Mercury
MSRP: $407.15$346.08Genuine Mercury Gear Case 2-3.5 4S S, part number 8M0122309. Designed for use with compatible applications.8M0122309- SKU:
- 8M0122309
- Availability:
- Usually Ships within 24hours
- Weight:
- 160.00 Ounces
MSRP: $407.15$346.08 -
Mercury DRIVE ASSY OEM 888329A1
Mercury
MSRP: $353.99$300.89Genuine Mercury DRIVE ASSY, part number 888329A1. Designed for use with compatible applications.888329A1- SKU:
- 888329A1
- Availability:
- Usually Ships within 24hours
- Weight:
- 3.01 Ounces
MSRP: $353.99$300.89 -
Mercury Gear Case BASIC OEM 8M0187015
Mercury
MSRP: $348.99$296.64Genuine Mercury Gear Case BASIC, part number 8M0187015. Designed for use with compatible applications.8M0187015- SKU:
- 8M0187015
- Availability:
- Usually Ships within 24hours
- Weight:
- 160.00 Ounces
MSRP: $348.99$296.64 -
Mercury LOWER UNIT ASSY OEM M899444T
Mercury
MSRP: $285.99$243.09Genuine Mercury LOWER UNIT ASSY, part number M899444T. Designed for use with compatible applications.M899444T- SKU:
- M899444T
- Availability:
- Usually Ships within 24hours
- Weight:
- 177.28 Ounces
MSRP: $285.99$243.09 -
Mercury Gear Case 4-5 2S B S OEM 8M0188396
Mercury
MSRP: $285.70$242.85Genuine Mercury Gear Case 4-5 2S B S, part number 8M0188396. Designed for use with compatible applications.8M0188396- SKU:
- 8M0188396
- Availability:
- Usually Ships within 24hours
- Weight:
- 224.00 Ounces
MSRP: $285.70$242.85 -
Mercury Gear Case 2-3.5 4S SH OEM 8M0116852
Mercury
MSRP: $207.15$176.08Genuine Mercury Gear Case 2-3.5 4S SH, part number 8M0116852. Designed for use with compatible applications.8M0116852- SKU:
- 8M0116852
- Availability:
- Usually Ships within 24hours
- Weight:
- 35.20 Ounces
MSRP: $207.15$176.08 -
Mercury GEAR HOUSING-SP OEM 9621T6
Mercury
MSRP: $207.15$176.08Genuine Mercury GEAR HOUSING-SP, part number 9621T6. Designed for use with compatible applications.9621T6- SKU:
- 9621T6
- Availability:
- Usually Ships within 24hours
- Weight:
- 52.80 Ounces
MSRP: $207.15$176.08 -
Mercury GEARCASE SEAL KIT OEM 8M0200137
Mercury
MSRP: $198.49$168.72Genuine Mercury GEARCASE SEAL KIT, part number 8M0200137. Designed for use with compatible applications.8M0200137- SKU:
- 8M0200137
- Availability:
- Usually Ships within 24hours
- Weight:
- 11.36 Ounces
MSRP: $198.49$168.72 -
Mercury GEARCASE SEAL KIT OEM 8M0166531
Mercury
MSRP: $179.06$152.20Genuine Mercury GEARCASE SEAL KIT, part number 8M0166531. Designed for use with compatible applications.8M0166531- SKU:
- 8M0166531
- Availability:
- Usually Ships within 24hours
- Weight:
- 9.20 Ounces
MSRP: $179.06$152.20 -
Mercury MOTOR LOWER UNIT OEM 8M0204409
Mercury
MSRP: $161.99$137.69Genuine Mercury MOTOR LOWER UNIT, part number 8M0204409. Designed for use with compatible applications.8M0204409- SKU:
- 8M0204409
- Availability:
- Usually Ships within 24hours
- Weight:
- 53.12 Ounces
MSRP: $161.99$137.69 -
Mercury SEAL KIT GEARCASE OEM 8M0240768
Mercury
MSRP: $161.58$137.34Genuine Mercury SEAL KIT GEARCASE, part number 8M0240768. Designed for use with compatible applications.8M0240768- SKU:
- 8M0240768
- Availability:
- Usually Ships within 24hours
- Weight:
- 8.64 Ounces
MSRP: $161.58$137.34 -
Mercury GEARCASE SEAL KIT OEM 8M0142979
Mercury
MSRP: $158.49$134.72Genuine Mercury GEARCASE SEAL KIT, part number 8M0142979. Designed for use with compatible applications.8M0142979- SKU:
- 8M0142979
- Availability:
- Usually Ships within 24hours
- Weight:
- 10.24 Ounces
MSRP: $158.49$134.72 -
Mercury LOWER UNIT ASSY OEM MHM39706T
Mercury
MSRP: $147.99$125.79Genuine Mercury LOWER UNIT ASSY, part number MHM39706T. Designed for use with compatible applications.MHM39706T- SKU:
- MHM39706T
- Availability:
- Usually Ships within 24hours
- Weight:
- 123.20 Ounces
MSRP: $147.99$125.79 -
Mercury GEAR ASSY DRIVER OEM 8M0142414
Mercury
MSRP: $142.49$121.12Genuine Mercury GEAR ASSY DRIVER, part number 8M0142414. Designed for use with compatible applications.8M0142414- SKU:
- 8M0142414
- Availability:
- Usually Ships within 24hours
- Weight:
- 13.20 Ounces
MSRP: $142.49$121.12 -
Mercury GEARCASE SEAL KIT OEM 8M0088081
Mercury
MSRP: $120.99$102.84Genuine Mercury GEARCASE SEAL KIT, part number 8M0088081. Designed for use with compatible applications.8M0088081- SKU:
- 8M0088081
- Availability:
- Usually Ships within 24hours
- Weight:
- 8.40 Ounces
MSRP: $120.99$102.84 -
Mercury SM HP GEARCASE OEM 842009
Mercury
MSRP: $114.00$96.90Genuine Mercury SM HP GEARCASE, part number 842009. Designed for use with compatible applications.842009- SKU:
- 842009
- Availability:
- Usually Ships within 24hours
- Weight:
- 32.00 Ounces
MSRP: $114.00$96.90 -
Mercury GEARCASE SEAL KIT OEM 8M0088080
Mercury
MSRP: $109.49$93.07Genuine Mercury GEARCASE SEAL KIT, part number 8M0088080. Designed for use with compatible applications.8M0088080- SKU:
- 8M0088080
- Availability:
- Usually Ships within 24hours
- Weight:
- 3.70 Ounces
MSRP: $109.49$93.07 -
Mercury GEAR ASSY-DRIVE OEM 14513A09
Mercury
MSRP: $103.99$88.39Genuine Mercury GEAR ASSY-DRIVE, part number 14513A09. Designed for use with compatible applications.14513A09- SKU:
- 14513A09
- Availability:
- Usually Ships within 24hours
- Weight:
- 0.13 Ounces
MSRP: $103.99$88.39 -
Mercury DRIVE ASSY OEM 803945
Mercury
MSRP: $100.49$85.42Genuine Mercury DRIVE ASSY, part number 803945. Designed for use with compatible applications.803945- SKU:
- 803945
- Availability:
- Usually Ships within 24hours
- Weight:
- 0.75 Ounces
MSRP: $100.49$85.42 -
Mercury BRACKET Gear Case FILL OEM 8M0179250
Mercury
MSRP: $92.99$79.04Genuine Mercury BRACKET Gear Case FILL, part number 8M0179250. Designed for use with compatible applications.8M0179250- SKU:
- 8M0179250
- Availability:
- Usually Ships within 24hours
- Weight:
- 5.60 Ounces
MSRP: $92.99$79.04
Prefer to Call? (727) 596-5929