{"product_id":"spring-rs1-rs2-d3-d4","title":"Spring - Rs1\/Rs2\/D3\/D4 for Discovery 3 (2005 – 2009) To 9A999999 – BPA780120","description":"\u003cp\u003eBPA780120 is an air suspension spring designated for the RS1\/RS2 ride height positions, forming part of the air strut assembly on vehicles equipped with Land Rover's pneumatic suspension system. It maintains the correct ride height and load-carrying geometry by providing the primary support structure within the air spring bellows assembly. Incorrect or worn springs result in sagging ride height, compressor overwork, and uneven tyre wear.\u003c\/p\u003e\n\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eDesigned for RS1\/RS2 and D3\/D4 spring rate positions within the air suspension strut assembly\u003c\/li\u003e\n\u003cli\u003eDirect OEM-specification replacement requiring no modification during fitment\u003c\/li\u003e\n\u003cli\u003eSourced to match original Land Rover part number BPA780120 for accurate dimensional and load compatibility\u003c\/li\u003e\n\u003cli\u003eSprings are typically replaced in axle pairs; inspect the associated air bag, bump stop, and damper for wear when replacing\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch4\u003eVehicle Fitment\u003c\/h4\u003e\n\u003cp\u003eThis spring fits the Discovery 3 (2005–2009, to VIN 9A999999), Discovery 4 (2010–2016, from VIN AA000001), Range Rover Sport (2005–2009, to VIN 9A999999), and Range Rover Sport (2010–2013, from VIN AA000001), all with fuel and air suspension.\u003c\/p\u003e\n\u003cp\u003eNot sure about fitment? Feel free to get in touch at \u003ca href=\"mailto:info@thomasperformance.co.uk\"\u003einfo@thomasperformance.co.uk\u003c\/a\u003e\u003c\/p\u003e","brand":"Allmakes 4x4","offers":[{"title":"Default Title","offer_id":55820428476760,"sku":"BPA780120","price":1.72,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0890\/0070\/6392\/files\/BPA780120-600x600.jpg?v=1758863385","url":"https:\/\/thomasperformance.co.uk\/products\/spring-rs1-rs2-d3-d4","provider":"Thomas Performance Ltd","version":"1.0","type":"link"}