{"title":"AC Compressors","description":"\u003ch2\u003eAC Compressor Replacement, Done Right\u003c\/h2\u003e\n\u003cp\u003eIf the air coming out of your vents feels more like a hair dryer than a cold front, the \u003cstrong\u003eAC compressor\u003c\/strong\u003e is usually the first part worth a hard look. We stock replacement AC compressors for cars, trucks, vans and SUVs, and we ship them worldwide. This collection is built specifically around the compressor itself and the hardware that lives right next to it — clutches, pulleys, coils and the small parts that go along for the ride when you swap one in. For the rest of the climate system, our \u003ca href=\"\/collections\/car-ac-heater-parts\"\u003eAC and heater parts\u003c\/a\u003e collection covers blower motors, condensers and heater cores.\u003c\/p\u003e\n\n\u003ch2\u003eWhat the AC Compressor Actually Does\u003c\/h2\u003e\n\u003cp\u003eThink of the compressor as the heart of the whole air conditioning loop. It pulls in low-pressure refrigerant gas and squeezes it down hard, which raises both its pressure and its temperature. That hot, high-pressure gas then travels out to the condenser, gives up its heat, and turns into a liquid. From there it's the expansion valve's job to drop the pressure again so the liquid can boil off inside the evaporator and pull heat out of your cabin air. No compressor, no pressure difference, no cold air. It's really that simple, even though the rest of the system looks complicated.\u003c\/p\u003e\n\u003cp\u003eA compressor also keeps a small amount of refrigerant oil moving through the system the whole time it's running. That oil lubricates the internal pistons, scrolls or vanes, and it also protects the seals. Lose refrigerant through a slow leak and you lose oil right along with it — which is exactly why so many \"dead\" compressors were actually starved to death by a leak somewhere else.\u003c\/p\u003e\n\n\u003ch3\u003eCommon Types of AC Compressor\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFixed-displacement compressors with an electromagnetic clutch.\u003c\/strong\u003e The clutch engages and disengages the pulley to turn cooling on and off. Common on older vehicles and plenty of current ones too.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVariable-displacement compressors.\u003c\/strong\u003e These adjust their own output internally to match cooling demand, so they run smoother and sip less engine power. Some still use a clutch; others are belt-driven all the time and controlled by an internal valve.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eScroll and rotary-vane compressors.\u003c\/strong\u003e Compact, quiet designs favored by a lot of Japanese and Korean platforms.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eElectric (high-voltage) compressors.\u003c\/strong\u003e Found in hybrids and EVs, driven by their own motor instead of a belt. On some vehicles they also help manage battery temperature, not just cabin comfort.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eSigns Your AC Compressor Is on Its Way Out\u003c\/h2\u003e\n\u003cp\u003eA failing compressor rarely goes quietly. Here's what owners usually notice first:\u003c\/p\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eWhat you're seeing or hearing\u003c\/th\u003e\n\u003cth\u003eWhat it usually points to\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWarm air even right after a recharge\u003c\/td\u003e\n\u003ctd\u003eCompressor isn't building pressure, or the clutch won't engage\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGrinding, knocking or squealing with the AC switched on\u003c\/td\u003e\n\u003ctd\u003eWorn internal bearing, seizing scroll, or a dying clutch bearing\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eClutch plate just sits there, not spinning\u003c\/td\u003e\n\u003ctd\u003eBurnt-out clutch coil, bad wiring, blown fuse, or a low-pressure safety lockout\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eClutch clicks on and off every few seconds\u003c\/td\u003e\n\u003ctd\u003eLow refrigerant charge or a flaky pressure switch\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOily film around the compressor housing or hose fittings\u003c\/td\u003e\n\u003ctd\u003eA seal is leaking refrigerant and oil together\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCold air at highway speed, warm at a stoplight\u003c\/td\u003e\n\u003ctd\u003eCould be the compressor struggling, or just a lazy condenser fan\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBelt squeal paired with a burning rubber smell\u003c\/td\u003e\n\u003ctd\u003eA seizing compressor dragging against the serpentine belt\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003cp\u003eBefore you order anything, it's worth having someone put gauges on the system. A compressor that's merely low on charge looks a lot like a dead compressor from the driver's seat, and you don't want to replace a perfectly good part.\u003c\/p\u003e\n\n\u003ch3\u003eChoosing the Right Compressor for Your Vehicle\u003c\/h3\u003e\n\u003cp\u003eAC compressors are one of those parts where \"close enough\" isn't good enough. Two vehicles sharing a nameplate can use totally different compressors depending on engine, production year, and even which factory built the car. Before you buy, check:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eOE or interchange part number\u003c\/strong\u003e stamped on a label on the compressor body — the single most reliable way to confirm a match\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEngine size and engine code\u003c\/strong\u003e, since mounting brackets and belt routing change between engine variants\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePulley diameter and groove count\u003c\/strong\u003e, which has to match your serpentine belt\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMounting ear spacing\u003c\/strong\u003e, so it lines up with the bracket already on your engine\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePort layout\u003c\/strong\u003e for the suction and discharge lines\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eClutch coil connector shape\u003c\/strong\u003e and pin count\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRefrigerant and oil type\u003c\/strong\u003e — R134a systems typically run PAG oil, R1234yf systems use their own specified oil, and many hybrid electric compressors need POE oil instead\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eNot sure which of these applies to your car? Send your VIN through our \u003ca href=\"\/pages\/contact\"\u003econtact page\u003c\/a\u003e and we'll match the part before you buy, not after.\u003c\/p\u003e\n\n\u003ch2\u003eAC Compressor Buying Guide\u003c\/h2\u003e\n\u003cp\u003eOnce you've confirmed fitment, the next decision is what kind of compressor to buy and what to buy alongside it. Here's how the main options stack up:\u003c\/p\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eOption\u003c\/th\u003e\n\u003cth\u003eWhat you get\u003c\/th\u003e\n\u003cth\u003eBest for\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNew compressor, clutch included\u003c\/td\u003e\n\u003ctd\u003eFresh internals, new bearing, new clutch coil and plate\u003c\/td\u003e\n\u003ctd\u003eMost buyers — removes the guesswork about rebuild quality\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRemanufactured compressor\u003c\/td\u003e\n\u003ctd\u003eA rebuilt core, tested and resealed, usually clutch included\u003c\/td\u003e\n\u003ctd\u003eBudget-conscious buyers on older vehicles\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eClutch and coil kit only\u003c\/td\u003e\n\u003ctd\u003eReplaces just the clutch assembly on a compressor that's otherwise healthy\u003c\/td\u003e\n\u003ctd\u003eA quiet, leak-free compressor with only a clutch fault\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompressor without clutch\u003c\/td\u003e\n\u003ctd\u003eBare pump body, reuses your existing clutch\u003c\/td\u003e\n\u003ctd\u003eOnly when the original clutch is confirmed good\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003cp\u003eWhichever you pick, plan on replacing the receiver drier (or accumulator) and the expansion valve or orifice tube at the same time. Both are inexpensive, both trap debris and moisture, and skipping them is the single most common reason a brand-new compressor fails again within weeks.\u003c\/p\u003e\n\n\u003ch2\u003eInstalling a New AC Compressor\u003c\/h2\u003e\n\u003cp\u003eA new compressor dropped into a dirty, wet, or contaminated system is just a new part waiting to fail. Do it in this order and it'll last:\u003c\/p\u003e\n\u003col\u003e\n\u003cli\u003eRecover the old refrigerant with proper equipment — venting it to the atmosphere is illegal in most places and bad for everyone's air.\u003c\/li\u003e\n\u003cli\u003eFigure out why the old compressor died. Internal failure sends metal shavings everywhere downstream.\u003c\/li\u003e\n\u003cli\u003eFlush what can be flushed. Modern parallel-flow condensers usually can't be cleaned this way, so plan to replace the condenser if the old compressor came apart internally.\u003c\/li\u003e\n\u003cli\u003eSwap the receiver drier or accumulator — it's saturated with moisture the moment the system is opened, every single time.\u003c\/li\u003e\n\u003cli\u003eReplace the expansion valve or orifice tube.\u003c\/li\u003e\n\u003cli\u003eMeasure the oil out of the old compressor, then charge the new one with the correct total amount for your specific system.\u003c\/li\u003e\n\u003cli\u003eUse fresh O-rings everywhere you disconnect a fitting, lightly oiled with the correct lubricant.\u003c\/li\u003e\n\u003cli\u003ePull a deep vacuum for at least 30 minutes and confirm it holds before charging.\u003c\/li\u003e\n\u003cli\u003eCharge by weight to the figure on the underhood label, not by \"feel.\"\u003c\/li\u003e\n\u003cli\u003eTurn the compressor over by hand a few revolutions before the first startup, just to spread oil through it.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003eIf you'd like a plain-language rundown of how the whole refrigeration loop actually works, the \u003ca href=\"https:\/\/en.wikipedia.org\/wiki\/Vapor-compression_refrigeration\" target=\"_blank\" rel=\"noopener\"\u003evapor-compression refrigeration\u003c\/a\u003e article on Wikipedia explains the cycle clearly.\u003c\/p\u003e\n\n\u003ch3\u003eKeeping a New Compressor Alive\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eRun the AC a few minutes every week, year-round, even in winter — it keeps the seals from drying out\u003c\/li\u003e\n\u003cli\u003eKeep the condenser clean of bugs, leaves and road grime so it can actually shed heat\u003c\/li\u003e\n\u003cli\u003eMake sure the cooling fan comes on with the AC at idle\u003c\/li\u003e\n\u003cli\u003eReplace the cabin air filter on schedule so airflow across the evaporator isn't choked off\u003c\/li\u003e\n\u003cli\u003eSkip the \"sealer in a can\" refrigerant top-ups — they gum up expansion valves and orifice tubes\u003c\/li\u003e\n\u003cli\u003eChase down leaks the moment cooling starts to fade, rather than waiting for a total failure\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003ch3\u003eHow do I tell if it's the compressor or just low refrigerant?\u003c\/h3\u003e\n\u003cp\u003eIf the clutch engages and the compressor runs quietly but the air still isn't cold, suspect low charge first. If the clutch won't engage at all, or the compressor is making noise, the compressor or its clutch is more likely the culprit. A set of pressure gauges settles it in a few minutes.\u003c\/p\u003e\n\u003ch3\u003eCan I replace just the clutch instead of the whole compressor?\u003c\/h3\u003e\n\u003cp\u003eOn a lot of designs, yes — if the compressor pump itself is quiet, holds pressure, and isn't leaking. If it's noisy, old, or seeping oil, you're usually better off replacing the complete unit.\u003c\/p\u003e\n\u003ch3\u003eDoes a new AC compressor come with oil already in it?\u003c\/h3\u003e\n\u003cp\u003eMany ship with a small shipping charge of oil, but you still need to drain, measure, and set the total system charge to spec — don't assume the shipping amount is correct for your car.\u003c\/p\u003e\n\u003ch3\u003eHow long does an AC compressor replacement take?\u003c\/h3\u003e\n\u003cp\u003eFigure two to four hours for a typical job, evacuation and recharge included. Some vehicles bury the compressor behind other components and take longer.\u003c\/p\u003e\n\u003ch3\u003eWill a new compressor fix a refrigerant leak somewhere else?\u003c\/h3\u003e\n\u003cp\u003eNo. Find and repair any other leaks first. Otherwise your brand-new compressor will run short on oil and lubrication, and you'll be right back where you started.\u003c\/p\u003e\n\n\u003ch2\u003eWhy Buy Your AC Compressor From Easy Life Auto Parts\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eClear fitment information.\u003c\/strong\u003e OE and interchange numbers listed alongside the vehicles each compressor fits.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eA real VIN check.\u003c\/strong\u003e Send us your details and we'll confirm the match before you order.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWorldwide shipping.\u003c\/strong\u003e Full delivery estimates are on our \u003ca href=\"\/pages\/shipping\"\u003eshipping page\u003c\/a\u003e.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStraightforward warranty terms.\u003c\/strong\u003e Review them on our \u003ca href=\"\/pages\/warranty\"\u003ewarranty page\u003c\/a\u003e — and hang on to proof of a correct installation, since most compressor warranties require it.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNeed something electrical checked too?\u003c\/strong\u003e See \u003ca href=\"\/collections\/car-electrical-parts\"\u003ecar electrical parts\u003c\/a\u003e and \u003ca href=\"\/collections\/car-sensors\"\u003ecar sensors\u003c\/a\u003e for related components, or \u003ca href=\"\/collections\/belts-and-hoses\"\u003ebelts and hoses\u003c\/a\u003e if a slipping belt is part of your problem.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eDon't spend another summer sweating through warm vents. Confirm your OE number, pick the right AC compressor, and get your cold air back.\u003c\/p\u003e","products":[{"product_id":"a-c-compressor-w-clutch-for-eclipse-2006-2012-galant-2004-2009-3-8l-mr513474-2021599am","title":"AC Compressor with Clutch - Mitsubishi Eclipse, Galant, Endeavor (OE MR513474)","description":"\u003ch2\u003eAC Compressor with Clutch for the Eclipse, Galant, and Endeavor\u003c\/h2\u003e\n\u003cp\u003eThis is a complete AC compressor with clutch, OE number MR513474, built for the Mitsubishi Eclipse, Galant, and Endeavor with the 3.8L V6. It's a full unit, not a rebuild kit or a clutch-only part, so if your air conditioning has stopped blowing cold, or the compressor is making a grinding or squealing noise when the AC clicks on, this is the whole component you'd be swapping in.\u003c\/p\u003e\n\u003cp\u003eA dead AC compressor is one of those repairs that doesn't get put off very long, mainly because there's no comfortable way to ignore it once summer hits. It's also, unfortunately, one of the more expensive parts on the AC system, so it's worth getting the right one the first time rather than guessing.\u003c\/p\u003e\n\u003ch2\u003eWhat This Compressor Actually Does\u003c\/h2\u003e\n\u003cp\u003eThe compressor is the heart of the AC system — it takes low-pressure refrigerant gas from the evaporator and compresses it into a hot, high-pressure gas that then moves through the condenser to release heat and turn back into liquid. The whole refrigeration cycle depends on the compressor doing this reliably, and the electromagnetic clutch on the front is what lets it engage and disengage from the engine's belt as needed, rather than running constantly. When the clutch bearing wears out or the internal compressor components fail, you either lose cooling entirely or start hearing it complain every time the AC kicks on.\u003c\/p\u003e\n\u003ch2\u003eOE and Cross-Reference Numbers\u003c\/h2\u003e\n\u003cp\u003eThis compressor is built to OE number MR513474, and also cross-references to 2021599AM, 6511500, 7511500, 77493, 78493, CO 10773T, and 6512196. If any of those numbers match what's stamped on your old compressor, you're looking at the right part.\u003c\/p\u003e\n\u003ch2\u003eVehicle Coverage\u003c\/h2\u003e\n\u003cp\u003eThis is confirmed for the Mitsubishi Eclipse (2006-2010 with the V6 3.8L, and 2012 across all engine options), the Mitsubishi Galant (2004-2009 with the V6 3.8L), and the Mitsubishi Endeavor (2004-2008 and 2010-2011, all engine options) — all with the 6-groove pulley configuration. If your Eclipse or Galant has a four-cylinder rather than the 3.8L V6, this isn't your compressor, so it's worth confirming your engine and pulley groove count before ordering.\u003c\/p\u003e\n\u003ch2\u003eWhat's in the Box\u003c\/h2\u003e\n\u003cp\u003eOne complete AC compressor with the clutch assembly already attached. You won't need to source a separate clutch or transfer one over from your old unit.\u003c\/p\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eType: AC compressor with clutch\u003c\/li\u003e\n\u003cli\u003eOE part number: MR513474\u003c\/li\u003e\n\u003cli\u003ePulley: 6-groove\u003c\/li\u003e\n\u003cli\u003eCondition: New\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eA Word on Installation\u003c\/h2\u003e\n\u003cp\u003eAC compressor jobs aren't just a bolt swap — the system has to be properly evacuated and recharged with refrigerant afterward, and in most places that means either having the right recovery equipment yourself or having a shop handle that part even if you do the physical swap. It's also smart to check the condenser and receiver-drier (or accumulator) for contamination if the old compressor failed internally, since metal debris from a dying compressor can circulate through the rest of the system and cause a repeat failure if it's not flushed out. Wikipedia's \u003ca href=\"https:\/\/en.wikipedia.org\/wiki\/Air_conditioning\"\u003eair conditioning article\u003c\/a\u003e covers the refrigeration cycle this compressor is part of, if you want the broader mechanical picture beyond just this one component.\u003c\/p\u003e\n\u003ch2\u003eWhy This Is Worth Doing Right\u003c\/h2\u003e\n\u003cp\u003eA compressor that's undersized, mismatched, or missing the correct pulley groove count for your accessory belt setup either won't engage properly or will put uneven load on your serpentine belt. Matching the OE and cross-reference numbers above against your existing compressor is really the only reliable way to be sure you're getting a part that bolts up and runs the way the original did.\u003c\/p\u003e\n\u003ch2\u003eOrdering\u003c\/h2\u003e\n\u003cp\u003eThis AC compressor is in stock and ships ready to install. If you're not confident this matches your specific Eclipse, Galant, or Endeavor, our \u003ca href=\"\/pages\/request-a-part\"\u003eRequest a Part page\u003c\/a\u003e can help you confirm before you buy. Our \u003ca href=\"\/pages\/warranty\"\u003eWarranty\u003c\/a\u003e and \u003ca href=\"\/pages\/returns\"\u003eReturns\u003c\/a\u003e pages explain what happens if something's not right.\u003c\/p\u003e\n\u003ch2\u003eRelated\u003c\/h2\u003e\n\u003cp\u003eYou'll find this compressor in our \u003ca href=\"\/collections\/ac-compressors\"\u003eAC compressors\u003c\/a\u003e and \u003ca href=\"\/collections\/ac-hvac\"\u003eAC and HVAC\u003c\/a\u003e collections, along with other cooling and climate parts, and in our \u003ca href=\"\/collections\/mitsubishi\"\u003eMitsubishi\u003c\/a\u003e collection.\u003c\/p\u003e","brand":"EasyLife Auto Parts","offers":[{"title":"28324966","offer_id":49807879504100,"sku":"CJQT300993901AZ","price":179.15,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0740\/0502\/0900\/files\/659d516b-60ce-484e-8c50-3c7da6a7d5b2.jpg?v=1788737654"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0740\/0502\/0900\/collections\/659d516b-60ce-484e-8c50-3c7da6a7d5b2.jpg?v=1791872559","url":"https:\/\/easylifeautoparts.com\/collections\/ac-compressors.oembed","provider":"Easy Life Auto Parts","version":"1.0","type":"link"}