{"product_id":"arb-ford-bronco-single-12v-onboard-compressor-kit","title":"ARB Single Onboard 12V Air Compressor Kit — 2021-2025 Ford Bronco","description":"\u003cp\u003eAn on-board compressor is the upgrade you forget about until the moment you need it — airing back up at the trailhead, seating a bead, or engaging a locker. This ARB kit (\u003cstrong\u003eCKMA12BK1\u003c\/strong\u003e) is built specifically for the \u003cstrong\u003e2021–2025 Ford Bronco\u003c\/strong\u003e, with an \u003cstrong\u003eengine-bay mount validated by Ford engineers\u003c\/strong\u003e that bolts to factory points, so ARB’s High Output single-motor CKMA12 compressor lives permanently under the hood — no cargo-space box, no loose leads, no battery clamps.\u003c\/p\u003e\n\n\u003ch3\u003ePerformance you can count on\u003c\/h3\u003e\n\u003cp\u003eThe ARB CKMA12 moves \u003cstrong\u003e3.08 CFM (87 L\/min)\u003c\/strong\u003e of free air and still pushes \u003cstrong\u003e2.34 CFM (66 L\/min) at 29 psi\u003c\/strong\u003e, up to a \u003cstrong\u003e100 psi\u003c\/strong\u003e maximum — enough to \u003cstrong\u003einflate up to a 35-inch tire\u003c\/strong\u003e and to \u003cstrong\u003eactuate ARB Air Lockers instantly\u003c\/strong\u003e. The motor is internally thermal-protected, the cylinder bore is hard-anodized, and the piston runs a Teflon-impregnated carbon-fiber seal. Sealed to \u003cstrong\u003eIP55\u003c\/strong\u003e against moisture and dust, it’s built to live in a working engine bay.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eStraight talk on duty cycle:\u003c\/strong\u003e the single CKMA12 is rated \u003cstrong\u003e50% (30 min on \/ 30 off)\u003c\/strong\u003e at full load — ideal for tire inflation and locker duty. If you plan to run air tools continuously or air up a full set of 37s back-to-back, step up to the twin-motor CKMTA12 (150 psi, 100% duty cycle) — comparison below.\u003c\/p\u003e\n\n\u003ch3\u003eFull technical specifications (ARB CKMA12)\u003c\/h3\u003e\n\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eAir delivery @ 0 psi\u003c\/td\u003e\n\u003ctd\u003e3.08 CFM (87 L\/min)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAir delivery @ 29 psi\u003c\/td\u003e\n\u003ctd\u003e2.34 CFM (66 L\/min)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaximum working pressure\u003c\/td\u003e\n\u003ctd\u003e100 psi (690 kPa)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMotor\u003c\/td\u003e\n\u003ctd\u003eSingle-motor, 12V DC, permanent magnetic, internally thermal-protected\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaximum current draw\u003c\/td\u003e\n\u003ctd\u003e32 A (heavy-duty maxi-fuse equipped)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDuty cycle\u003c\/td\u003e\n\u003ctd\u003e50% — 30 min on \/ 30 min off at rated load\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCylinder bore\u003c\/td\u003e\n\u003ctd\u003eHard-anodized\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePiston seal\u003c\/td\u003e\n\u003ctd\u003eTeflon-impregnated carbon fiber\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIngress protection\u003c\/td\u003e\n\u003ctd\u003eIP55 (sealed for moisture \u0026amp; dust)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSafety\u003c\/td\u003e\n\u003ctd\u003eOver-pressure safety valve; internal thermal cut-out\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions (compressor)\u003c\/td\u003e\n\u003ctd\u003e7.5\" L × 3.86\" W × 5.7\" H\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight (compressor)\u003c\/td\u003e\n\u003ctd\u003e7.7 lb (3.5 kg)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEngine-bay mount\u003c\/td\u003e\n\u003ctd\u003eFord-validated bracket (PN 3580030), 100% bolt-on to OE points, black powder-coat\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEngine support\u003c\/td\u003e\n\u003ctd\u003e2.3L and 2.7L\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRated for\u003c\/td\u003e\n\u003ctd\u003eInflating up to a 35\" tire; ARB Air Locker actuation\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWarranty\u003c\/td\u003e\n\u003ctd\u003e3-year ARB warranty\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePart number (MPN)\u003c\/td\u003e\n\u003ctd\u003eCKMA12BK1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eWhat’s in the kit\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eARB CKMA12 High Output single-motor 12V compressor\u003c\/li\u003e\n\u003cli\u003eFord-validated engine-bay mounting bracket (PN 3580030) — 100% bolt-on to factory points, supports 2.3L and 2.7L\u003c\/li\u003e\n\u003cli\u003eHose coupling (0740112) and dust cap (0740113)\u003c\/li\u003e\n\u003cli\u003e2× 1\/4in NPT tee adapters (0740106)\u003c\/li\u003e\n\u003cli\u003eSwitch located at the compressor, plus mounting hardware and fitting instructions\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cem\u003eAir hose and tire-inflation accessories are sold separately — see recommended add-ons below. Confirm your engine (2.3L or 2.7L) before ordering.\u003c\/em\u003e\u003c\/p\u003e\n\n\u003ch3\u003eInstallation on your Bronco\u003c\/h3\u003e\n\u003cp\u003eThe mount is a \u003cstrong\u003e100% bolt-on, Ford-validated engine-bay bracket\u003c\/strong\u003e — it fixes to factory mounting points with no cutting or drilling, and locates the compressor and its switch cleanly under the hood. A permanent, sealed (IP55) install means the compressor is ready the instant you need it, unlike a portable unit that has to be unpacked, clamped and stowed every time.\u003c\/p\u003e\n\n\u003ch3\u003eWhat you can do with it\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eAir up fast\u003c\/strong\u003e after a trail — all four tires from a full airdown, up to 35\".\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRun ARB Air Lockers\u003c\/strong\u003e — supplies more than enough air to actuate front and\/or rear lockers instantly.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeat a tire bead\u003c\/strong\u003e in the field.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTop off\u003c\/strong\u003e camp gear, air mattresses, pack rafts, and blow dust off recovery gear.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAdd an air tank\u003c\/strong\u003e (optional) for short bursts with air chucks and blow guns.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSingle vs. twin — which ARB compressor do you need?\u003c\/h3\u003e\n\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003e \u003c\/th\u003e\n\u003cth\u003eCKMA12 Single (this kit)\u003c\/th\u003e\n\u003cth\u003eCKMTA12 Twin\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eAir @ 0 psi\u003c\/td\u003e\n\u003ctd\u003e3.08 CFM (87 L\/min)\u003c\/td\u003e\n\u003ctd\u003e6.16 CFM (174 L\/min)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAir @ 29 psi\u003c\/td\u003e\n\u003ctd\u003e2.34 CFM (66 L\/min)\u003c\/td\u003e\n\u003ctd\u003e4.68 CFM (132 L\/min)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax pressure\u003c\/td\u003e\n\u003ctd\u003e100 psi\u003c\/td\u003e\n\u003ctd\u003e150 psi\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDuty cycle\u003c\/td\u003e\n\u003ctd\u003e50% (30\/30)\u003c\/td\u003e\n\u003ctd\u003e100% (continuous)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax current\u003c\/td\u003e\n\u003ctd\u003e32 A\u003c\/td\u003e\n\u003ctd\u003e68.6 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e7.7 lb\u003c\/td\u003e\n\u003ctd\u003e17.4 lb\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBest for\u003c\/td\u003e\n\u003ctd\u003eTires up to 35\" + Air Lockers\u003c\/td\u003e\n\u003ctd\u003eBig tires (37\"+), continuous use, air tools (with tank)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003eFor most Bronco builds airing up to 35\" and running lockers, the single is the right call — lighter, less current draw, and plenty of air. Choose the twin if fast back-to-back inflation of oversized tires or running air tools matters more.\u003c\/p\u003e\n\n\u003ch3\u003eRecommended add-ons\u003c\/h3\u003e\n\u003cp\u003ePair it with an ARB tire-inflation kit or air-chuck set for airing up, an ARB air manifold if you’re feeding both inflation and Air Lockers, and an optional 4L air tank for air tools. ARB Air Lockers plug straight into this compressor.\u003c\/p\u003e\n\n\u003ch3\u003eFrequently asked\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eWill it run air tools?\u003c\/strong\u003e For short bursts with a tank, yes — but the single isn’t built for continuous air-tool work. For that, choose the twin CKMTA12.\u003cbr\u003e\n\u003cstrong\u003eIs it waterproof?\u003c\/strong\u003e It’s sealed to IP55 — moisture- and dust-resistant for engine-bay mounting, not for submersion.\u003cbr\u003e\n\u003cstrong\u003eDoes it fit my Bronco?\u003c\/strong\u003e It fits 2021–2025 Bronco with the 2.3L or 2.7L engine; the bracket is Ford-validated and bolts to factory points.\u003cbr\u003e\n\u003cstrong\u003eDoes it work with ARB Air Lockers?\u003c\/strong\u003e Yes — it’s the intended air source for ARB’s locking differentials.\u003cbr\u003e\n\u003cstrong\u003eDuty cycle in plain English?\u003c\/strong\u003e Run it up to ~30 minutes, then rest ~30 at full load. Airing up a set of tires is well within that.\u003c\/p\u003e\n\n\u003ch3\u003eThis fits\u003c\/h3\u003e\n\u003cp\u003eFord Bronco (Base, Big Bend, Black Diamond, Outer Banks, Badlands, Wildtrak, Heritage \/ Heritage Limited, First Edition), \u003cstrong\u003e2021–2025\u003c\/strong\u003e, with the 2.3L or 2.7L engine.\u003c\/p\u003e\n\n\u003cp\u003eExplore more \u003ca href=\"\/collections\/ford-bronco\"\u003eFord Bronco (2021+)\u003c\/a\u003e gear or browse \u003ca href=\"\/collections\/air-compressors\"\u003eair compressors\u003c\/a\u003e and the \u003ca href=\"\/collections\/arb\"\u003eARB range\u003c\/a\u003e.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCalifornia Proposition 65 WARNING:\u003c\/strong\u003e This product can expose you to chemicals known to the State of California to cause cancer or reproductive harm. For more information go to \u003ca href=\"https:\/\/www.p65warnings.ca.gov\" rel=\"nofollow\"\u003ewww.P65Warnings.ca.gov\u003c\/a\u003e.\u003c\/p\u003e","brand":"ARB","offers":[{"title":"Default Title","offer_id":48647920189632,"sku":"arbCKMA12BK1","price":682.75,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0525\/3188\/8320\/files\/0a1d816a5eb91be4ec6c5dd83475c96a.jpg?v=1784676463","url":"https:\/\/overlandkitted.com\/products\/arb-ford-bronco-single-12v-onboard-compressor-kit","provider":"Overland Kitted","version":"1.0","type":"link"}