{"product_id":"kyb-341621-suspension-shock-absorber-rear","title":"KYB 341621 Suspension Shock Absorber - Rear","description":"\u003ch2\u003eKYB Excel-G Shock Absorber for OE Ride Control\u003c\/h2\u003e\u003cp\u003eThe KYB Excel-G 341621 is a nitrogen gas-charged, twin-tube suspension shock absorber built to restore original ride control, stability, stopping response, lane-change responsiveness, and handling. It is an OE-style replacement for heavy-duty trucks and commercial vehicles, with calibration focused on returning the vehicle to its designed performance.\u003c\/p\u003e\u003cp\u003eMade on KYB OE assembly lines and using OE-quality components, the Excel-G line is classified as OEA, or Original Equipment for the Aftermarket. This part number 341621 is a direct-fit suspension shock absorber for applications that require controlled damping and consistent tire contact.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eKYB recommended OEM replacement shock for heavy-duty trucks and commercial vehicles\u003c\/li\u003e\n\u003cli\u003eNitrogen gas-charged, twin-tube design for stable damping performance\u003c\/li\u003e\n\u003cli\u003eTriple-lip fluid seal helps reduce oil and gas leakage\u003c\/li\u003e\n\u003cli\u003eVehicle-specific, hand-assembled damping valves manage tire contact, steering response, and body movement\u003c\/li\u003e\n\u003cli\u003eStrong strut body and bracket construction helps minimize flex and maintain alignment\u003c\/li\u003e\n\u003cli\u003eDust cover included\u003c\/li\u003e\n\u003cli\u003eMade in USA\u003c\/li\u003e\n\u003cli\u003eR-stop included\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eProduct Details\u003c\/h2\u003e\u003cp\u003eThe KYB Excel-G brand line is engineered to restore the suspension behavior the vehicle was designed to deliver, rather than changing ride characteristics. For drivers and technicians searching for a KYB 341621 shock absorber, this part supports consistent control in daily driving, load carrying, and commercial use. It is also a practical choice when replacing worn suspension components on vehicles such as Ford F-250 and Ford F-350 applications that require dependable damping and steering response.\u003c\/p\u003e\u003cp\u003eThis part cross-references Monroe Shocks \u0026amp; Struts (e.g., 65402) for the same application.\u003c\/p\u003e\u003ch2\u003eWhat It Helps Address\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eExcessive bouncing after bumps\u003c\/li\u003e\n\u003cli\u003eReduced steering response during lane changes\u003c\/li\u003e\n\u003cli\u003eBody roll and unstable handling\u003c\/li\u003e\n\u003cli\u003ePoor tire contact on uneven roads\u003c\/li\u003e\n\u003cli\u003eSuspension noise or fluid leakage from a worn shock absorber\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cp\u003eVerify compressed length, extended length, stroke length, and mount types before installation. This KYB 341621 shock uses an E1L\/E(26) lower mount and an S1(5\/8) upper mount, so matching the original mounting style is important for proper fitment. After replacement, inspect related suspension components and confirm alignment if the vehicle shows uneven tire wear or steering pull.\u003c\/p\u003e\u003cp\u003eCompatible With heavy-duty truck and commercial vehicle applications where the original shock absorber specification matches this part number. For fitment-based searches, use KYB 341621 when looking for an OE replacement shock for Ford F-250 and Ford F-350 suspension service.\u003c\/p\u003e\u003ch2\u003eQuality Assurance\u003c\/h2\u003e\u003cp\u003eKYB supplies shocks and struts to new vehicle manufacturers and builds the Excel-G line on the same OE assembly lines using OE-quality components. The design focus is restoring original suspension performance and supporting the operation of vehicle systems that depend on proper suspension control.\u003c\/p\u003e","brand":"KYB","offers":[{"title":"Default Title","offer_id":52019638010037,"sku":"BFJG-341621","price":88.84,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/KY_341621_Fro.jpg?v=1775072352","url":"https:\/\/www.partcatalog.com\/products\/kyb-341621-suspension-shock-absorber-rear","provider":"PartCatalog","version":"1.0","type":"link"}