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This listing is for a brand new, genuine OEM left-hand (LH) side replacement fuel tank assembly. This is a premium, heavy-duty commercial component designed to completely restore your professional mowing equipment without leaking. Brand: Genuine Husqvarna / RedMax Commercial OEM. Part Number: 589997305 (589 99 73-05). Factory Supersedures & Upgrades: Replaces older part numbers 584280302, 576668402, 589997301, 589997302, and 589997304. Directly cross-references with current service kit upgrades 589997314 and 589997315. Placement on Machine: Left-Hand Side (From operator’s seating perspective). Color: Sleek Factory Black Finish. PREMIUM COMMERCIAL HARDWARE QUALITY 1. Molded from high-density, fuel-resistant polymer engineered to endure extreme daily vibration, continuous UV exposure, and rough terrain without cracking or degrading. Direct factory replacement ensures proper evaporative vapor seals, accurate fuel gauge level positioning, and tight fuel line port connections. Direct drop-in assembly that completely resolves warped tank walls, seam separation, fuel line neck leaks, or clogged internal pickups. EQUIPMENT FITMENT & BRAND COMPATIBILITY This left-hand fuel tank is engineered specifically to service high-end commercial zero-turn mower frameworks. It is a verified factory fit across select models for the following names. Husqvarna PZ Series Commercial Zero-Turn Mowers. (Commonly found on premium 2021 and newer commercial platforms requiring this profile layout). RedMax Commercial Zero-Turn Mowers. Cross-compatible with other premium Husqvarna Group commercial configurations requiring this exact left-hand black tank footprint. Note: Commercial fuel system fittings and evaporative emissions (EPA) line setups can vary slightly by your machine’s exact production year suffix or engine variant. This completely isolates the fuel line necks and mounting paths from any risk of structural transit damage or scuffing. Fast dispatch out of our warehouse facility.