8 Quart Poly Power Unit Reservoir for Hydraulic Systems - Durable
8 Quart Poly Power Unit Reservoir for Hydraulic Systems - Durable
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In this review of the 8 Quart Poly Power Unit Reservoir, the bottom line is simple: this is a practical replacement tank for anyone who needs a compact, corrosion-resistant hydraulic fluid reservoir for mobile equipment. It is aimed at owners of dump trucks, trailers, RVs, boats and tractors who want an affordable, no-frills tank that fits typical mounting spaces and keeps contaminants away from pumps. The single biggest reason to buy is the combination of accurate dimensions and durable polyethylene construction that makes installation straightforward and long-term maintenance easier.
Key Features
- Precise Dimension: The measured 7 in by 8 in by 17.25 in footprint ensures the tank will fit into tight power unit locations and match expected plumbing clearances.
- 8 Quart Capacity: The 8 quart volume provides enough hydraulic oil storage for small to medium power units without taking up excess space on a vehicle.
- Universal Application: The reservoir is suited for a variety of hydraulic systems on trucks, tractors, trailers, RVs and boats, so it works across many vehicle types.
- Filtration Support: The tank helps keep impurities and particles away from the hydraulic pump, protecting system operation and reducing premature wear.
- Convenient Service Points: The included plug and breather caps make filling and venting easier and speed routine service checks.
- Durable Material: Heavy-duty polyethylene resists corrosion and chemical breakdown for longer service life in harsh environments.
Who It's For
This reservoir is best for vehicle owners and fleet mechanics who need a compact, reliable hydraulic fluid tank that can be swapped in place of worn or cracked reservoirs. It is particularly useful for operators of dump trucks, trailers and small hydraulic lifts where space is limited and a translucent polyethylene tank makes fluid level checks fast.
Those who should look elsewhere include users requiring larger capacity reservoirs, custom-shaped tanks for confined or unusual installations, or systems needing integrated complex fittings and sensors - this product is a straightforward 8 quart utility tank without built-in telemetry.
Pros & Cons
Pros
- Good fit for standard power unit layouts thanks to the precise 7 in x 8 in x 17.25 in dimensions.
- Quality polyethylene construction resists corrosion and chemical wear for durable service life.
- Useful service features such as plug and breather caps and translucent sides simplify maintenance and level checks.
- Works across many vehicle types, making it a versatile replacement part.
Cons
- Limited to 8 quart capacity, so not suitable for systems that require larger oil storage.
- Provided openings and fittings are basic; users needing specialized ports or sensors will need to modify the tank.
Specifications
| Brand | LOSTAR |
| Capacity | 8 quart |
| Dimensions | 7 in L x 8 in W x 17.25 in H |
| Opening Size | 4-11/16 in round opening and 4 in square bolt style |
| Material | Heavy-duty polyethylene |
| Service Features | Plug cap and breather cap, translucent with min/max scales |
Our Verdict
The 8 Quart Poly Power Unit Reservoir is a pragmatic choice for mechanics and vehicle owners who need a reliable, corrosion-resistant 8 quart replacement tank. It delivers accurate dimensions, useful service features and durable polyethylene construction at a sensible value, making it ideal for small to medium hydraulic power units where space and contamination protection matter.
Frequently Asked Questions
Will this tank fit most loader and dump truck power units?
Yes, the 7 in x 8 in x 17.25 in footprint and common opening styles make it compatible with many standard power unit installations.
Can I see fluid level without opening the tank?
Yes, the translucent polyethylene body includes min and max scales to make visual level checks straightforward.
Does the tank include a breather and fill plug?
It does - the design includes a plug cap and a breather cap to simplify filling and venting during service.
Editor's Take
The 8 Quart Poly Power Unit Reservoir is a practical, corrosion-resistant 8 quart replacement tank with accurate dimensions and convenient service features, ideal for small to medium hydraulic power units.

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