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 SM BASIC GREY, 8M0159711

    Mercury Gear Case SM BASIC GREY OEM 8M0159711

    Mercury

    MSRP: $6,450.00
    $5,482.50
    Genuine Mercury Gear Case SM BASIC GREY, part number 8M0159711. Designed for use with compatible applications.
    8M0159711
    SKU:
    8M0159711
    Availability:
    Usually Ships within 24hours
    Weight:
    656.00 Ounces
    MSRP: $6,450.00
    $5,482.50
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $6,450.00
    $5,482.50
    Subtotal:
  • MERCURY OEM GC SM BAS CMB C, 8M0187438

    Mercury Gear Case SM BAS CMB C OEM 8M0187438

    Mercury

    MSRP: $6,165.00
    $5,240.25
    Genuine Mercury Gear Case SM BAS CMB C, part number 8M0187438. Designed for use with compatible applications.
    8M0187438
    SKU:
    8M0187438
    Availability:
    Usually Ships within 24hours
    Weight:
    656.00 Ounces
    MSRP: $6,165.00
    $5,240.25
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $6,165.00
    $5,240.25
    Subtotal:
  • MERCURY OEM MOTOR LOWER UNIT, 8M0230338

    Mercury MOTOR LOWER UNIT OEM 8M0230338

    Mercury

    MSRP: $6,029.99
    $5,125.49
    Genuine Mercury MOTOR LOWER UNIT, part number 8M0230338. Designed for use with compatible applications.
    8M0230338
    SKU:
    8M0230338
    Availability:
    Usually Ships within 24hours
    Weight:
    0.00 Ounces
    MSRP: $6,029.99
    $5,125.49
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $6,029.99
    $5,125.49
    Subtotal:
  • MERCURY OEM MOTOR LOWER UNIT, 8M0230337

    Mercury MOTOR LOWER UNIT OEM 8M0230337

    Mercury

    MSRP: $6,018.99
    $5,116.14
    Genuine Mercury MOTOR LOWER UNIT, part number 8M0230337. Designed for use with compatible applications.
    8M0230337
    SKU:
    8M0230337
    Availability:
    Usually Ships within 24hours
    Weight:
    0.00 Ounces
    MSRP: $6,018.99
    $5,116.14
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $6,018.99
    $5,116.14
    Subtotal:
  • MERCURY OEM MOTOR LOWER UNIT, 8M0230336

    Mercury MOTOR LOWER UNIT OEM 8M0230336

    Mercury

    MSRP: $6,006.99
    $5,105.94
    Genuine Mercury MOTOR LOWER UNIT, part number 8M0230336. Designed for use with compatible applications.
    8M0230336
    SKU:
    8M0230336
    Availability:
    Usually Ships within 24hours
    Weight:
    0.00 Ounces
    MSRP: $6,006.99
    $5,105.94
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $6,006.99
    $5,105.94
    Subtotal:
  • MERCURY OEM GC SM CMB C SILV, 8M0174033

    Mercury Gear Case SM CMB C SILV OEM 8M0174033

    Mercury

    MSRP: $5,545.00
    $4,713.25
    Genuine Mercury Gear Case SM CMB C SILV, part number 8M0174033. Designed for use with compatible applications.
    8M0174033
    SKU:
    8M0174033
    Availability:
    Usually Ships within 24hours
    Weight:
    0.00 Ounces
    MSRP: $5,545.00
    $4,713.25
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $5,545.00
    $4,713.25
    Subtotal:
  • MERCURY OEM GEAR HOUSING-SM, 840306T3

    Mercury GEAR HOUSING-SM OEM 840306T3

    Mercury

    MSRP: $5,345.00
    $4,543.25
    Genuine Mercury GEAR HOUSING-SM, part number 840306T3. Designed for use with compatible applications.
    840306T3
    SKU:
    840306T3
    Availability:
    Usually Ships within 24hours
    Weight:
    640.00 Ounces
    MSRP: $5,345.00
    $4,543.25
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $5,345.00
    $4,543.25
    Subtotal:
  • MERCURY OEM GEAR HOUSING-SM, 840307T3

    Mercury GEAR HOUSING-SM OEM 840307T3

    Mercury

    MSRP: $5,345.00
    $4,543.25
    Genuine Mercury GEAR HOUSING-SM, part number 840307T3. Designed for use with compatible applications.
    840307T3
    SKU:
    840307T3
    Availability:
    Usually Ships within 24hours
    Weight:
    464.00 Ounces
    MSRP: $5,345.00
    $4,543.25
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $5,345.00
    $4,543.25
    Subtotal:
  • MERCURY OEM GEAR HOUSING ASSY, 8M0176565

    Mercury GEAR HOUSING ASSY OEM 8M0176565

    Mercury

    MSRP: $5,196.97
    $4,417.42
    Genuine Mercury GEAR HOUSING ASSY, part number 8M0176565. Designed for use with compatible applications.
    8M0176565
    SKU:
    8M0176565
    Availability:
    Usually Ships within 24hours
    Weight:
    186.88 Ounces
    MSRP: $5,196.97
    $4,417.42
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $5,196.97
    $4,417.42
    Subtotal:
  • MERCURY OEM CPO GC V8-175-CXL, 8M0159738

    Mercury CPO Gear Case V8-175-CXL OEM 8M0159738

    Mercury

    MSRP: $4,956.25
    $4,212.81
    Genuine Mercury CPO Gear Case V8-175-CXL, part number 8M0159738. Designed for use with compatible applications.
    8M0159738
    SKU:
    8M0159738
    Availability:
    Usually Ships within 24hours
    Weight:
    1,104.00 Ounces
    MSRP: $4,956.25
    $4,212.81
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $4,956.25
    $4,212.81
    Subtotal:
  • MERCURY OEM CPO GC V8-175-XXL, 8M0159739

    Mercury CPO Gear Case V8-175-XXL OEM 8M0159739

    Mercury

    MSRP: $4,956.25
    $4,212.81
    Genuine Mercury CPO Gear Case V8-175-XXL, part number 8M0159739. Designed for use with compatible applications.
    8M0159739
    SKU:
    8M0159739
    Availability:
    Usually Ships within 24hours
    Weight:
    1,168.00 Ounces
    MSRP: $4,956.25
    $4,212.81
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $4,956.25
    $4,212.81
    Subtotal:
  • MERCURY OEM CPO GC V8-175-CXX, 8M0159740

    Mercury CPO Gear Case V8-175-CXX OEM 8M0159740

    Mercury

    MSRP: $4,956.25
    $4,212.81
    Genuine Mercury CPO Gear Case V8-175-CXX, part number 8M0159740. Designed for use with compatible applications.
    8M0159740
    SKU:
    8M0159740
    Availability:
    Usually Ships within 24hours
    Weight:
    1,200.00 Ounces
    MSRP: $4,956.25
    $4,212.81
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $4,956.25
    $4,212.81
    Subtotal:
  • MERCURY OEM GC ASY-L SLVR CT, 8M0227982

    Mercury Gear Case ASY-L SLVR CT OEM 8M0227982

    Mercury

    MSRP: $4,950.00
    $4,207.50
    Genuine Mercury Gear Case ASY-L SLVR CT, part number 8M0227982. Designed for use with compatible applications.
    8M0227982
    SKU:
    8M0227982
    Availability:
    Usually Ships within 24hours
    Weight:
    956.80 Ounces
    MSRP: $4,950.00
    $4,207.50
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $4,950.00
    $4,207.50
    Subtotal:
  • MERCURY OEM GC ASY-XL SLVR CT, 8M0227983

    Mercury Gear Case ASY-XL SLVR CT OEM 8M0227983

    Mercury

    MSRP: $4,950.00
    $4,207.50
    Genuine Mercury Gear Case ASY-XL SLVR CT, part number 8M0227983. Designed for use with compatible applications.
    8M0227983
    SKU:
    8M0227983
    Availability:
    Usually Ships within 24hours
    Weight:
    944.00 Ounces
    MSRP: $4,950.00
    $4,207.50
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $4,950.00
    $4,207.50
    Subtotal:
  • MERCURY OEM GC ASSY-L SLVR ST, 8M0227980

    Mercury Gear Case ASSY-L SLVR ST OEM 8M0227980

    Mercury

    MSRP: $4,950.00
    $4,207.50
    Genuine Mercury Gear Case ASSY-L SLVR ST, part number 8M0227980. Designed for use with compatible applications.
    8M0227980
    SKU:
    8M0227980
    Availability:
    Usually Ships within 24hours
    Weight:
    976.00 Ounces
    MSRP: $4,950.00
    $4,207.50
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $4,950.00
    $4,207.50
    Subtotal:
  • MERCURY OEM GC ASY-XL SLVR ST, 8M0227981

    Mercury Gear Case ASY-XL SLVR ST OEM 8M0227981

    Mercury

    MSRP: $4,950.00
    $4,207.50
    Genuine Mercury Gear Case ASY-XL SLVR ST, part number 8M0227981. Designed for use with compatible applications.
    8M0227981
    SKU:
    8M0227981
    Availability:
    Usually Ships within 24hours
    Weight:
    1,040.00 Ounces
    MSRP: $4,950.00
    $4,207.50
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $4,950.00
    $4,207.50
    Subtotal:
  • MERCURY OEM GC BASIC SILVER, 8M0228040

    Mercury Gear Case BASIC SILVER OEM 8M0228040

    Mercury

    MSRP: $4,828.49
    $4,104.22
    Genuine Mercury Gear Case BASIC SILVER, part number 8M0228040. Designed for use with compatible applications.
    8M0228040
    SKU:
    8M0228040
    Availability:
    Usually Ships within 24hours
    Weight:
    1,424.00 Ounces
    MSRP: $4,828.49
    $4,104.22
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $4,828.49
    $4,104.22
    Subtotal:
  • MERCURY OEM GC BASIC SIL CAM, 8M0228042

    Mercury Gear Case BASIC SIL CAM OEM 8M0228042

    Mercury

    MSRP: $4,619.99
    $3,926.99
    Genuine Mercury Gear Case BASIC SIL CAM, part number 8M0228042. Designed for use with compatible applications.
    8M0228042
    SKU:
    8M0228042
    Availability:
    Usually Ships within 24hours
    Weight:
    512.00 Ounces
    MSRP: $4,619.99
    $3,926.99
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $4,619.99
    $3,926.99
    Subtotal:
  • MERCURY OEM GC BASIC SIL CAM, 8M0228043

    Mercury Gear Case BASIC SIL CAM OEM 8M0228043

    Mercury

    MSRP: $4,584.99
    $3,897.24
    Genuine Mercury Gear Case BASIC SIL CAM, part number 8M0228043. Designed for use with compatible applications.
    8M0228043
    SKU:
    8M0228043
    Availability:
    Usually Ships within 24hours
    Weight:
    512.00 Ounces
    MSRP: $4,584.99
    $3,897.24
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $4,584.99
    $3,897.24
    Subtotal:
  • MERCURY OEM GC-BASIC CHMBR CF, 8M0219311

    Mercury Gear Case-BASIC CHMBR CF OEM 8M0219311

    Mercury

    MSRP: $4,525.00
    $3,846.25
    Genuine Mercury Gear Case-BASIC CHMBR CF, part number 8M0219311. Designed for use with compatible applications.
    8M0219311
    SKU:
    8M0219311
    Availability:
    Usually Ships within 24hours
    Weight:
    0.00 Ounces
    MSRP: $4,525.00
    $3,846.25
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $4,525.00
    $3,846.25
    Subtotal:
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Prefer to Call? (727) 596-5929