{"product_id":"engine-block-heater-for-jeep-grand-cherokee-2005-2023-5-7l-hemi","title":"Engine Block Heater for Jeep Grand Cherokee (2005-2023) 5.7L Hemi","description":"\u003ch2 style=\"font-size: clamp(18px, 3vw, 21px); margin-bottom: 15px; line-height: 1.3;\"\u003eDirect-Fit Cold Climate Engine Block Heater for 2005-2023 Jeep Grand Cherokee (WK, WK2, WL)\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat it Does:\u003c\/strong\u003e The Engine Block Heater pre-warms the engine coolant on 2005-2023 Jeep Grand Cherokee models to reduce cold-start wear and accelerate cabin warmup in freezing temperatures.\u003c\/p\u003e\n\n\u003ch3\u003eThe Stock Jeep Grand Cherokee Cold-Start Vulnerability\u003c\/h3\u003e\n\u003cp\u003eSub-zero ambient temperatures pose severe operational hazards to the \u003cstrong\u003e5.7L Hemi V8\u003c\/strong\u003e engine block. During sub-freezing cold starts, engine oil viscosity thickens dramatically, delaying oil pressure delivery to critical top-end valvetrain components like hydraulic roller lifters and Multi-Displacement System (MDS) solenoids. This friction-heavy dry startup accelerates bore scuffing, drains battery reserves via excessive starter motor amp draw, and severely prolongs closed-loop ECU fuel mapping, resulting in unburned fuel wash on cylinder walls.\u003c\/p\u003e\n\n\u003ch3\u003eThe Engineering Solution\u003c\/h3\u003e\n\u003cp\u003eThis 600-watt, 120-volt immersion heating element installs directly into the core freeze plug port of the iron engine block, transferring thermal energy straight into the cooling jacket. Constructed with corrosion-resistant brass and high-grade copper heating loops, the element sustains optimal coolant temperature to maintain low oil kinematic viscosity before cranking. A heavy-duty, weather-shielded 7-foot harness routes safely past the exhaust manifolds, delivering direct grid power to ensure rapid thermal dissipation, immediate cabin heat, and zero cold-crank hesitation.\u003c\/p\u003e\n\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cdiv style=\"overflow-x: auto; margin-bottom: 20px;\"\u003e\n  \u003ctable width=\"100%\" style=\"border-collapse: collapse; border: 1px solid #e0e0e0; font-size: 14px; min-width: 300px;\"\u003e\n    \u003ctr style=\"background-color: #f9f9f9;\"\u003e\n\u003cth style=\"padding:10px; text-align: left; border: 1px solid #e0e0e0;\"\u003eFitment\u003c\/th\u003e\n\u003ctd style=\"padding:10px; border: 1px solid #e0e0e0;\"\u003e2005-2023 Jeep Grand Cherokee\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth style=\"padding:10px; text-align: left; border: 1px solid #e0e0e0;\"\u003eEngine \/ Chassis\u003c\/th\u003e\n\u003ctd style=\"padding:10px; border: 1px solid #e0e0e0;\"\u003e5.7L Hemi V8 (EZB, EZD, EZH) \/ WK, WK2, WL\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr style=\"background-color: #f9f9f9;\"\u003e\n\u003cth style=\"padding:10px; text-align: left; border: 1px solid #e0e0e0;\"\u003eStock Output\u003c\/th\u003e\n\u003ctd style=\"padding:10px; border: 1px solid #e0e0e0;\"\u003e330-360 hp \/ 375-390 lb-ft\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth style=\"padding:10px; text-align: left; border: 1px solid #e0e0e0;\"\u003eReplaces OEM Part #\u003c\/th\u003e\n\u003ctd style=\"padding:10px; border: 1px solid #e0e0e0;\"\u003eN\/A\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003ch3\u003eCompatibility\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e2005-2023 Jeep Grand Cherokee 5.7L Hemi V8 (All Trims)\u003c\/li\u003e\n  \u003cli\u003eDoes not fit 3.0L EcoDiesel V6 models\u003c\/li\u003e\n  \u003cli\u003eDoes not fit 3.6L Pentastar or 3.7L PowerTech V6 models\u003c\/li\u003e\n  \u003cli\u003eDoes not fit 4.7L V8 models\u003c\/li\u003e\n  \u003cli\u003eDoes not fit 6.1L, 6.4L SRT, or 6.2L Supercharged Trackhawk V8 models\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003ch4\u003eDoes this fit the WK, WK2, and WL Grand Cherokee?\u003c\/h4\u003e\n\u003cp\u003eYes, this is a direct fit for the 2005-2023 Jeep Grand Cherokee equipped with the 5.7L Hemi V8 engine.\u003c\/p\u003e\n\n\u003ch4\u003eDoes installation require draining the cooling system?\u003c\/h4\u003e\n\u003cp\u003eYes, installing the immersion cartridge requires removing a factory engine block freeze plug, necessitating a partial or full coolant flush.\u003c\/p\u003e\n\n\u003ch3\u003eThe Jeep Standard\u003c\/h3\u003e\n\u003cp\u003eEngineered to handle extreme winter duties, this heavy-duty block heater preserves starter motor longevity and battery crank reserves, ensuring reliable high-torque towing and all-weather trail capability regardless of sub-zero temperatures.\u003c\/p\u003e","brand":"VelocityMax","offers":[{"title":"Default Title","offer_id":67540364755192,"sku":"DS-EL3JVWVYM","price":175.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0800\/1290\/2648\/files\/engine-block-heater-for-jeep-grand-cherokee-2005-2023-5-7l-hemi-1.jpg?v=1790659360","url":"https:\/\/performancechiptuning.com\/es\/products\/engine-block-heater-for-jeep-grand-cherokee-2005-2023-5-7l-hemi","provider":"Performance Chip Tuning","version":"1.0","type":"link"}