{"product_id":"mercury-pcm-propulsion-control-module-865857t05","title":"Mercury PCM Propulsion Control Module #865857T05","description":"\u003ch2\u003eMercury Marine 865857T05 Modules\u003c\/h2\u003e\n\u003cp\u003eThe PCM is the brain of your Mercury propulsion system. It controls fuel delivery, ignition timing, throttle response, shift logic, and a dozen other functions that determine how your engine starts, runs, and performs under load. When it fails, you'll know — hard starts, limp mode, erratic behavior, or a complete no-start are all on the table. And unlike most engine parts, there's no workaround. If the PCM is gone, the engine doesn't run.\u003c\/p\u003e\n\u003cp\u003eThe #865857T05 is a genuine Mercury OEM Propulsion Control Module, not a remanufactured unit or an aftermarket substitute. At this level of the engine management system, genuine matters. Mercury programs these modules to exact calibration specs for the specific engine application — fuel maps, rev limiters, shift points, and protection parameters are all baked in from the factory. An incorrect or improperly calibrated module can cause poor performance, fault codes, or damage to other drivetrain components.\u003c\/p\u003e\n\u003cp\u003eThis is a significant investment, and it deserves a call before you order. Our team can help confirm fitment and walk you through what to expect with installation and any required calibration steps. Reach us at 816-841-3364 — we'd rather spend five minutes on the phone with you now than have you deal with a return or a misapplication later. When you need the right PCM, this is it.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eNormalized SKU:\u003c\/b\u003e 865857T05\u003cbr\u003e\u003cb\u003eUPC Code:\u003c\/b\u003e 745061750616\u003c\/p\u003e","brand":"Mercury Marine","offers":[{"title":"Default Title","offer_id":53399442784561,"sku":"MRC-865857T05","price":2867.49,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0015\/7184\/8291\/files\/mercury-pcm-propulsion-control-module-865857t05-745061750616-1230156665.jpg?v=1774866184","url":"https:\/\/www.firstchoicemarine.com\/products\/mercury-pcm-propulsion-control-module-865857t05","provider":"First Choice Marine","version":"1.0","type":"link"}