Family-Owned • 40+ Years Experience • Authorized Mercury & Mercruiser Dealer


Lower Units & Gearcases

Lower Units & Gearcases

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
  • MERCURY OEM GC 40-60 LG, 8M0118186

    Mercury Gear Case 40-60 LG OEM 8M0118186

    Mercury

    MSRP: $4,292.85
    $3,648.92
    Genuine Mercury Gear Case 40-60 LG, part number 8M0118186. Designed for use with compatible applications.
    8M0118186
    SKU:
    8M0118186
    Availability:
    Usually Ships within 24hours
    Weight:
    960.00 Ounces
    MSRP: $4,292.85
    $3,648.92
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $4,292.85
    $3,648.92
    Subtotal:
  • MERCURY OEM GC SEAPRO L LONG, 8M0118187

    Mercury Gear Case SEAPRO L LONG OEM 8M0118187

    Mercury

    MSRP: $4,292.85
    $3,648.92
    Genuine Mercury Gear Case SEAPRO L LONG, part number 8M0118187. Designed for use with compatible applications.
    8M0118187
    SKU:
    8M0118187
    Availability:
    Usually Ships within 24hours
    Weight:
    976.00 Ounces
    MSRP: $4,292.85
    $3,648.92
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $4,292.85
    $3,648.92
    Subtotal:
  • MERCURY OEM GC COMP 3.0L CXL, 8M0236248

    Mercury Gear Case COMP 3.0L CXL OEM 8M0236248

    Mercury

    MSRP: $4,114.30
    $3,497.16
    Genuine Mercury Gear Case COMP 3.0L CXL, part number 8M0236248. Designed for use with compatible applications.
    8M0236248
    SKU:
    8M0236248
    Availability:
    Usually Ships within 24hours
    Weight:
    1,088.00 Ounces
    MSRP: $4,114.30
    $3,497.16
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $4,114.30
    $3,497.16
    Subtotal:
  • MERCURY OEM GC COMP 3.0L CXXL, 859399T17

    Mercury Gear Case COMP 3.0L CXXL OEM 859399T17

    Mercury

    MSRP: $4,114.30
    $3,497.16
    Genuine Mercury Gear Case COMP 3.0L CXXL, part number 859399T17. Designed for use with compatible applications.
    859399T17
    SKU:
    859399T17
    Availability:
    Usually Ships within 24hours
    Weight:
    992.00 Ounces
    MSRP: $4,114.30
    $3,497.16
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $4,114.30
    $3,497.16
    Subtotal:
  • MERCURY OEM GC-BASIC CHMBR GR, 8M0219310

    Mercury Gear Case-BASIC CHMBR GR OEM 8M0219310

    Mercury

    MSRP: $3,950.00
    $3,357.50
    Genuine Mercury Gear Case-BASIC CHMBR GR, part number 8M0219310. Designed for use with compatible applications.
    8M0219310
    SKU:
    8M0219310
    Availability:
    Usually Ships within 24hours
    Weight:
    0.00 Ounces
    MSRP: $3,950.00
    $3,357.50
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $3,950.00
    $3,357.50
    Subtotal:
  • MERCURY OEM GC-BASIC STD GR, 8M0219308

    Mercury Gear Case-BASIC STD GR OEM 8M0219308

    Mercury

    MSRP: $3,950.00
    $3,357.50
    Genuine Mercury Gear Case-BASIC STD GR, part number 8M0219308. Designed for use with compatible applications.
    8M0219308
    SKU:
    8M0219308
    Availability:
    Usually Ships within 24hours
    Weight:
    656.00 Ounces
    MSRP: $3,950.00
    $3,357.50
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $3,950.00
    $3,357.50
    Subtotal:
  • MERCURY OEM GC-BASIC CHMBR CF, 8M0219306

    Mercury Gear Case-BASIC CHMBR CF OEM 8M0219306

    Mercury

    MSRP: $3,950.00
    $3,357.50
    Genuine Mercury Gear Case-BASIC CHMBR CF, part number 8M0219306. Designed for use with compatible applications.
    8M0219306
    SKU:
    8M0219306
    Availability:
    Usually Ships within 24hours
    Weight:
    0.00 Ounces
    MSRP: $3,950.00
    $3,357.50
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $3,950.00
    $3,357.50
    Subtotal:
  • MERCURY OEM GC- BASIC STD GR, 8M0219304

    Mercury Gear Case- BASIC STD GR OEM 8M0219304

    Mercury

    MSRP: $3,950.00
    $3,357.50
    Genuine Mercury Gear Case- BASIC STD GR, part number 8M0219304. Designed for use with compatible applications.
    8M0219304
    SKU:
    8M0219304
    Availability:
    Usually Ships within 24hours
    Weight:
    0.00 Ounces
    MSRP: $3,950.00
    $3,357.50
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $3,950.00
    $3,357.50
    Subtotal:
  • MERCURY OEM GC BRV III SC-BSC, 8866J30

    Mercury Gear Case BRV III SC-BSC OEM 8866J30

    Mercury

    MSRP: $3,946.00
    $3,354.10
    Genuine Mercury Gear Case BRV III SC-BSC, part number 8866J30. Designed for use with compatible applications.
    8866J30
    SKU:
    8866J30
    Availability:
    Usually Ships within 24hours
    Weight:
    576.00 Ounces
    MSRP: $3,946.00
    $3,354.10
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $3,946.00
    $3,354.10
    Subtotal:
  • MERCURY OEM GC 2.5L CXL 1.8, 9148T86

    Mercury Gear Case 2.5L CXL 1.8 OEM 9148T86

    Mercury

    MSRP: $3,864.30
    $3,284.66
    Genuine Mercury Gear Case 2.5L CXL 1.8, part number 9148T86. Designed for use with compatible applications.
    9148T86
    SKU:
    9148T86
    Availability:
    Usually Ships within 24hours
    Weight:
    976.00 Ounces
    MSRP: $3,864.30
    $3,284.66
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $3,864.30
    $3,284.66
    Subtotal:
  • MERCURY OEM GC BRAVO II-BASIC, 8294A14

    Mercury Gear Case BRAVO II-BASIC OEM 8294A14

    Mercury

    MSRP: $3,858.36
    $3,279.61
    Genuine Mercury Gear Case BRAVO II-BASIC, part number 8294A14. Designed for use with compatible applications.
    8294A14
    SKU:
    8294A14
    Availability:
    Usually Ships within 24hours
    Weight:
    576.00 Ounces
    MSRP: $3,858.36
    $3,279.61
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $3,858.36
    $3,279.61
    Subtotal:
  • MERCURY OEM GC BRV III -BASIC, 8M0046683

    Mercury Gear Case BRV III -BASIC OEM 8M0046683

    Mercury

    MSRP: $3,804.86
    $3,234.13
    Genuine Mercury Gear Case BRV III -BASIC, part number 8M0046683. Designed for use with compatible applications.
    8M0046683
    SKU:
    8M0046683
    Availability:
    Usually Ships within 24hours
    Weight:
    640.00 Ounces
    MSRP: $3,804.86
    $3,234.13
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $3,804.86
    $3,234.13
    Subtotal:
  • MERCURY OEM CPO GC V8-185-CXL, 8M0235774

    Mercury CPO Gear Case V8-185-CXL OEM 8M0235774

    Mercury

    MSRP: $3,743.75
    $3,182.19
    Genuine Mercury CPO Gear Case V8-185-CXL, part number 8M0235774. Designed for use with compatible applications.
    8M0235774
    SKU:
    8M0235774
    Availability:
    Usually Ships within 24hours
    Weight:
    0.00 Ounces
    MSRP: $3,743.75
    $3,182.19
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $3,743.75
    $3,182.19
    Subtotal:
  • MERCURY OEM CPO GC V8-175-XL, 8M0235786

    Mercury CPO Gear Case V8-175-XL OEM 8M0235786

    Mercury

    MSRP: $3,743.75
    $3,182.19
    Genuine Mercury CPO Gear Case V8-175-XL, part number 8M0235786. Designed for use with compatible applications.
    8M0235786
    SKU:
    8M0235786
    Availability:
    Usually Ships within 24hours
    Weight:
    0.00 Ounces
    MSRP: $3,743.75
    $3,182.19
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $3,743.75
    $3,182.19
    Subtotal:
  • MERCURY OEM CPO GC V8-175-L, 8M0235770

    Mercury CPO Gear Case V8-175-L OEM 8M0235770

    Mercury

    MSRP: $3,743.75
    $3,182.19
    Genuine Mercury CPO Gear Case V8-175-L, part number 8M0235770. Designed for use with compatible applications.
    8M0235770
    SKU:
    8M0235770
    Availability:
    Usually Ships within 24hours
    Weight:
    976.00 Ounces
    MSRP: $3,743.75
    $3,182.19
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $3,743.75
    $3,182.19
    Subtotal:
  • MERCURY OEM CPO GC V8-185-XL, 8M0235772

    Mercury CPO Gear Case V8-185-XL OEM 8M0235772

    Mercury

    MSRP: $3,743.75
    $3,182.19
    Genuine Mercury CPO Gear Case V8-185-XL, part number 8M0235772. Designed for use with compatible applications.
    8M0235772
    SKU:
    8M0235772
    Availability:
    Usually Ships within 24hours
    Weight:
    0.00 Ounces
    MSRP: $3,743.75
    $3,182.19
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $3,743.75
    $3,182.19
    Subtotal:
  • MERCURY OEM CPO GC V8-175-XL, 8M0235785

    Mercury CPO Gear Case V8-175-XL OEM 8M0235785

    Mercury

    MSRP: $3,743.75
    $3,182.19
    Genuine Mercury CPO Gear Case V8-175-XL, part number 8M0235785. Designed for use with compatible applications.
    8M0235785
    SKU:
    8M0235785
    Availability:
    Usually Ships within 24hours
    Weight:
    1,040.00 Ounces
    MSRP: $3,743.75
    $3,182.19
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $3,743.75
    $3,182.19
    Subtotal:
  • MERCURY OEM CPO GC V8-175-XL, 8M0235776

    Mercury CPO Gear Case V8-175-XL OEM 8M0235776

    Mercury

    MSRP: $3,743.75
    $3,182.19
    Genuine Mercury CPO Gear Case V8-175-XL, part number 8M0235776. Designed for use with compatible applications.
    8M0235776
    SKU:
    8M0235776
    Availability:
    Usually Ships within 24hours
    Weight:
    1,056.00 Ounces
    MSRP: $3,743.75
    $3,182.19
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $3,743.75
    $3,182.19
    Subtotal:
  • MERCURY OEM GC BASIC TM SILVR, 8M0228609

    Mercury Gear Case BASIC TM SILVR OEM 8M0228609

    Mercury

    MSRP: $3,699.49
    $3,144.57
    Genuine Mercury Gear Case BASIC TM SILVR, part number 8M0228609. Designed for use with compatible applications.
    8M0228609
    SKU:
    8M0228609
    Availability:
    Usually Ships within 24hours
    Weight:
    464.00 Ounces
    MSRP: $3,699.49
    $3,144.57
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $3,699.49
    $3,144.57
    Subtotal:
  • MERCURY OEM GC BASIC SIL SP, 8M0228044

    Mercury Gear Case BASIC SIL SP OEM 8M0228044

    Mercury

    MSRP: $3,651.49
    $3,103.77
    Genuine Mercury Gear Case BASIC SIL SP, part number 8M0228044. Designed for use with compatible applications.
    8M0228044
    SKU:
    8M0228044
    Availability:
    Usually Ships within 24hours
    Weight:
    512.00 Ounces
    MSRP: $3,651.49
    $3,103.77
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $3,651.49
    $3,103.77
    Subtotal:
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