- Home
- Boat Outboard Engine Parts
- Mercury
- Lower Unit & Water Pump
- Mercury 3.0L 200-225-250 Lower Unit COUNTER LEFT 25" Shaft Gearcase Ratio 1.75
Categories
- HOME
- ATV - UTV Parts (4 Wheeler)
- BBQ-Cooler-Kitchen-Appliances
- Boat Accessories: Deck-Cabin
- Boat Inboard I/O Engine Parts
- Boat Outboard Engine Parts
- Boat Steering & Control
- Motorcycles Dirt/Super Bikes
- Electrical
- Engine Maintenance Parts
- Fishing
- Fuel: Tank-Filter-Sender-Parts
- General Boating
- GPS Fishfinder Navigation
- Hardware
- Jetboat & PWC Watercraft Parts
- Maintenance & Care
- Paint & Accessories & Tools
- Plumbing: Pumps-Parts-Fittings
- RV Camper Outdoor Hitch Tow
- Propellers-Skeg Guard-Anodes
- Sailing-Sailboat
- Snowmobile Parts
- Sports & Recreation & Clothing
- Stereo Receiver Speaker Amps
- Trailer Parts Trailering
- Trolling Motors & Accessories
- Used Parts
- Used & Remanufactured Engines
- Ventilation: Blower-Hatch-AC
- Others
Product Description
LEFT, COUNTER ROTATION LOWER UNIT PLEASE READ BEFORE ORDERING
- It fits MOST but maybe NOT all 200-225-250 HP engines from 1994 to 2006.
- It fits Mercury Optimax and EFI
- Replaces Mercury lower unit 859399T14
DESCRIPTION:
- NEW aftermarket LOWER UNIT, not a remanufactured unit or a rebuilt unit
- Warranty: 3 year no fault warranty
- 100% OEM compatible,
- Bolt on application. Ad oil and use it.
- Includes water pump and shaft
- Does NOT include anode kit and gearcase OI
- No core charge, keep your old unit
TECHNICAL INFORMATION:
15 spline propeller shaft for 15 spline propellers.
Upper Drive Shaft Spline Count: 13 teeth
DETERMINE SHAFT LENGTH
- Measure from the top of the drive shaft to the top of the aluminum housing or the mounting surface:
- 20" midsection model. 23" top of drive shaft to top of mounting surface
- 25" midsection model. 28" top of drive shaft to top of mounting surface
- 30" midsection model. 33" top of drive shaft to top of mounting surface
IMPORTANT NOTE ABOUT GEAR RATIO: 3.0 liter engines uses 2 gear ratio: 1.62:1 or 1.75:1
IMPORTANT NOTE ABOUT DRIVE SHAFT WITH 8 SPLINES:
- If you have an 8 Spline drive shaft you will receive a lower unit with a short shaft about 9-1/4" long designed for sterndrive or inboard outboard such as Mercruiser. You will need to buy the coupler or stub shaft and an upper driveshaft extension from an OE dealer. We can also sell it. Below is the Kit Part Number:
- For 20" midsection Mercury PN: 45-824114A 1
- For 25" midsection Mercury PN: 45-823901A 1
- For 30" midsection Mercury PN: 45-824115A 1
Doubts??
PLEASE SEND US YOUR ENGINE MODEL NUMBER, SERIAL NUMBER, AND YOUR GEAR RATIO. WITH THAT INFO WE CAN SHIP THE RIGHT LOWER UNIT.
Satisfaction guaranteed in all products we sell. Returns accepted in 14 days for money back in NEW ITEMS ONLY.
Restocking fee 20% if item is return installed
- It fits MOST but maybe NOT all 200-225-250 HP engines from 1994 to 2006.
- It fits Mercury Optimax and EFI
- Replaces Mercury lower unit 859399T14
DESCRIPTION:
- NEW aftermarket LOWER UNIT, not a remanufactured unit or a rebuilt unit
- Warranty: 3 year no fault warranty
- 100% OEM compatible,
- Bolt on application. Ad oil and use it.
- Includes water pump and shaft
- Does NOT include anode kit and gearcase OI
- No core charge, keep your old unit
TECHNICAL INFORMATION:
15 spline propeller shaft for 15 spline propellers.
Upper Drive Shaft Spline Count: 13 teeth
DETERMINE SHAFT LENGTH
- Measure from the top of the drive shaft to the top of the aluminum housing or the mounting surface:
- 20" midsection model. 23" top of drive shaft to top of mounting surface
- 25" midsection model. 28" top of drive shaft to top of mounting surface
- 30" midsection model. 33" top of drive shaft to top of mounting surface
IMPORTANT NOTE ABOUT GEAR RATIO: 3.0 liter engines uses 2 gear ratio: 1.62:1 or 1.75:1
IMPORTANT NOTE ABOUT DRIVE SHAFT WITH 8 SPLINES:
- If you have an 8 Spline drive shaft you will receive a lower unit with a short shaft about 9-1/4" long designed for sterndrive or inboard outboard such as Mercruiser. You will need to buy the coupler or stub shaft and an upper driveshaft extension from an OE dealer. We can also sell it. Below is the Kit Part Number:
- For 20" midsection Mercury PN: 45-824114A 1
- For 25" midsection Mercury PN: 45-823901A 1
- For 30" midsection Mercury PN: 45-824115A 1
Doubts??
PLEASE SEND US YOUR ENGINE MODEL NUMBER, SERIAL NUMBER, AND YOUR GEAR RATIO. WITH THAT INFO WE CAN SHIP THE RIGHT LOWER UNIT.
Satisfaction guaranteed in all products we sell. Returns accepted in 14 days for money back in NEW ITEMS ONLY.
Restocking fee 20% if item is return installed
Loading... Please wait...








