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 CXXL BLK, 8M0142301

    Mercury Gear Case CXXL BLK OEM 8M0142301

    Mercury

    MSRP: $8,892.85
    $7,558.92
    Genuine Mercury Gear Case CXXL BLK, part number 8M0142301. Designed for use with compatible applications.
    8M0142301
    SKU:
    8M0142301
    Availability:
    Usually Ships within 24hours
    Weight:
    1,024.00 Ounces
    MSRP: $8,892.85
    $7,558.92
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $8,892.85
    $7,558.92
    Subtotal:
  • MERCURY OEM GC SP L BLK, 8M0142303

    Mercury Gear Case SP L BLK OEM 8M0142303

    Mercury

    MSRP: $8,892.85
    $7,558.92
    Genuine Mercury Gear Case SP L BLK, part number 8M0142303. Designed for use with compatible applications.
    8M0142303
    SKU:
    8M0142303
    Availability:
    Usually Ships within 24hours
    Weight:
    1,120.00 Ounces
    MSRP: $8,892.85
    $7,558.92
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $8,892.85
    $7,558.92
    Subtotal:
  • MERCURY OEM GC VER 1.85 XXL, 8M0236286

    Mercury Gear Case VER 1.85 XXL OEM 8M0236286

    Mercury

    MSRP: $8,657.15
    $7,358.58
    Genuine Mercury Gear Case VER 1.85 XXL, part number 8M0236286. Designed for use with compatible applications.
    8M0236286
    SKU:
    8M0236286
    Availability:
    Usually Ships within 24hours
    Weight:
    0.00 Ounces
    MSRP: $8,657.15
    $7,358.58
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $8,657.15
    $7,358.58
    Subtotal:
  • MERCURY OEM GC VER 1, 8M0236284

    Mercury Gear Case VER 1 OEM 8M0236284

    Mercury

    MSRP: $8,657.15
    $7,358.58
    Genuine Mercury Gear Case VER 1, part number 8M0236284. Designed for use with compatible applications.
    8M0236284
    SKU:
    8M0236284
    Availability:
    Usually Ships within 24hours
    Weight:
    1,536.00 Ounces
    MSRP: $8,657.15
    $7,358.58
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $8,657.15
    $7,358.58
    Subtotal:
  • MERCURY OEM GC-L6 S 1.85 L, 8M0117239

    Mercury Gear Case-L6 S 1.85 L OEM 8M0117239

    Mercury

    MSRP: $8,657.15
    $7,358.58
    Genuine Mercury Gear Case-L6 S 1.85 L, part number 8M0117239. Designed for use with compatible applications.
    8M0117239
    SKU:
    8M0117239
    Availability:
    Usually Ships within 24hours
    Weight:
    1,184.00 Ounces
    MSRP: $8,657.15
    $7,358.58
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $8,657.15
    $7,358.58
    Subtotal:
  • MERCURY OEM GC VER-1.75 L, 8M0078252

    Mercury Gear Case VER-1.75 L OEM 8M0078252

    Mercury

    MSRP: $8,657.15
    $7,358.58
    Genuine Mercury Gear Case VER-1.75 L, part number 8M0078252. Designed for use with compatible applications.
    8M0078252
    SKU:
    8M0078252
    Availability:
    Usually Ships within 24hours
    Weight:
    1,200.00 Ounces
    MSRP: $8,657.15
    $7,358.58
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $8,657.15
    $7,358.58
    Subtotal:
  • MERCURY OEM GC SM BASIC CAMB, 8M0168313

    Mercury Gear Case SM BASIC CAMB OEM 8M0168313

    Mercury

    MSRP: $8,505.00
    $7,229.25
    Genuine Mercury Gear Case SM BASIC CAMB, part number 8M0168313. Designed for use with compatible applications.
    8M0168313
    SKU:
    8M0168313
    Availability:
    Usually Ships within 24hours
    Weight:
    672.00 Ounces
    MSRP: $8,505.00
    $7,229.25
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $8,505.00
    $7,229.25
    Subtotal:
  • MERCURY OEM GC SM BASIC SLVR, 8M0168312

    Mercury Gear Case SM BASIC SLVR OEM 8M0168312

    Mercury

    MSRP: $8,310.00
    $7,063.50
    Genuine Mercury Gear Case SM BASIC SLVR, part number 8M0168312. Designed for use with compatible applications.
    8M0168312
    SKU:
    8M0168312
    Availability:
    Usually Ships within 24hours
    Weight:
    672.00 Ounces
    MSRP: $8,310.00
    $7,063.50
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $8,310.00
    $7,063.50
    Subtotal:
  • MERCURY OEM TOOL SET-GEARCASE, 8M0215032

    Mercury TOOL SET-GEARCASE OEM 8M0215032

    Mercury

    MSRP: $8,285.99
    $7,043.09
    Genuine Mercury TOOL SET-GEARCASE, part number 8M0215032. Designed for use with compatible applications.
    8M0215032
    SKU:
    8M0215032
    Availability:
    Usually Ships within 24hours
    Weight:
    1,600.00 Ounces
    MSRP: $8,285.99
    $7,043.09
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $8,285.99
    $7,043.09
    Subtotal:
  • MERCURY OEM GC 225 4ST XXL, 888680T07

    Mercury Gear Case 225 4ST XXL OEM 888680T07

    Mercury

    MSRP: $8,264.30
    $7,024.66
    Genuine Mercury Gear Case 225 4ST XXL, part number 888680T07. Designed for use with compatible applications.
    888680T07
    SKU:
    888680T07
    Availability:
    Usually Ships within 24hours
    Weight:
    1,264.00 Ounces
    MSRP: $8,264.30
    $7,024.66
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $8,264.30
    $7,024.66
    Subtotal:
  • MERCURY OEM GC L6 4S XXL, 8M0236259

    Mercury Gear Case L6 4S XXL OEM 8M0236259

    Mercury

    MSRP: $8,185.70
    $6,957.85
    Genuine Mercury Gear Case L6 4S XXL, part number 8M0236259. Designed for use with compatible applications.
    8M0236259
    SKU:
    8M0236259
    Availability:
    Usually Ships within 24hours
    Weight:
    1,008.00 Ounces
    MSRP: $8,185.70
    $6,957.85
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $8,185.70
    $6,957.85
    Subtotal:
  • MERCURY OEM GC L4 4S CXL, 8M0236263

    Mercury Gear Case L4 4S CXL OEM 8M0236263

    Mercury

    MSRP: $8,185.70
    $6,957.85
    Genuine Mercury Gear Case L4 4S CXL, part number 8M0236263. Designed for use with compatible applications.
    8M0236263
    SKU:
    8M0236263
    Availability:
    Usually Ships within 24hours
    Weight:
    1,312.00 Ounces
    MSRP: $8,185.70
    $6,957.85
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $8,185.70
    $6,957.85
    Subtotal:
  • MERCURY OEM GC L4 4S XL, 8M0236262

    Mercury Gear Case L4 4S XL OEM 8M0236262

    Mercury

    MSRP: $8,185.70
    $6,957.85
    Genuine Mercury Gear Case L4 4S XL, part number 8M0236262. Designed for use with compatible applications.
    8M0236262
    SKU:
    8M0236262
    Availability:
    Usually Ships within 24hours
    Weight:
    1,280.00 Ounces
    MSRP: $8,185.70
    $6,957.85
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $8,185.70
    $6,957.85
    Subtotal:
  • MERCURY OEM GC XXL BLK, 8M0235810

    Mercury Gear Case XXL BLK OEM 8M0235810

    Mercury

    MSRP: $8,185.70
    $6,957.85
    Genuine Mercury Gear Case XXL BLK, part number 8M0235810. Designed for use with compatible applications.
    8M0235810
    SKU:
    8M0235810
    Availability:
    Usually Ships within 24hours
    Weight:
    1,056.00 Ounces
    MSRP: $8,185.70
    $6,957.85
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $8,185.70
    $6,957.85
    Subtotal:
  • MERCURY OEM GC XL BLK, 8M0235806

    Mercury Gear Case XL BLK OEM 8M0235806

    Mercury

    MSRP: $8,185.70
    $6,957.85
    Genuine Mercury Gear Case XL BLK, part number 8M0235806. Designed for use with compatible applications.
    8M0235806
    SKU:
    8M0235806
    Availability:
    Usually Ships within 24hours
    Weight:
    1,008.00 Ounces
    MSRP: $8,185.70
    $6,957.85
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $8,185.70
    $6,957.85
    Subtotal:
  • MERCURY OEM GC L6 4S XL, 8M0236256

    Mercury Gear Case L6 4S XL OEM 8M0236256

    Mercury

    MSRP: $8,185.70
    $6,957.85
    Genuine Mercury Gear Case L6 4S XL, part number 8M0236256. Designed for use with compatible applications.
    8M0236256
    SKU:
    8M0236256
    Availability:
    Usually Ships within 24hours
    Weight:
    1,008.00 Ounces
    MSRP: $8,185.70
    $6,957.85
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $8,185.70
    $6,957.85
    Subtotal:
  • MERCURY OEM GC L4 4S LG, 8M0236261

    Mercury Gear Case L4 4S LG OEM 8M0236261

    Mercury

    MSRP: $8,185.70
    $6,957.85
    Genuine Mercury Gear Case L4 4S LG, part number 8M0236261. Designed for use with compatible applications.
    8M0236261
    SKU:
    8M0236261
    Availability:
    Usually Ships within 24hours
    Weight:
    1,120.00 Ounces
    MSRP: $8,185.70
    $6,957.85
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $8,185.70
    $6,957.85
    Subtotal:
  • MERCURY OEM GC L BLK, 8M0235804

    Mercury Gear Case L BLK OEM 8M0235804

    Mercury

    MSRP: $8,185.70
    $6,957.85
    Genuine Mercury Gear Case L BLK, part number 8M0235804. Designed for use with compatible applications.
    8M0235804
    SKU:
    8M0235804
    Availability:
    Usually Ships within 24hours
    Weight:
    1,280.00 Ounces
    MSRP: $8,185.70
    $6,957.85
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $8,185.70
    $6,957.85
    Subtotal:
  • MERCURY OEM GC L6 1.75 XL, 8M0236265

    Mercury Gear Case L6 1.75 XL OEM 8M0236265

    Mercury

    MSRP: $8,185.70
    $6,957.85
    Genuine Mercury Gear Case L6 1.75 XL, part number 8M0236265. Designed for use with compatible applications.
    8M0236265
    SKU:
    8M0236265
    Availability:
    Usually Ships within 24hours
    Weight:
    1,120.00 Ounces
    MSRP: $8,185.70
    $6,957.85
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $8,185.70
    $6,957.85
    Subtotal:
  • MERCURY OEM GC 300XXL 1.75:1, 880686T56

    Mercury Gear Case 300XXL 1.75:1 OEM 880686T56

    Mercury

    MSRP: $8,185.70
    $6,957.85
    Genuine Mercury Gear Case 300XXL 1.75:1, part number 880686T56. Designed for use with compatible applications.
    880686T56
    SKU:
    880686T56
    Availability:
    Usually Ships within 24hours
    Weight:
    1,104.00 Ounces
    MSRP: $8,185.70
    $6,957.85
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $8,185.70
    $6,957.85
    Subtotal:
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