{"product_id":"4-quart-poly-power-unit-reservoir-for-hydraulic-systems-durable","title":"4 Quart Poly Power Unit Reservoir for Hydraulic Systems - Durable","description":"\u003cp\u003eIn this review of the 4 Quart Poly Power Unit Reservoir, the bottom line is simple: this compact polyethylene hydraulic tank is best for mechanics and DIYers who need a reliable, corrosion-resistant reservoir that fits in tight spaces. It earns recommendation primarily for its precise dimensions and practical feature set, which make installation straightforward and ongoing maintenance easier. The reviewer found it particularly useful when replacing small original equipment tanks on trucks, trailers, and RV hydraulic systems because it balances capacity and footprint without unnecessary complexity.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrecise Dimension:\u003c\/strong\u003e The compact 7 in by 8 in by 8 in size with a 4 quart capacity makes it easy to fit where space is limited while still holding a useful volume of hydraulic fluid.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStandard Opening:\u003c\/strong\u003e The 4-11\/16 in round opening and 4 in square bolt style simplify mounting and compatibility with common pump fittings.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUniversal Application:\u003c\/strong\u003e Designed for heavy tractors, dump trucks, trailers, RVs, and boats, it serves a wide range of hydraulic systems needing an auxiliary reservoir.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eContamination Control:\u003c\/strong\u003e Built-in plug and breather caps help keep dirt out and support filtration, protecting pumps from abrasive particles.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTranslucent Body with Scales:\u003c\/strong\u003e The surface min\/max scales and translucent polyethylene make fluid level checks quick and reduce guesswork during service.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDurable Material:\u003c\/strong\u003e Made from heavy-duty polyethylene that resists corrosion and chemical breakdown for long service life in harsh environments.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eWho It's For\u003c\/h2\u003e\u003cp\u003eThis reservoir is aimed at vehicle owners and technicians who need a small, dependable hydraulic fluid tank for repair or upgrade jobs on agricultural equipment, small commercial trucks, trailers, RV hydraulic lifts, and marine steering or trim systems. Its compact footprint and standard opening sizes make it a practical swap-in for many OEM tanks.\u003c\/p\u003e\u003cp\u003eIt is not intended for large industrial installations that require multi-gallon capacity or integrated complex plumbing; buyers needing large-volume storage or custom manifolded systems should consider larger steel or multi-port reservoirs instead.\u003c\/p\u003e\u003ch2\u003ePros \u0026amp; Cons\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003ePros\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eCompact 4 quart capacity fits tight spaces without sacrificing necessary fluid volume.\u003c\/li\u003e\n\u003cli\u003eWell thought-out openings and bolt style make installation straightforward for many hydraulic pumps.\u003c\/li\u003e\n\u003cli\u003eTranslucent polyethylene and min\/max scales make level checks simple and reduce maintenance time.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCons\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\u003cli\u003eSmall 4 quart capacity limits use to lighter systems and short-duration applications compared with larger tanks.\u003c\/li\u003e\u003c\/ul\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003eCapacity\u003c\/td\u003e\n\u003ctd\u003e4 quart\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e7 in L x 8 in W x 8 in H\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOpening\u003c\/td\u003e\n\u003ctd\u003e4-11\/16 in round\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBolt Style\u003c\/td\u003e\n\u003ctd\u003e4 in square bolt\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003eHeavy-duty polyethylene\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFeatures\u003c\/td\u003e\n\u003ctd\u003ePlug and breather caps, translucent body with min\/max scales\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch2\u003eOur Verdict\u003c\/h2\u003e\u003cp\u003eThe 4 Quart Poly Power Unit Reservoir is a practical, value-minded choice for anyone replacing or upgrading a small hydraulic tank on trucks, trailers, RVs, or boats. Its exact dimensions, standard openings, and durable polyethylene construction offer reliable performance for light to medium hydraulic systems, making it a sensible buy when space and corrosion resistance matter.\u003c\/p\u003e\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eWill this tank fit common small hydraulic pumps?\u003c\/strong\u003e\u003cbr\u003eYes; the 4-11\/16 in opening and 4 in square bolt style are compatible with many standard small pump fittings used on trucks and trailers.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the material resistant to hydraulic oil and corrosion?\u003c\/strong\u003e\u003cbr\u003eYes; the tank is made of heavy-duty polyethylene that is corrosion resistant and chemically stable for long service life.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCan this reservoir be used for large commercial systems?\u003c\/strong\u003e\u003cbr\u003eNo; with a 4 quart capacity it is best for light to medium systems and not suited for large industrial installations needing higher fluid volume.\u003c\/p\u003e","brand":"LOSTAR","offers":[{"title":"Default Title","offer_id":48204099125467,"sku":"B0DYHY81NM","price":72.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0724\/1043\/1707\/files\/51kwVXM3I7L._AC_SL1500.jpg?v=1769794065","url":"https:\/\/gearmusthave.com\/products\/4-quart-poly-power-unit-reservoir-for-hydraulic-systems-durable","provider":"GearMustHave","version":"1.0","type":"link"}