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 115 4S LG 2.07, 9011J2

    Mercury Gear Case 115 4S LG 2.07 OEM 9011J2

    Mercury

    MSRP: $3,185.70
    $2,707.85
    Genuine Mercury Gear Case 115 4S LG 2.07, part number 9011J2. Designed for use with compatible applications.
    9011J2
    SKU:
    9011J2
    Availability:
    Usually Ships within 24hours
    Weight:
    992.00 Ounces
    MSRP: $3,185.70
    $2,707.85
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $3,185.70
    $2,707.85
    Subtotal:
  • MERCURY OEM GC 2.5L XL 2.1, 9148T82

    Mercury Gear Case 2.5L XL 2.1 OEM 9148T82

    Mercury

    MSRP: $3,185.70
    $2,707.85
    Genuine Mercury Gear Case 2.5L XL 2.1, part number 9148T82. Designed for use with compatible applications.
    9148T82
    SKU:
    9148T82
    Availability:
    Usually Ships within 24hours
    Weight:
    944.00 Ounces
    MSRP: $3,185.70
    $2,707.85
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $3,185.70
    $2,707.85
    Subtotal:
  • MERCURY OEM GC 2.5L-L 2.0:1, 9148T81

    Mercury Gear Case 2.5L-L 2.0:1 OEM 9148T81

    Mercury

    MSRP: $3,185.70
    $2,707.85
    Genuine Mercury Gear Case 2.5L-L 2.0:1, part number 9148T81. Designed for use with compatible applications.
    9148T81
    SKU:
    9148T81
    Availability:
    Usually Ships within 24hours
    Weight:
    944.00 Ounces
    MSRP: $3,185.70
    $2,707.85
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $3,185.70
    $2,707.85
    Subtotal:
  • MERCURY OEM GC 2.5L XL 1.87, 9148T85

    Mercury Gear Case 2.5L XL 1.87 OEM 9148T85

    Mercury

    MSRP: $3,185.70
    $2,707.85
    Genuine Mercury Gear Case 2.5L XL 1.87, part number 9148T85. Designed for use with compatible applications.
    9148T85
    SKU:
    9148T85
    Availability:
    Usually Ships within 24hours
    Weight:
    888.00 Ounces
    MSRP: $3,185.70
    $2,707.85
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $3,185.70
    $2,707.85
    Subtotal:
  • MERCURY OEM GC 2.5 LG 1.87, 9148T84

    Mercury Gear Case 2.5 LG 1.87 OEM 9148T84

    Mercury

    MSRP: $3,185.70
    $2,707.85
    Genuine Mercury Gear Case 2.5 LG 1.87, part number 9148T84. Designed for use with compatible applications.
    9148T84
    SKU:
    9148T84
    Availability:
    Usually Ships within 24hours
    Weight:
    888.00 Ounces
    MSRP: $3,185.70
    $2,707.85
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $3,185.70
    $2,707.85
    Subtotal:
  • MERCURY OEM GC 115-125 XL BLK, 9011J9

    Mercury Gear Case 115-125 XL BLK OEM 9011J9

    Mercury

    MSRP: $3,185.70
    $2,707.85
    Genuine Mercury Gear Case 115-125 XL BLK, part number 9011J9. Designed for use with compatible applications.
    9011J9
    SKU:
    9011J9
    Availability:
    Usually Ships within 24hours
    Weight:
    1,040.00 Ounces
    MSRP: $3,185.70
    $2,707.85
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $3,185.70
    $2,707.85
    Subtotal:
  • MERCURY OEM GC 115-125 LG BLK, 9011J6

    Mercury Gear Case 115-125 LG BLK OEM 9011J6

    Mercury

    MSRP: $3,185.70
    $2,707.85
    Genuine Mercury Gear Case 115-125 LG BLK, part number 9011J6. Designed for use with compatible applications.
    9011J6
    SKU:
    9011J6
    Availability:
    Usually Ships within 24hours
    Weight:
    928.00 Ounces
    MSRP: $3,185.70
    $2,707.85
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $3,185.70
    $2,707.85
    Subtotal:
  • MERCURY OEM GC 75-90 XL BLK, 9011J23

    Mercury Gear Case 75-90 XL BLK OEM 9011J23

    Mercury

    MSRP: $3,185.70
    $2,707.85
    Genuine Mercury Gear Case 75-90 XL BLK, part number 9011J23. Designed for use with compatible applications.
    9011J23
    SKU:
    9011J23
    Availability:
    Usually Ships within 24hours
    Weight:
    1,024.00 Ounces
    MSRP: $3,185.70
    $2,707.85
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $3,185.70
    $2,707.85
    Subtotal:
  • MERCURY OEM GC 75-125 LG 2.33, 9011J15

    Mercury Gear Case 75-125 LG 2.33 OEM 9011J15

    Mercury

    MSRP: $3,185.70
    $2,707.85
    Genuine Mercury Gear Case 75-125 LG 2.33, part number 9011J15. Designed for use with compatible applications.
    9011J15
    SKU:
    9011J15
    Availability:
    Usually Ships within 24hours
    Weight:
    1,008.00 Ounces
    MSRP: $3,185.70
    $2,707.85
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $3,185.70
    $2,707.85
    Subtotal:
  • MERCURY OEM GC ALPH GENII C/R, 815822A52

    Mercury Gear Case ALPH GENII C/R OEM 815822A52

    Mercury

    MSRP: $3,164.29
    $2,689.65
    Genuine Mercury Gear Case ALPH GENII C/R, part number 815822A52. Designed for use with compatible applications.
    815822A52
    SKU:
    815822A52
    Availability:
    Usually Ships within 24hours
    Weight:
    800.00 Ounces
    MSRP: $3,164.29
    $2,689.65
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $3,164.29
    $2,689.65
    Subtotal:
  • MERCURY OEM GC ALPH GENII C/R, 815822A47

    Mercury Gear Case ALPH GENII C/R OEM 815822A47

    Mercury

    MSRP: $3,164.29
    $2,689.65
    Genuine Mercury Gear Case ALPH GENII C/R, part number 815822A47. Designed for use with compatible applications.
    815822A47
    SKU:
    815822A47
    Availability:
    Usually Ships within 24hours
    Weight:
    752.00 Ounces
    MSRP: $3,164.29
    $2,689.65
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $3,164.29
    $2,689.65
    Subtotal:
  • MERCURY OEM GC BASIC SILVR, 8M0228041

    Mercury Gear Case BASIC SILVR OEM 8M0228041

    Mercury

    MSRP: $3,157.49
    $2,683.87
    Genuine Mercury Gear Case BASIC SILVR, part number 8M0228041. Designed for use with compatible applications.
    8M0228041
    SKU:
    8M0228041
    Availability:
    Usually Ships within 24hours
    Weight:
    1,120.00 Ounces
    MSRP: $3,157.49
    $2,683.87
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $3,157.49
    $2,683.87
    Subtotal:
  • MERCURY OEM DRIVE PLATE ASSY., 8M0104792

    Mercury DRIVE PLATE ASSY. OEM 8M0104792

    Mercury

    MSRP: $3,156.43
    $2,682.97
    Genuine Mercury DRIVE PLATE ASSY., part number 8M0104792. Designed for use with compatible applications.
    8M0104792
    SKU:
    8M0104792
    Availability:
    Usually Ships within 24hours
    Weight:
    199.01 Ounces
    MSRP: $3,156.43
    $2,682.97
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $3,156.43
    $2,682.97
    Subtotal:
  • MERCURY OEM MOTOR LOWER UNIT, 8M0204513

    Mercury MOTOR LOWER UNIT OEM 8M0204513

    Mercury

    MSRP: $3,146.99
    $2,674.94
    Genuine Mercury MOTOR LOWER UNIT, part number 8M0204513. Designed for use with compatible applications.
    8M0204513
    SKU:
    8M0204513
    Availability:
    Usually Ships within 24hours
    Weight:
    212.70 Ounces
    MSRP: $3,146.99
    $2,674.94
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $3,146.99
    $2,674.94
    Subtotal:
  • MERCURY OEM GC 40 2S LG, 8M0127365

    Mercury Gear Case 40 2S LG OEM 8M0127365

    Mercury

    MSRP: $3,085.70
    $2,622.85
    Genuine Mercury Gear Case 40 2S LG, part number 8M0127365. Designed for use with compatible applications.
    8M0127365
    SKU:
    8M0127365
    Availability:
    Usually Ships within 24hours
    Weight:
    672.00 Ounces
    MSRP: $3,085.70
    $2,622.85
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $3,085.70
    $2,622.85
    Subtotal:
  • MERCURY OEM GC BASIC BLACK SP, 8M0145771

    Mercury Gear Case BASIC BLACK SP OEM 8M0145771

    Mercury

    MSRP: $3,079.49
    $2,617.57
    Genuine Mercury Gear Case BASIC BLACK SP, part number 8M0145771. Designed for use with compatible applications.
    8M0145771
    SKU:
    8M0145771
    Availability:
    Usually Ships within 24hours
    Weight:
    536.00 Ounces
    MSRP: $3,079.49
    $2,617.57
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $3,079.49
    $2,617.57
    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:
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