{"product_id":"arb-airlocker-rr-28-spl-mitsubishi-9in-s-n","title":"ARB Air Locker — Mitsubishi 9\" Rear 28-Spline","description":"\u003ch2\u003eARB Air Locker — Mitsubishi 9\" rear differential\u003c\/h2\u003e\u003cp\u003eThe ARB Air Locker is a driver-selectable, air-operated locking differential that turns an open diff into a fully locked axle at the flick of a switch. This unit is machined for the \u003cstrong\u003eMitsubishi 9\" rear axle\u003c\/strong\u003e, giving you 100% lockup for low-traction climbs, rock ledges and off-camber trails — then unlocks instantly to keep everyday street and high-speed dirt manners predictable.\u003c\/p\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eDetail\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eType\u003c\/td\u003e\n\u003ctd\u003eAir-operated selectable locking differential (100% lockup)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDifferential \/ application\u003c\/td\u003e\n\u003ctd\u003eMitsubishi 9\" rear axle\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSpline count\u003c\/td\u003e\n\u003ctd\u003e28-spline\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRing gear \/ carrier\u003c\/td\u003e\n\u003ctd\u003e9\" (Mitsubishi rear)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eActivation\u003c\/td\u003e\n\u003ctd\u003eOn-board compressed air (ARB air compressor required)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eARB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMPN\u003c\/td\u003e\n\u003ctd\u003eRD212\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGTIN\u003c\/td\u003e\n\u003ctd\u003e9332018021601\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003cp\u003eBecause engagement is on-demand rather than automatic, the Air Locker stays fully open until you flick the switch, so there's no bind, no clunk and no compromise to handling. When you do lock it, engagement is positive and 100% — both wheels drive regardless of traction — and hardened internals in a nodular-iron case stand up to hard trail use.\u003c\/p\u003e\u003cp\u003eTrade-off to plan for: the Air Locker runs on compressed air, so you'll need an ARB on-board air compressor and the matching air line\/solenoid to operate it. If you're already running ARB air for tyres or a second locker, this drops straight into that system.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eFits:\u003c\/strong\u003e Mitsubishi Montero and Montero Sport with the 9\" rear axle (1987–2004). Confirm your exact axle and spline count before ordering — Air Lockers are matched to the differential, not just the vehicle.\u003c\/p\u003e\u003cp\u003eBrowse more \u003ca href=\"\/collections\/differentials-lockers\"\u003eDifferentials \u0026amp; Lockers\u003c\/a\u003e or the full \u003ca href=\"\/collections\/arb\"\u003eARB\u003c\/a\u003e range.\u003c\/p\u003e\u003cp\u003e\u003csmall\u003e\u003cstrong\u003eCalifornia Prop 65 Warning:\u003c\/strong\u003e This product can expose you to chemicals known to the State of California to cause cancer and\/or reproductive harm. For more information go to www.P65Warnings.ca.gov.\u003c\/small\u003e\u003c\/p\u003e","brand":"ARB","offers":[{"title":"Default Title","offer_id":48647949091008,"sku":"arbRD212","price":1299.95,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0525\/3188\/8320\/files\/67d93df0f70e9e7d469427f1614e8860.jpg?v=1784678083","url":"https:\/\/overlandkitted.com\/products\/arb-airlocker-rr-28-spl-mitsubishi-9in-s-n","provider":"Overland Kitted","version":"1.0","type":"link"}