Product Details: The OTR Aluminum Saddle Mount Hydraulic Reservoir ensures Expertise Built In™ by efficiently holding the residual fluid for the semi truck's hydraulic tank system. This OTR reservoir allows for proper and safe heat exchange through the drum walls for your application while preventing air from causing issues in your system. In addition, this OTR hydraulic reservoir is ideal for end dump applications while featuring a sight glass for reliable level monitoring and saddle mounting. For proper maintenance, the breather cap needs monthly cleaning and yearly replacement to ensure proper function and fluid flow. In the end, this heavy duty aluminum reservoir is critical to your hydraulic system and is high-quality with great capacity. FleetPride is your First Click in Heavy Duty®.