{"product_id":"a07-stainless-steel-crank-pulley-washer","title":"CMI Stainless Steel Crank Pulley Bolt \u0026 Washer Kit | VW Type 1 Air-Cooled | Upgrade Hardware (#A07)","description":"\u003ch2\u003e\u003cb\u003eCMI Stainless Steel Crank Pulley Bolt \u0026amp; Washer Kit | VW Type 1 Air-Cooled (#A07)\u003c\/b\u003e\u003c\/h2\u003e\u003cp\u003eCMI high-strength \u003cb\u003estainless steel crank pulley bolt and washer kit\u003c\/b\u003e for VW Type 1 air-cooled engines. A direct upgrade over the soft, mild-steel factory hardware that strips, stretches, and corrodes — common failure points on stock and performance air-cooled builds alike.\u003c\/p\u003e\u003ch3\u003e\u003cb\u003eWhy the Factory Crank Pulley Bolt Fails\u003c\/b\u003e\u003c\/h3\u003e\u003cp\u003eThe stock VW crank pulley bolt is a known weak point on the Type 1 engine. It threads into the front of the crankshaft and carries the load of the entire pulley, fan belt, and alternator system. Over time — especially on engines apart multiple times for service — the factory bolt threads stretch, the head deforms, and the washer corrodes against the pulley face. The CMI kit replaces both the bolt and washer with stainless steel parts machined to higher tolerances than the factory hardware.\u003c\/p\u003e\u003ch3\u003e\u003cb\u003eVehicle Fitment\u003c\/b\u003e\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eAll VW Type 1 air-cooled engines:\u003c\/b\u003e Beetle, Karmann Ghia, Type 3, Thing, Bus (through 1971)\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eKit cars:\u003c\/b\u003e Dune buggies, sand rails, and kit cars running Type 1 engines\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cb\u003eWill NOT fit:\u003c\/b\u003e Type 4 engines (1972+ Bus, 411, 412, Porsche 914), which use a different crank pulley fastener system.\u003c\/p\u003e\u003ch3\u003e\u003cb\u003eKey Features \u0026amp; Benefits\u003c\/b\u003e\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eStainless Steel Construction:\u003c\/b\u003e Resists the corrosion and thread stretch that plague the factory plated-steel bolt and washer.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eHigher Tolerances:\u003c\/b\u003e Machined to tighter tolerances than the factory hardware for a secure, reliable clamp on the crank.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eComplete Kit:\u003c\/b\u003e Bolt and washer supplied together — a quick, low-cost upgrade that replaces the fastener only.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003e\u003cb\u003eTechnical Specifications\u003c\/b\u003e\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eMaterial:\u003c\/b\u003e Stainless steel (bolt and washer)\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eApplication:\u003c\/b\u003e Crankshaft front pulley fastener\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eSold As:\u003c\/b\u003e Bolt + washer kit\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eManufacturer:\u003c\/b\u003e CMI\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003ePart Number:\u003c\/b\u003e #A07\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003e\u003cb\u003eFrequently Asked Questions\u003c\/b\u003e\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eDo I need to use thread locker?\u003c\/b\u003e Yes. Even with upgraded stainless hardware, a medium-strength (blue) thread locker on the crank pulley bolt is standard practice — the bolt sees constant vibration and harmonic load.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eWhat torque spec should I use?\u003c\/b\u003e Follow the standard VW crank pulley bolt torque spec for your engine (typically around 33–40 ft-lbs). Over-torquing into the crank threads can strip the crankshaft, a much more expensive failure.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eWill stainless react with my aluminum pulley?\u003c\/b\u003e The stainless washer won't corrode against the pulley face the way the factory plated-steel washer does. A light film of anti-seize on the bolt threads is recommended for future removal.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eCan I reuse my old pulley?\u003c\/b\u003e Yes — this kit replaces the fastener only, not the pulley. If your pulley is in good shape, this is a quick, low-cost upgrade.\u003c\/li\u003e\n\u003c\/ul\u003e\u003chr\u003e\u003ch3\u003e\u003cb\u003eExplore Related Categories\u003c\/b\u003e\u003c\/h3\u003e\u003cp\u003eServicing your engine? Browse \u003ca href=\"\/collections\/engine-parts\"\u003eEngine Parts\u003c\/a\u003e, \u003ca href=\"\/collections\/hardware\"\u003eHardware\u003c\/a\u003e, and our full \u003ca href=\"\/collections\/all-vw-aircooled\"\u003eVW Air-Cooled\u003c\/a\u003e catalog.\u003c\/p\u003e","brand":"CMI","offers":[{"title":"Default Title","offer_id":44410538360947,"sku":"#A07","price":60.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0278\/2760\/1523\/files\/1771976519823_b2f8f6d2-add5-417f-9cd0-1d2539631dff.png?v=1771979042","url":"https:\/\/www.washburnsmetal.com\/products\/a07-stainless-steel-crank-pulley-washer","provider":"Washburn's Metal","version":"1.0","type":"link"}