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-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 -
Mercury Gear Case 9.9-18 2S SH OEM 8M0070903
Mercury
MSRP: $1,500.00$1,275.00Genuine Mercury Gear Case 9.9-18 2S SH, part number 8M0070903. Designed for use with compatible applications.8M0070903- SKU:
- 8M0070903
- Availability:
- Usually Ships within 24hours
- Weight:
- 283.20 Ounces
MSRP: $1,500.00$1,275.00 -
Mercury Gear Case 15 4S-S-BLK OEM 8833T33
Mercury
MSRP: $1,500.00$1,275.00Genuine Mercury Gear Case 15 4S-S-BLK, part number 8833T33. Designed for use with compatible applications.8833T33- SKU:
- 8833T33
- Availability:
- Usually Ships within 24hours
- Weight:
- 203.20 Ounces
MSRP: $1,500.00$1,275.00 -
Mercury Gear Case-10/15 B 2.00 L OEM 8833T15
Mercury
MSRP: $1,500.00$1,275.00Genuine Mercury Gear Case-10/15 B 2.00 L, part number 8833T15. Designed for use with compatible applications.8833T15- SKU:
- 8833T15
- Availability:
- Usually Ships within 24hours
- Weight:
- 272.00 Ounces
MSRP: $1,500.00$1,275.00 -
Mercury Gear Case-10/15 B 2.00 OEM 8833T13
Mercury
MSRP: $1,500.00$1,275.00Genuine Mercury Gear Case-10/15 B 2.00, part number 8833T13. Designed for use with compatible applications.8833T13- SKU:
- 8833T13
- Availability:
- Usually Ships within 24hours
- Weight:
- 243.20 Ounces
MSRP: $1,500.00$1,275.00 -
Mercury Gear Case 6-9.8 2S SH OEM 8M0172380
Mercury
MSRP: $1,421.45$1,208.23Genuine Mercury Gear Case 6-9.8 2S SH, part number 8M0172380. Designed for use with compatible applications.8M0172380- SKU:
- 8M0172380
- Availability:
- Usually Ships within 24hours
- Weight:
- 208.00 Ounces
MSRP: $1,421.45$1,208.23 -
Mercury Gear Case UL 9.9/15 OEM 8M0158696
Mercury
MSRP: $1,257.15$1,068.58Genuine Mercury Gear Case UL 9.9/15, part number 8M0158696. Designed for use with compatible applications.8M0158696- SKU:
- 8M0158696
- Availability:
- Usually Ships within 24hours
- Weight:
- 0.00 Ounces
MSRP: $1,257.15$1,068.58 -
Mercury Gear Case HSG COMP INT L OEM 8M0075064
Mercury
MSRP: $1,257.15$1,068.58Genuine Mercury Gear Case HSG COMP INT L, part number 8M0075064. Designed for use with compatible applications.8M0075064- SKU:
- 8M0075064
- Availability:
- Usually Ships within 24hours
- Weight:
- 0.00 Ounces
MSRP: $1,257.15$1,068.58 -
Mercury Gear Case BASIC 40 2S OEM 8M0127360
Mercury
MSRP: $1,188.99$1,010.64Genuine Mercury Gear Case BASIC 40 2S, part number 8M0127360. Designed for use with compatible applications.8M0127360- SKU:
- 8M0127360
- Availability:
- Usually Ships within 24hours
- Weight:
- 224.00 Ounces
MSRP: $1,188.99$1,010.64 -
Mercury DRIVESHAFT HOUSING ASSY-NON COMPLETED-JET OEM 852421T09
Mercury
MSRP: $1,174.49$998.32Genuine Mercury DRIVESHAFT HOUSING ASSY-NON COMPLETED-JET, part number 852421T09. Designed for use with compatible applications.852421T09- SKU:
- 852421T09
- Availability:
- Usually Ships within 24hours
- Weight:
- 294.40 Ounces
MSRP: $1,174.49$998.32 -
Mercury Gear Case 8/9.9 4S UL OEM 8M0135933
Mercury
MSRP: $1,121.45$953.23Genuine Mercury Gear Case 8/9.9 4S UL, part number 8M0135933. Designed for use with compatible applications.8M0135933- SKU:
- 8M0135933
- Availability:
- Usually Ships within 24hours
- Weight:
- 272.00 Ounces
MSRP: $1,121.45$953.23 -
Mercury Gear Case 8/9.9 4S XL OEM 8M0070895
Mercury
MSRP: $1,121.45$953.23Genuine Mercury Gear Case 8/9.9 4S XL, part number 8M0070895. Designed for use with compatible applications.8M0070895- SKU:
- 8M0070895
- Availability:
- Usually Ships within 24hours
- Weight:
- 336.00 Ounces
MSRP: $1,121.45$953.23 -
Mercury 5-Inch Black Conversion Kit 12092A13
Mercury
MSRP: $1,120.99$952.84The Mercury Conversion Kit (5-Inch Black) 12092A13 is a genuine Mercury OEM conversion kit designed for select Mercury and MerCruiser applications. This conversion kit includes the components required for 5-inch black conversion applications and is...12092A13- SKU:
- 12092A13
- Availability:
- Usually Ships within 24hours
- Weight:
- 374.00 Ounces
MSRP: $1,120.99$952.84 -
Mercury DRIVESHAFT ASSY OEM 8M0218215
Mercury
MSRP: $1,074.99$913.74Genuine Mercury DRIVESHAFT ASSY, part number 8M0218215. Designed for use with compatible applications.8M0218215- SKU:
- 8M0218215
- Availability:
- Usually Ships within 24hours
- Weight:
- 104.70 Ounces
MSRP: $1,074.99$913.74 -
Mercury GEARCASE TOOL KIT OEM 8M0130705
Mercury
MSRP: $1,030.99$876.34Genuine Mercury GEARCASE TOOL KIT, part number 8M0130705. Designed for use with compatible applications.8M0130705- SKU:
- 8M0130705
- Availability:
- Usually Ships within 24hours
- Weight:
- 121.50 Ounces
MSRP: $1,030.99$876.34 -
Mercury Gear Case 8/9.9 4S LONG OEM 8M0229976
Mercury
MSRP: $964.49$819.82Genuine Mercury Gear Case 8/9.9 4S LONG, part number 8M0229976. Designed for use with compatible applications.8M0229976- SKU:
- 8M0229976
- Availability:
- Usually Ships within 24hours
- Weight:
- 256.00 Ounces
MSRP: $964.49$819.82
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