KOONDHEEND MC-400 Check Valve Repair Tools and MC-300 Fuel Tool Kit for Harley Fuel Tank Check Valve Tool Compatible with Harley Davidson 2001-2026 EFI Models

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• 【2001-2026 Harley EFI Fit 】 Fuel Tools Perfectly compatible with all 2001-2026 Harley-Davidson fuel-injected models (direct replacement for OEM MC-400 & MC-300)
• 【Must-Watch Installation Video】Search for " MC400 Check Valve Repair Tools Installation Video" on the video website to get step-by-step visual guidance—we strongly recommend watching it before starting to avoid common mistakes and save your time and effort!
• 【No Fuel Tank Removal = Save Hours of Labor】Our professional MC400 tool lets you rebuild the check valve in 15-20 minutes without draining, removing, or disconnecting the fuel tank. Skip the $200+ dealership service and the mess of tank disassembly—get your Harley back on the road faster.
• 【Pro Installation Hacks to Avoid Leaks】Critical tips to ensure a perfect seal: ① Lubricate O-rings and tool tips with clean oil/fuel before use to prevent tearing. ② 100% clean the valve housing of old rubber debris (even tiny fragments cause seal failure). ③ New O-rings appear smaller than swollen old ones—they expand under fuel pressure for a tight, leak-proof fit.
• 【Premium Durable Components + Complete All-In-One Kit】 Includes 10 high-temperature Viton O-rings (5 large + 5 small), 5 corrosion-resistant stainless steel springs, 10 installation hooks, and the MC400 tool—all neatly packed in a heavy-duty storage case. Viton O-rings resist fuel degradation and extreme temperatures (-40°F to 400°F), outlasting generic rubber seals by 3x for long-lasting leak protection.
• 【Hassle-free service】harley davidson check valve repair kit Backed by a 1-year limited warranty against material and workmanship defects. If you encounter any issues with installation or parts, our customer support team is ready to assist with replacements, refunds, or additional guidance—buy with confidence for your Harley maintenance