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New Yamaha 200–250HP V6 76° (1990–2019) Replacement Lower Unit | Aftermarket | Standard Rotation | Fits 20″, 25″ & 30″ Shafts | 3-Year Warranty
- $1,199.00
$1,330.89- $1,199.00
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New Yamaha 200–250HP V6 76° (1990–2019) Replacement Lower Unit – Aftermarket – Standard Rotation – Fits 20″, 25″ & 30″ Shafts – 3-Year Warranty Upgrade or replace your Yamaha outboard’s lower unit with this SEI 90-416 Standard Rotation Gearcase, engineered for Yamaha V6 76°...- $1,199.00
$1,330.89- $1,199.00
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New Yamaha 150–200HP 2/4-Stroke (1984–2024) Replacement Lower Unit | Aftermarket | Standard Rotation | Fits 20″ & 25″ Shafts | 3-Year Warranty
- $1,199.00
$1,330.89- $1,199.00
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Upgrade your Yamaha 150–200HP outboard with the reliable SEI 90-416 aftermarket lower unit.Built to match OEM performance, this unit fits both 2-stroke and 4-stroke engines from 1984–2024.It’s a fully assembled, direct-fit replacement with a 3-year warranty—ready to install with no modifications needed. Key Features...- $1,199.00
$1,330.89- $1,199.00
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New Yamaha 115–130HP 2/4-Stroke (1984–2014) Replacement Lower Unit | Aftermarket | Standard Rotation | Fits 20″ & 25″ Shafts | 3-Year Warranty
- $1,199.00
$1,330.89- $1,199.00
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The SEI 90-405 Yamaha 115–130HP lower unit is a brand-new, high-quality aftermarket replacement designed for both 2-stroke and 4-stroke Yamaha outboard engines from 1984 to 2014. Built to OEM specifications, it provides smooth shifting, durable performance, and dependable reliability. Available in 20″ and 25″...- $1,199.00
$1,330.89- $1,199.00
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New Yamaha 75–100HP 2-/4-Stroke (1984–2017) Replacement Lower Unit – Aftermarket | Standard Rotation | Fits 20″ & 25″ Shafts | 2.0 & 2.3 Gear Ratios | 3-Year Warranty SKU: ST-90-404-B25F
MPN: 90-404- $1,199.00
$1,330.89- $1,199.00
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Brand New Yamaha 75–100HP Replacement Lower Unit (2/4-Stroke | 1984–2017) Enhance the performance of your Yamaha 75–100HP outboard with this high-quality aftermarket replacement lower unit from SEI Marine Products. Engineered for precision, durability, and a perfect OEM fit — this unit is the ideal...- $1,199.00
$1,330.89- $1,199.00
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New Yamaha 200–250HP 2/4-Stroke (1990–2019) Replacement Lower Unit | Aftermarket | Counter Rotation | Fits 25″ & 30″ Shafts | 3-Year Warranty
- $1,399.00
$1,552.89- $1,399.00
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Replace or upgrade your Yamaha outboard with this premium aftermarket counter-rotation lower unit designed for Yamaha 200HP, 225HP, and select 250HP V6 models (1990–2019). Engineered for precision and durability, the SEI 90-428 lower unit fits both 2-stroke and 4-stroke Yamaha V6 engines and installs...- $1,399.00
$1,552.89- $1,399.00
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New Yamaha 150–200HP 2/4-Stroke (1990–2024) Replacement Lower Unit | Aftermarket | Counter Rotation | Fits 25″ Shaft | 3-Year Warranty
- $1,399.00
$1,572.25- $1,399.00
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Upgrade your Yamaha outboard with the SEI 90-418 Counter Rotation Lower Unit, built for 150HP–200HP 2-stroke and 4-stroke models (1990–2024).This high-performance, direct-fit aftermarket replacement is ideal for twin-engine boats requiring left-hand (counter) rotation.Fully assembled, pre-filled with premium gear lube, and backed by a 3-year...- $1,399.00
$1,572.25- $1,399.00
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New Yamaha 250HP 4-Stroke (2005–2018) Counter-Rotation Replacement Lower Unit Aftermarket | Fits 25″ & 30″ Shafts | 2.00 Gear Ratio | 1-Year Warranty
- $1,699.00
$1,921.90- $1,699.00
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Enhance the performance and reliability of your Yamaha LF250 4-Stroke outboard with this high-quality aftermarket counter-rotation lower unit from SEI Marine Products. Engineered for precision, smooth operation, and long-lasting durability — this replacement gearcase delivers OEM-level performance for Yamaha 250HP engines manufactured between 2005...- $1,699.00
$1,921.90- $1,699.00
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Yamaha V6 Lower Unit | Spanner-Nut Style | 150–200HP (1988–2012) | New & Remanufactured | 1-Year Warranty SKU: YA-G6-01-N
- From $2,449.00
$2,832.72- From $2,449.00
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Upgrade or replace your Yamaha V6 outboard lower unit with this precision-engineered spanner-nut style gearcase — designed for 150HP to 200HP engines (1988–2012). Built to OEM standards, it offers outstanding reliability and smooth performance for both freshwater and saltwater use. Available in new or...- From $2,449.00
$2,832.72- From $2,449.00
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New Yamaha PRO-V / V-MAX Lower Unit | 150–200HP | 2-Stroke | 20″ Shaft | Spanner-Nut Style (1986–2014) | New & Remanufactured | YA-G6-04 | 1-Year Warranty SKU: YA-G6-04
MPN: YA-G6-04- From $2,549.00
$2,982.57- From $2,549.00
- (-15%)
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Enhance the power and reliability of your Yamaha 2-stroke outboard with this PRO-V / V-MAX Lower Unit. Specifically designed for 150–200HP Yamaha models (1986–2014), this spanner-nut style gearcase offers exceptional strength and performance — ideal for high-speed or heavy-duty marine use. Available in both...- From $2,549.00
$2,982.57- From $2,549.00
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New Yamaha SHO VF150 | VF175 | 4-CYL 4-Stroke | Lower Unit (2013–2024) | 20” & 25” Shaft | New & Remanufactured | YA-G4-09 | 1-Year Warranty SKU: YA-G4-09D-R
MPN: YA-G4-09-N- From $2,549.00
$2,982.57- From $2,549.00
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With Yamaha SHO VF150 and VF175 restore the full power and reliability of your Yamaha SHO outboard with this premium replacement lower unit. Designed for VF150 and VF175 4-cylinder, 4-stroke engines (2013–2024), this unit is built to OEM specifications for a seamless fit and...- From $2,549.00
$2,982.57- From $2,549.00
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Yamaha F150 | F175 | F200 4-Stroke Lower Unit (2004–2024) | 150–200HP | Fits 20″ & 25″ Shafts | New or Remanufactured | 1-Year Warranty SKU: YA-G4-10-R
MPN: YA-G4-06- From $2,799.00
$3,132.42- From $2,799.00
- (-11%)
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Restore your Yamaha outboard’s smooth performance and reliability with this premium replacement lower unit — designed for F150, F175, and F200 4-stroke models (2004–2024). Whether you choose new or remanufactured, each unit is built to OEM specifications for a perfect fit, factory-tested for precision,...- From $2,799.00
$3,132.42- From $2,799.00
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Yamaha F250 Lower Units | V6 4-Stroke Bolt-In Carrier | 25″/30″ Shaft | 2007–2018 | New & Remanufactured | YA-G6-19 | 1-Year Warranty SKU: YA-G6-19C-R
MPN: YA-G6-19-N- From $2,800.00
$3,581.97- From $2,800.00
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Restore the performance of your Yamaha F250 V6 4-Stroke outboard with this premium-quality lower unit. Designed for 2007–2018 models, it features a bolt-in carrier design and fits 25″ and 30″ shaft engines. Choose between new or remanufactured options, both built to meet OEM standards...- From $2,800.00
$3,581.97- From $2,800.00
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Yamaha V6 3.3L 4-Stroke Lower Units | Bolt-In Carrier | 200HP–225HP (2002–2019) | New & Remanufactured | YA-G6-13 | 1-Year Warranty SKU: YA-G6-13A-R
MPN: YA-G6-13- From $2,859.00
$3,282.27- From $2,859.00
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Enhance the performance and reliability of your Yamaha outboard with this Yamaha V6 3.3L 4-Stroke Lower Unit, engineered for 200HP–225HP engines produced between 2002 and 2019.Designed with a bolt-in carrier for added strength and precision alignment, this lower unit ensures smooth operation, superior durability,...- From $2,859.00
$3,282.27- From $2,859.00
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Yamaha VMAX Lower Unit | V6 3.1/3.3L Bolt-In Carrier (1990–2009) | 200–250HP | New & Remanufactured | 1-Year Warranty SKU: YA-G6-09-R
MPN: YA-G6-09-R- From $2,959.00
$3,282.27- From $2,959.00
- (-10%)
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Restore your outboard’s power and precision with this Yamaha VMAX V6 3.1L / 3.3L Bolt-In Carrier Lower Unit, designed for 200HP to 250HP engines from 1990–2009.Engineered to OEM standards, this lower unit ensures a perfect fit, smooth shifting, and long-term performance — whether you...- From $2,959.00
$3,282.27- From $2,959.00
- (-10%)
- Unit price
- per
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Yamaha F250 V6 4-Stroke Lower Unit | Bolt-In Carrier | Fits 25″ & 30″ Shafts | 2005–2006 Models | New or Remanufactured | YA-G6-18 | 1-Year Warranty SKU: YA-G6-18C-R
MPN: YA-G6-18- From $3,159.00
$3,581.97- From $3,159.00
- (-14%)
- Unit price
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Restore your Yamaha F250 V6 4-Stroke outboard to full performance with this OEM-quality Lower Unit, built for 2005–2006 engines.Available in both New and Remanufactured options, this lower unit is designed with a bolt-in carrier for quick installation and long-lasting durability. Whether you need a...- From $3,159.00
$3,581.97- From $3,159.00
- (-14%)
- Unit price
- per
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