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 5.44 XXL SILVR OEM 8M0236182
Mercury
MSRP: $10,880.00Now: $9,594.90Was: $10,880.00Genuine Mercury Gear Case 5.44 XXL SILVR, part number 8M0236182. Designed for use with compatible applications. Replaces / supersedes Mercury part numbers: 8M0199839.8M0236182- SKU:
- 8M0236182
- Availability:
- Usually Ships within 24hours
- Weight:
- 1,248.00 Ounces
MSRP: $10,880.00Now: $9,594.90Was: $10,880.00Qty in Cart: 0Quantity:Price:MSRP: $10,880.00Now: $9,594.90Was: $10,880.00Subtotal: -
Mercury Complete Gearcase 5.44 Counter-Rotation XX-Long Silver 8M0236186
Mercury
MSRP: $10,880.00$9,248.00Mercury Complete Gearcase 5.44 Counter-Rotation XX-Long Silver 8M0236186 is a genuine Mercury Marine OEM complete gearcase / lower unit for the compatible application and configuration listed below...8M0236186- SKU:
- 8M0236186
- Availability:
- Usually Ships within 24hours
- Weight:
- 0.00 Ounces
MSRP: $10,880.00$9,248.00 -
On Sale
Mercury Gear Case 5.44 L 1.60 WH OEM 8M0236330
Mercury
MSRP: $10,875.00Now: $9,588.60Was: $10,875.00Genuine Mercury Gear Case 5.44 L 1.60 WH, part number 8M0236330. Designed for use with compatible applications. Replaces / supersedes Mercury part numbers: 8M0159673, 8M0176848.8M0236330- SKU:
- 8M0236330
- Availability:
- Usually Ships within 24hours
- Weight:
- 656.00 Ounces
MSRP: $10,875.00Now: $9,588.60Was: $10,875.00Qty in Cart: 0Quantity:Price:MSRP: $10,875.00Now: $9,588.60Was: $10,875.00Subtotal: -
Mercury Complete Gearcase 5.44 L 1.6 Cambered 8M0236332
Mercury
MSRP: $10,875.00$9,243.75Mercury Complete Gearcase 5.44 L 1.6 Cambered 8M0236332 is a genuine Mercury Marine OEM complete gear housing assembly / lower unit for the compatible applications and configuration listed below.This...8M0236332- SKU:
- 8M0236332
- Availability:
- Usually Ships within 24hours
- Weight:
- 0.00 Ounces
MSRP: $10,875.00$9,243.75 -
Mercury Complete Gearcase 5.44 Counter Rotation Long Cambered W 8M0236158
Mercury
MSRP: $10,875.00$9,243.75Mercury Complete Gearcase 5.44 Counter Rotation Long Cambered W 8M0236158 is a genuine Mercury Marine OEM complete gear housing assembly / lower unit for the compatible applications and configuration...8M0236158- SKU:
- 8M0236158
- Availability:
- Usually Ships within 24hours
- Weight:
- 0.00 Ounces
MSRP: $10,875.00$9,243.75 -
On Sale
Mercury Gear Case 5.44 CL 1.60 W OEM 8M0236156
Mercury
MSRP: $10,875.00Now: $9,588.60Was: $10,875.00Genuine Mercury Gear Case 5.44 CL 1.60 W, part number 8M0236156. Designed for use with compatible applications. Replaces / supersedes Mercury part numbers: 8M0159674, 8M0176854, 8M0188158.8M0236156- SKU:
- 8M0236156
- Availability:
- Usually Ships within 24hours
- Weight:
- 1,856.10 Ounces
MSRP: $10,875.00Now: $9,588.60Was: $10,875.00Qty in Cart: 0Quantity:Price:MSRP: $10,875.00Now: $9,588.60Was: $10,875.00Subtotal: -
Mercury 5.44-Inch X-Long Counter-Rotation Complete Gearcase 8M0236185
Mercury
MSRP: $10,810.00$9,188.50Mercury 5.44-Inch X-Long Counter-Rotation Complete Gearcase 8M0236185 is a genuine Mercury Marine OEM complete gear housing assembly / lower unit for the compatible applications and configuration...8M0236185- SKU:
- 8M0236185
- Availability:
- Usually Ships within 24hours
- Weight:
- 0.00 Ounces
MSRP: $10,810.00$9,188.50 -
On Sale
Mercury Gear Case 5.44 XL SILVER OEM 8M0236181
Mercury
MSRP: $10,810.00Now: $9,531.90Was: $10,810.00Genuine Mercury Gear Case 5.44 XL SILVER, part number 8M0236181. Designed for use with compatible applications. Replaces / supersedes Mercury part numbers: 8M0199838.8M0236181- SKU:
- 8M0236181
- Availability:
- Usually Ships within 24hours
- Weight:
- 0.00 Ounces
MSRP: $10,810.00Now: $9,531.90Was: $10,810.00Qty in Cart: 0Quantity:Price:MSRP: $10,810.00Now: $9,531.90Was: $10,810.00Subtotal: -
Mercury 5.44-Inch Complete Gearcase 8M0236180
Mercury
MSRP: $10,740.00$9,129.00Mercury 5.44-Inch Complete Gearcase 8M0236180 is a genuine Mercury Marine OEM complete replacement lower unit for the compatible applications listed below.This is an assembled replacement gearcase,...8M0236180- SKU:
- 8M0236180
- Availability:
- Usually Ships within 24hours
- Weight:
- 1,840.00 Ounces
MSRP: $10,740.00$9,129.00 -
On Sale
Mercury Gear Case 5.44 CL SILVR OEM 8M0236184
Mercury
MSRP: $10,740.00Now: $9,468.90Was: $10,740.00Genuine Mercury Gear Case 5.44 CL SILVR, part number 8M0236184. Designed for use with compatible applications. Replaces / supersedes Mercury part numbers: 8M0199841.8M0236184- SKU:
- 8M0236184
- Availability:
- Usually Ships within 24hours
- Weight:
- 0.00 Ounces
MSRP: $10,740.00Now: $9,468.90Was: $10,740.00Qty in Cart: 0Quantity:Price:MSRP: $10,740.00Now: $9,468.90Was: $10,740.00Subtotal: -
On Sale
Mercury GEARCASE-BASIC OEM 879345T45
Mercury
MSRP: $10,636.57Now: $9,381.46Was: $10,636.57Genuine Mercury GEARCASE-BASIC, part number 879345T45. Designed for use with compatible applications. Replaces / supersedes Mercury part numbers: 879148T10.879345T45- SKU:
- 879345T45
- Availability:
- Usually Ships within 24hours
- Weight:
- 1,728.00 Ounces
MSRP: $10,636.57Now: $9,381.46Was: $10,636.57Qty in Cart: 0Quantity:Price:MSRP: $10,636.57Now: $9,381.46Was: $10,636.57Subtotal: -
On Sale
Mercury Gear Case SM 1.75 XL OEM 8M0236246
Mercury
MSRP: $10,505.00Now: $9,261.00Was: $10,505.00Genuine Mercury Gear Case SM 1.75 XL, part number 8M0236246. Designed for use with compatible applications.8M0236246- SKU:
- 8M0236246
- Availability:
- Usually Ships within 24hours
- Weight:
- 0.00 Ounces
MSRP: $10,505.00Now: $9,261.00Was: $10,505.00Qty in Cart: 0Quantity:Price:MSRP: $10,505.00Now: $9,261.00Was: $10,505.00Subtotal: -
On Sale
Mercury Gear Case 1.62 XL OEM 8M0236141
Mercury
MSRP: $10,505.00Now: $9,261.00Was: $10,505.00Genuine Mercury Gear Case 1.62 XL, part number 8M0236141. Designed for use with compatible applications. Replaces / supersedes Mercury part numbers: 840306T12, 840306T15.8M0236141- SKU:
- 8M0236141
- Availability:
- Usually Ships within 24hours
- Weight:
- 0.00 Ounces
MSRP: $10,505.00Now: $9,261.00Was: $10,505.00Qty in Cart: 0Quantity:Price:MSRP: $10,505.00Now: $9,261.00Was: $10,505.00Subtotal: -
On Sale
Mercury GEAR HOUSING OEM 8M0131315
Mercury
MSRP: $10,490.00Now: $9,248.40Was: $10,490.00Genuine Mercury GEAR HOUSING, part number 8M0131315. Designed for use with compatible applications. Replaces / supersedes Mercury part numbers: 840470A15, 840470T23, 842004T07, 859399A26, 859399T26.8M0131315- SKU:
- 8M0131315
- Availability:
- Usually Ships within 24hours
- Weight:
- 0.00 Ounces
MSRP: $10,490.00Now: $9,248.40Was: $10,490.00Qty in Cart: 0Quantity:Price:MSRP: $10,490.00Now: $9,248.40Was: $10,490.00Subtotal: -
On Sale
Mercury GEAR HOUSING OEM 842004T03
Mercury
MSRP: $10,480.00Now: $9,242.10Was: $10,480.00Genuine Mercury GEAR HOUSING, part number 842004T03. Designed for use with compatible applications. Replaces / supersedes Mercury part numbers: 840470T26.842004T03- SKU:
- 842004T03
- Availability:
- Usually Ships within 24hours
- Weight:
- 1,008.00 Ounces
MSRP: $10,480.00Now: $9,242.10Was: $10,480.00Qty in Cart: 0Quantity:Price:MSRP: $10,480.00Now: $9,242.10Was: $10,480.00Subtotal: -
On Sale
Mercury Gear Case 5.44 CXXL 1.6 OEM 8M0236168
Mercury
MSRP: $10,410.00Now: $9,179.10Was: $10,410.00Genuine Mercury Gear Case 5.44 CXXL 1.6, part number 8M0236168. Designed for use with compatible applications. Replaces / supersedes Mercury part numbers: 8M0159660, 8M0176876, 8M0188169.8M0236168- SKU:
- 8M0236168
- Availability:
- Usually Ships within 24hours
- Weight:
- 1,712.00 Ounces
MSRP: $10,410.00Now: $9,179.10Was: $10,410.00Qty in Cart: 0Quantity:Price:MSRP: $10,410.00Now: $9,179.10Was: $10,410.00Subtotal: -
Mercury Complete Gearcase 5.44 XX-Long Long 1.6 W 8M0236149
Mercury
MSRP: $10,410.00$8,848.50Mercury Complete Gearcase 5.44 XX-Long Long 1.6 W 8M0236149 is a genuine Mercury Marine OEM complete gear housing assembly / lower unit for the compatible applications and configuration listed below...8M0236149- SKU:
- 8M0236149
- Availability:
- Usually Ships within 24hours
- Weight:
- 1,280.00 Ounces
MSRP: $10,410.00$8,848.50 -
On Sale
Mercury Gear Case 5.44 XXL 1.6W OEM 8M0236151
Mercury
MSRP: $10,410.00Now: $9,179.10Was: $10,410.00Genuine Mercury Gear Case 5.44 XXL 1.6W, part number 8M0236151. Designed for use with compatible applications. Replaces / supersedes Mercury part numbers: 8M0159657, 8M0176871.8M0236151- SKU:
- 8M0236151
- Availability:
- Usually Ships within 24hours
- Weight:
- 1,200.00 Ounces
MSRP: $10,410.00Now: $9,179.10Was: $10,410.00Qty in Cart: 0Quantity:Price:MSRP: $10,410.00Now: $9,179.10Was: $10,410.00Subtotal: -
Mercury Complete Gearcase 5.44 Counter-Rotation XX-Long 1.6S 8M0236166
Mercury
MSRP: $10,410.00$8,848.50Mercury Complete Gearcase 5.44 Counter-Rotation XX-Long 1.6S 8M0236166 is a genuine Mercury Marine OEM complete gearcase / lower unit for the compatible application and configuration listed below...8M0236166- SKU:
- 8M0236166
- Availability:
- Usually Ships within 24hours
- Weight:
- 1,296.00 Ounces
MSRP: $10,410.00$8,848.50 -
Mercury Complete Gearcase 5.44 Counter Rotation XX Long 1.6 8M0188169
Mercury
MSRP: $10,410.00$8,848.50Mercury Complete Gearcase 5.44 Counter Rotation XX Long 1.6 8M0188169 is a genuine Mercury Marine OEM complete gear housing assembly / lower unit for the compatible applications and configuration...8M0188169- SKU:
- 8M0188169
- Availability:
- Usually Ships within 24hours
- Weight:
- 1,216.00 Ounces
MSRP: $10,410.00$8,848.50
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