{"product_id":"kyb-gas-a-just-rear-monotube-shock-absorber-kyb5540004-for-lexus-is","title":"KYB Gas-a-Just Rear Monotube Shock Absorber KYB5540004 for Lexus IS","description":"The Gas-a-just monotube shock absorber is available as an OE monotube replacement to restore your vehicles original capabilities. The KYB Gas-a-just has two separate working chambers: An air-free hydraulic piston and valve area for responsiveness and control, and a second high-pressure nitrogen gas area with a floating piston that provides a comfortable ride during normal driving and adds instant performance on demand.\n\u003cul\u003e\n  \u003cli\u003eElectronic safety systems depend on the suspension, brakes and tires operating as the vehicle manufacturer intended. The KYB Gas-a-just helps keep Electronic Safety Systems performing as designed.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eRestore the original handling characteristics of your vehicle with the KYB Gas-a-Just rear monotube shock absorber, part number KYB5540004. Designed as an OE-style replacement, this automotive shock absorber helps maintain responsive control, stable handling, and a comfortable ride during everyday driving. Its monotube design separates the working chambers to provide consistent damping performance across changing road and driving conditions.\u003c\/p\u003e\n\n\u003cp\u003eThe KYB Gas-a-Just uses an air-free hydraulic piston and valve area for precise response, along with a separate high-pressure nitrogen gas chamber and floating piston. This configuration helps reduce aeration and provides additional damping performance when driving demands increase. The result is improved suspension control during acceleration, cornering, braking, and uneven-road travel. Replacing worn shocks can also help the vehicle’s electronic safety systems operate as intended when used with properly functioning brakes, tires, and suspension components.\u003c\/p\u003e\n\n\u003ch3\u003eKey Features and Performance Benefits\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eMonotube Design: Separate hydraulic and high-pressure nitrogen chambers help deliver consistent damping and responsive control.\u003c\/li\u003e\n  \u003cli\u003eOE Replacement Configuration: Designed to restore the vehicle’s original suspension capabilities and handling balance.\u003c\/li\u003e\n  \u003cli\u003eHigh-Pressure Nitrogen Technology: Floating-piston construction helps reduce fluid aeration and supports reliable performance.\u003c\/li\u003e\n  \u003cli\u003eElectronic Safety System Support: Helps maintain suspension performance required for electronic safety systems to function as designed.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eProduct Specifications and Technical Data\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eBrand: KYB\u003c\/li\u003e\n  \u003cli\u003ePart Number: KYB5540004\u003c\/li\u003e\n  \u003cli\u003eProduct Type: Rear monotube shock absorber\u003c\/li\u003e\n  \u003cli\u003eApplication: Automotive suspension replacement\u003c\/li\u003e\n  \u003cli\u003ePosition: Rear\u003c\/li\u003e\n  \u003cli\u003eDesign: Gas-a-Just monotube\u003c\/li\u003e\n  \u003cli\u003eWorking Medium: Hydraulic fluid with high-pressure nitrogen gas\u003c\/li\u003e\n  \u003cli\u003eQuantity: One shock absorber\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat's Included\u003c\/h3\u003e\n\u003cp\u003eOne KYB Gas-a-Just rear monotube shock absorber, part number KYB5540004. Installation hardware and additional suspension components are not included unless specified by the manufacturer.\u003c\/p\u003e\n\n\u003ch3\u003eFitment\u003c\/h3\u003e\n\u003cp\u003eFits select 2014-2015 Lexus IS250, 2014-2015 Lexus IS350, and 2016 Lexus IS300, IS200t, and IS350 applications. Confirm vehicle configuration and suspension compatibility before ordering.\u003c\/p\u003e\u003cbr\u003e\nFitments:\u003cbr\u003e\n2014 Lexus IS250 Base\u003cbr\u003e\n2014 Lexus IS250 F Sport\u003cbr\u003e\n2014 Lexus IS350 Base\u003cbr\u003e\n2015 Lexus IS250 Base\u003cbr\u003e\n2015 Lexus IS250 F Sport\u003cbr\u003e\n2015 Lexus IS350 Base\u003cbr\u003e\n2016 Lexus IS200t Base\u003cbr\u003e\n2016 Lexus IS200t F Sport\u003cbr\u003e\n2016 Lexus IS300 Base\u003cbr\u003e\n2016 Lexus IS350 Base\u003cbr\u003e\n2017 Lexus IS200t Base\u003cbr\u003e\n2017 Lexus IS300 Base\u003cbr\u003e\n2017 Lexus IS350 Base\u003cbr\u003e\n2018 Lexus IS300 Base\u003cbr\u003e\n2018 Lexus IS350 Base\u003cbr\u003e\n2019 Lexus IS300 Base\u003cbr\u003e\n2019 Lexus IS350 Base\u003cbr\u003e\n2020 Lexus IS300 Base\u003cbr\u003e\n2020 Lexus IS350 Base\u003cbr\u003e\n2021 Lexus IS300 Base\u003cstyle\u003etable.productattributes, .productattributes td { border-bottom: 1px solid #ddd; border-collapse: collapse; padding: 2px; text-align: left; }\u003c\/style\u003e\n\u003ctable class=\"productattributes\"\u003e\n\u003cthead\u003e\u003ctr\u003e\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\u003ctd\u003eAir Freight Prohibited: false\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003eNot Carb Approved: false\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003eLtl Freight Required: false\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003eProp 65: Unknown\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003ePart Type: automotive\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003eEpa: N\/A\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003eCarb Acknowledgement Required: false\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003eRegular Stock: t\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003eUnits Per Sku: 1\u003c\/td\u003e\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003cbr\u003e","brand":"KYB","offers":[{"title":"Default Title","offer_id":67695125758204,"sku":"5540004","price":107.21,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0641\/6518\/3740\/files\/1a74d4ba55d117c5de7fceb9941c2fe7.jpg?v=1791915213","url":"https:\/\/diycustoms.store\/products\/kyb-gas-a-just-rear-monotube-shock-absorber-kyb5540004-for-lexus-is","provider":"diycustoms.store","version":"1.0","type":"link"}