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 60R 4S, 8M0171553

    Mercury Gear Case 60R 4S OEM 8M0171553

    Mercury

    MSRP: $3,033.99
    $2,578.89
    Genuine Mercury Gear Case 60R 4S, part number 8M0171553. Designed for use with compatible applications.
    8M0171553
    SKU:
    8M0171553
    Availability:
    Usually Ships within 24hours
    Weight:
    944.00 Ounces
    MSRP: $3,033.99
    $2,578.89
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $3,033.99
    $2,578.89
    Subtotal:
  • MERCURY OEM GEAR HOUSING COMP, 8M0121551

    Mercury GEAR HOUSING COMP OEM 8M0121551

    Mercury

    MSRP: $3,007.15
    $2,556.08
    Genuine Mercury GEAR HOUSING COMP, part number 8M0121551. Designed for use with compatible applications.
    8M0121551
    SKU:
    8M0121551
    Availability:
    Usually Ships within 24hours
    Weight:
    672.50 Ounces
    MSRP: $3,007.15
    $2,556.08
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $3,007.15
    $2,556.08
    Subtotal:
  • MERCURY OEM GC 4CYL 4S LG, 8M0086325

    Mercury Gear Case 4CYL 4S LG OEM 8M0086325

    Mercury

    MSRP: $3,007.15
    $2,556.08
    Genuine Mercury Gear Case 4CYL 4S LG, part number 8M0086325. Designed for use with compatible applications.
    8M0086325
    SKU:
    8M0086325
    Availability:
    Usually Ships within 24hours
    Weight:
    592.00 Ounces
    MSRP: $3,007.15
    $2,556.08
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $3,007.15
    $2,556.08
    Subtotal:
  • MERCURY OEM GC 40-60 4S LG, 9011G90

    Mercury Gear Case 40-60 4S LG OEM 9011G90

    Mercury

    MSRP: $3,007.15
    $2,556.08
    Genuine Mercury Gear Case 40-60 4S LG, part number 9011G90. Designed for use with compatible applications.
    9011G90
    SKU:
    9011G90
    Availability:
    Usually Ships within 24hours
    Weight:
    976.00 Ounces
    MSRP: $3,007.15
    $2,556.08
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $3,007.15
    $2,556.08
    Subtotal:
  • MERCURY OEM GC 40 3CYL 4S LG, 8M0086324

    Mercury Gear Case 40 3CYL 4S LG OEM 8M0086324

    Mercury

    MSRP: $3,007.15
    $2,556.08
    Genuine Mercury Gear Case 40 3CYL 4S LG, part number 8M0086324. Designed for use with compatible applications.
    8M0086324
    SKU:
    8M0086324
    Availability:
    Usually Ships within 24hours
    Weight:
    592.75 Ounces
    MSRP: $3,007.15
    $2,556.08
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $3,007.15
    $2,556.08
    Subtotal:
  • MERCURY OEM GC 40 EFI LG, 9760T44

    Mercury Gear Case 40 EFI LG OEM 9760T44

    Mercury

    MSRP: $3,007.15
    $2,556.08
    Genuine Mercury Gear Case 40 EFI LG, part number 9760T44. Designed for use with compatible applications.
    9760T44
    SKU:
    9760T44
    Availability:
    Usually Ships within 24hours
    Weight:
    592.00 Ounces
    MSRP: $3,007.15
    $2,556.08
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $3,007.15
    $2,556.08
    Subtotal:
  • MERCURY OEM GC 40 BF 4S LG, 9011G86

    Mercury Gear Case 40 BF 4S LG OEM 9011G86

    Mercury

    MSRP: $3,007.15
    $2,556.08
    Genuine Mercury Gear Case 40 BF 4S LG, part number 9011G86. Designed for use with compatible applications.
    9011G86
    SKU:
    9011G86
    Availability:
    Usually Ships within 24hours
    Weight:
    1,024.00 Ounces
    MSRP: $3,007.15
    $2,556.08
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $3,007.15
    $2,556.08
    Subtotal:
  • MERCURY OEM GC 30/40 4S 3C LG, 821306T17

    Mercury Gear Case 30/40 4S 3C LG OEM 821306T17

    Mercury

    MSRP: $3,007.15
    $2,556.08
    Genuine Mercury Gear Case 30/40 4S 3C LG, part number 821306T17. Designed for use with compatible applications.
    821306T17
    SKU:
    821306T17
    Availability:
    Usually Ships within 24hours
    Weight:
    464.00 Ounces
    MSRP: $3,007.15
    $2,556.08
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $3,007.15
    $2,556.08
    Subtotal:
  • MERCURY OEM GC 40/50 2S LG, 821306T28

    Mercury Gear Case 40/50 2S LG OEM 821306T28

    Mercury

    MSRP: $3,007.15
    $2,556.08
    Genuine Mercury Gear Case 40/50 2S LG, part number 821306T28. Designed for use with compatible applications.
    821306T28
    SKU:
    821306T28
    Availability:
    Usually Ships within 24hours
    Weight:
    480.00 Ounces
    MSRP: $3,007.15
    $2,556.08
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $3,007.15
    $2,556.08
    Subtotal:
  • MERCURY OEM GC 40/50 2S SHORT, 821306T26

    Mercury Gear Case 40/50 2S SHORT OEM 821306T26

    Mercury

    MSRP: $3,007.15
    $2,556.08
    Genuine Mercury Gear Case 40/50 2S SHORT, part number 821306T26. Designed for use with compatible applications.
    821306T26
    SKU:
    821306T26
    Availability:
    Usually Ships within 24hours
    Weight:
    480.00 Ounces
    MSRP: $3,007.15
    $2,556.08
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $3,007.15
    $2,556.08
    Subtotal:
  • MERCURY OEM GC 60 BF LL-BLK, 9011G94

    Mercury Gear Case 60 BF LL-BLK OEM 9011G94

    Mercury

    MSRP: $3,007.15
    $2,556.08
    Genuine Mercury Gear Case 60 BF LL-BLK, part number 9011G94. Designed for use with compatible applications.
    9011G94
    SKU:
    9011G94
    Availability:
    Usually Ships within 24hours
    Weight:
    1,024.00 Ounces
    MSRP: $3,007.15
    $2,556.08
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $3,007.15
    $2,556.08
    Subtotal:
  • MERCURY OEM GC 60 3CYL 2S LG, 9011G92

    Mercury Gear Case 60 3CYL 2S LG OEM 9011G92

    Mercury

    MSRP: $3,007.15
    $2,556.08
    Genuine Mercury Gear Case 60 3CYL 2S LG, part number 9011G92. Designed for use with compatible applications.
    9011G92
    SKU:
    9011G92
    Availability:
    Usually Ships within 24hours
    Weight:
    992.00 Ounces
    MSRP: $3,007.15
    $2,556.08
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $3,007.15
    $2,556.08
    Subtotal:
  • MERCURY OEM GC COMP 60 2S XL, 9760T28

    Mercury Gear Case COMP 60 2S XL OEM 9760T28

    Mercury

    MSRP: $3,007.15
    $2,556.08
    Genuine Mercury Gear Case COMP 60 2S XL, part number 9760T28. Designed for use with compatible applications.
    9760T28
    SKU:
    9760T28
    Availability:
    Usually Ships within 24hours
    Weight:
    560.00 Ounces
    MSRP: $3,007.15
    $2,556.08
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $3,007.15
    $2,556.08
    Subtotal:
  • MERCURY OEM GC COMP 60 2S LG, 9760T25

    Mercury Gear Case COMP 60 2S LG OEM 9760T25

    Mercury

    MSRP: $3,007.15
    $2,556.08
    Genuine Mercury Gear Case COMP 60 2S LG, part number 9760T25. Designed for use with compatible applications.
    9760T25
    SKU:
    9760T25
    Availability:
    Usually Ships within 24hours
    Weight:
    592.00 Ounces
    MSRP: $3,007.15
    $2,556.08
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $3,007.15
    $2,556.08
    Subtotal:
  • MERCURY OEM GC COMP 60 2S SH, 9760T23

    Mercury Gear Case COMP 60 2S SH OEM 9760T23

    Mercury

    MSRP: $3,007.15
    $2,556.08
    Genuine Mercury Gear Case COMP 60 2S SH, part number 9760T23. Designed for use with compatible applications.
    9760T23
    SKU:
    9760T23
    Availability:
    Usually Ships within 24hours
    Weight:
    544.00 Ounces
    MSRP: $3,007.15
    $2,556.08
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $3,007.15
    $2,556.08
    Subtotal:
  • MERCURY OEM GC 30/40 2S 2C LG, 821306T6

    Mercury Gear Case 30/40 2S 2C LG OEM 821306T6

    Mercury

    MSRP: $3,007.15
    $2,556.08
    Genuine Mercury Gear Case 30/40 2S 2C LG, part number 821306T6. Designed for use with compatible applications.
    821306T6
    SKU:
    821306T6
    Availability:
    Usually Ships within 24hours
    Weight:
    480.00 Ounces
    MSRP: $3,007.15
    $2,556.08
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $3,007.15
    $2,556.08
    Subtotal:
  • MERCURY OEM GC 30/40 2S SH, 821306T8

    Mercury Gear Case 30/40 2S SH OEM 821306T8

    Mercury

    MSRP: $3,007.15
    $2,556.08
    Genuine Mercury Gear Case 30/40 2S SH, part number 821306T8. Designed for use with compatible applications.
    821306T8
    SKU:
    821306T8
    Availability:
    Usually Ships within 24hours
    Weight:
    464.00 Ounces
    MSRP: $3,007.15
    $2,556.08
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $3,007.15
    $2,556.08
    Subtotal:
  • MERCURY OEM GC 30-50 4S BLK, 821306T24

    Mercury Gear Case 30-50 4S BLK OEM 821306T24

    Mercury

    MSRP: $3,007.15
    $2,556.08
    Genuine Mercury Gear Case 30-50 4S BLK, part number 821306T24. Designed for use with compatible applications.
    821306T24
    SKU:
    821306T24
    Availability:
    Usually Ships within 24hours
    Weight:
    544.00 Ounces
    MSRP: $3,007.15
    $2,556.08
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $3,007.15
    $2,556.08
    Subtotal:
  • MERCURY OEM SPACER-5 IN GC, 8M0177568

    Mercury SPACER-5 IN Gear Case OEM 8M0177568

    Mercury

    MSRP: $2,999.49
    $2,549.57
    Genuine Mercury SPACER-5 IN Gear Case, part number 8M0177568. Designed for use with compatible applications.
    8M0177568
    SKU:
    8M0177568
    Availability:
    Usually Ships within 24hours
    Weight:
    448.00 Ounces
    MSRP: $2,999.49
    $2,549.57
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $2,999.49
    $2,549.57
    Subtotal:
  • MERCURY OEM GEARCASE ASSY - XLONG CT GEN.5, 8M0118592

    Mercury GEARCASE ASSY - XLONG CT GEN.5 OEM 8M0118592

    Mercury

    MSRP: $2,971.43
    $2,525.72
    Genuine Mercury GEARCASE ASSY - XLONG CT GEN.5, part number 8M0118592. Designed for use with compatible applications.
    8M0118592
    SKU:
    8M0118592
    Availability:
    Usually Ships within 24hours
    Weight:
    0.00 Ounces
    MSRP: $2,971.43
    $2,525.72
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $2,971.43
    $2,525.72
    Subtotal:
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