When choosing a plastic hydraulic reservoir tank for power units, trailers, and lifts, durability, compatibility, and capacity matter most. This guide highlights five reliable options designed to hold hydraulic oil, filter impurities, and support stable system operation. All are lightweight, corrosion-resistant, and easy to install, making them suitable for a variety of hydraulic applications—from dump trucks to RVs and auto lifts. The selections emphasize flat-bottom, plastic poly tanks that resist rust and offer convenient bolt patterns and openings for straightforward integration with existing power units.
| Product | Brand | Capacity | Opening | Notes |
|---|---|---|---|---|
| 6 Quart Poly Power Unit Reservoir | LOSTAR | 6 quarts | 4-11/16″ round | Flat bottom, universal application |
| 4 Quart Poly Power Unit Reservoir | LOSTAR | 4 quarts | 4-11/16″ round | Compact, versatile |
| 8 Quart Poly Power Unit Reservoir | LOSTAR | 8 quarts | 4-11/16″ round | Larger capacity |
| 4 Quart Poly Hydraulic Replacement Reservoir | Primary Mover | 4 quarts | 4-11/16″ round | Plug and breather caps included |
| Oil Reservoir Tank Fit DURO Lift Power | Jetuplusllc | Not listed | 4.25″ diameter | Fits 2- and 4-post lifts |
6 Quart Poly Power Unit Reservoir For Hydraulic Systems
LOSTAR’s 6 Quart Poly Power Unit Reservoir is crafted for durability and broad compatibility. Measuring 7″ L, 8″ W, and 13″ H with a 4-11/16″ round opening, it provides ample capacity for many hydraulic systems. The square bolt pattern aligns with standard mounting configurations, supporting stable installation on heavy equipment such as trucks, boats, RVs, and tractors. Its polyethylene construction resists corrosion and is designed to filter and store hydraulic oil effectively, helping protect pumps and maintain steady system performance.
4 Quart Poly Power Unit Reservoir For Hydraulic Systems
This 4 Quart LOSTAR reservoir is optimized for compact spaces while delivering reliable hydraulic oil storage. Its 7″ L x 8″ W x 8″ H footprint and a 4-11/16″ round opening with a 4″ square bolt pattern simplify mounting on smaller power units and utility vehicles. It supports a variety of hydraulic systems, including heavy-duty tractors and RVs, by providing a clean oil reservoir that helps prevent impurity ingress and ensures smooth pump operation.
8 Quart Poly Power Unit Reservoir For Hydraulic Systems
With an 8 quart capacity, this LOSTAR reservoir extends the oil supply for longer cycles or larger hydraulic pumps. Its dimensions are 7″ L by 8″ W by 17.25″ H, featuring a 4-11/16″ opening and a 4″ bolt pattern for sturdy mounting. The design emphasizes universal applicability across heavy equipment, trucks, RVs, boats, and other hydraulic systems, offering effective oil storage, filtration, and impurity protection to sustain hydraulic performance.
4 Quart Poly Hydraulic Replacement Reservoir
Primary Mover’s 4 Quart Poly Hydraulic Replacement Reservoir emphasizes precise fit and flexibility. It features a 4-11/16″ round opening with a 4″ square bolt pattern, ensuring compatibility with a range of power units. The kit includes plug and breather caps for added convenience, enabling a ready-to-use installation that helps protect hydraulic pumps from debris and maintains clean, stable oil flow across varying lift or dump configurations.
LEAPTREND Oil Reservoir Tank For DURO Power Units
LEAPTREND’s reservoir is designed for compatibility with a range of lift systems, including DURO power units and popular brands like Eagle Lifts, Auto Lift, and Strong Arm. The part type is an oil tank with a plastic exterior finish, offering straightforward integration for lifts up to 12,000 pounds. It is recommended to use AW46 or AW32 hydraulic oil when refueling, and the included hose clamp and wrench simplify maintenance and installation for a smooth, efficient operation.
Oil Reservoir Tank Fit DURO Lift Power For Auto Lift
Jetuplusllc offers an oil reservoir designed to fit 2- and 4-post lifts up to 12k capacity. Its overall measurements include a total length of 19.5″ (including neck) and a 7″ width, with a 4.25″ neck diameter. This reservoir provides practical compatibility for DURO Lift and similar power units, delivering a reliable oil holding solution to support hydraulic system performance during heavy operation cycles.
RomoTech 26 Gallon Poly Reservoir Water Tank
RomoTech’s 26-gallon domed reservoir is designed for water and non-flammable liquids, offering a rust- and corrosion-proof poly tank with molded-in graduation marks in gallons and liters. While larger than typical hydraulic reservoirs, its sturdy polyethylene construction provides durable storage for hydraulic-related water or coolant applications within compatible systems, making it a versatile option for larger or multi-utility setups.
Buying Guide: Key Purchase Considerations And Comparisons
- Capacity needs: Choose a reservoir that matches your hydraulic pump’s flow rate and duty cycle. Smaller units (4–6 quarts) are common for compact machines; larger units (8 quarts and above) suit high-demand systems or longer operation windows.
- Opening size and bolt pattern: A 4-11/16″ round opening and a 4″ square bolt pattern are standard and ensure broad compatibility with many power units. Confirm the mounting footprint and neck diameter to fit your equipment.
- Material and durability: Polyethylene tanks resist corrosion and chemical exposure, providing long service life in varied environments (outdoor, wet, dusty, or marine settings).
- Installation considerations: Look for flat-bottom designs for stable mounting, and check whether the kit includes plugs, breather caps, or clamps for a complete, ready-to-install solution.
- Compatibility with oils: Ensure the reservoir is suitable for the hydraulic oils you use (AW46, AW32, etc.) and that it offers filtration support to minimize contaminant ingress into the pump.
- Maintenance and accessibility: Easy access to openings for draining, filling, and cleaning helps sustain hydraulic performance and system cleanliness over time.
- Brand and warranty: Reputable brands like LOSTAR, Primary Mover, and Jetuplusllc typically offer product support and more reliable compatibility with common lift and power unit configurations.
- Versatility: If you operate multiple types of equipment (trucks, trailers, boats, RVs), prioritize reservoirs with universal mounting and broad compatibility to minimize inventory needs.
- Upgrade potential: For future-proofing, consider higher-capacity reservoirs if your system is evolving toward larger pumps or heavier loads.
These selections emphasize plastic, lightweight, and corrosion-resistant reservoirs designed to integrate with a wide array of hydraulic power units and lifting equipment. When selecting a reservoir, balance capacity, mounting compatibility, and maintenance features to ensure a stable, clean oil supply and sustained hydraulic performance across your equipment lineup.
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