{"title":"Springs","description":"\u003cp\u003eEvery springs listing at Second Truck Parts is identified by brand and manufacturer part number, with its condition — new, remanufactured, or used — stated right on the listing. Part of our hardware, seals \u0026amp; service parts range. Most parts carry our 90-day warranty, returns are accepted for 30 days with an RA number, and our team verifies fitment free before you buy: send your VIN or engine serial and we confirm it fits.\u003c\/p\u003e\u003cp\u003eDon't see the exact part? Call \u003cstrong\u003e(877) 898-0737\u003c\/strong\u003e (Mon–Fri 8 AM–8 PM ET) or \u003ca href=\"\/pages\/request-a-quote\"\u003erequest a quote\u003c\/a\u003e — much of our inventory comes off salvage trucks in our own yard and may not be listed yet.\u003c\/p\u003e","products":[{"product_id":"a1614463000-genuine-freightliner-leaf-parabolic-spring","title":"Genuine Freightliner Leaf Parabolic Spring","description":"\u003cdiv class=\"std\"\u003e\n\u003ctable class=\"part-details\" style=\"width:100%; border-collapse:collapse; border:1px solid #000;\"\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #000; padding:4px 6px;\"\u003e\u003cstrong\u003eDESCRIPTION\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #000; padding:4px 6px;\"\u003eLeaf Parabolic Spring\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #000; padding:4px 6px;\"\u003e\u003cstrong\u003eCONDITION\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #000; padding:4px 6px;\"\u003eUsed\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #000; padding:4px 6px;\"\u003e\u003cstrong\u003eBRAND\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #000; padding:4px 6px;\"\u003eFreightliner\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #000; padding:4px 6px;\"\u003e\u003cstrong\u003ePART NUMBER\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #000; padding:4px 6px;\"\u003eA1614463000\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #000; padding:4px 6px;\"\u003e\u003cstrong\u003ePART NUMBERS\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #000; padding:4px 6px;\"\u003eA1614463000\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\u003cdetails style=\"margin: 10px 0; border: 1px solid #e5e5e5; border-radius: 4px; padding: 9px 11px;\"\u003e\u003csummary style=\"cursor: pointer; font-size: 16px; line-height: 1.25; font-weight: 600;\"\u003eFunction of this part\u003c\/summary\u003e\u003cdiv style=\"margin-top: 8px; font-size: 14px; line-height: 1.5;\"\u003e\u003cp\u003eThis component is part of the heavy-duty truck chassis or engine system and is designed for the loads and duty cycles found in commercial service. It is built to work with OEM mounting points and connections for the specified application.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails style=\"margin: 10px 0; border: 1px solid #e5e5e5; border-radius: 4px; padding: 9px 11px;\"\u003e\u003csummary style=\"cursor: pointer; font-size: 16px; line-height: 1.25; font-weight: 600;\"\u003eWhy this part matters\u003c\/summary\u003e\u003cdiv style=\"margin-top: 8px; font-size: 14px; line-height: 1.5;\"\u003e\u003cp\u003eChoosing a correct OEM-style part helps avoid fitment issues and keeps the truck operating as the manufacturer intended. A good used part can restore function quickly while keeping repair costs under control.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails style=\"margin: 10px 0; border: 1px solid #e5e5e5; border-radius: 4px; padding: 9px 11px;\"\u003e\u003csummary style=\"cursor: pointer; font-size: 16px; line-height: 1.25; font-weight: 600;\"\u003eAbout the brand\u003c\/summary\u003e\u003cdiv style=\"margin-top: 8px; font-size: 14px; line-height: 1.5;\"\u003e\u003cp\u003eFreightliner components support some of the most common highway tractors and straight trucks on the road, focused on uptime and ease of service.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails style=\"margin: 10px 0; border: 1px solid #e5e5e5; border-radius: 4px; padding: 9px 11px;\"\u003e\u003csummary style=\"cursor: pointer; font-size: 16px; line-height: 1.25; font-weight: 600;\"\u003eFitment \u0026amp; usage\u003c\/summary\u003e\u003cdiv style=\"margin-top: 8px; font-size: 14px; line-height: 1.5;\"\u003e\n\u003cp\u003eUsed OEM parts are a smart choice for controlling repair costs while still using original-equipment components. Always match the OEM part number(s) listed to your existing part, and consult your service manual, dealer, or technician if you are unsure about fitment.\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eNote:\u003c\/em\u003e Because this is a used component, normal signs of wear such as scratches, discoloration, or light surface corrosion may be present. Refer to the product photos and information on Second Truck Parts for the best representation of the part you will receive.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/details\u003e\n\u003c\/div\u003e","brand":"Freightliner","offers":[{"title":"Default Title","offer_id":43664609902639,"sku":"A1614463000","price":249.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0591\/7871\/3135\/files\/IMG_6076-Photoroom_509a76dc-e71a-467b-99c9-bcd323b9f156.jpg?v=1754618435"},{"product_id":"3769924c1-genuine-international-rear-spring-seat-88a-iros-4-degree","title":"Genuine International Rear Spring Seat 88a Iros -4 Degree","description":"\u003cdiv class=\"std\"\u003e\n\u003ctable class=\"part-details\" style=\"width:100%; border-collapse:collapse; border:1px solid #000;\"\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #000; padding:4px 6px;\"\u003e\u003cstrong\u003eDESCRIPTION\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #000; padding:4px 6px;\"\u003eRear Spring Seat 88a Iros -4 Degree\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #000; padding:4px 6px;\"\u003e\u003cstrong\u003eCONDITION\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #000; padding:4px 6px;\"\u003eUsed\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #000; padding:4px 6px;\"\u003e\u003cstrong\u003eBRAND\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #000; padding:4px 6px;\"\u003eInternational\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #000; padding:4px 6px;\"\u003e\u003cstrong\u003ePART NUMBER\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #000; padding:4px 6px;\"\u003e3769924C1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #000; padding: 4px 6px;\"\u003e\u003cstrong\u003ePART NUMBERS\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #000; padding: 4px 6px;\"\u003e3769924C1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\u003cdetails style=\"margin: 10px 0; border: 1px solid #e5e5e5; border-radius: 4px; padding: 9px 11px;\"\u003e\u003csummary style=\"cursor: pointer; font-size: 16px; line-height: 1.25; font-weight: 600;\"\u003eFunction of this part\u003c\/summary\u003e\u003cdiv style=\"margin-top: 8px; font-size: 14px; line-height: 1.5;\"\u003e\u003cp\u003eThe EGR (exhaust gas recirculation) system routes a controlled amount of exhaust gas back into the intake. This lowers combustion temperatures and helps reduce NOx emissions.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails style=\"margin: 10px 0; border: 1px solid #e5e5e5; border-radius: 4px; padding: 9px 11px;\"\u003e\u003csummary style=\"cursor: pointer; font-size: 16px; line-height: 1.25; font-weight: 600;\"\u003eWhy this part matters\u003c\/summary\u003e\u003cdiv style=\"margin-top: 8px; font-size: 14px; line-height: 1.5;\"\u003e\u003cp\u003eBecause EGR flow is monitored closely by the engine management system, issues with EGR valves or coolers quickly trigger fault codes and derates. Keeping the EGR system in good working order is key to reliability and emissions compliance.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails style=\"margin: 10px 0; border: 1px solid #e5e5e5; border-radius: 4px; padding: 9px 11px;\"\u003e\u003csummary style=\"cursor: pointer; font-size: 16px; line-height: 1.25; font-weight: 600;\"\u003eAbout the brand\u003c\/summary\u003e\u003cdiv style=\"margin-top: 8px; font-size: 14px; line-height: 1.5;\"\u003e\u003cp\u003eInternational\/Navistar parts are used across a wide range of medium- and heavy-duty trucks in North American fleets.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails style=\"margin: 10px 0; border: 1px solid #e5e5e5; border-radius: 4px; padding: 9px 11px;\"\u003e\u003csummary style=\"cursor: pointer; font-size: 16px; line-height: 1.25; font-weight: 600;\"\u003eFitment \u0026amp; usage\u003c\/summary\u003e\u003cdiv style=\"margin-top: 8px; font-size: 14px; line-height: 1.5;\"\u003e\n\u003cp\u003eUsed OEM parts are a smart choice for controlling repair costs while still using original-equipment components. Always match the OEM part number(s) listed to your existing part, and consult your service manual, dealer, or technician if you are unsure about fitment.\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eNote:\u003c\/em\u003e Because this is a used component, normal signs of wear such as scratches, discoloration, or light surface corrosion may be present. Refer to the product photos and information on Second Truck Parts for the best representation of the part you will receive.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/details\u003e\n\u003c\/div\u003e","brand":"International","offers":[{"title":"Default Title","offer_id":44492384010287,"sku":"3769924C1","price":55.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0591\/7871\/3135\/files\/IMG_3858-Photoroom_5bf826cc-a461-479f-8674-84f250d135df.jpg?v=1757594227"},{"product_id":"96-1273-genuine-mack-single-leaf-z-spring","title":"Genuine Mack Single Leaf Z Spring","description":"\u003cp\u003e\u003cstrong\u003ePart details\u003c\/strong\u003e\u003cbr\u003e\u003c\/p\u003e\u003ctable class=\"part-details\" style=\"width: 100%; border-collapse: collapse; border: 1px solid rgb(0, 0, 0); height: 97.947px;\"\u003e\u003ctbody\u003e\n\u003ctr style=\"height: 19.5894px;\"\u003e\n\u003ctd style=\"border: 1px solid rgb(0, 0, 0); padding: 4px 6px; width: 48.3306%; height: 19.5894px;\"\u003e\u003cstrong\u003eDESCRIPTION\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid rgb(0, 0, 0); padding: 4px 6px; width: 51.6461%; height: 19.5894px;\"\u003eSingle Leaf Z Spring\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5894px;\"\u003e\n\u003ctd style=\"border: 1px solid rgb(0, 0, 0); padding: 4px 6px; width: 48.3306%; height: 19.5894px;\"\u003e\u003cstrong\u003eCONDITION\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid rgb(0, 0, 0); padding: 4px 6px; width: 51.6461%; height: 19.5894px;\"\u003eUsed\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5894px;\"\u003e\n\u003ctd style=\"border: 1px solid rgb(0, 0, 0); padding: 4px 6px; width: 48.3306%; height: 19.5894px;\"\u003e\u003cstrong\u003eBRAND\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid rgb(0, 0, 0); padding: 4px 6px; width: 51.6461%; height: 19.5894px;\"\u003eMack\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5894px;\"\u003e\n\u003ctd style=\"border: 1px solid rgb(0, 0, 0); padding: 4px 6px; width: 48.3306%; height: 19.5894px;\"\u003e\u003cstrong\u003ePART NUMBER\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid rgb(0, 0, 0); padding: 4px 6px; width: 51.6461%; height: 19.5894px;\"\u003e96-1273\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5894px;\"\u003e\n\u003ctd style=\"border: 1px solid rgb(0, 0, 0); padding: 4px 6px; width: 48.3306%; height: 19.5894px;\"\u003e\u003cstrong\u003ePART NUMBERS\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid rgb(0, 0, 0); padding-top: 4px; padding-right: 6px; padding-bottom: 4px; width: 51.6461%; height: 19.5894px;\"\u003e96-1273; 961273, 96-1273OE, 51627, 52227, 8086647\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e","brand":"Mack","offers":[{"title":"Default Title","offer_id":44756738670639,"sku":"96-1273","price":120.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0591\/7871\/3135\/files\/IMG_1432.heic?v=1765460345"},{"product_id":"c816001a-genuine-paccar-single-c-leaf-spring-system","title":"Genuine Paccar Single C Leaf Spring System","description":"\u003cp\u003e\u003cstrong\u003ePart details\u003c\/strong\u003e\u003cbr\u003e\u003c\/p\u003e\u003ctable class=\"part-details\" style=\"width: 100%; border-collapse: collapse; border: 1px solid rgb(0, 0, 0); height: 97.947px;\"\u003e\u003ctbody\u003e\n\u003ctr style=\"height: 19.5894px;\"\u003e\n\u003ctd style=\"border: 1px solid rgb(0, 0, 0); padding: 4px 6px; width: 63.122%; height: 19.5894px;\"\u003e\u003cstrong\u003eDESCRIPTION\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid rgb(0, 0, 0); padding: 4px 6px; width: 36.8466%; height: 19.5894px;\"\u003eSingle C Leaf Spring System\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5894px;\"\u003e\n\u003ctd style=\"border: 1px solid rgb(0, 0, 0); padding: 4px 6px; width: 63.122%; height: 19.5894px;\"\u003e\u003cstrong\u003eCONDITION\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid rgb(0, 0, 0); padding: 4px 6px; width: 36.8466%; height: 19.5894px;\"\u003eUsed\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5894px;\"\u003e\n\u003ctd style=\"border: 1px solid rgb(0, 0, 0); padding: 4px 6px; width: 63.122%; height: 19.5894px;\"\u003e\u003cstrong\u003eBRAND\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid rgb(0, 0, 0); padding: 4px 6px; width: 36.8466%; height: 19.5894px;\"\u003ePaccar \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5894px;\"\u003e\n\u003ctd style=\"border: 1px solid rgb(0, 0, 0); padding: 4px 6px; width: 63.122%; height: 19.5894px;\"\u003e\u003cstrong\u003ePART NUMBER\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid rgb(0, 0, 0); padding: 4px 6px; width: 36.8466%; height: 19.5894px;\"\u003eC816001A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5894px;\"\u003e\n\u003ctd style=\"border: 1px solid rgb(0, 0, 0); padding: 4px 6px; width: 63.122%; height: 19.5894px;\"\u003e\u003cstrong\u003ePART NUMBERS\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid rgb(0, 0, 0); padding-top: 4px; padding-right: 6px; padding-bottom: 4px; width: 36.8466%; height: 19.5894px;\"\u003eC816001A; C816001, C81-6001\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e","brand":"Paccar","offers":[{"title":"Default Title","offer_id":44909828800559,"sku":"C816001A","price":299.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0591\/7871\/3135\/files\/IMG_2446.heic?v=1769459030"},{"product_id":"5072","title":"Genuine Sterling Clock Spring Contact Assembly","description":"\u003ctable style=\"width: 100%; border-collapse: collapse; border: 1px solid rgb(0, 0, 0); height: 117.536px;\" class=\"part-details\"\u003e\u003ctbody\u003e\n\u003ctr style=\"height: 19.5894px;\"\u003e\n\u003ctd style=\"border: 1px solid rgb(0, 0, 0); padding: 4px 6px; height: 19.5894px; width: 44.8673%;\"\u003e\u003cstrong\u003eDESCRIPTION\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid rgb(0, 0, 0); padding: 4px 6px; height: 19.5894px; width: 55.1012%;\"\u003eClock Spring Contact Assembly\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5894px;\"\u003e\n\u003ctd style=\"border: 1px solid rgb(0, 0, 0); padding: 4px 6px; height: 19.5894px; width: 44.8673%;\"\u003e\u003cstrong\u003eCONDITION\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid rgb(0, 0, 0); padding: 4px 6px; height: 19.5894px; width: 55.1012%;\"\u003eUsed\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5894px;\"\u003e\n\u003ctd style=\"border: 1px solid rgb(0, 0, 0); padding: 4px 6px; height: 19.5894px; width: 44.8673%;\"\u003e\u003cstrong\u003eBRAND\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid rgb(0, 0, 0); padding: 4px 6px; height: 19.5894px; width: 55.1012%;\"\u003eSterling \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5894px;\"\u003e\n\u003ctd style=\"border: 1px solid rgb(0, 0, 0); padding: 4px 6px; height: 19.5894px; width: 44.8673%;\"\u003e\u003cstrong\u003ePART NUMBER\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid rgb(0, 0, 0); padding: 4px 6px; height: 19.5894px; width: 55.1012%;\"\u003eF6HT-14A664-AC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 39.1787px;\"\u003e\n\u003ctd style=\"border: 1px solid rgb(0, 0, 0); padding: 4px 6px; height: 39.1787px; width: 44.8673%;\"\u003e\u003cstrong\u003ePART NUMBERS\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid rgb(0, 0, 0); padding: 4px 6px; height: 39.1787px; width: 55.1012%;\"\u003eF6HT-14A664-AC; F6HT14A664AC, F6HT 14A664 AC, F6HZ 14A664 AB, F6HZ-14A664-AB, F6HZ14A664AB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e","brand":"Sterling","offers":[{"title":"Default Title","offer_id":45221564874799,"sku":"F6HT-14A664-AC","price":120.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0591\/7871\/3135\/files\/3F4269FA-15B1-49F0-BA24-D1A32309BDCD.jpg?v=1778591543"}],"url":"https:\/\/secondtruckparts.com\/collections\/springs\/brand-kenworth.oembed","provider":"Second Truck Parts","version":"1.0","type":"link"}