{"product_id":"ace-redrive-yamaha-phazer-toothed-85hp","title":"Ace Redrive - Yamaha Phazer Toothed Belt PSRU (Up to 85HP)","description":"\u003cdiv style=\"font-family: sans-serif; color: #1a1a1a;\"\u003e\n\u003ch2 style=\"color:#B22222;\"\u003eAce Redrive – Yamaha Phazer Toothed Belt PSRU (Up to 85HP)\u003c\/h2\u003e\n\u003cp style=\"font-size:1.05em;\"\u003e\u003cstrong\u003eUnlock the Yamaha Phazer's aircraft potential — a precision toothed belt PSRU purpose-built for this legendary snowmobile engine.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe Yamaha Phazer engine has earned a devoted following in the experimental aircraft community for good reason: it's a compact, liquid-cooled, fuel-injected V-Twin that delivers impressive power in a lightweight package — and it's available used for a fraction of the cost of certified aviation engines. The Ace Aviation Phazer Redrive is engineered specifically to mate this engine to your propeller with precision, reliability, and the legendary Ace build quality that builders worldwide have come to trust.\u003c\/p\u003e\n\u003cp\u003eWith over \u003cstrong\u003e685 Ace redrives flying globally\u003c\/strong\u003e and now available through the \u003cstrong\u003eexclusive US \u0026amp; Canada distributor\u003c\/strong\u003e, you get factory-quality engineering with domestic shipping and real support.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch3\u003e🔧 Engine Compatibility\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eYamaha Phazer (all variants) — 499cc liquid-cooled V-Twin\u003c\/li\u003e\n\u003cli\u003eCompatible Yamaha snowmobile V-Twin derivatives (confirm fitment before ordering)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch3\u003e⚙️ Technical Specifications\u003c\/h3\u003e\n\u003ctable style=\"width:100%; border-collapse:collapse;\"\u003e\n\u003ctr style=\"background:#f5f5f5;\"\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e\u003cstrong\u003eDrive Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eToothed (Synchronous) Belt\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e\u003cstrong\u003eMax HP Rating\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eUp to 85HP\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#f5f5f5;\"\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e\u003cstrong\u003eBearings\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003ePremium SKF (industrial grade)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e\u003cstrong\u003eBelt Tensioning\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eEccentric shaft adjuster (5-min setup)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#f5f5f5;\"\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e\u003cstrong\u003eShips As\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eFully assembled\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003chr\u003e\n\u003ch3\u003e🏆 Why the Yamaha Phazer?\u003c\/h3\u003e\n\u003cp\u003eThe Phazer engine is a favorite among experimental aircraft builders because:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eLiquid-cooled\u003c\/strong\u003e — More consistent operating temperatures than air-cooled alternatives, ideal for sustained flight\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFuel injected\u003c\/strong\u003e — Reliable cold starts, consistent fuel delivery at altitude\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompact \u0026amp; lightweight\u003c\/strong\u003e — Excellent power-to-weight ratio for ultralight applications\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProven reliability\u003c\/strong\u003e — Millions of hours in snowmobile use before reaching an airframe\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAffordable\u003c\/strong\u003e — Used Phazer engines are widely available at a fraction of certified engine costs\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch3\u003e✅ Why Builders Choose Ace\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eEccentric Shaft Tensioner\u003c\/strong\u003e — Set belt tension in under 5 minutes with a single Allen key. No special tools, no guesswork.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSKF Bearings\u003c\/strong\u003e — Industrial-grade, built for hundreds of flight hours.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUS-Stocked\u003c\/strong\u003e — Ships from the USA. No import delays, no surprise tariff invoices.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFully Assembled\u003c\/strong\u003e — Arrives ready to install. No machining required.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDedicated US Support\u003c\/strong\u003e — Ace Redrives USA provides real, responsive technical support for your installation.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch3\u003e📦 What's Included\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eComplete Ace Aviation Toothed Belt Redrive unit (fully assembled)\u003c\/li\u003e\n\u003cli\u003eAll nuts and bolts for joining redrive components\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003e⚠️ Note:\u003c\/strong\u003e Keyless bush for small pulley-to-crankshaft connection is \u003cem\u003enot included\u003c\/em\u003e (customer-supplied). Mounting bolts from backplate to engine crankcase are \u003cem\u003enot included\u003c\/em\u003e (customer-supplied).\u003c\/p\u003e\n\u003cp style=\"font-size:0.9em; color:#555;\"\u003eQuestions about fitment? Contact Ace Redrives USA — we're here to help you get the right unit for your build.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Ace Aviation","offers":[{"title":"Default Title","offer_id":48240973414570,"sku":"85TBRDYP","price":1599.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0705\/3800\/2602\/files\/1-Redrives-incl.GKToothpulleys.FromFeb.2026_Page_1_Image_0006.jpg?v=1777095759","url":"https:\/\/aceredrives.com\/products\/ace-redrive-yamaha-phazer-toothed-85hp","provider":"Ace Redrives USA","version":"1.0","type":"link"}