Fuel Gas Tank Assemb with Cap, Lawn Tractor Gas Tank 2.5 GAL NON-EPA, Compatible with Husqvarna, Craftsman, Poulan & More Lawn Mowers, Replace#: 581290101, 532407489

What It Is

This is a complete fuel tank assembly (tank, cap, and mounting hardware) for lawn tractors, designed to replace a damaged or leaking tank on riding mowers. It’s a 2.5-gallon non-EPA (pre-2012 emissions standard) unit, intended for older Husqvarna, Craftsman, Poulan, and similar models.

Fitment & Compatibility

• Cross-reference numbers: Replaces OEM #581290101 and 532407489. Verify your mower’s part number matches one of these.
• Brands: Fits many Husqvarna, Craftsman, Poulan, and some MTD/John Deere models—but not all. Check your model number (e.g., 917.xxxxx for Craftsman) on the mower’s tag.
• Measurements: Tank is roughly 16" x 10" x 8". Measure your old tank’s mounting hole spacing (center-to-center) and outlet diameter. This tank uses a 1/4" NPT barbed outlet.
• EPA note: This is non-EPA, meaning it lacks the vapor-recovery system. It will not fit newer (post-2012) mowers that require an EPA-compliant tank. If your mower has a charcoal canister or vented cap, this won’t work.
• Deck size: Not relevant—tank fit depends on frame and engine bay layout, not deck size.

Key Things to Know

• Quality concerns: 2.9/5 rating from 32 reviews. Common complaints: thin plastic, warping at mounting points, and caps that don’t seal well. Inspect carefully upon arrival.
• Installation difficulty: Moderate. You’ll need to drain old fuel, disconnect fuel line, remove bolts, and swap the tank. Expect 30–60 minutes. Use Teflon tape on the outlet fitting to prevent leaks.
• Cap fitment: The included cap is non-vented. If your mower requires a vented cap (most older models do), you’ll need to buy one separately. A non-vented cap can cause vapor lock or fuel starvation.
• Return policy: Check the seller’s return window—many buyers report fitment issues and difficulty returning. Measure twice before ordering.

Should You Buy It

This tank is a budget-friendly option if you have an older non-EPA mower and your original tank is cracked or leaking. But given the low rating and common fitment/quality issues, it’s best for someone comfortable with minor modifications (drilling new holes or swapping the cap). If you want a guaranteed bolt-on replacement, spend more on an OEM tank from your mower’s brand.