{"product_id":"aluminum-coolant-overflow-expansion-tank-for-ford-excursion-2000-2003-7-3l","title":"Aluminum Coolant Overflow Expansion Tank for Ford Excursion (2000-2003) 7.3L","description":"\u003ch2 style=\"font-size: clamp(18px, 3vw, 21px); margin-bottom: 15px; line-height: 1.3;\"\u003eHeavy-Duty Aluminum Coolant Overflow Expansion Tank for 2000-2003 Ford Excursion (U137)\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat it Does:\u003c\/strong\u003e The Aluminum Coolant Overflow Expansion Tank replaces the failure-prone factory plastic degas reservoir on the 2000-2003 Ford Excursion to eliminate coolant leaks and maintain critical cooling system pressure under heavy loads.\u003c\/p\u003e\n\n\u003ch3\u003eThe Stock Ford Excursion Plastic Degas Bottle Failure\u003c\/h3\u003e\n\u003cp\u003eThe factory nylon coolant reservoir on the \u003cstrong\u003eU137\u003c\/strong\u003e platform is subjected to severe underhood thermal cycling, intense engine bay vibration, and sustained pressure spikes. Over decades of service, UV exposure and high coolant temperatures oxidize and embrittle the factory molded plastic. Micro-fractures routinely propagate along the sonic-welded mold seams, hose barbs, mounting tabs, and threaded neck. Under heavy towing duty cycles with the \u003cstrong\u003e7.3L Powerstroke\u003c\/strong\u003e, continuous pressure cycling causes the aging plastic to warp, weeping pressurized fluid or splitting catastrophically, which leads to coolant loss, air ingress, and immediate engine overheating.\u003c\/p\u003e\n\n\u003ch3\u003eThe Engineering Solution\u003c\/h3\u003e\n\u003cp\u003eEngineered as a permanent structural upgrade, this heavy-duty expansion degas tank is fabricated from lightweight, corrosion-resistant sheet aluminum and fully TIG-welded for uncompromising burst strength. Each unit undergoes multi-stage pneumatic leak testing to help ensure zero seam porosity under severe operating pressures. Billet aluminum hose barbs and reinforced mounting brackets eliminate the shear points that destroy OEM plastic tanks. Designed to drop directly into the factory mounting location, it preserves original routing for primary and bypass cooling lines while replacing the yellowed stock container with a clean, brushed metallic finish. Includes a calibrated pressure cap.\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;\"\u003e2000-2003 Ford Excursion\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\u003e7.3L Powerstroke\u003c\/strong\u003e Turbo Diesel \/ \u003cstrong\u003eU137\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;\"\u003e250 hp \/ 525 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\n\u003cstrong\u003e2C3Z-8A080-AA\u003c\/strong\u003e, \u003cstrong\u003eXC3Z-8A080-AA\u003c\/strong\u003e\n\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\u003e2000-2003 Ford Excursion Limited (7.3L V8 Turbo Diesel)\u003c\/li\u003e\n  \u003cli\u003e2000-2003 Ford Excursion XLT (7.3L V8 Turbo Diesel)\u003c\/li\u003e\n  \u003cli\u003e2003 Ford Excursion Eddie Bauer (7.3L V8 Turbo Diesel)\u003c\/li\u003e\n  \u003cli\u003eNote: Fits 7.3L Powerstroke diesel applications only; does not fit 2003-2005 6.0L Powerstroke or Triton gasoline models.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003ch4\u003eDoes this fit the U137 Excursion?\u003c\/h4\u003e\n\u003cp\u003eYes, this is a direct fit for the 2000-2003 Ford Excursion equipped with the \u003cstrong\u003e7.3L Powerstroke\u003c\/strong\u003e engine.\u003c\/p\u003e\n\n\u003ch4\u003eDoes this expansion tank fit the 6.0L Powerstroke diesel models?\u003c\/h4\u003e\n\u003cp\u003eNo, this tank is engineered exclusively for the 7.3L diesel cooling circuit and does not clear the altered brackets and intake routing found on 6.0L engines.\u003c\/p\u003e\n\n\u003ch3\u003eThe Ford Heavy-Duty Caliber\u003c\/h3\u003e\n\u003cp\u003eBuilt to handle the torturous thermal loads of long highway hauls, high GCWR towing, and off-grid expeditions, this TIG-welded aluminum expansion tank ensures cooling reliability where factory plastics fail.\u003c\/p\u003e","brand":"VelocityMax","offers":[{"title":"Default Title","offer_id":67524671373560,"sku":"DS-E9J7FU9C1","price":138.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0800\/1290\/2648\/files\/aluminum-coolant-overflow-expansion-tank-for-ford-excursion-2000-2003-7-3l-1.webp?v=1790462740","url":"https:\/\/performancechiptuning.com\/products\/aluminum-coolant-overflow-expansion-tank-for-ford-excursion-2000-2003-7-3l","provider":"Performance Chip Tuning","version":"1.0","type":"link"}