{"product_id":"mercury-thun-21-rh-qs5008","title":"Mercury – Thunderbolt Propeller | High-Performance Series | High-Polished Stainless Steel | QS5008X","description":"\u003cp\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003eMercury – Thunderbolt Propeller | High-Performance Series | High-Polished Stainless Steel | QS5008X\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003eOverview\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan data-preserver-spaces=\"true\"\u003eThere’s a moment every boater knows—the quiet breath before you push the throttle forward. You feel the hull settle, the wheel straighten, and the engine waits for your signal. When you’re running a propeller that you trust, that moment isn’t tense. It’s exciting. \u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003eThe Thunderbolt propeller creates that kind of confidence. It grabs the water cleanly, lifts the boat without hesitation, and stays steady even when the wind or the waves try to push back. It’s the sort of part you rely on because it performs the same way every single trip, no matter how far out you go.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003eKey Features\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan data-preserver-spaces=\"true\"\u003eThree-blade stainless steel propeller engineered for high-horsepower performance\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan data-preserver-spaces=\"true\"\u003eHigh-polished finish designed to reduce drag and maximize durability\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan data-preserver-spaces=\"true\"\u003e14.8-inch diameter and 21-inch pitch (manufacturer spec listed as 14.75\" x 21\")\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan data-preserver-spaces=\"true\"\u003eRight-hand rotation for compatible Mercury setups\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan data-preserver-spaces=\"true\"\u003eLarge-diameter geometry for powerful lift and improved acceleration\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan data-preserver-spaces=\"true\"\u003eDesigned to work with Quicksilver modular hub systems (see hub selection guidelines)\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003eEngine \u0026amp; Boat Compatibility\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan data-preserver-spaces=\"true\"\u003eIdeal for Mercury V6 outboards used in high-horsepower applications\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan data-preserver-spaces=\"true\"\u003eSuitable for vee-bottom sport boats that need strong midrange and top-end performance\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan data-preserver-spaces=\"true\"\u003eExcellent match for offshore fishing boats that demand reliability in varying water conditions\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan data-preserver-spaces=\"true\"\u003eWorks well on cruisers and performance-focused sterndrive boats\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan data-preserver-spaces=\"true\"\u003eCompatible with a broad range of Mercury engines that pair with right-hand rotation props\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003ePerformance \u0026amp; Practical Benefits\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan data-preserver-spaces=\"true\"\u003eThe Thunderbolt QS5008X delivers a performance you can feel immediately. The combination of stainless steel rigidity and refined blade geometry helps the propeller stay tight and responsive, even under heavy load or aggressive acceleration. The 21-pitch design delivers strong midrange thrust and a smooth, efficient climb into plane, making it a favorite for boaters who balance speed with control.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan data-preserver-spaces=\"true\"\u003eOnce you’re running at pace, the prop holds its grip through turns, providing that steady, connected feel at the helm. T\u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003ehe blades cut cleanly through rough chop without vibration, and the polished stainless surface helps maintain consistent performance by resisting drag and corrosion. Whether you’re pushing toward offshore grounds or taking a long cruise along the coast, the prop keeps the ride smooth, predictable, and secure.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan data-preserver-spaces=\"true\"\u003eF\u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003eor boaters who run long distances or spend a lot of time at higher speeds, this propeller often feels like a quiet upgrade to the whole boat. It lightens the steering load, reduces slip, and brings a level of balance that you notice mile after mile.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003eWhy Buy OEM\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan data-preserver-spaces=\"true\"\u003eChoosing an OEM Mercury Marine part means you’re choosing precision. Every Thunderbolt propeller is built with the exact metallurgy, blade geometry, and balancing that Mercury engineered for peak performance. Aftermarket props may look similar, but they rarely match the consistency and fitment accuracy that an engine demands. With OEM, you get durability, reliable handling, and the peace of mind that comes from using the part built for your powertrain. It’s the smart choice if you want something that works right the first time and keeps working season after season.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003eFAQ\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003eQ1: Which Mercury engines does the QS5008X fit?\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan data-preserver-spaces=\"true\"\u003e It’s designed for Mercury V6 outboards and other applications requiring a right-hand rotation stainless steel prop in this size.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003eQ2: How is it different from aftermarket props?\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan data-preserver-spaces=\"true\"\u003e OEM balancing, stainless steel quality, and optimized blade geometry deliver smoother handling, stronger lift, and better long-term durability.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003eQ3: How do I confirm this is the right propeller?\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan data-preserver-spaces=\"true\"\u003e Match the diameter, pitch, and rotation to your existing prop or consult your engine’s manual for approved sizing.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003eQ4: Can I use this prop in both freshwater and saltwater?\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan data-preserver-spaces=\"true\"\u003e Absolutely. The polished stainless construction resists corrosion in all marine environments.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003eQ5: Is installation easy?\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan data-preserver-spaces=\"true\"\u003e Yes. With the correct hub kit, installation is straightforward and can be completed with common tools.\u003c\/span\u003e\u003c\/p\u003e","brand":"Mercury","offers":[{"title":"Default Title","offer_id":46932808401187,"sku":"QS5008","price":725.9,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0783\/7410\/9475\/files\/PV682021.jpg?v=1720534095","url":"https:\/\/partsvu.com\/en-au\/products\/mercury-thun-21-rh-qs5008","provider":"PartsVu","version":"1.0","type":"link"}