{"product_id":"mini-moke-rear-brake-pressure-regulating-valve-rear-subframe-mount","title":"MINI \u0026 MOKE REAR BRAKE PRESSURE REGULATING VALVE- REAR SUBFRAME MOUNT [21A1774]","description":"\u003cp class=\"PDq2pG_selectionAnchorContainer\"\u003eReplacement \u003cstrong\u003erear brake pressure regulating valve\u003c\/strong\u003e for Classic Mini and Moke models fitted with the \u003cstrong\u003esingle-circuit brake master cylinder\u003c\/strong\u003e.\u003cspan class=\"PDq2pG_selectionAnchor\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThis valve is mounted on the \u003cstrong\u003erear subframe\u003c\/strong\u003e and regulates hydraulic pressure to the rear brakes, helping prevent premature rear-wheel lock-up under braking.\u003c\/p\u003e\n\u003cp\u003eThis valve is \u003cstrong\u003emanufactured in the UK under the Shiftec brand\u003c\/strong\u003e, which owns the \u003cstrong\u003eAP Racing \/ AP brand\u003c\/strong\u003e, making this a high-quality replacement for the original AP-style valve.\u003c\/p\u003e\n\u003ch3\u003eFITMENT\u003c\/h3\u003e\n\u003cp\u003eThis valve was fitted to:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003eMini Mk1\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eMini Mk2\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eLeyland Mini models before the introduction of the dual-circuit master cylinder\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003eAll Mk1 \u0026amp; Mk2 Mini models, including \u003cstrong\u003eCooper and Cooper S\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eMk3 Cooper S\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003eAustralian Mini \u0026amp; Moke models using this style of valve\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eFor Australian Mini \u0026amp; Moke models, a useful rule of thumb is: \u003cstrong\u003eif your existing valve looks like this one, this is likely the correct replacement.\u003c\/strong\u003e Always compare the existing valve and spring arrangement before ordering.\u003c\/p\u003e\n\u003ch3\u003eSPRING DIFFERENCE\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003e21A1774\u003c\/strong\u003e uses the \u003cstrong\u003e27H6620 spring\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eThe alternative \u003cstrong\u003e21A2031\u003c\/strong\u003e was used on other UK Mk3 models, including \u003cstrong\u003e850, 998 and 1100cc\u003c\/strong\u003e versions. The main difference between the two valves is the spring:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e21A1774\u003c\/strong\u003e – uses \u003cstrong\u003e27H6620\u003c\/strong\u003e spring\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e21A2031\u003c\/strong\u003e – shorter spring with lower spring rate, approximately \u003cstrong\u003e10 lb at 0.98\" fitted length\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eWe find the \u003cstrong\u003e21A1774\u003c\/strong\u003e suitable for:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eDrum-brake cars using the \u003cstrong\u003e3\/4\" rear wheel cylinders\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eCars with a \u003cstrong\u003efront disc-brake conversion\u003c\/strong\u003e using the smaller \u003cstrong\u003e5\/8\" wheel cylinders\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eIMPORTANT\u003c\/h3\u003e\n\u003cp\u003eThis valve is designed for \u003cstrong\u003esingle-circuit master cylinder systems\u003c\/strong\u003e and mounts to the rear subframe.\u003c\/p\u003e\n\u003cp\u003eIf you are experiencing \u003cstrong\u003erear brake lock-up\u003c\/strong\u003e or difficulty getting brake fluid through to the rear brakes, the pressure regulating valve should be checked as part of the diagnosis.\u003c\/p\u003e\n\u003ch3\u003ePART NUMBERS\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003e21A1774\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eAP 4313-743P\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e27H6620\u003c\/strong\u003e – Spring\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eMade in the UK under the Shiftec brand – owners of the AP brand.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003ePlease check your existing brake system and valve before ordering, particularly on cars that have been modified or converted to a different master cylinder or brake setup.\u003c\/p\u003e","brand":"Minisport.com.au","offers":[{"title":"Default Title","offer_id":44491513626934,"sku":"21A1774","price":245.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0727\/3322\/9366\/files\/PhotoRoom-20240124_122202_1.jpg?v=1706061260","url":"https:\/\/minisport.com.au\/products\/mini-moke-rear-brake-pressure-regulating-valve-rear-subframe-mount","provider":"Minisport","version":"1.0","type":"link"}