{"product_id":"for-13-15-18-eaton-fuller-transmissions-air-line-kit-faster-shifts","title":"for 13 15 18 Eaton Fuller Transmissions Air Line Kit - Faster Shifts","description":"\u003cp\u003eIn this review the focus is on a simple replacement kit designed to restore proper transmission air pressure on Eaton Fuller style gearboxes. The kit is aimed at owners and technicians who need a straightforward fix for slow or clumsy air shifting: it replaces old fittings and installs four new 12in 5\/32 air lines with modern push-in fittings and color coding so the valve receives more air volume. The single biggest reason to consider this kit is that it targets the common cause of slow shifts and synchronizer wear by increasing airflow and removing deteriorated or over-tightened fittings.\u003c\/p\u003e\n\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n \u003cli\u003e\n\u003cstrong\u003eUpdated air volume:\u003c\/strong\u003e Replacing the original line with a high-capacity 4-color air line improves air delivery to the transmission shift valve, which can produce faster, more positive shifts.\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003ePush-in fittings:\u003c\/strong\u003e New push-in fittings let the hose be inserted without risk of over-tightening and collapsing the line, preserving unrestricted airflow.\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eFour 12in lines included:\u003c\/strong\u003e The kit supplies four ready-length 12in 5\/32 air lines so installers do not need to measure and cut multiple runs for the shift knob to valve connection.\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eDurable material:\u003c\/strong\u003e Made of flexible, repeat-bend resistant material that resists creasing and aims to reduce failures from worn or brittle tubing.\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eSimple replacement:\u003c\/strong\u003e The kit replaces all fittings and lines between the shift knob and transmission valve, making the update straightforward for a technician or competent owner.\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eProtects transmission:\u003c\/strong\u003e By addressing low transmission air pressure, the kit helps reduce synchronizer wear and the risk of costly transmission damage over time.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eWho It's For\u003c\/h2\u003e\n\u003cp\u003eThis kit is best for truck owners and fleet technicians who operate Eaton Fuller 13, 15 or 18 speed transmissions and are experiencing slow or harsh shifts, noise in gears, or suspect low air pressure to the shift valve. It is also useful for anyone doing routine maintenance who prefers to replace aged soft lines and outdated fittings before problems develop.\u003c\/p\u003e\n\n\u003cp\u003eIt is less suitable for owners who need a full custom air system with different lengths or nonstandard fittings; those customers should source custom hoses or consult a transmission specialist. Also, if the transmission problem is mechanical rather than air supply related, this kit will not address internal gearbox faults.\u003c\/p\u003e\n\n\u003ch2\u003ePros \u0026amp; Cons\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003ePros\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n \u003cli\u003eClear improvement in shift speed and responsiveness when low air volume was the issue.\u003c\/li\u003e\n \u003cli\u003ePush-in fittings reduce the risk of line collapse from over-tightening compared with old-style fittings.\u003c\/li\u003e\n \u003cli\u003eFour color-coded lines simplify routing and reduce installation time.\u003c\/li\u003e\n \u003cli\u003eFlexible, durable material stands up to repeated bending without creasing.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eCons\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n \u003cli\u003eSome customers reported mixed quality, so fit or finish may vary and inspectors should confirm parts on receipt.\u003c\/li\u003e\n \u003cli\u003eThe kit replaces lines and fittings only and will not fix internal transmission issues unrelated to air supply.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable\u003e\n \u003ctr\u003e\n\u003ctd\u003eCompatible transmissions\u003c\/td\u003e\n\u003ctd\u003e13, 15, 18 Eaton Fuller style\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eIncluded air lines\u003c\/td\u003e\n\u003ctd\u003e4 x 12in 5\/32 lines\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eFittings\u003c\/td\u003e\n\u003ctd\u003eNew push-in style air fittings\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003eFlexible, repeated-bend resistant tubing\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eColors\u003c\/td\u003e\n\u003ctd\u003e4-color air line set for easy routing\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003ePrimary benefit\u003c\/td\u003e\n\u003ctd\u003eIncreases air volume to transmission shift valve\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eOur Verdict\u003c\/h2\u003e\n\u003cp\u003eThe kit is a practical, cost-effective way to restore proper air delivery for Eaton Fuller 13\/15\/18 speed transmissions and is good value for anyone facing slow or noisy shifts caused by low air pressure. It is quick to install, reduces the risk of line collapse with push-in fittings, and can prevent further synchronizer wear when the root cause is degraded lines or fittings.\u003c\/p\u003e\n\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eWill this kit fix any shifting problem?\u003c\/strong\u003e\u003cbr\u003eIt will help where shifting issues are caused by low air volume or collapsed\/old fittings; it will not repair internal mechanical transmission failures.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eAre the fittings reusable?\u003c\/strong\u003e\u003cbr\u003eThe kit includes new push-in fittings designed for single reliable installation; reuse of old collapsed fittings is not recommended.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eIs this compatible with other 5\/32 systems?\u003c\/strong\u003e\u003cbr\u003eYes, it is intended for Eaton Fuller style systems using 5\/32 tubing and should work where that size and connector type are used.\u003c\/p\u003e","brand":"Foruly","offers":[{"title":"Default Title","offer_id":48227792027867,"sku":"B0BYNMN385","price":45.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0724\/1043\/1707\/files\/712BerC_JjL._AC_SL1500.jpg?v=1770826793","url":"https:\/\/gearmusthave.com\/products\/for-13-15-18-eaton-fuller-transmissions-air-line-kit-faster-shifts","provider":"GearMustHave","version":"1.0","type":"link"}