{"product_id":"aluminum-coolant-overflow-expansion-tank-for-honda-civic-1996-2000-1-6l","title":"Aluminum Coolant Overflow Expansion Tank for Honda Civic (1996-2000) 1.6L","description":"\u003ch2 style=\"font-size: clamp(18px, 3vw, 21px); margin-bottom: 15px; line-height: 1.3;\"\u003eDirect-Fit Aluminum Coolant Overflow Expansion Tank for 1996-2000 Honda Civic (EK\/EJ)\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat it Does:\u003c\/strong\u003e The Aluminum Coolant Overflow Expansion Tank replaces the brittle factory plastic overflow reservoir on the 1996-2000 Honda Civic to eliminate coolant loss, seam splitting, and heat-induced plastic fatigue.\u003c\/p\u003e\n\n\u003ch3\u003eThe Stock Honda Civic Coolant Reservoir Degradation\u003c\/h3\u003e\n\u003cp\u003eDecades of continuous thermal cycling inside the tightly packed \u003cstrong\u003eEK\/EJ\u003c\/strong\u003e engine bay degrade the factory blow-molded polyethylene reservoir. Subjected to sustained under-hood temperatures and UV exposure, the stock plastic dries out, yellows, and becomes severely brittle. This degradation routinely causes cracked mounting tabs, split seam lines, and distorted neck threading, resulting in evaporative coolant loss, air ingress into the recovery circuit, and unmetered coolant weeping near the accessory belts.\u003c\/p\u003e\n\n\u003ch3\u003eThe Engineering Solution\u003c\/h3\u003e\n\u003cp\u003eFabricated from heavy-duty \u003cstrong\u003eAA5052 aluminum\u003c\/strong\u003e, this expansion tank provides superior resistance to mechanical vibration, elevated coolant temperatures, and chemical oxidation. Every joint is 100% precision TIG welded and pressure tested to ensure total fluid containment without ballooning or seam failure. Designed to match the factory geometry, it integrates direct-fit mounting brackets and stock-diameter overflow hose barbs for seamless drop-in alignment with your factory radiator siphon line. A billet-style aluminum threaded cap with a resilient internal O-ring seal replaces the fragile push-on stock cap, and the durable black finish provides lasting corrosion protection.\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;\"\u003e1996-2000 Honda Civic\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;\"\u003e\n\u003cstrong\u003eD16\u003c\/strong\u003e, \u003cstrong\u003eB16\u003c\/strong\u003e \/ \u003cstrong\u003eEK\u003c\/strong\u003e, \u003cstrong\u003eEJ\u003c\/strong\u003e\n\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;\"\u003e106–160 hp \/ 103–111 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;\"\u003e\u003cstrong\u003e19101-P2A-000\u003c\/strong\u003e\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\u003e1996-2000 Honda Civic DX \/ LX \/ EX 1.6L\u003c\/li\u003e\n  \u003cli\u003e1996-2000 Honda Civic HX 1.6L\u003c\/li\u003e\n  \u003cli\u003e1999-2000 Honda Civic Si 1.6L\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003ch4\u003eDoes this fit the EK\/EJ Civic?\u003c\/h4\u003e\n\u003cp\u003eYes, this is a direct fit for the 1996-2000 Honda Civic equipped with the \u003cstrong\u003eD16\u003c\/strong\u003e or \u003cstrong\u003eB16\u003c\/strong\u003e engine.\u003c\/p\u003e\n\n\u003ch4\u003eDoes this tank retain the factory non-pressurized recovery function?\u003c\/h4\u003e\n\u003cp\u003eYes, it utilizes the factory siphon plumbing layout to expand and recover coolant seamlessly without altering system operating pressure.\u003c\/p\u003e\n\n\u003ch3\u003eThe Honda Performance Standard\u003c\/h3\u003e\n\u003cp\u003eHigh-revving \u003cstrong\u003eD-Series\u003c\/strong\u003e and \u003cstrong\u003eB-Series\u003c\/strong\u003e powertrains generate sharp under-hood temperature spikes during spirited track and street use. Upgrading to all-aluminum cooling hardware secures closed-loop thermal stability, preventing boil-overs and protecting critical head gasket sealing under sustained high-RPM operation.\u003c\/p\u003e","brand":"VelocityMax","offers":[{"title":"Default Title","offer_id":67524670456056,"sku":"DS-E664BVUOP","price":83.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0800\/1290\/2648\/files\/aluminum-coolant-overflow-expansion-tank-for-honda-civic-1996-2000-1-6l-1.webp?v=1790462686","url":"https:\/\/performancechiptuning.com\/products\/aluminum-coolant-overflow-expansion-tank-for-honda-civic-1996-2000-1-6l","provider":"Performance Chip Tuning","version":"1.0","type":"link"}