{"product_id":"briggs-stratton-lo206-lower-tank-mount-bolt-heavy-duty-steel-oem-spec","title":"Briggs \u0026 Stratton LO206 Lower Tank Mount Bolt - Heavy-Duty Steel - OEM Spec","description":"\u003cp\u003eSecuring your fuel system with premium \u003cstrong\u003ego kart parts\u003c\/strong\u003e is critical to maintaining consistent fuel delivery and chassis balance under high-G cornering. The Briggs \u0026amp; Stratton Lower Tank Mount Bolt (MPN 691685, superseding 555044) is engineered to anchor your fuel tank directly to the chassis or engine mount, eliminating harmonic vibrations that can lead to fuel foaming or catastrophic mount failure. Whether you are running a vintage Raptor flathead or dialing in a modern \u003cstrong\u003ecrg fs4 briggs lo206 kart\u003c\/strong\u003e, this heavy-duty fastener ensures your fuel load remains perfectly static, minimizing weight transfer and allowing you to hit your apexes with absolute precision.\u003c\/p\u003e\u003ch2\u003eOptimizing Your LO206 Motor Engine Setup\u003c\/h2\u003e\u003cp\u003eEvery component on your kart matters when you are chasing hundredths of a second. While most racers focus on tire prep or upgrading their \u003cstrong\u003ekart racing helmets\u003c\/strong\u003e for better aerodynamics, the true foundation of speed lies in chassis stability and powertrain reliability. A loose fuel tank can disrupt the harmonic balance of your \u003cstrong\u003elo206 motor\u003c\/strong\u003e, leading to inconsistent fuel pressure and mid-corner handling unpredictability. By upgrading to this OEM-spec lower tank mount bolt, you lock down the fuel system, ensuring that the \u003cstrong\u003ebriggs and stratton lo206 horsepower\u003c\/strong\u003e is transferred directly to the track without being compromised by shifting dead weight.\u003c\/p\u003e\u003ch2\u003eBuilt for the Best Engines in Karting\u003c\/h2\u003e\u003cp\u003eDesigned to withstand the brutal impacts and high-frequency vibrations of competitive sprint racing, this bolt is a non-negotiable hardware upgrade for the \u003cstrong\u003ebest engines\u003c\/strong\u003e on the grid. Manufactured to strict Briggs \u0026amp; Stratton OEM tolerances, it provides superior thread engagement and shear strength compared to standard hardware store bolts. When you are pushing the limits of grip, you need hardware that won't stretch, back out, or shear under load.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM Precision Fit:\u003c\/strong\u003e Exact replacement for SKU 555044 (superseded by 691685) for seamless installation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVibration Dampening:\u003c\/strong\u003e Secures the tank to prevent harmonic resonance and fuel foaming.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh-Shear Strength:\u003c\/strong\u003e Heavy-duty steel construction withstands severe track impacts and curb strikes.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight Transfer Control:\u003c\/strong\u003e Eliminates tank shift to maintain optimal chassis balance and cornering speed.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUniversal Compatibility:\u003c\/strong\u003e Perfect for Raptor flatheads and modern LO206 racing platforms.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCorrosion Resistant:\u003c\/strong\u003e Treated finish prevents rust and degradation from spilled race fuel.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Integrity:\u003c\/strong\u003e Rolled threads ensure maximum grip and prevent backing out under high RPMs.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Is this bolt a direct replacement for the original 555044 bolt?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eA:\u003c\/strong\u003e Yes, this is the official OEM-spec replacement. The original part number 555044 has been superseded by 691685, ensuring this bolt is the correct, updated fit for your Briggs \u0026amp; Stratton engine.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Why is it important to use a heavy-duty bolt for the fuel tank?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eA:\u003c\/strong\u003e Karting environments involve high-frequency vibrations and intense G-forces. A standard hardware store bolt may stretch or shear under these conditions, leading to a loose fuel tank, fuel foaming, and potential engine performance issues. This OEM-spec bolt is designed to maintain structural integrity under race conditions.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Does this bolt fit both the LO206 and older Raptor engines?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eA:\u003c\/strong\u003e Yes, this hardware is compatible with both modern LO206 racing platforms and vintage Raptor flathead engines, providing a secure mount for the fuel tank across various Briggs \u0026amp; Stratton setups.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Should I use thread locker when installing this bolt?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eA:\u003c\/strong\u003e While the rolled threads on this bolt provide excellent grip, using a small amount of medium-strength thread locker is a common best practice in karting to ensure the fastener does not back out due to engine harmonics.\u003c\/p\u003e\n\n\u003ch3\u003eRelated Products From Vendor\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"\/products\/124332lo-local-option-206-engine-all-new-2025-inventory-with-new-coil-124332lo\"\u003eBriggs Local Option 206 Engine with 2025 Updates and New Coil\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/box-stock-lo206-engine-with-new-style-coil-124332\"\u003eLO206 Engine Box Stock w\/ New Style Coil \u0026amp; Guide for Beginners The Complete Starter Setup and Tuning Overview\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/555635-cylinder-head-555635\"\u003eBriggs \u0026amp; Stratton LO206 Animal Cylinder Head - OEM Spec - LO206 Legal\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/555576-ns-new-style-recoil-for-2025-84007752\"\u003eBriggs \u0026amp; Stratton LO206 New Style Recoil Starter - OEM Pull Start - Briggs Animal\/206 Legal\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/4271-five-pack-briggs-fuel-pumps-legal-for-lo-206-classes-4271\"\u003eFive-Pack of Legal Briggs Fuel Pumps for LO-206 Kart Classes\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"SwiftKarting","offers":[{"title":"Default Title","offer_id":52381825925439,"sku":"'555044","price":3.57,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0968\/6843\/4239\/files\/raptoroemparts-555044-bolt-tank-mount-lower-superseded-by-691685-555044.jpg?v=1773224556","url":"https:\/\/metro-merch-3.myshopify.com\/products\/briggs-stratton-lo206-lower-tank-mount-bolt-heavy-duty-steel-oem-spec","provider":"Metro Merch","version":"1.0","type":"link"}