{"product_id":"koyo-hh-radiator-1984-95-4runner-pickup","title":"Koyo HH Series Aluminum Performance Radiator (1984-95 4Runner\/Pickup)","description":"\u003ch3 data-start=\"368\" data-end=\"457\"\u003eKoyo HH Series Aluminum Performance Radiator\u003c\/h3\u003e\n\u003cp data-start=\"368\" data-end=\"457\"\u003e\u003cmeta charset=\"utf-8\"\u003eFor \u003cb id=\"docs-internal-guid-5cf58116-7fff-2eb4-3636-6edc2efbe9e5\"\u003e\u003cspan\u003e1984–1995 Toyota 4Runner \u003c\/span\u003e\u003c\/b\u003e\u0026amp;\u003cb id=\"docs-internal-guid-5cf58116-7fff-2eb4-3636-6edc2efbe9e5\"\u003e\u003cspan\u003e 1984–1995 Toyota Pickup\u003c\/span\u003e\u003c\/b\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003chr data-end=\"699\" data-start=\"696\"\u003e\n\u003ch2 data-end=\"56\" data-start=\"43\" data-section-id=\"6lznae\"\u003eOverview\u003c\/h2\u003e\n\u003cp data-start=\"58\" data-end=\"542\"\u003eThe \u003cstrong data-start=\"62\" data-end=\"122\"\u003eKoyorad HH Series 48mm All Aluminum Performance Radiator\u003c\/strong\u003e is a high-capacity direct-fit cooling upgrade designed for \u003cstrong data-start=\"182\" data-end=\"210\"\u003e1984–1995 Toyota 4Runner\u003c\/strong\u003e and \u003cstrong data-start=\"215\" data-end=\"242\"\u003e1984–1995 Toyota Pickup\u003c\/strong\u003e models equipped with the \u003cstrong\u003e22R or\u003c\/strong\u003e \u003cstrong data-start=\"268\" data-end=\"307\"\u003e22RE engine and manual transmission\u003c\/strong\u003e. Engineered as a performance replacement for the factory radiator, this radiator delivers significantly improved cooling efficiency, increased durability, and factory-style fitment without requiring modifications.\u003c\/p\u003e\n\u003cp data-start=\"544\" data-end=\"792\"\u003eBuilt around Koyorad’s advanced \u003cstrong data-start=\"576\" data-end=\"600\"\u003e48mm “HH” Hyper Core\u003c\/strong\u003e, this radiator utilizes ultra high fin density and precision aluminum construction to maximize heat transfer under demanding street, towing, off-road, and high-temperature driving conditions.\u003c\/p\u003e\n\u003cp data-start=\"794\" data-end=\"822\"\u003e\u003cstrong data-start=\"794\" data-end=\"822\"\u003eImportant Fitment Notes:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"824\" data-end=\"1054\"\u003e\n\u003cli data-section-id=\"1dxyw7g\" data-start=\"824\" data-end=\"872\"\u003eDesigned for \u003cstrong\u003e22R or\u003c\/strong\u003e \u003cstrong data-start=\"839\" data-end=\"870\"\u003e22RE-equipped vehicles only\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"h19vnq\" data-start=\"873\" data-end=\"926\"\u003e\u003cstrong data-start=\"875\" data-end=\"924\"\u003eNot compatible with 22RET turbocharged models\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli data-section-id=\"14bcv\" data-start=\"927\" data-end=\"989\"\u003eDesigned specifically for \u003cstrong data-start=\"955\" data-end=\"987\"\u003emanual transmission vehicles\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"koz3mf\" data-start=\"990\" data-end=\"1054\"\u003eDoes not include an integrated automatic transmission cooler\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"1056\" data-end=\"1133\"\u003eAutomatic transmission vehicles may still use this radiator when paired with:\u003c\/p\u003e\n\u003cul data-start=\"1135\" data-end=\"1215\"\u003e\n\u003cli data-section-id=\"1n3hgfo\" data-start=\"1135\" data-end=\"1170\"\u003eAn external transmission cooler\u003c\/li\u003e\n\u003cli data-section-id=\"4ja6nk\" data-start=\"1171\" data-end=\"1215\"\u003eA standalone transmission cooling system\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"1217\" data-end=\"1220\"\u003e\n\u003ch2 data-section-id=\"6hv43q\" data-start=\"1222\" data-end=\"1262\"\u003eHigh-Efficiency Cooling Performance\u003c\/h2\u003e\n\u003cp data-start=\"1264\" data-end=\"1416\"\u003eThe Koyorad HH Series radiator is engineered to improve cooling stability and maintain lower operating temperatures during demanding driving conditions.\u003c\/p\u003e\n\u003cp data-start=\"1418\" data-end=\"1447\"\u003ePerformance benefits include:\u003c\/p\u003e\n\u003cul data-start=\"1449\" data-end=\"1808\"\u003e\n\u003cli data-section-id=\"13ee4mh\" data-start=\"1449\" data-end=\"1505\"\u003eIncreased cooling capacity compared to OEM radiators\u003c\/li\u003e\n\u003cli data-section-id=\"12yi77l\" data-start=\"1506\" data-end=\"1558\"\u003eUltra high fin density for maximum heat transfer\u003c\/li\u003e\n\u003cli data-section-id=\"u3f5p\" data-start=\"1559\" data-end=\"1626\"\u003eImproved resistance to heat soak during towing and off-road use\u003c\/li\u003e\n\u003cli data-section-id=\"1auci1l\" data-start=\"1627\" data-end=\"1674\"\u003eStable engine temperatures under heavy load\u003c\/li\u003e\n\u003cli data-section-id=\"1g0u2uc\" data-start=\"1675\" data-end=\"1738\"\u003eEnhanced cooling efficiency for modified and stock vehicles\u003c\/li\u003e\n\u003cli data-section-id=\"3em80n\" data-start=\"1739\" data-end=\"1808\"\u003eImproved reliability in hot climates and slow-speed trail driving\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"1810\" data-end=\"1953\"\u003eThis makes the HH Series radiator an excellent solution for daily drivers, overland vehicles, trail rigs, and performance-oriented 22RE builds.\u003c\/p\u003e\n\u003chr data-start=\"1955\" data-end=\"1958\"\u003e\n\u003ch2 data-section-id=\"1tx6e6g\" data-start=\"1960\" data-end=\"1996\"\u003eAdvanced 48mm Hyper Core Design\u003c\/h2\u003e\n\u003cp data-start=\"1998\" data-end=\"2145\"\u003eAt the center of the radiator is Koyorad’s proprietary \u003cstrong data-start=\"2053\" data-end=\"2077\"\u003e48mm “HH” Hyper Core\u003c\/strong\u003e, engineered to maximize airflow efficiency and cooling performance.\u003c\/p\u003e\n\u003cp data-start=\"2147\" data-end=\"2169\"\u003eCore features include:\u003c\/p\u003e\n\u003cul data-start=\"2171\" data-end=\"2369\"\u003e\n\u003cli data-section-id=\"10imywi\" data-start=\"2171\" data-end=\"2209\"\u003e48mm thick all-aluminum Hyper Core\u003c\/li\u003e\n\u003cli data-section-id=\"l6gkpc\" data-start=\"2210\" data-end=\"2245\"\u003eUltra high-density cooling fins\u003c\/li\u003e\n\u003cli data-section-id=\"23xwjx\" data-start=\"2246\" data-end=\"2282\"\u003ePrecision tube and fin alignment\u003c\/li\u003e\n\u003cli data-section-id=\"xsi4kd\" data-start=\"2283\" data-end=\"2325\"\u003eOptimized coolant flow characteristics\u003c\/li\u003e\n\u003cli data-section-id=\"1u8iugr\" data-start=\"2326\" data-end=\"2369\"\u003eIncreased heat dissipation surface area\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"2371\" data-end=\"2472\"\u003eThe larger core design significantly improves thermal efficiency while maintaining OEM-style fitment.\u003c\/p\u003e\n\u003chr data-start=\"2474\" data-end=\"2477\"\u003e\n\u003ch2 data-section-id=\"107h8lk\" data-start=\"2479\" data-end=\"2517\"\u003ePremium All Aluminum Construction\u003c\/h2\u003e\n\u003cp data-start=\"2519\" data-end=\"2662\"\u003eKoyorad radiators are manufactured using premium aluminum materials and precision assembly techniques for long-term durability and reliability.\u003c\/p\u003e\n\u003cp data-start=\"2664\" data-end=\"2694\"\u003eConstruction features include:\u003c\/p\u003e\n\u003cul data-start=\"2696\" data-end=\"2900\"\u003e\n\u003cli data-section-id=\"1yg1kje\" data-start=\"2696\" data-end=\"2735\"\u003eFull aluminum radiator construction\u003c\/li\u003e\n\u003cli data-section-id=\"sgwt2l\" data-start=\"2736\" data-end=\"2768\"\u003eHand-assembled radiator core\u003c\/li\u003e\n\u003cli data-section-id=\"135rno2\" data-start=\"2769\" data-end=\"2798\"\u003eNocolok-R brazing process\u003c\/li\u003e\n\u003cli data-section-id=\"qu6bym\" data-start=\"2799\" data-end=\"2833\"\u003eHand TIG-welded aluminum tanks\u003c\/li\u003e\n\u003cli data-section-id=\"nhahj7\" data-start=\"2834\" data-end=\"2865\"\u003eBillet aluminum filler neck\u003c\/li\u003e\n\u003cli data-section-id=\"18yoq8c\" data-start=\"2866\" data-end=\"2900\"\u003eOE-specific mounting locations\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"2902\" data-end=\"3077\"\u003eUnlike aging factory radiators that can crack or fail over time, Koyorad’s all-aluminum construction is engineered for increased durability and long service life.\u003c\/p\u003e\n\u003chr data-start=\"3079\" data-end=\"3082\"\u003e\n\u003ch2 data-section-id=\"siaww2\" data-start=\"3084\" data-end=\"3112\"\u003eDirect-Fit Installation\u003c\/h2\u003e\n\u003cp data-start=\"3114\" data-end=\"3237\"\u003eEach Koyorad radiator is vehicle-specific and engineered for straightforward installation using factory mounting locations.\u003c\/p\u003e\n\u003cp data-start=\"3239\" data-end=\"3269\"\u003eInstallation features include:\u003c\/p\u003e\n\u003cul data-start=\"3271\" data-end=\"3472\"\u003e\n\u003cli data-section-id=\"w4r9wn\" data-start=\"3271\" data-end=\"3314\"\u003eDirect-fit replacement for OEM radiator\u003c\/li\u003e\n\u003cli data-section-id=\"35i7i6\" data-start=\"3315\" data-end=\"3347\"\u003eUses factory mounting points\u003c\/li\u003e\n\u003cli data-section-id=\"1w40gau\" data-start=\"3348\" data-end=\"3388\"\u003eNo cutting or modifications required\u003c\/li\u003e\n\u003cli data-section-id=\"q27m3m\" data-start=\"3389\" data-end=\"3441\"\u003eCompatible with factory cooling fans and shrouds\u003c\/li\u003e\n\u003cli data-section-id=\"15sat1q\" data-start=\"3442\" data-end=\"3472\"\u003eQuick bolt-in installation\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"3474\" data-end=\"3645\"\u003eAn integrated \u003cstrong data-start=\"3488\" data-end=\"3529\"\u003e1\/8-inch NPT female accessory fitting\u003c\/strong\u003e is also included for aftermarket coolant temperature sensors and gauges. A threaded plug is supplied pre-installed.\u003c\/p\u003e\n\u003chr data-start=\"3647\" data-end=\"3650\"\u003e\n\u003ch2 data-section-id=\"r68lcr\" data-start=\"3652\" data-end=\"3676\"\u003eAdditional Features\u003c\/h2\u003e\n\u003cul data-start=\"3678\" data-end=\"3885\"\u003e\n\u003cli data-section-id=\"j1z9na\" data-start=\"3678\" data-end=\"3717\"\u003eKoyorad “HH” Series 48mm Hyper Core\u003c\/li\u003e\n\u003cli data-section-id=\"nhahj7\" data-start=\"3718\" data-end=\"3749\"\u003eBillet aluminum filler neck\u003c\/li\u003e\n\u003cli data-section-id=\"1exv1xn\" data-start=\"3750\" data-end=\"3792\"\u003eIntegrated 1\/8-inch NPT accessory port\u003c\/li\u003e\n\u003cli data-section-id=\"23xwjx\" data-start=\"3793\" data-end=\"3829\"\u003ePrecision tube and fin alignment\u003c\/li\u003e\n\u003cli data-section-id=\"1y987ag\" data-start=\"3830\" data-end=\"3885\"\u003eDesigned for improved long-term cooling reliability\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"3887\" data-end=\"3890\"\u003e\n\u003ch2 data-section-id=\"izx4vd\" data-start=\"3892\" data-end=\"3915\"\u003eIdeal Applications\u003c\/h2\u003e\n\u003cul data-start=\"3917\" data-end=\"4092\"\u003e\n\u003cli data-section-id=\"1jqn3rs\" data-start=\"3917\" data-end=\"3934\"\u003eDaily driving\u003c\/li\u003e\n\u003cli data-section-id=\"124ninp\" data-start=\"3935\" data-end=\"3967\"\u003eOverland and off-road builds\u003c\/li\u003e\n\u003cli data-section-id=\"1kgu6z1\" data-start=\"3968\" data-end=\"3991\"\u003eTowing applications\u003c\/li\u003e\n\u003cli data-section-id=\"1tz2gph\" data-start=\"3992\" data-end=\"4017\"\u003eHot climate operation\u003c\/li\u003e\n\u003cli data-section-id=\"14c3wn9\" data-start=\"4018\" data-end=\"4054\"\u003ePerformance-oriented 22RE builds\u003c\/li\u003e\n\u003cli data-section-id=\"1dojq5g\" data-start=\"4055\" data-end=\"4092\"\u003eOEM radiator replacement upgrades\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"4094\" data-end=\"4097\"\u003e\n\u003ch2 data-section-id=\"1vuky1f\" data-start=\"4099\" data-end=\"4125\"\u003eVehicle Compatibility\u003c\/h2\u003e\n\u003cp data-end=\"4289\" data-start=\"4253\" data-section-id=\"26zh7i\"\u003e\u003cstrong\u003e1984–1989 Toyota 1st Gen 4Runner\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-end=\"4367\" data-start=\"4290\"\u003e\n\u003cli data-end=\"4311\" data-start=\"4290\" data-section-id=\"1u02zqk\"\u003e22R \/ 22RE Engine\u003c\/li\u003e\n\u003cli data-end=\"4340\" data-start=\"4312\" data-section-id=\"1wquc0g\"\u003eManual Transmission Only\u003c\/li\u003e\n\u003cli data-end=\"4367\" data-start=\"4341\" data-section-id=\"1pnr8rn\"\u003e2WD and 4WD Compatible\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-end=\"4411\" data-start=\"4369\" data-section-id=\"1g0jjp5\"\u003e\u003cstrong\u003e1984–1988 Toyota 2nd Gen Toyota Pickup\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-end=\"4489\" data-start=\"4412\"\u003e\n\u003cli data-end=\"4433\" data-start=\"4412\" data-section-id=\"1u02zqk\"\u003e22R \/ 22RE Engine\u003c\/li\u003e\n\u003cli data-end=\"4462\" data-start=\"4434\" data-section-id=\"1wquc0g\"\u003eManual Transmission Only\u003c\/li\u003e\n\u003cli data-end=\"4489\" data-start=\"4463\" data-section-id=\"1pnr8rn\"\u003e2WD and 4WD Compatible\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-end=\"4527\" data-start=\"4491\" data-section-id=\"1b663c\"\u003e\u003cstrong\u003e1990–1995 Toyota 2nd Gen 4Runner\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-end=\"4605\" data-start=\"4528\"\u003e\n\u003cli data-end=\"4549\" data-start=\"4528\" data-section-id=\"1u02zqk\"\u003e22R \/ 22RE Engine\u003c\/li\u003e\n\u003cli data-end=\"4578\" data-start=\"4550\" data-section-id=\"1wquc0g\"\u003eManual Transmission Only\u003c\/li\u003e\n\u003cli data-end=\"4605\" data-start=\"4579\" data-section-id=\"1pnr8rn\"\u003e2WD and 4WD Compatible\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-end=\"4649\" data-start=\"4607\" data-section-id=\"b6sm6d\"\u003e\u003cstrong\u003e1989–1995 Toyota 3rd Gen Toyota Pickup\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-end=\"4727\" data-start=\"4650\"\u003e\n\u003cli data-end=\"4671\" data-start=\"4650\" data-section-id=\"1u02zqk\"\u003e22R \/ 22RE Engine\u003c\/li\u003e\n\u003cli data-end=\"4700\" data-start=\"4672\" data-section-id=\"1wquc0g\"\u003eManual Transmission Only\u003c\/li\u003e\n\u003cli data-end=\"4727\" data-start=\"4701\" data-section-id=\"1pnr8rn\"\u003e2WD and 4WD Compatible\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-end=\"4743\" data-start=\"4729\" data-section-id=\"16wf0o9\"\u003e\u003cstrong\u003eExclusions\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-end=\"4793\" data-start=\"4744\"\u003e\n\u003cli data-end=\"4793\" data-start=\"4744\" data-section-id=\"109ahvq\"\u003eNot compatible with 22RET turbocharged models\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"4440\" data-end=\"4443\"\u003e\n\u003ch2 data-section-id=\"1ajidt9\" data-start=\"4445\" data-end=\"4466\"\u003eWhat Is Included\u003c\/h2\u003e\n\u003cul data-start=\"4468\" data-end=\"4583\"\u003e\n\u003cli data-section-id=\"g26z0q\" data-start=\"4468\" data-end=\"4516\"\u003eKoyorad HH Series 48mm all-aluminum radiator\u003c\/li\u003e\n\u003cli data-section-id=\"4l6bsq\" data-start=\"4517\" data-end=\"4583\"\u003ePre-installed threaded plug for 1\/8-inch NPT accessory fitting\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0726\/6005\/8421\/files\/Screenshot2024-07-02183021.png.90a5f8d151fce7d1592fe277e8ea7978.png?v=1778766464\" alt=\"\" width=\"523\" height=\"70\"\u003e\u003c\/p\u003e","brand":"Koyo","offers":[{"title":"Default Title","offer_id":52879137243445,"sku":"393","price":435.8,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0726\/6005\/8421\/files\/ChatGPTImageMay13_2026_07_43_39PM.png?v=1778716058","url":"https:\/\/preserverad.com\/products\/koyo-hh-radiator-1984-95-4runner-pickup","provider":"Preserve Rad","version":"1.0","type":"link"}