{"product_id":"mainshaft-bearing-183039","title":"Mainshaft Bearing for Series 1 – 1645G","description":"\u003cp\u003eThe mainshaft bearing supports and locates the gearbox mainshaft within the transmission casing, reducing rotational friction and maintaining correct shaft alignment under load. In Series Land Rover gearboxes, wear or failure of this bearing typically presents as transmission noise, vibration under drive, or lateral play in the mainshaft. Replacing this bearing with the correct-specification part is essential to restoring proper gear engagement and preventing accelerated wear to adjacent components.\u003c\/p\u003e\n\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eDesigned to the original bearing specification for Series Land Rover four-speed gearboxes\u003c\/li\u003e\n\u003cli\u003eDirect replacement requiring no modification during installation\u003c\/li\u003e\n\u003cli\u003eSupplied as a single bearing; check quantity required against your specific gearbox build\u003c\/li\u003e\n\u003cli\u003eWhen replacing this bearing, inspect the mainshaft for scoring and the bearing housing for wear or damage before reassembly\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch4\u003eVehicle Fitment\u003c\/h4\u003e\n\u003cp\u003eThis mainshaft bearing is suitable for Land Rover Series 1, Series 2, Series 2A, and Series 3 vehicles across all powertrain variants.\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 PR2","offers":[{"title":"Default Title","offer_id":55820347244888,"sku":"1645G","price":14.9,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0890\/0070\/6392\/files\/1645G-600x600.jpg?v=1758862120","url":"https:\/\/thomasperformance.co.uk\/products\/mainshaft-bearing-183039","provider":"Thomas Performance Ltd","version":"1.0","type":"link"}