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
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Mercury Gear Case 9.9-15-18 2S L OEM 8M0070904
Mercury
MSRP: $2,192.85$1,863.92Genuine Mercury Gear Case 9.9-15-18 2S L, part number 8M0070904. Designed for use with compatible applications.8M0070904- SKU:
- 8M0070904
- Availability:
- Usually Ships within 24hours
- Weight:
- 294.40 Ounces
MSRP: $2,192.85$1,863.92 -
Mercury GEARCASE-BASIC CT OEM 8M0227984
Mercury
MSRP: $2,075.49$1,764.17Genuine Mercury GEARCASE-BASIC CT, part number 8M0227984. Designed for use with compatible applications.8M0227984- SKU:
- 8M0227984
- Availability:
- Usually Ships within 24hours
- Weight:
- 448.00 Ounces
MSRP: $2,075.49$1,764.17 -
Mercury GEARCASE-BASIC ST OEM 8M0227985
Mercury
MSRP: $2,075.49$1,764.17Genuine Mercury GEARCASE-BASIC ST, part number 8M0227985. Designed for use with compatible applications.8M0227985- SKU:
- 8M0227985
- Availability:
- Usually Ships within 24hours
- Weight:
- 0.00 Ounces
MSRP: $2,075.49$1,764.17 -
Mercury GEARCASE-BASIC ST OEM 8M0145316
Mercury
MSRP: $2,075.49$1,764.17Genuine Mercury GEARCASE-BASIC ST, part number 8M0145316. Designed for use with compatible applications.8M0145316- SKU:
- 8M0145316
- Availability:
- Usually Ships within 24hours
- Weight:
- 452.00 Ounces
MSRP: $2,075.49$1,764.17 -
Mercury Gear Case GENII -BASIC OEM 815822A36
Mercury
MSRP: $1,942.99$1,651.54Genuine Mercury Gear Case GENII -BASIC, part number 815822A36. Designed for use with compatible applications.815822A36- SKU:
- 815822A36
- Availability:
- Usually Ships within 24hours
- Weight:
- 404.80 Ounces
MSRP: $1,942.99$1,651.54 -
Mercury Gear Case GENII -BASIC OEM 815822A30
Mercury
MSRP: $1,799.99$1,529.99Genuine Mercury Gear Case GENII -BASIC, part number 815822A30. Designed for use with compatible applications.815822A30- SKU:
- 815822A30
- Availability:
- Usually Ships within 24hours
- Weight:
- 384.00 Ounces
MSRP: $1,799.99$1,529.99 -
Mercury GEARCASE-BASIC OEM 8M0091538
Mercury
MSRP: $1,797.99$1,528.29Genuine Mercury GEARCASE-BASIC, part number 8M0091538. Designed for use with compatible applications.8M0091538- SKU:
- 8M0091538
- Availability:
- Usually Ships within 24hours
- Weight:
- 448.00 Ounces
MSRP: $1,797.99$1,528.29 -
Mercury GEAR HOUSING BLK OEM 9148T93
Mercury
MSRP: $1,791.49$1,522.77Genuine Mercury GEAR HOUSING BLK, part number 9148T93. Designed for use with compatible applications.9148T93- SKU:
- 9148T93
- Availability:
- Usually Ships within 24hours
- Weight:
- 449.60 Ounces
MSRP: $1,791.49$1,522.77 -
Mercury GEAR HOUSING OEM 9760T42
Mercury
MSRP: $1,749.99$1,487.49Genuine Mercury GEAR HOUSING, part number 9760T42. Designed for use with compatible applications.9760T42- SKU:
- 9760T42
- Availability:
- Usually Ships within 24hours
- Weight:
- 292.80 Ounces
MSRP: $1,749.99$1,487.49 -
Mercury Gear Case 15-20 4S S OEM 8M0172923
Mercury
MSRP: $1,721.45$1,463.23Genuine Mercury Gear Case 15-20 4S S, part number 8M0172923. Designed for use with compatible applications.8M0172923- SKU:
- 8M0172923
- Availability:
- Usually Ships within 24hours
- Weight:
- 320.00 Ounces
MSRP: $1,721.45$1,463.23 -
Mercury Gear Case 15-20 4S XL OEM 8M0172929
Mercury
MSRP: $1,721.45$1,463.23Genuine Mercury Gear Case 15-20 4S XL, part number 8M0172929. Designed for use with compatible applications.8M0172929- SKU:
- 8M0172929
- Availability:
- Usually Ships within 24hours
- Weight:
- 336.00 Ounces
MSRP: $1,721.45$1,463.23 -
Mercury Gear Case 15-20 4S S OEM 8M0163174
Mercury
MSRP: $1,721.45$1,463.23Genuine Mercury Gear Case 15-20 4S S, part number 8M0163174. Designed for use with compatible applications.8M0163174- SKU:
- 8M0163174
- Availability:
- Usually Ships within 24hours
- Weight:
- 304.00 Ounces
MSRP: $1,721.45$1,463.23 -
Mercury Gear Case 15/20 4S XL OEM 8M0070898
Mercury
MSRP: $1,721.45$1,463.23Genuine Mercury Gear Case 15/20 4S XL, part number 8M0070898. Designed for use with compatible applications.8M0070898- SKU:
- 8M0070898
- Availability:
- Usually Ships within 24hours
- Weight:
- 336.00 Ounces
MSRP: $1,721.45$1,463.23 -
Mercury Gear Case 15/20 4S LG OEM 8M0070897
Mercury
MSRP: $1,721.45$1,463.23Genuine Mercury Gear Case 15/20 4S LG, part number 8M0070897. Designed for use with compatible applications.8M0070897- SKU:
- 8M0070897
- Availability:
- Usually Ships within 24hours
- Weight:
- 320.00 Ounces
MSRP: $1,721.45$1,463.23 -
Mercury Gear Case 15/20 4S SH OEM 8M0070896
Mercury
MSRP: $1,721.45$1,463.23Genuine Mercury Gear Case 15/20 4S SH, part number 8M0070896. Designed for use with compatible applications.8M0070896- SKU:
- 8M0070896
- Availability:
- Usually Ships within 24hours
- Weight:
- 288.00 Ounces
MSRP: $1,721.45$1,463.23 -
Mercury Gear Case-15 4S 2.00 SP OEM 803729A10
Mercury
MSRP: $1,721.45$1,463.23Genuine Mercury Gear Case-15 4S 2.00 SP, part number 803729A10. Designed for use with compatible applications.803729A10- SKU:
- 803729A10
- Availability:
- Usually Ships within 24hours
- Weight:
- 336.00 Ounces
MSRP: $1,721.45$1,463.23 -
Mercury Gear Case 15 4S LG BLK OEM 8833T35
Mercury
MSRP: $1,721.45$1,463.23Genuine Mercury Gear Case 15 4S LG BLK, part number 8833T35. Designed for use with compatible applications.8833T35- SKU:
- 8833T35
- Availability:
- Usually Ships within 24hours
- Weight:
- 238.40 Ounces
MSRP: $1,721.45$1,463.23 -
Mercury DRIVESHAFT ASSY OEM 840979T1
Mercury
MSRP: $1,672.06$1,421.25Genuine Mercury DRIVESHAFT ASSY, part number 840979T1. Designed for use with compatible applications.840979T1- SKU:
- 840979T1
- Availability:
- Usually Ships within 24hours
- Weight:
- 84.00 Ounces
MSRP: $1,672.06$1,421.25 -
Mercury GEARCASE BASIC ASSY - NON COMPLETED OEM 8M0118594
Mercury
MSRP: $1,569.49$1,334.07Genuine Mercury GEARCASE BASIC ASSY - NON COMPLETED, part number 8M0118594. Designed for use with compatible applications.8M0118594- SKU:
- 8M0118594
- Availability:
- Usually Ships within 24hours
- Weight:
- 624.00 Ounces
MSRP: $1,569.49$1,334.07 -
Mercury GEAR HOUSING ASSEMBLY-STD NON COMPLETED OEM 893680T06
Mercury
MSRP: $1,522.49$1,294.12Genuine Mercury GEAR HOUSING ASSEMBLY-STD NON COMPLETED, part number 893680T06. Designed for use with compatible applications.893680T06- SKU:
- 893680T06
- Availability:
- Usually Ships within 24hours
- Weight:
- 262.40 Ounces
MSRP: $1,522.49$1,294.12
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