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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Mercury Complete Gearcase Sport Master XX-Long 1.75:1 8M0236310
Mercury
MSRP: $14,670.00$12,469.50Mercury Complete Gearcase Sport Master XX-Long 1.75:1 8M0236310 is a genuine Mercury Marine OEM complete gearcase / lower unit for the compatible application and configuration listed below.This...8M0236310- SKU:
- 8M0236310
- Availability:
- Usually Ships within 24hours
- Weight:
- 0.00 Ounces
MSRP: $14,670.00$12,469.50 -
On Sale
Mercury Gear Case SM XXL 1.75 OEM 8M0236276
Mercury
MSRP: $14,595.00Now: $12,870.90Was: $14,595.00Genuine Mercury Gear Case SM XXL 1.75, part number 8M0236276. Designed for use with compatible applications. Replaces / supersedes Mercury part numbers: 8M0102785.8M0236276- SKU:
- 8M0236276
- Availability:
- Usually Ships within 24hours
- Weight:
- 0.00 Ounces
MSRP: $14,595.00Now: $12,870.90Was: $14,595.00Qty in Cart: 0Quantity:Price:MSRP: $14,595.00Now: $12,870.90Was: $14,595.00Subtotal: -
Mercury Sport Master 1.75:1 X-Long Counter-Rotation Complete Gearcase 8M0236278
Mercury
MSRP: $14,595.00$12,405.75Mercury Sport Master 1.75:1 X-Long Counter-Rotation Complete Gearcase 8M0236278 is a genuine Mercury Marine OEM complete gearcase / lower unit for the compatible application and configuration listed...8M0236278- SKU:
- 8M0236278
- Availability:
- Usually Ships within 24hours
- Weight:
- 0.00 Ounces
MSRP: $14,595.00$12,405.75 -
Mercury Complete Gearcase Sport Master 1.75:1 X Long 8M0236309
Mercury
MSRP: $14,570.00$12,384.50Mercury Complete Gearcase Sport Master 1.75:1 X Long 8M0236309 is a genuine Mercury Marine OEM complete gear housing assembly / lower unit for the compatible applications and configuration listed...8M0236309- SKU:
- 8M0236309
- Availability:
- Usually Ships within 24hours
- Weight:
- 0.00 Ounces
MSRP: $14,570.00$12,384.50 -
Mercury Complete Gearcase Sport Master X Long 1.75:1 Cambered 8M0236314
Mercury
MSRP: $14,570.00$12,384.50Mercury Complete Gearcase Sport Master X Long 1.75:1 Cambered 8M0236314 is a genuine Mercury Marine OEM complete gear housing assembly / lower unit for the compatible applications and configuration...8M0236314- SKU:
- 8M0236314
- Availability:
- Usually Ships within 24hours
- Weight:
- 0.00 Ounces
MSRP: $14,570.00$12,384.50 -
On Sale
Mercury Gear Case SM 1.75 XL OEM 8M0236308
Mercury
MSRP: $14,570.00Now: $12,845.70Was: $14,570.00Genuine Mercury Gear Case SM 1.75 XL, part number 8M0236308. Designed for use with compatible applications. Replaces / supersedes Mercury part numbers: 8M0146123.8M0236308- SKU:
- 8M0236308
- Availability:
- Usually Ships within 24hours
- Weight:
- 0.00 Ounces
MSRP: $14,570.00Now: $12,845.70Was: $14,570.00Qty in Cart: 0Quantity:Price:MSRP: $14,570.00Now: $12,845.70Was: $14,570.00Subtotal: -
Mercury Sport Master 1.75:1 XL Complete Gearcase 8M0102784
Mercury
MSRP: $14,490.00$12,316.50Mercury Sport Master Complete Gearcase 8M0102784 is an OEM high-performance gear housing assembly for select Mercury L6 Verado and Mercury Racing outboards. It features a 1.75:1 gear rati8M0102784- SKU:
- 8M0102784
- Availability:
- Usually Ships within 24hours
- Weight:
- 1,456.00 Ounces
MSRP: $14,490.00$12,316.50 -
On Sale
Mercury Gear Case SM L 1.75 CMBR OEM 8M0236313
Mercury
MSRP: $14,460.00Now: $12,751.20Was: $14,460.00Genuine Mercury Gear Case SM L 1.75 CMBR, part number 8M0236313. Designed for use with compatible applications. Replaces / supersedes Mercury part numbers: 8M0146128.8M0236313- SKU:
- 8M0236313
- Availability:
- Usually Ships within 24hours
- Weight:
- 0.00 Ounces
MSRP: $14,460.00Now: $12,751.20Was: $14,460.00Qty in Cart: 0Quantity:Price:MSRP: $14,460.00Now: $12,751.20Was: $14,460.00Subtotal: -
On Sale
Mercury Gear Case SM 1.75 OEM 8M0236306
Mercury
MSRP: $14,460.00Now: $12,751.20Was: $14,460.00Genuine Mercury Gear Case SM 1.75, part number 8M0236306. Designed for use with compatible applications. Replaces / supersedes Mercury part numbers: 8M0146120.8M0236306- SKU:
- 8M0236306
- Availability:
- Usually Ships within 24hours
- Weight:
- 1,360.00 Ounces
MSRP: $14,460.00Now: $12,751.20Was: $14,460.00Qty in Cart: 0Quantity:Price:MSRP: $14,460.00Now: $12,751.20Was: $14,460.00Subtotal: -
On Sale
Mercury Gear Case SM 1.75 CL OEM 8M0236307
Mercury
MSRP: $14,460.00Now: $12,751.20Was: $14,460.00Genuine Mercury Gear Case SM 1.75 CL, part number 8M0236307. Designed for use with compatible applications. Replaces / supersedes Mercury part numbers: 8M0146121.8M0236307- SKU:
- 8M0236307
- Availability:
- Usually Ships within 24hours
- Weight:
- 0.00 Ounces
MSRP: $14,460.00Now: $12,751.20Was: $14,460.00Qty in Cart: 0Quantity:Price:MSRP: $14,460.00Now: $12,751.20Was: $14,460.00Subtotal: -
On Sale
Mercury Gear Case SM 1.60 CL OEM 8M0236179
Mercury
MSRP: $14,455.00Now: $12,744.90Was: $14,455.00Genuine Mercury Gear Case SM 1.60 CL, part number 8M0236179. Designed for use with compatible applications. Replaces / supersedes Mercury part numbers: 8M0166391, 8M0189230.8M0236179- SKU:
- 8M0236179
- Availability:
- Usually Ships within 24hours
- Weight:
- 1,296.00 Ounces
MSRP: $14,455.00Now: $12,744.90Was: $14,455.00Qty in Cart: 0Quantity:Price:MSRP: $14,455.00Now: $12,744.90Was: $14,455.00Subtotal: -
On Sale
Mercury Gear Case SM 1.60 L CMB OEM 8M0236328
Mercury
MSRP: $14,455.00Now: $12,744.90Was: $14,455.00Genuine Mercury Gear Case SM 1.60 L CMB, part number 8M0236328. Designed for use with compatible applications. Replaces / supersedes Mercury part numbers: 8M0166389.8M0236328- SKU:
- 8M0236328
- Availability:
- Usually Ships within 24hours
- Weight:
- 0.00 Ounces
MSRP: $14,455.00Now: $12,744.90Was: $14,455.00Qty in Cart: 0Quantity:Price:MSRP: $14,455.00Now: $12,744.90Was: $14,455.00Subtotal: -
Mercury Complete Gearcase Sport Master 1.60:1 L 8M0236329
Mercury
MSRP: $14,455.00$12,286.75Mercury Complete Gearcase Sport Master 1.60:1 L 8M0236329 is a genuine Mercury Marine OEM complete gear housing assembly / lower unit for the compatible applications and configuration listed below...8M0236329- SKU:
- 8M0236329
- Availability:
- Usually Ships within 24hours
- Weight:
- 0.00 Ounces
MSRP: $14,455.00$12,286.75 -
On Sale
Mercury Gear Case SM 1.75 L RH C OEM 8M0236295
Mercury
MSRP: $14,445.00Now: $12,738.60Was: $14,445.00Genuine Mercury Gear Case SM 1.75 L RH C, part number 8M0236295. Designed for use with compatible applications. Replaces / supersedes Mercury part numbers: 8M0102789, 8M0137078.8M0236295- SKU:
- 8M0236295
- Availability:
- Usually Ships within 24hours
- Weight:
- 0.00 Ounces
MSRP: $14,445.00Now: $12,738.60Was: $14,445.00Qty in Cart: 0Quantity:Price:MSRP: $14,445.00Now: $12,738.60Was: $14,445.00Subtotal: -
On Sale
Mercury Gear Case SM XL 1.75 OEM 8M0236275
Mercury
MSRP: $14,360.00Now: $12,663.00Was: $14,360.00Genuine Mercury Gear Case SM XL 1.75, part number 8M0236275. Designed for use with compatible applications. Replaces / supersedes Mercury part numbers: 8M0102784.8M0236275- SKU:
- 8M0236275
- Availability:
- Usually Ships within 24hours
- Weight:
- 1,370.72 Ounces
MSRP: $14,360.00Now: $12,663.00Was: $14,360.00Qty in Cart: 0Quantity:Price:MSRP: $14,360.00Now: $12,663.00Was: $14,360.00Subtotal: -
Mercury Sport Master 1.75:1 Long Counter-Rotation Complete Gearcase 8M0236277
Mercury
MSRP: $14,360.00$12,206.00Mercury Sport Master 1.75:1 Long Counter-Rotation Complete Gearcase 8M0236277 is a genuine Mercury Marine OEM complete gearcase / lower unit for the compatible application and configuration listed...8M0236277- SKU:
- 8M0236277
- Availability:
- Usually Ships within 24hours
- Weight:
- 0.00 Ounces
MSRP: $14,360.00$12,206.00 -
On Sale
Mercury Gear Case 1.75CXXL LHCSM OEM 8M0137083
Mercury
MSRP: $14,155.00Now: $12,480.30Was: $14,155.00Genuine Mercury Gear Case 1.75CXXL LHCSM, part number 8M0137083. Designed for use with compatible applications. Replaces / supersedes Mercury part numbers: 8M0102794.8M0137083- SKU:
- 8M0137083
- Availability:
- Usually Ships within 24hours
- Weight:
- 1,344.00 Ounces
MSRP: $14,155.00Now: $12,480.30Was: $14,155.00Qty in Cart: 0Quantity:Price:MSRP: $14,155.00Now: $12,480.30Was: $14,155.00Subtotal: -
On Sale
Mercury Gear Case SM L RH 1.75 OEM 8M0236274
Mercury
MSRP: $14,125.00Now: $12,455.10Was: $14,125.00Genuine Mercury Gear Case SM L RH 1.75, part number 8M0236274. Designed for use with compatible applications. Replaces / supersedes Mercury part numbers: 8M0102783.8M0236274- SKU:
- 8M0236274
- Availability:
- Usually Ships within 24hours
- Weight:
- 1,488.00 Ounces
MSRP: $14,125.00Now: $12,455.10Was: $14,125.00Qty in Cart: 0Quantity:Price:MSRP: $14,125.00Now: $12,455.10Was: $14,125.00Subtotal: -
On Sale
Mercury Gear Case CXXL SM OEM 8M0146127
Mercury
MSRP: $14,085.00Now: $12,417.30Was: $14,085.00Genuine Mercury Gear Case CXXL SM, part number 8M0146127. Designed for use with compatible applications.8M0146127- SKU:
- 8M0146127
- Availability:
- Usually Ships within 24hours
- Weight:
- 1,328.00 Ounces
MSRP: $14,085.00Now: $12,417.30Was: $14,085.00Qty in Cart: 0Quantity:Price:MSRP: $14,085.00Now: $12,417.30Was: $14,085.00Subtotal: -
On Sale
Mercury Gear Case XXLONG SM OEM 8M0146126
Mercury
MSRP: $14,085.00Now: $12,417.30Was: $14,085.00Genuine Mercury Gear Case XXLONG SM, part number 8M0146126. Designed for use with compatible applications.8M0146126- SKU:
- 8M0146126
- Availability:
- Usually Ships within 24hours
- Weight:
- 1,344.00 Ounces
MSRP: $14,085.00Now: $12,417.30Was: $14,085.00Qty in Cart: 0Quantity:Price:MSRP: $14,085.00Now: $12,417.30Was: $14,085.00Subtotal:
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