{"product_id":"u-m-r-kit-vr54-unloader-ready-kit-for-pumps-up-to-2900-psi-with-3-8-fpt-inlet-1-4-fpt-outlet-oem-replacement-part","title":"U.M.R. Kit VR54 Unloader Ready Kit for Pumps Up to 2900 PSI with 3\/8\" FPT Inlet \u0026 1\/4\" FPT Outlet – OEM Replacement Part","description":"\u003cp data-start=\"0\" data-end=\"146\" class=\"PDq2pG_selectionAnchorContainer\"\u003e\u003cstrong data-start=\"0\" data-end=\"16\"\u003ePart Number:\u003c\/strong\u003e 4900\u003cbr data-start=\"21\" data-end=\"24\"\u003e\u003cstrong data-start=\"24\" data-end=\"37\"\u003eCategory:\u003c\/strong\u003e Pressure Washer Parts → Unloader Valves → Unloader Ready Kits\u003cbr data-start=\"99\" data-end=\"102\"\u003e\u003cstrong data-start=\"102\" data-end=\"111\"\u003eType:\u003c\/strong\u003e U.M.R. Kit VR54 Unloader Ready Kit\u003cspan aria-hidden=\"true\" class=\"PDq2pG_selectionAnchor\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003chr data-start=\"148\" data-end=\"151\"\u003e\n\u003cp data-start=\"283\" data-end=\"763\"\u003eThe \u003cstrong data-start=\"287\" data-end=\"338\"\u003eU.M.R. Kit VR54 Unloader Ready Kit (Part #4900)\u003c\/strong\u003e is a complete OEM replacement solution designed to simplify the replacement of worn or damaged pressure-actuated unloader valves on pressure washer systems operating up to \u003cstrong data-start=\"511\" data-end=\"524\"\u003e2,900 PSI\u003c\/strong\u003e. Built around the dependable \u003cstrong data-start=\"554\" data-end=\"589\"\u003eVR54 pressure-actuated unloader\u003c\/strong\u003e, this kit includes the essential components needed for a quick and efficient installation, helping restore proper pressure regulation, bypass operation, and pump protection.\u003c\/p\u003e\n\u003chr data-start=\"1336\" data-end=\"1339\"\u003e\n\u003ch2 data-section-id=\"939trr\" data-start=\"1341\" data-end=\"1367\"\u003eKey Features \u0026amp; Benefits\u003c\/h2\u003e\n\u003cul data-start=\"1369\" data-end=\"1880\"\u003e\n\u003cli data-section-id=\"t8iyqo\" data-start=\"1369\" data-end=\"1424\"\u003eComplete Unloader Made Ready (U.M.R.) replacement kit\u003c\/li\u003e\n\u003cli data-section-id=\"oub0zj\" data-start=\"1425\" data-end=\"1473\"\u003eIncludes VR54 pressure-actuated unloader valve\u003c\/li\u003e\n\u003cli data-section-id=\"1yy9zeg\" data-start=\"1474\" data-end=\"1510\"\u003eDesigned for pumps up to 2,900 PSI\u003c\/li\u003e\n\u003cli data-section-id=\"6gbfoi\" data-start=\"1511\" data-end=\"1547\"\u003eSimplifies pressure washer repairs\u003c\/li\u003e\n\u003cli data-section-id=\"1u7pqmn\" data-start=\"1548\" data-end=\"1585\"\u003eAutomatic pressure bypass operation\u003c\/li\u003e\n\u003cli data-section-id=\"1tzc7f5\" data-start=\"1586\" data-end=\"1632\"\u003eProtects pumps from damaging pressure spikes\u003c\/li\u003e\n\u003cli data-section-id=\"jhde0\" data-start=\"1633\" data-end=\"1670\"\u003eRestores proper pressure regulation\u003c\/li\u003e\n\u003cli data-section-id=\"1tou71\" data-start=\"1671\" data-end=\"1728\"\u003eIncludes installation accessories for quick replacement\u003c\/li\u003e\n\u003cli data-section-id=\"y8452l\" data-start=\"1729\" data-end=\"1765\"\u003eOEM-quality replacement components\u003c\/li\u003e\n\u003cli data-section-id=\"16a00u4\" data-start=\"1766\" data-end=\"1831\"\u003eIdeal for residential, commercial, and light industrial systems\u003c\/li\u003e\n\u003cli data-section-id=\"1xq6xti\" data-start=\"1832\" data-end=\"1860\"\u003eReduces equipment downtime\u003c\/li\u003e\n\u003cli data-section-id=\"10qidiy\" data-start=\"1861\" data-end=\"1880\"\u003eEasy installation\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"1882\" data-end=\"1885\"\u003e\n\u003ch2 data-section-id=\"1cgu054\" data-start=\"1887\" data-end=\"1914\"\u003eTechnical Specifications\u003c\/h2\u003e\n\u003cp data-start=\"1916\" data-end=\"1937\"\u003e\u003cstrong data-start=\"1916\" data-end=\"1932\"\u003ePart Number:\u003c\/strong\u003e 4900\u003c\/p\u003e\n\u003cp data-start=\"1939\" data-end=\"1975\"\u003e\u003cstrong data-start=\"1939\" data-end=\"1956\"\u003eProduct Type:\u003c\/strong\u003e Unloader Ready Kit\u003c\/p\u003e\n\u003cp data-start=\"1977\" data-end=\"1992\"\u003e\u003cstrong data-start=\"1977\" data-end=\"1987\"\u003eModel:\u003c\/strong\u003e VR54\u003c\/p\u003e\n\u003cp data-start=\"1994\" data-end=\"2025\"\u003e\u003cstrong data-start=\"1994\" data-end=\"2015\"\u003eMaximum Pressure:\u003c\/strong\u003e 2,900 PSI\u003c\/p\u003e\n\u003cp data-start=\"2027\" data-end=\"2057\"\u003e\u003cstrong data-start=\"2027\" data-end=\"2048\"\u003eInlet Connection:\u003c\/strong\u003e 3\/8\" FPT\u003c\/p\u003e\n\u003cp data-start=\"2059\" data-end=\"2090\"\u003e\u003cstrong data-start=\"2059\" data-end=\"2081\"\u003eOutlet Connection:\u003c\/strong\u003e 1\/4\" FPT\u003c\/p\u003e\n\u003cp data-start=\"2092\" data-end=\"2128\"\u003e\u003cstrong data-start=\"2092\" data-end=\"2110\"\u003eUnloader Type:\u003c\/strong\u003e Pressure Actuated\u003c\/p\u003e\n\u003cp data-start=\"2130\" data-end=\"2154\"\u003e\u003cstrong data-start=\"2130\" data-end=\"2150\"\u003eOEM Replacement:\u003c\/strong\u003e Yes\u003c\/p\u003e\n\u003chr data-start=\"2156\" data-end=\"2159\"\u003e\n\u003ch2 data-section-id=\"x622x5\" data-start=\"2161\" data-end=\"2176\"\u003eKit Contents\u003c\/h2\u003e\n\u003cp data-start=\"2178\" data-end=\"2202\"\u003eThe U.M.R. Kit includes:\u003c\/p\u003e\n\u003cul data-start=\"2204\" data-end=\"2380\"\u003e\n\u003cli data-section-id=\"150dca8\" data-start=\"2204\" data-end=\"2243\"\u003eVR54 pressure-actuated unloader valve\u003c\/li\u003e\n\u003cli data-section-id=\"fc10r6\" data-start=\"2244\" data-end=\"2258\"\u003eInlet filter\u003c\/li\u003e\n\u003cli data-section-id=\"n97anp\" data-start=\"2259\" data-end=\"2292\"\u003eQuick-connect discharge fitting\u003c\/li\u003e\n\u003cli data-section-id=\"rrqxaj\" data-start=\"2293\" data-end=\"2313\"\u003ePush-on hose barbs\u003c\/li\u003e\n\u003cli data-section-id=\"1tj2iwj\" data-start=\"2314\" data-end=\"2347\"\u003eRoll of Teflon thread seal tape\u003c\/li\u003e\n\u003cli data-section-id=\"1rjbrdv\" data-start=\"2348\" data-end=\"2380\"\u003eInstallation instruction sheet\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"2382\" data-end=\"2468\"\u003e\u003cstrong data-start=\"2382\" data-end=\"2391\"\u003eNote:\u003c\/strong\u003e Components are supplied separately and require assembly during installation.\u003c\/p\u003e\n\u003chr data-start=\"2470\" data-end=\"2473\"\u003e\n\u003ch2 data-section-id=\"b0vcvy\" data-start=\"2475\" data-end=\"2516\"\u003eHow a Pressure Actuated Unloader Works\u003c\/h2\u003e\n\u003cp data-start=\"2518\" data-end=\"2619\"\u003eThe VR54 unloader automatically protects the pressure washer system by regulating operating pressure.\u003c\/p\u003e\n\u003cp data-start=\"2621\" data-end=\"2654\"\u003eWhen the trigger gun is released:\u003c\/p\u003e\n\u003cul data-start=\"2656\" data-end=\"2833\"\u003e\n\u003cli data-section-id=\"dwszg6\" data-start=\"2656\" data-end=\"2679\"\u003eSystem pressure rises\u003c\/li\u003e\n\u003cli data-section-id=\"j99eal\" data-start=\"2680\" data-end=\"2718\"\u003eThe unloader shifts into bypass mode\u003c\/li\u003e\n\u003cli data-section-id=\"8xrnu0\" data-start=\"2719\" data-end=\"2764\"\u003eWater is redirected away from the spray gun\u003c\/li\u003e\n\u003cli data-section-id=\"13p4p2c\" data-start=\"2765\" data-end=\"2795\"\u003ePressure buildup is relieved\u003c\/li\u003e\n\u003cli data-section-id=\"1enbxd3\" data-start=\"2796\" data-end=\"2833\"\u003eThe pump is protected from overload\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"2835\" data-end=\"2868\"\u003eWhen the trigger gun is reopened:\u003c\/p\u003e\n\u003cul data-start=\"2870\" data-end=\"2973\"\u003e\n\u003cli data-section-id=\"1wpb747\" data-start=\"2870\" data-end=\"2904\"\u003eWater flow returns to the outlet\u003c\/li\u003e\n\u003cli data-section-id=\"vaikfp\" data-start=\"2905\" data-end=\"2942\"\u003eFull operating pressure is restored\u003c\/li\u003e\n\u003cli data-section-id=\"91q58j\" data-start=\"2943\" data-end=\"2973\"\u003eCleaning resumes immediately\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"2975\" data-end=\"3053\"\u003eThis automatic operation improves both equipment reliability and service life.\u003c\/p\u003e\n\u003chr data-start=\"3055\" data-end=\"3058\"\u003e\n\u003ch2 data-section-id=\"jj3bbk\" data-start=\"3060\" data-end=\"3092\"\u003eBenefits of the U.M.R. System\u003c\/h2\u003e\n\u003cp data-start=\"3094\" data-end=\"3178\"\u003eThe Unloader Made Ready Kit provides everything needed for a convenient replacement.\u003c\/p\u003e\n\u003cp data-start=\"3180\" data-end=\"3197\"\u003eBenefits include:\u003c\/p\u003e\n\u003cul data-start=\"3199\" data-end=\"3363\"\u003e\n\u003cli data-section-id=\"16cr24x\" data-start=\"3199\" data-end=\"3215\"\u003eFaster repairs\u003c\/li\u003e\n\u003cli data-section-id=\"hfvgbc\" data-start=\"3216\" data-end=\"3241\"\u003eSimplified installation\u003c\/li\u003e\n\u003cli data-section-id=\"10viils\" data-start=\"3242\" data-end=\"3266\"\u003eReduced parts sourcing\u003c\/li\u003e\n\u003cli data-section-id=\"3iwt53\" data-start=\"3267\" data-end=\"3300\"\u003eOEM-quality fit and performance\u003c\/li\u003e\n\u003cli data-section-id=\"1iemgqk\" data-start=\"3301\" data-end=\"3334\"\u003eImproved maintenance efficiency\u003c\/li\u003e\n\u003cli data-section-id=\"3b65a9\" data-start=\"3335\" data-end=\"3363\"\u003eReduced equipment downtime\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"3365\" data-end=\"3368\"\u003e\n\u003ch2 data-section-id=\"vx2wyp\" data-start=\"3370\" data-end=\"3392\"\u003eCommon Applications\u003c\/h2\u003e\n\u003ch3 data-section-id=\"wcna3b\" data-start=\"3394\" data-end=\"3421\"\u003ePressure Washer Repairs\u003c\/h3\u003e\n\u003cp data-start=\"3423\" data-end=\"3433\"\u003eIdeal for:\u003c\/p\u003e\n\u003cul data-start=\"3435\" data-end=\"3573\"\u003e\n\u003cli data-section-id=\"17wzxhw\" data-start=\"3435\" data-end=\"3467\"\u003eReplacing worn unloader valves\u003c\/li\u003e\n\u003cli data-section-id=\"1p8fkjl\" data-start=\"3468\" data-end=\"3492\"\u003ePreventive maintenance\u003c\/li\u003e\n\u003cli data-section-id=\"kxlol\" data-start=\"3493\" data-end=\"3519\"\u003ePressure washer rebuilds\u003c\/li\u003e\n\u003cli data-section-id=\"1pr46hi\" data-start=\"3520\" data-end=\"3545\"\u003eEquipment refurbishment\u003c\/li\u003e\n\u003cli data-section-id=\"1z7x8n\" data-start=\"3546\" data-end=\"3573\"\u003eService vehicle inventory\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-section-id=\"1m4yfbj\" data-start=\"3575\" data-end=\"3602\"\u003ePressure Washer Systems\u003c\/h3\u003e\n\u003cp data-start=\"3604\" data-end=\"3617\"\u003eSuitable for:\u003c\/p\u003e\n\u003cul data-start=\"3619\" data-end=\"3789\"\u003e\n\u003cli data-section-id=\"xvja5y\" data-start=\"3619\" data-end=\"3649\"\u003eResidential pressure washers\u003c\/li\u003e\n\u003cli data-section-id=\"1bhmkg5\" data-start=\"3650\" data-end=\"3687\"\u003eLight commercial cleaning equipment\u003c\/li\u003e\n\u003cli data-section-id=\"1kl0ch0\" data-start=\"3688\" data-end=\"3713\"\u003eMobile pressure washers\u003c\/li\u003e\n\u003cli data-section-id=\"1351n5w\" data-start=\"3714\" data-end=\"3744\"\u003eProperty maintenance systems\u003c\/li\u003e\n\u003cli data-section-id=\"13xo5v3\" data-start=\"3745\" data-end=\"3789\"\u003eGeneral-purpose pressure washing equipment\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"3791\" data-end=\"3794\"\u003e\n\u003ch2 data-section-id=\"ctfpuh\" data-start=\"3796\" data-end=\"3819\"\u003ePerformance Benefits\u003c\/h2\u003e\n\u003cul data-start=\"3821\" data-end=\"4050\"\u003e\n\u003cli data-section-id=\"1bl7wox\" data-start=\"3821\" data-end=\"3851\"\u003eReliable pressure regulation\u003c\/li\u003e\n\u003cli data-section-id=\"1nzrik5\" data-start=\"3852\" data-end=\"3877\"\u003eSmooth bypass operation\u003c\/li\u003e\n\u003cli data-section-id=\"1bb2u3x\" data-start=\"3878\" data-end=\"3904\"\u003eImproved pump protection\u003c\/li\u003e\n\u003cli data-section-id=\"1ero2xq\" data-start=\"3905\" data-end=\"3930\"\u003eReduced pressure spikes\u003c\/li\u003e\n\u003cli data-section-id=\"1kjg8fj\" data-start=\"3931\" data-end=\"3960\"\u003eExtended equipment lifespan\u003c\/li\u003e\n\u003cli data-section-id=\"1gpagnp\" data-start=\"3961\" data-end=\"3994\"\u003eConsistent cleaning performance\u003c\/li\u003e\n\u003cli data-section-id=\"2ks8i6\" data-start=\"3995\" data-end=\"4020\"\u003eLower maintenance costs\u003c\/li\u003e\n\u003cli data-section-id=\"9d3fzo\" data-start=\"4021\" data-end=\"4050\"\u003eQuick and easy installation\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"4052\" data-end=\"4055\"\u003e\n\u003ch2 data-section-id=\"1azz5ev\" data-start=\"4057\" data-end=\"4095\"\u003eSigns an Unloader Needs Replacement\u003c\/h2\u003e\n\u003cp data-start=\"4097\" data-end=\"4136\"\u003eReplace the unloader if you experience:\u003c\/p\u003e\n\u003cul data-start=\"4138\" data-end=\"4332\"\u003e\n\u003cli data-section-id=\"zta6im\" data-start=\"4138\" data-end=\"4161\"\u003ePressure fluctuations\u003c\/li\u003e\n\u003cli data-section-id=\"ldy9cv\" data-start=\"4162\" data-end=\"4192\"\u003eWater leaks around the valve\u003c\/li\u003e\n\u003cli data-section-id=\"irubn0\" data-start=\"4193\" data-end=\"4220\"\u003eReduced cleaning pressure\u003c\/li\u003e\n\u003cli data-section-id=\"1vz4ts\" data-start=\"4221\" data-end=\"4252\"\u003eInconsistent bypass operation\u003c\/li\u003e\n\u003cli data-section-id=\"op63ib\" data-start=\"4253\" data-end=\"4284\"\u003eDifficulty adjusting pressure\u003c\/li\u003e\n\u003cli data-section-id=\"42aigf\" data-start=\"4285\" data-end=\"4306\"\u003ePump cycling issues\u003c\/li\u003e\n\u003cli data-section-id=\"16xn7rj\" data-start=\"4307\" data-end=\"4332\"\u003eExcessive internal wear\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"4334\" data-end=\"4337\"\u003e\n\u003ch2 data-section-id=\"16dprsq\" data-start=\"4339\" data-end=\"4360\"\u003eInstallation Notes\u003c\/h2\u003e\n\u003col data-start=\"4362\" data-end=\"4780\"\u003e\n\u003cli data-section-id=\"1xqzeet\" data-start=\"4362\" data-end=\"4423\"\u003eShut down the pressure washer and relieve system pressure.\u003c\/li\u003e\n\u003cli data-section-id=\"1b1k7hr\" data-start=\"4424\" data-end=\"4465\"\u003eRemove the existing unloader assembly.\u003c\/li\u003e\n\u003cli data-section-id=\"e9k40d\" data-start=\"4466\" data-end=\"4539\"\u003eInstall the VR54 unloader using the supplied fittings and accessories.\u003c\/li\u003e\n\u003cli data-section-id=\"1ba9bm7\" data-start=\"4540\" data-end=\"4598\"\u003eApply the included Teflon tape to threaded connections.\u003c\/li\u003e\n\u003cli data-section-id=\"1qsbnj8\" data-start=\"4599\" data-end=\"4645\"\u003eVerify all plumbing connections are secure.\u003c\/li\u003e\n\u003cli data-section-id=\"150pudy\" data-start=\"4646\" data-end=\"4712\"\u003eTest the pressure washer for leaks and proper bypass operation.\u003c\/li\u003e\n\u003cli data-section-id=\"2r6a0g\" data-start=\"4713\" data-end=\"4780\"\u003eAdjust operating pressure according to equipment specifications.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp data-start=\"4782\" data-end=\"4932\"\u003e\u003cstrong data-start=\"4782\" data-end=\"4796\"\u003eImportant:\u003c\/strong\u003e Ensure all pumps, hoses, spray guns, and fittings are rated for the intended operating pressure before returning the system to service.\u003c\/p\u003e\n\u003chr data-start=\"4934\" data-end=\"4937\"\u003e\n\u003ch2 data-section-id=\"8fimbm\" data-start=\"4939\" data-end=\"4969\"\u003eMaintenance Recommendations\u003c\/h2\u003e\n\u003cul data-start=\"4971\" data-end=\"5263\"\u003e\n\u003cli data-section-id=\"1wnojbp\" data-start=\"4971\" data-end=\"5026\"\u003eInspect the unloader periodically for leaks and wear.\u003c\/li\u003e\n\u003cli data-section-id=\"14fdjhg\" data-start=\"5027\" data-end=\"5087\"\u003eVerify proper bypass operation during routine maintenance.\u003c\/li\u003e\n\u003cli data-section-id=\"14zf8t7\" data-start=\"5088\" data-end=\"5118\"\u003eKeep the inlet filter clean.\u003c\/li\u003e\n\u003cli data-section-id=\"hle9j1\" data-start=\"5119\" data-end=\"5158\"\u003eMonitor operating pressure regularly.\u003c\/li\u003e\n\u003cli data-section-id=\"1a2go94\" data-start=\"5159\" data-end=\"5203\"\u003eReplace worn seals and fittings as needed.\u003c\/li\u003e\n\u003cli data-section-id=\"1ue21p2\" data-start=\"5204\" data-end=\"5263\"\u003eFollow recommended pressure washer maintenance schedules.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Mecline","offers":[{"title":"Default Title","offer_id":53430792978795,"sku":null,"price":99.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0917\/9201\/5723\/files\/U.M.R.KITVR54.webp?v=1782590470","url":"https:\/\/generalsprayers.com\/products\/u-m-r-kit-vr54-unloader-ready-kit-for-pumps-up-to-2900-psi-with-3-8-fpt-inlet-1-4-fpt-outlet-oem-replacement-part","provider":"GeneralSprayers","version":"1.0","type":"link"}