Lower Units & Gearcases
Shop genuine Mercury lower units, complete gearcase assemblies, and replacement gearcase components for a variety of Mercury outboard applications. Find OEM gearcases and related components designed for proper fitment and reliable performance.
Mercury gearcase fitment can vary by engine serial number, model, shaft length, gear ratio, rotation, and application. If you're not sure which lower unit you need, visit our Lower Unit & Gearcase Guide to learn more about fitment and replacement options.
Need help confirming fitment? Have your engine serial number ready and contact our team at (727) 596-5929.
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On Sale
Mercury Gear Case XXL BLK OEM 8M0235823
Mercury
MSRP: $9,350.00Now: $8,246.70Was: $9,350.00Genuine Mercury Gear Case XXL BLK, part number 8M0235823. Designed for use with compatible applications. Replaces / supersedes Mercury part numbers: 8M0142312.8M0235823- SKU:
- 8M0235823
- Availability:
- Usually Ships within 24hours
- Weight:
- 1,280.00 Ounces
MSRP: $9,350.00Now: $8,246.70Was: $9,350.00 -
On Sale
Mercury Gear Case L SILV OEM 8M0235818
Mercury
MSRP: $9,350.00Now: $8,246.70Was: $9,350.00Genuine Mercury Gear Case L SILV, part number 8M0235818. Designed for use with compatible applications. Replaces / supersedes Mercury part numbers: 8M0142307, 8M0228015.8M0235818- SKU:
- 8M0235818
- Availability:
- Usually Ships within 24hours
- Weight:
- 1,584.00 Ounces
MSRP: $9,350.00Now: $8,246.70Was: $9,350.00 -
On Sale
Mercury Gear Case XL BLK OEM 8M0235819
Mercury
MSRP: $9,350.00Now: $8,246.70Was: $9,350.00Genuine Mercury Gear Case XL BLK, part number 8M0235819. Designed for use with compatible applications. Replaces / supersedes Mercury part numbers: 8M0142308.8M0235819- SKU:
- 8M0235819
- Availability:
- Usually Ships within 24hours
- Weight:
- 1,408.00 Ounces
MSRP: $9,350.00Now: $8,246.70Was: $9,350.00 -
On Sale
Mercury Gear Case CL SILVER OEM 8M0228026
Mercury
MSRP: $9,350.00Now: $8,246.70Was: $9,350.00Genuine Mercury Gear Case CL SILVER, part number 8M0228026. Designed for use with compatible applications. Replaces / supersedes Mercury part numbers: 8M0142328.8M0228026- SKU:
- 8M0228026
- Availability:
- Usually Ships within 24hours
- Weight:
- 1,568.00 Ounces
MSRP: $9,350.00Now: $8,246.70Was: $9,350.00 -
On Sale
Mercury Verado 1.85:1 Counter-Rotation Long Complete Gearcase 8M0117257
Mercury
MSRP: $9,350.00Now: $8,246.70Was: $9,350.00Mercury Verado 1.85:1 Counter-Rotation Long Complete Gearcase 8M0117257 is a genuine Mercury OEM complete gearcase assembly. This Verado gearcase has a 1.85:1 gear ratio, counter rotation, Long...8M0117257- SKU:
- 8M0117257
- Availability:
- Usually Ships within 24hours
- Weight:
- 1,296.00 Ounces
MSRP: $9,350.00Now: $8,246.70Was: $9,350.00 -
On Sale
Mercury Gear Case TM XL 1.75 OEM 8M0236165
Mercury
MSRP: $9,295.00Now: $8,196.30Was: $9,295.00Genuine Mercury Gear Case TM XL 1.75, part number 8M0236165. Designed for use with compatible applications. Replaces / supersedes Mercury part numbers: 840470T24, 840470T30.8M0236165- SKU:
- 8M0236165
- Availability:
- Usually Ships within 24hours
- Weight:
- 0.00 Ounces
MSRP: $9,295.00Now: $8,196.30Was: $9,295.00 -
On Sale
Mercury L6 Verado 1.75:1 X-Long Complete Gearcase (Silver) 8M0236239
Mercury
MSRP: $9,121.45Now: $8,045.10Was: $9,121.45Mercury L6 Verado 1.75:1 X-Long Complete Gearcase 8M0236239 is a genuine Mercury OEM complete gearcase assembly. This L6 Verado gearcase has a 1.75:1 gear ratio, standard rotation, X-Long shaft...8M0236239- SKU:
- 8M0236239
- Availability:
- Usually Ships within 24hours
- Weight:
- 1,472.00 Ounces
MSRP: $9,121.45Now: $8,045.10Was: $9,121.45 -
Mercury L6 Verado 1.85:1 X Long Complete Gearcase (Silver) 8M0228061
Mercury
MSRP: $9,121.45$7,753.23Mercury L6 Verado 1.85:1 X Long Complete Gearcase (Silver) 8M0228061 is a genuine Mercury Marine OEM complete gear housing assembly / lower unit for the compatible applications and configuration...8M0228061- SKU:
- 8M0228061
- Availability:
- Usually Ships within 24hours
- Weight:
- 0.00 Ounces
MSRP: $9,121.45$7,753.23 -
On Sale
Mercury L6 Verado 1.85:1 XX-Long Complete Gearcase (Silver) 8M0117243
Mercury
MSRP: $9,121.45Now: $8,045.10Was: $9,121.45Mercury L6 Verado 1.85:1 XX-Long Complete Gearcase 8M0117243 is a genuine Mercury OEM complete gearcase assembly. This L6 Verado gearcase has a 1.85:1 gear ratio, standard rotation, XX-Long shaft...8M0117243- SKU:
- 8M0117243
- Availability:
- Usually Ships within 24hours
- Weight:
- 1,216.00 Ounces
MSRP: $9,121.45Now: $8,045.10Was: $9,121.45 -
Mercury Complete Gearcase Torque Master L 1.75:1 8M0236154
Mercury
MSRP: $9,110.00$7,743.50Mercury Complete Gearcase Torque Master L 1.75:1 8M0236154 is a genuine Mercury Marine OEM complete gearcase / lower unit for the compatible application and configuration listed below.This complete...8M0236154- SKU:
- 8M0236154
- Availability:
- Usually Ships within 24hours
- Weight:
- 0.00 Ounces
MSRP: $9,110.00$7,743.50 -
On Sale
Mercury L6 Verado 1.75:1 Counter-Rotation Long Complete Gearcase (Silver) 8M0236232
Mercury
MSRP: $9,007.15Now: $7,944.30Was: $9,007.15Mercury L6 Verado 1.75:1 Counter-Rotation Long Complete Gearcase 8M0236232 is a genuine Mercury OEM complete gearcase assembly. This L6 Verado gearcase has a 1.75:1 gear ratio, counter rotation, Long...8M0236232- SKU:
- 8M0236232
- Availability:
- Usually Ships within 24hours
- Weight:
- 1,280.00 Ounces
MSRP: $9,007.15Now: $7,944.30Was: $9,007.15 -
On Sale
Mercury L6 Verado 300 HP 1.75:1 Counter-Rotation XX-Long Complete Gearcase 8M0236270
Mercury
MSRP: $8,892.85Now: $7,843.50Was: $8,892.85Mercury L6 Verado 300 HP 1.75:1 Counter-Rotation XX-Long Complete Gearcase 8M0236270 is a genuine Mercury OEM complete gearcase assembly for compatible 300 HP L6 Verado outboards. This gearcase has a...8M0236270- SKU:
- 8M0236270
- Availability:
- Usually Ships within 24hours
- Weight:
- 1,088.00 Ounces
MSRP: $8,892.85Now: $7,843.50Was: $8,892.85 -
On Sale
Mercury Gear Case CXL SIL OEM 8M0235809
Mercury
MSRP: $8,892.85Now: $7,843.50Was: $8,892.85Genuine Mercury Gear Case CXL SIL, part number 8M0235809. Designed for use with compatible applications. Replaces / supersedes Mercury part numbers: 8M0142298, 8M0228012.8M0235809- SKU:
- 8M0235809
- Availability:
- Usually Ships within 24hours
- Weight:
- 1,066.66 Ounces
MSRP: $8,892.85Now: $7,843.50Was: $8,892.85 -
On Sale
Mercury L6 Verado 300 HP 1.75:1 Counter-Rotation X-Long Complete Gearcase 8M0236269
Mercury
MSRP: $8,892.85Now: $7,843.50Was: $8,892.85Mercury L6 Verado 300 HP 1.75:1 Counter-Rotation X-Long Complete Gearcase 8M0236269 is a genuine Mercury OEM complete gearcase assembly for compatible 300 HP L6 Verado outboards. This gearcase has a...8M0236269- SKU:
- 8M0236269
- Availability:
- Usually Ships within 24hours
- Weight:
- 0.00 Ounces
MSRP: $8,892.85Now: $7,843.50Was: $8,892.85 -
On Sale
Mercury L6 Verado 300 HP 1.75:1 Counter-Rotation Long Complete Gearcase 8M0236267
Mercury
MSRP: $8,892.85Now: $7,843.50Was: $8,892.85Mercury L6 Verado 300 HP 1.75:1 Counter-Rotation Long Complete Gearcase 8M0236267 is a genuine Mercury OEM complete gearcase assembly for compatible 300 HP L6 Verado outboards. This gearcase has a 1...8M0236267- SKU:
- 8M0236267
- Availability:
- Usually Ships within 24hours
- Weight:
- 0.00 Ounces
MSRP: $8,892.85Now: $7,843.50Was: $8,892.85 -
On Sale
Mercury Gear Case XL SIL OEM 8M0235807
Mercury
MSRP: $8,892.85Now: $7,843.50Was: $8,892.85Genuine Mercury Gear Case XL SIL, part number 8M0235807. Designed for use with compatible applications. Replaces / supersedes Mercury part numbers: 8M0142296, 8M0228011.8M0235807- SKU:
- 8M0235807
- Availability:
- Usually Ships within 24hours
- Weight:
- 1,120.00 Ounces
MSRP: $8,892.85Now: $7,843.50Was: $8,892.85 -
On Sale
Mercury L6 Verado 1.85:1 Counter-Rotation XX-Long Complete Gearcase 8M0236260
Mercury
MSRP: $8,892.85Now: $7,843.50Was: $8,892.85Mercury L6 Verado 1.85:1 Counter-Rotation XX-Long Complete Gearcase 8M0236260 is a genuine Mercury OEM complete gearcase assembly for compatible 200-275 HP L6 Verado FourStroke outboards. This...8M0236260- SKU:
- 8M0236260
- Availability:
- Usually Ships within 24hours
- Weight:
- 1,088.00 Ounces
MSRP: $8,892.85Now: $7,843.50Was: $8,892.85 -
On Sale
Mercury Gear Case SP XL BLK OEM 8M0235814
Mercury
MSRP: $8,892.85Now: $7,843.50Was: $8,892.85Genuine Mercury Gear Case SP XL BLK, part number 8M0235814. Designed for use with compatible applications. Replaces / supersedes Mercury part numbers: 8M0142304.8M0235814- SKU:
- 8M0235814
- Availability:
- Usually Ships within 24hours
- Weight:
- 1,241.98 Ounces
MSRP: $8,892.85Now: $7,843.50Was: $8,892.85 -
On Sale
Mercury L6 Verado 1.75:1 Long Complete Gearcase (Silver) 8M0236238
Mercury
MSRP: $8,892.85Now: $7,843.50Was: $8,892.85Mercury L6 Verado 1.75:1 Long Complete Gearcase 8M0236238 is a genuine Mercury OEM complete gearcase assembly for compatible L6 Verado outboards. This gearcase has a 1.75:1 gear ratio, standard...8M0236238- SKU:
- 8M0236238
- Availability:
- Usually Ships within 24hours
- Weight:
- 1,440.00 Ounces
MSRP: $8,892.85Now: $7,843.50Was: $8,892.85 -
On Sale
Mercury Gear Case SP CXL BLK OEM 8M0235815
Mercury
MSRP: $8,892.85Now: $7,843.50Was: $8,892.85Genuine Mercury Gear Case SP CXL BLK, part number 8M0235815. Designed for use with compatible applications. Replaces / supersedes Mercury part numbers: 8M0142305.8M0235815- SKU:
- 8M0235815
- Availability:
- Usually Ships within 24hours
- Weight:
- 0.00 Ounces
MSRP: $8,892.85Now: $7,843.50Was: $8,892.85
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