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 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:
  • MERCURY OEM GC L SILVER, 8M0235834

    Mercury Gear Case L SILVER OEM 8M0235834

    Mercury

    MSRP: $7,971.45
    $6,775.73
    Genuine Mercury Gear Case L SILVER, part number 8M0235834. Designed for use with compatible applications.
    8M0235834
    SKU:
    8M0235834
    Availability:
    Usually Ships within 24hours
    Weight:
    1,280.00 Ounces
    MSRP: $7,971.45
    $6,775.73
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $7,971.45
    $6,775.73
    Subtotal:
  • MERCURY OEM GC L BLK, 8M0235817

    Mercury Gear Case L BLK OEM 8M0235817

    Mercury

    MSRP: $7,971.45
    $6,775.73
    Genuine Mercury Gear Case L BLK, part number 8M0235817. Designed for use with compatible applications.
    8M0235817
    SKU:
    8M0235817
    Availability:
    Usually Ships within 24hours
    Weight:
    1,264.00 Ounces
    MSRP: $7,971.45
    $6,775.73
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $7,971.45
    $6,775.73
    Subtotal:
  • MERCURY OEM GC VER 1.85 L, 8M0117252

    Mercury Gear Case VER 1.85 L OEM 8M0117252

    Mercury

    MSRP: $7,971.45
    $6,775.73
    Genuine Mercury Gear Case VER 1.85 L, part number 8M0117252. Designed for use with compatible applications.
    8M0117252
    SKU:
    8M0117252
    Availability:
    Usually Ships within 24hours
    Weight:
    1,200.00 Ounces
    MSRP: $7,971.45
    $6,775.73
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $7,971.45
    $6,775.73
    Subtotal:
  • MERCURY OEM GC-BASIC CMBR WHT, 8M0225062

    Mercury Gear Case-BASIC CMBR WHT OEM 8M0225062

    Mercury

    MSRP: $7,915.00
    $6,727.75
    Genuine Mercury Gear Case-BASIC CMBR WHT, part number 8M0225062. Designed for use with compatible applications.
    8M0225062
    SKU:
    8M0225062
    Availability:
    Usually Ships within 24hours
    Weight:
    0.00 Ounces
    MSRP: $7,915.00
    $6,727.75
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $7,915.00
    $6,727.75
    Subtotal:
  • MERCURY OEM GC-BASIC CMBR WHT, 8M0225061

    Mercury Gear Case-BASIC CMBR WHT OEM 8M0225061

    Mercury

    MSRP: $7,915.00
    $6,727.75
    Genuine Mercury Gear Case-BASIC CMBR WHT, part number 8M0225061. Designed for use with compatible applications.
    8M0225061
    SKU:
    8M0225061
    Availability:
    Usually Ships within 24hours
    Weight:
    0.00 Ounces
    MSRP: $7,915.00
    $6,727.75
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $7,915.00
    $6,727.75
    Subtotal:
  • MERCURY OEM GEAR HOUSING BASC, 8M0102795

    Mercury GEAR HOUSING BASC OEM 8M0102795

    Mercury

    MSRP: $7,575.00
    $6,438.75
    Genuine Mercury GEAR HOUSING BASC, part number 8M0102795. Designed for use with compatible applications.
    8M0102795
    SKU:
    8M0102795
    Availability:
    Usually Ships within 24hours
    Weight:
    672.00 Ounces
    MSRP: $7,575.00
    $6,438.75
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $7,575.00
    $6,438.75
    Subtotal:
  • MERCURY OEM GC DSI 2.08 CXXL, 8M0143186

    Mercury Gear Case DSI 2.08 CXXL OEM 8M0143186

    Mercury

    MSRP: $7,550.00
    $6,417.50
    Genuine Mercury Gear Case DSI 2.08 CXXL, part number 8M0143186. Designed for use with compatible applications.
    8M0143186
    SKU:
    8M0143186
    Availability:
    Usually Ships within 24hours
    Weight:
    1,024.00 Ounces
    MSRP: $7,550.00
    $6,417.50
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $7,550.00
    $6,417.50
    Subtotal:
  • MERCURY OEM GC DSI 2.08 CL, 8M0236303

    Mercury Gear Case DSI 2.08 CL OEM 8M0236303

    Mercury

    MSRP: $7,530.00
    $6,400.50
    Genuine Mercury Gear Case DSI 2.08 CL, part number 8M0236303. Designed for use with compatible applications.
    8M0236303
    SKU:
    8M0236303
    Availability:
    Usually Ships within 24hours
    Weight:
    0.00 Ounces
    MSRP: $7,530.00
    $6,400.50
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $7,530.00
    $6,400.50
    Subtotal:
  • MERCURY OEM GC DSI 2.08 CL, 8M0138385

    Mercury Gear Case DSI 2.08 CL OEM 8M0138385

    Mercury

    MSRP: $7,530.00
    $6,400.50
    Genuine Mercury Gear Case DSI 2.08 CL, part number 8M0138385. Designed for use with compatible applications.
    8M0138385
    SKU:
    8M0138385
    Availability:
    Usually Ships within 24hours
    Weight:
    1,008.00 Ounces
    MSRP: $7,530.00
    $6,400.50
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $7,530.00
    $6,400.50
    Subtotal:
  • MERCURY OEM GC L6 1.75 L, 8M0236264

    Mercury Gear Case L6 1.75 L OEM 8M0236264

    Mercury

    MSRP: $7,521.45
    $6,393.23
    Genuine Mercury Gear Case L6 1.75 L, part number 8M0236264. Designed for use with compatible applications.
    8M0236264
    SKU:
    8M0236264
    Availability:
    Usually Ships within 24hours
    Weight:
    976.00 Ounces
    MSRP: $7,521.45
    $6,393.23
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $7,521.45
    $6,393.23
    Subtotal:
  • MERCURY OEM GC L6 4S L, 8M0236255

    Mercury Gear Case L6 4S L OEM 8M0236255

    Mercury

    MSRP: $7,521.45
    $6,393.23
    Genuine Mercury Gear Case L6 4S L, part number 8M0236255. Designed for use with compatible applications.
    8M0236255
    SKU:
    8M0236255
    Availability:
    Usually Ships within 24hours
    Weight:
    0.00 Ounces
    MSRP: $7,521.45
    $6,393.23
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $7,521.45
    $6,393.23
    Subtotal:
  • MERCURY OEM GC DSI 2.08 XXL, 8M0236304

    Mercury Gear Case DSI 2.08 XXL OEM 8M0236304

    Mercury

    MSRP: $7,430.00
    $6,315.50
    Genuine Mercury Gear Case DSI 2.08 XXL, part number 8M0236304. Designed for use with compatible applications.
    8M0236304
    SKU:
    8M0236304
    Availability:
    Usually Ships within 24hours
    Weight:
    1,136.00 Ounces
    MSRP: $7,430.00
    $6,315.50
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $7,430.00
    $6,315.50
    Subtotal:
  • MERCURY OEM GEAR HOUSE-BASIC, 8M0046174

    Mercury GEAR HOUSE-BASIC OEM 8M0046174

    Mercury

    MSRP: $7,415.00
    $6,302.75
    Genuine Mercury GEAR HOUSE-BASIC, part number 8M0046174. Designed for use with compatible applications.
    8M0046174
    SKU:
    8M0046174
    Availability:
    Usually Ships within 24hours
    Weight:
    976.00 Ounces
    MSRP: $7,415.00
    $6,302.75
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $7,415.00
    $6,302.75
    Subtotal:
  • MERCURY OEM GC DSI 2.08 L, 8M0236302

    Mercury Gear Case DSI 2.08 L OEM 8M0236302

    Mercury

    MSRP: $7,410.00
    $6,298.50
    Genuine Mercury Gear Case DSI 2.08 L, part number 8M0236302. Designed for use with compatible applications.
    8M0236302
    SKU:
    8M0236302
    Availability:
    Usually Ships within 24hours
    Weight:
    0.00 Ounces
    MSRP: $7,410.00
    $6,298.50
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $7,410.00
    $6,298.50
    Subtotal:
  • MERCURY OEM GC DSI 2.08 L, 8M0138384

    Mercury Gear Case DSI 2.08 L OEM 8M0138384

    Mercury

    MSRP: $7,410.00
    $6,298.50
    Genuine Mercury Gear Case DSI 2.08 L, part number 8M0138384. Designed for use with compatible applications.
    8M0138384
    SKU:
    8M0138384
    Availability:
    Usually Ships within 24hours
    Weight:
    1,008.00 Ounces
    MSRP: $7,410.00
    $6,298.50
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $7,410.00
    $6,298.50
    Subtotal:
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