{"product_id":"rt1043-coolant-reservoir-dr104004","title":"Coolant Reservoir \/ Surge Tank \/ with caps \u0026 sensors 575.1043 or DR104004","description":"\u003cp\u003eThe rTech Black Label RT1043 Coolant Reservoir is a heavy-duty replacement designed for compatible Kenworth and Peterbilt cooling-system applications.\u003c\/p\u003e\n\u003cp\u003eBuilt from durable molded polymer, the RT1043 provides the reservoir body, mounting layout, and hose connection points required for compatible installations while supporting normal coolant expansion and recovery within the cooling system.\u003c\/p\u003e\n\u003cp\u003eThis assembly is configured for the DR104004 \/ CP237001 reservoir family and is designed for demanding commercial truck service.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eBuilt for uptime. Built for serious trucks.\u003c\/strong\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003ch5\u003e\u003cstrong\u003eFeatures \u0026amp; Benefits\u003c\/strong\u003e\u003c\/h5\u003e\n\u003cul\u003e\n\u003cli\u003eHeavy-duty molded polymer reservoir\u003c\/li\u003e\n\u003cli\u003eDesigned for compatible Kenworth and Peterbilt applications\u003c\/li\u003e\n\u003cli\u003eVehicle-specific mounting layout\u003c\/li\u003e\n\u003cli\u003eOE-style hose connection locations\u003c\/li\u003e\n\u003cli\u003eSupports normal coolant expansion and recovery\u003c\/li\u003e\n\u003cli\u003eDurable construction for under-hood commercial vehicle environments\u003c\/li\u003e\n\u003cli\u003eDesigned for straightforward replacement\u003c\/li\u003e\n\u003cli\u003eFleet-approved Black Label quality\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch5\u003e\u003cstrong\u003erTech Product Specifications\u003cbr\u003e\u003c\/strong\u003e\u003c\/h5\u003e\n\u003cul\u003e\n\u003cli\u003erTech Part Number: RT1043\u003c\/li\u003e\n\u003cli\u003eProduct Type: Coolant Reservoir \/ Surge Tank\u003c\/li\u003e\n\u003cli\u003eMaterial: Molded Polymer \u003c\/li\u003e\n\u003cli\u003eInstallation: Vehicle-Specific\u003c\/li\u003e\n\u003cli\u003eSeries: rTech Black Label\u003cstrong\u003e\u003cbr\u003e\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch5\u003e\u003cstrong\u003eVehicle Applications\u003c\/strong\u003e\u003c\/h5\u003e\n\u003cp\u003eDesigned as an aftermarket replacement for select Kenworth and Peterbilt cooling-system applications.\u003c\/p\u003e\n\u003cp\u003eCurrent application and reference data associates the DR104004 \/ 575.1043 family with select:\u003cstrong\u003e\u003cbr\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eKenworth T680\u003c\/li\u003e\n\u003cli\u003eKenworth T880\u003c\/li\u003e\n\u003cli\u003ePeterbilt 579\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eAutomann 575.1043 is catalogued for Kenworth T680\/T880 and Peterbilt 579 applications. \u003c\/p\u003e\n\u003cp\u003eCooling-system configurations can vary by chassis, engine, model year, and reservoir assembly. Verify fitment by VIN or existing reservoir number before ordering.\u003c\/p\u003e\n\u003ch5\u003e\u003cstrong\u003eDirect Cross References\u003c\/strong\u003e\u003c\/h5\u003e\n\u003cul\u003e\n\u003cli\u003erTech Black Label: RT1043\u003c\/li\u003e\n\u003cli\u003eAutomann: 575.1043\u003c\/li\u003e\n\u003cli\u003ePACCAR: DR104004\u003c\/li\u003e\n\u003cli\u003ePACCAR: DR104002\u003c\/li\u003e\n\u003cli\u003ePACCAR: DR104003 \u003c\/li\u003e\n\u003cli\u003e PACCAR: CP237001\u003c\/li\u003e\n\u003cli\u003eTRP: ST4004\u003c\/li\u003e\n\u003cli\u003eReference: ST4002\u003c\/li\u003e\n\u003cli\u003eReference: 29070289\u003c\/li\u003e\n\u003cli\u003eDorman: 603-5570\u003cstrong\u003e\u003cbr\u003e\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eDR104004 is documented as the current PACCAR surge-tank assembly number replacing DR104002, CP237001, and DR104003. Automann 575.1043 also cross-references to Dorman 603-5570.\u003c\/p\u003e\n\u003cp\u003eCross-reference numbers and manufacturer names are provided for identification and fitment purposes only. All trademarks are the property of their respective owners. rTech Black Label products are independent aftermarket replacement parts and are not manufactured, sponsored, endorsed, or approved by the referenced manufacturers. Always verify fitment before installation.\u003cbr\u003e\u003c\/p\u003e\n\u003ch5\u003e\u003cstrong\u003eWhy the Coolant Reservoir Matters\u003c\/strong\u003e\u003c\/h5\u003e\n\u003cp\u003eThe coolant reservoir provides space for coolant expansion and recovery as engine temperature changes.\u003c\/p\u003e\n\u003cp\u003eA damaged or leaking reservoir can contribute to:\u003cstrong\u003e\u003cbr\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eCoolant loss\u003c\/li\u003e\n\u003cli\u003eAir entering the cooling system\u003c\/li\u003e\n\u003cli\u003eReduced coolant reserve\u003c\/li\u003e\n\u003cli\u003eCooling-system leaks\u003c\/li\u003e\n\u003cli\u003eIncreased risk of overheating if coolant loss continues\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eFor commercial fleets, replacing a damaged reservoir early can help prevent a much larger cooling-system problem.\u003c\/p\u003e","brand":"rTech HDR INC.","offers":[{"title":"Default Title","offer_id":52265809805613,"sku":null,"price":399.99,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0949\/3463\/0701\/files\/575.1043front_6660dfda-de72-4bbb-83f9-368d3727096d.jpg?v=1785322621","url":"https:\/\/parts.rtechhdr.ca\/products\/rt1043-coolant-reservoir-dr104004","provider":"rTech HDR INC.","version":"1.0","type":"link"}