The Genuine Mercury Racing ROS Hydraulic Hose Kit from Buckshot Racing #77 includes the two factory hydraulic hose assemblies used on Mercury Racing Remote Oil System (ROS) trim systems equipped with the trim pump mounted inside the boat and the long single-ram trim cylinder.
These are genuine Mercury OEM components, manufactured to Mercury Marine specifications for proper hydraulic flow, pressure, durability, and long service life.
The kit includes one (1) Mercury OEM Part Number 89024001, the 10-foot Hydraulic Hose Assembly – Pump Up (Port at Transom), and one (2) Mercury OEM Part Number 89023001, the 10-foot Hydraulic Hose Assembly – Pump Down (Starboard at Transom).
Together, they provide the correct hose length and factory fittings required to restore reliable trim and tilt operation on Mercury Racing remote hydraulic systems.
Mercury Racing developed the remote hydraulic trim system to relocate the hydraulic pump inside the boat, reducing weight on the transom while improving accessibility for maintenance.
These systems are commonly found on high-performance bass boats, offshore boats, pleasure boats, and custom performance applications where fast, consistent trim response is essential.
Over time, hydraulic hoses can become brittle, internally restricted, or develop leaks that reduce trim speed, holding pressure, and overall system performance. Replacing both hoses together helps restore proper hydraulic operation while minimizing the chance of future failures.
The Mercury OEM 89024001 and 89023001 hydraulic hose assemblies fit numerous Mercury Marine and Mercury Racing V6 outboards equipped with the factory remote trim pump and long single trim ram.
Applications include 2.0 Liter, 2.4 Liter, and 2.5 Liter V6 engines, including 150 HP, 175 HP, 200 HP, 225 HP, 245 HP, 260 HP, and 280 HP high-performance models.
Popular engine applications include the Bridgeport EFI, 245 Carb, 200 Pro Max, 225 Pro Max, 260 EFI, and 280 ROS equipped with the Mercury Racing remote hydraulic trim system.
The same Mercury Racing hydraulic hose assemblies are also used on numerous later Mercury Racing and Mercury Marine performance platforms utilizing the remote trim system, including the 225 Sport XS, 250 Sport XS, 250XS 3.0L Optimax, 300X 3.2L EFI, 300XS 3.2L Optimax, 200R 3.4L V6 Racing, 250R 4.6L V8 Racing, 300R 4.6L V8 Racing, and 300 ROS 4.6L V8 Racing models equipped with Mercury Racing remote hydraulic trim components.
Both hose assemblies are manufactured by Mercury Marine using heavy-duty hydraulic hose designed to withstand high operating pressures, repeated trim cycling, vibration, and harsh marine environments.
The factory-installed fittings ensure proper routing, leak-free sealing, and direct installation without modification, making this kit ideal for routine maintenance, restoration projects, or complete race boat rigging.
For best performance, Buckshot Racing #77 recommends inspecting the trim pump, hydraulic cylinder, fittings, hydraulic fluid, and steering hoses whenever new hydraulic hoses are installed. We offer trim pump fittings to match the OEM hoses on our custom trim pumps.
Any contaminated hydraulic oil should be replaced, and the system should be properly bled according to the Mercury Racing service manual to eliminate trapped air and restore full trim speed and holding pressure.
Whether you're restoring a Bridgeport EFI, maintaining a 280 ROS, servicing a 200 Pro Max, 225 Pro Max, 250XS, 300XS, 250R, or 300R, the Genuine Mercury OEM 89024001 and 89023001 Hydraulic Hose Kit provides the factory quality, fit, and reliability demanded by high-performance Mercury owners.
Kit Includes
This complete kit includes one Mercury OEM 89024001 Hydraulic Hose Assembly (10 Feet) – Pump Up (Port at Transom) and one Mercury OEM 89023001 Hydraulic Hose Assembly (10 Feet) – Pump Down (Starboard at Transom).
Both are genuine Mercury Marine hydraulic hose assemblies designed for Mercury Racing remote trim systems equipped with the long single hydraulic trim ram.
Genuine Mercury OEM Part Numbers
- 89024001 – Hydraulic Hose Assembly (10 Feet), Pump Up – Port at Transom
- 89023001 – Hydraulic Hose Assembly (10 Feet), Pump Down – Starboard at Transom
Contact Mike Hill with any tech questions at 714-697-1716


