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 XL BLK OEM 8M0235806
Mercury
MSRP: $8,185.70Now: $7,219.80Was: $8,185.70Genuine Mercury Gear Case XL BLK, part number 8M0235806. Designed for use with compatible applications. Replaces / supersedes Mercury part numbers: 8M0142295.8M0235806- SKU:
- 8M0235806
- Availability:
- Usually Ships within 24hours
- Weight:
- 1,008.00 Ounces
MSRP: $8,185.70Now: $7,219.80Was: $8,185.70 -
On Sale
Mercury L6 Verado 1.85:1 X-Long Complete Gearcase 8M0236256
Mercury
MSRP: $8,185.70Now: $7,219.80Was: $8,185.70Mercury L6 Verado 1.85:1 X-Long Complete Gearcase 8M0236256 is a genuine Mercury OEM complete gearcase assembly for compatible 200-275 HP L6 Verado FourStroke outboards. This gearcase has a 1.85:1...8M0236256- SKU:
- 8M0236256
- Availability:
- Usually Ships within 24hours
- Weight:
- 1,008.00 Ounces
MSRP: $8,185.70Now: $7,219.80Was: $8,185.70 -
On Sale
Mercury Gear Case L4 4S LG OEM 8M0236261
Mercury
MSRP: $8,185.70Now: $7,219.80Was: $8,185.70Genuine Mercury Gear Case L4 4S LG, part number 8M0236261. Designed for use with compatible applications. Replaces / supersedes Mercury part numbers: 880686T23.8M0236261- SKU:
- 8M0236261
- Availability:
- Usually Ships within 24hours
- Weight:
- 1,120.00 Ounces
MSRP: $8,185.70Now: $7,219.80Was: $8,185.70 -
On Sale
Mercury Gear Case L BLK OEM 8M0235804
Mercury
MSRP: $8,185.70Now: $7,219.80Was: $8,185.70Genuine Mercury Gear Case L BLK, part number 8M0235804. Designed for use with compatible applications. Replaces / supersedes Mercury part numbers: 8M0142293.8M0235804- SKU:
- 8M0235804
- Availability:
- Usually Ships within 24hours
- Weight:
- 1,280.00 Ounces
MSRP: $8,185.70Now: $7,219.80Was: $8,185.70 -
On Sale
Mercury L6 Verado 300 HP 1.75:1 X-Long Complete Gearcase 8M0236265
Mercury
MSRP: $8,185.70Now: $7,219.80Was: $8,185.70Mercury L6 Verado 300 HP 1.75:1 X-Long Complete Gearcase 8M0236265 is a genuine Mercury OEM complete gearcase assembly for compatible 300 HP L6 Verado outboards. This gearcase has a 1.75:1 gear...8M0236265- SKU:
- 8M0236265
- Availability:
- Usually Ships within 24hours
- Weight:
- 1,120.00 Ounces
MSRP: $8,185.70Now: $7,219.80Was: $8,185.70 -
Mercury L6 Verado 1.75:1 XX-Long Standard-Rotation Complete Gearcase 880686T56
Mercury
MSRP: $8,185.70$6,957.85Mercury L6 Verado 1.75:1 XX-Long Standard-Rotation Complete Gearcase 880686T56 is a genuine Mercury Marine OEM complete gear housing assembly / lower unit for the compatible applications and...880686T56- SKU:
- 880686T56
- Availability:
- Usually Ships within 24hours
- Weight:
- 1,104.00 Ounces
MSRP: $8,185.70$6,957.85 -
On Sale
Mercury Gear Case L SILVER OEM 8M0235834
Mercury
MSRP: $7,971.45Now: $7,030.80Was: $7,971.45Genuine Mercury Gear Case L SILVER, part number 8M0235834. Designed for use with compatible applications. Replaces / supersedes Mercury part numbers: 8M0142323, 8M0228021.8M0235834- SKU:
- 8M0235834
- Availability:
- Usually Ships within 24hours
- Weight:
- 1,280.00 Ounces
MSRP: $7,971.45Now: $7,030.80Was: $7,971.45 -
On Sale
Mercury Gear Case L BLK OEM 8M0235817
Mercury
MSRP: $7,971.45Now: $7,030.80Was: $7,971.45Genuine Mercury Gear Case L BLK, part number 8M0235817. Designed for use with compatible applications. Replaces / supersedes Mercury part numbers: 8M0142306.8M0235817- SKU:
- 8M0235817
- Availability:
- Usually Ships within 24hours
- Weight:
- 1,264.00 Ounces
MSRP: $7,971.45Now: $7,030.80Was: $7,971.45 -
On Sale
Mercury 300 HP L6 Verado 1.85:1 Long Complete Gearcase 8M0117252
Mercury
MSRP: $7,971.45Now: $7,030.80Was: $7,971.45Mercury Complete Gearcase 8M0117252 is a genuine Mercury OEM replacement lower unit for select 300 HP L6 Verado outboards. This assembly is the standard-rotation, Long configuration8M0117252- SKU:
- 8M0117252
- Availability:
- Usually Ships within 24hours
- Weight:
- 1,200.00 Ounces
MSRP: $7,971.45Now: $7,030.80Was: $7,971.45 -
On Sale
Mercury Gear Case-BASIC CMBR WHT OEM 8M0225062
Mercury
MSRP: $7,915.00Now: $6,980.40Was: $7,915.00Genuine 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: $7,915.00Now: $6,980.40Was: $7,915.00 -
On Sale
Mercury Gear Case-BASIC CMBR WHT OEM 8M0225061
Mercury
MSRP: $7,915.00Now: $6,980.40Was: $7,915.00Genuine 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: $7,915.00Now: $6,980.40Was: $7,915.00 -
On Sale
Mercury GEAR HOUSING BASC OEM 8M0102795
Mercury
MSRP: $7,575.00Now: $6,678.00Was: $7,575.00Genuine 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: $7,575.00Now: $6,678.00Was: $7,575.00 -
On Sale
Mercury Gear Case DSI 2.08 CXXL OEM 8M0143186
Mercury
MSRP: $7,550.00Now: $6,659.10Was: $7,550.00Genuine 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: $7,550.00Now: $6,659.10Was: $7,550.00 -
On Sale
Mercury Gear Case DSI 2.08 CL OEM 8M0236303
Mercury
MSRP: $7,530.00Now: $6,640.20Was: $7,530.00Genuine 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: $7,530.00Now: $6,640.20Was: $7,530.00 -
On Sale
Mercury Gear Case DSI 2.08 CL OEM 8M0138385
Mercury
MSRP: $7,530.00Now: $6,640.20Was: $7,530.00Genuine 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: $7,530.00Now: $6,640.20Was: $7,530.00 -
On Sale
Mercury Gearcase Assembly, L6 1.75:1 8M0236264
Mercury
MSRP: $7,521.45Now: $6,633.90Was: $7,521.45Mercury Gearcase Assembly 8M0236264 is a genuine Mercury OEM replacement gearcase designed for compatible Mercury L6 outboards equipped with a 1.75:1 gear ratio. The gearcase houses the lower unit's...8M0236264- SKU:
- 8M0236264
- Availability:
- Usually Ships within 24hours
- Weight:
- 976.00 Ounces
MSRP: $7,521.45Now: $6,633.90Was: $7,521.45 -
On Sale
Mercury L6 FourStroke Complete Gearcase 8M0236255
Mercury
MSRP: $7,521.45Now: $6,633.90Was: $7,521.45Mercury Complete Gearcase Assembly 8M0236255 is an OEM replacement lower unit designed for select Mercury L6 FourStroke outboards. The Mercury designation GC L6 4S L identifies thi8M0236255- SKU:
- 8M0236255
- Availability:
- Usually Ships within 24hours
- Weight:
- 0.00 Ounces
MSRP: $7,521.45Now: $6,633.90Was: $7,521.45 -
On Sale
Mercury Gear Case DSI 2.08 XXL OEM 8M0236304
Mercury
MSRP: $7,430.00Now: $6,552.00Was: $7,430.00Genuine Mercury Gear Case DSI 2.08 XXL, part number 8M0236304. Designed for use with compatible applications. Replaces / supersedes Mercury part numbers: 8M0143185.8M0236304- SKU:
- 8M0236304
- Availability:
- Usually Ships within 24hours
- Weight:
- 1,136.00 Ounces
MSRP: $7,430.00Now: $6,552.00Was: $7,430.00 -
On Sale
Mercury GEAR HOUSE-BASIC OEM 8M0046174
Mercury
MSRP: $7,415.00Now: $6,539.40Was: $7,415.00Genuine 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: $7,415.00Now: $6,539.40Was: $7,415.00 -
Mercury Complete Gearcase DSI 2.08:1 L 8M0236302
Mercury
MSRP: $7,410.00$6,298.50Mercury Complete Gearcase DSI 2.08:1 L 8M0236302 is a genuine Mercury Marine OEM complete gear housing assembly / lower unit for the compatible applications and configuration listed below.This...8M0236302- SKU:
- 8M0236302
- Availability:
- Usually Ships within 24hours
- Weight:
- 0.00 Ounces
MSRP: $7,410.00$6,298.50
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