Mercury Replacement 3 & 4 Cylinder Lowers

Replaces most Mercury 3- and 4-cylinder 2-stroke engines (1987 and newer, 70–125 HP). Also compatible with most Mercury 4-stroke engines (75–115 HP, below serial #OT801000). Note: This unit will not replace a 3-jaw lower unit unless you also change the shift shaft in the midsection.

Outboard Lowers

Mercury Replacement 3 & 4 Cylinder Lowers - MarinePartsCo
Mercury Replacement 3 & 4 Cylinder Lowers
Mercury Replacement 2.0, 2.4, 2.5L Lowers - MarinePartsCo
Mercury Replacement 2.0, 2.4, 2.5L Lowers
Mercury Replacement 3.0 Liter Lowers - MarinePartsCo
Mercury Replacement 3.0 Liter Lowers
Mercury - 3.0L V6, 2.6L I6 and 1.7L I4 (Verado Style) - MarinePartsCo
Replacement - 3.0L V6, 2.6L I6 and 1.7L I4 (Verado Style)
Torque Master & Torque Master 2 Lower Units
Mercury Outboard Lower Unit | 2.33 | 25" | 4 Stroke | 90 - 205 - B25S - MarinePartsCo - 90 - 205 - B25S
Mercury Replacement Lower Unit | 2.33 | 20" | DFI | 90-205-B20D
SEI Marine MPN : 90-205-B20D
$1,195.00 USD -100%
$1,195.00 USD
Mercury Outboard Lower Unit | 2.33 | 25" | 4 Stroke | 90 - 205 - B25S - MarinePartsCo - 90 - 205 - B25S
Mercury Replacement Lower Unit | 2.33 | 20" | 2 Stroke | 90-205-B20
SEI Marine MPN : 90-205-B20
$1,195.00 USD -100%
$1,195.00 USD
Mercury Outboard Lower Unit | 2.33 | 25" | 4 Stroke | 90 - 205 - B25S - MarinePartsCo - 90 - 205 - B25S
Mercury Replacement Lower Unit | 2.07 | 25" | 4 Stroke | 90-205-A25F
SEI Marine MPN : 90-205-A25F
$1,195.00 USD -100%
$1,195.00 USD
Mercury Outboard Lower Unit | 2.33 | 25" | 4 Stroke | 90 - 205 - B25S - MarinePartsCo - 90 - 205 - B25S
Mercury Replacement Lower Unit | 2.07 | 25" | DFI | 90-205-A25D
SEI Marine MPN : 90-205-A25D
$1,195.00 USD -100%
$1,195.00 USD
Mercury Outboard Lower Unit | 2.33 | 25" | 4 Stroke | 90 - 205 - B25S - MarinePartsCo - 90 - 205 - B25S
Mercury Replacement Lower Unit | 2.07 | 25" | 2 Stroke | 90-205-A25
SEI Marine MPN : 90-205-A25
$1,195.00 USD -100%
$1,195.00 USD
Mercury Outboard Lower Unit | 2.33 | 25" | 4 Stroke | 90 - 205 - B25S - MarinePartsCo - 90 - 205 - B25S
Mercury Replacement Lower Unit | 2.07 | 20" | 4 Stroke | 90-205-A20F
SEI Marine MPN : 90-205-A20F
$1,195.00 USD -100%
$1,195.00 USD
Mercury Outboard Lower Unit | 2.33 | 25" | 4 Stroke | 90 - 205 - B25S - MarinePartsCo - 90 - 205 - B25S
Mercury Replacement Lower Unit | 2.07 | 20" | DFI | 90-205-A20D
SEI Marine MPN : 90-205-A20D
$1,195.00 USD -100%
$1,195.00 USD
Mercury Outboard Lower Unit | 2.33 | 25" | 4 Stroke | 90 - 205 - B25S - MarinePartsCo - 90 - 205 - B25S
Mercury Replacement Lower Unit | 2.07 | 20" | 2 Stroke | 90-205-A20
SEI Marine MPN : 90-205-A20
$1,195.00 USD -100%
$1,195.00 USD
Mercury Outboard Lower Unit | 2.33 | 25" | 4 Stroke | 90 - 205 - B25S - MarinePartsCo - 90 - 205 - B25S
Mercury Replacement Lower Unit | ALL | ALL | 2 Stroke | 90-205
SEI Marine MPN : 90-205
$1,195.00 USD -100%
$1,195.00 USD

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Built to OEM specifications, we only sell the highest quality replacement parts

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