Fuel Tank Cap for Zero Turn Riding Mower, Vented Gas Cap – Compatible with Craftsman Z6000

What It Is

This is a vented fuel tank cap designed to replace the original cap on a Craftsman Z6000 zero-turn riding mower. It seals the fuel tank to prevent leaks while allowing air to enter as fuel is consumed, preventing vacuum lock that can stall the engine.

Fitment & Compatibility

• Confirmed fit: Craftsman Z6000 series zero-turn mowers (model numbers typically start with 917.XXXX).
• Check before buying: Remove your current cap and measure the inside diameter of the fuel tank neck – this cap fits a standard 1.5-inch opening.
• OEM vs aftermarket: This is a non-OEM replacement. It matches the original cap’s venting design but may differ slightly in plastic color or texture.
• Not compatible: Models with a non-vented cap (check if your cap has a small hole or vent lever). Also not for push mowers or older Craftsman riding mowers with a different neck diameter.

Key Things to Know

• Venting is critical: If your mower stalls after a few minutes or the tank “hisses” when opened, the old cap is likely clogged. This vented cap fixes that.
• Installation is trivial: Twist off the old cap, twist on the new one – no tools needed. Takes 10 seconds.
• Quality note: Only 1 review, so long-term durability is unproven. Look for a cap with a rubber gasket to prevent leaks – inspect the seal on arrival.
• Common gotcha: Some aftermarket caps are too tight or loose. If it doesn’t thread smoothly, return it immediately – a loose cap can leak fuel on hot engine parts.

Should You Buy It

If you own a Craftsman Z6000 and your current cap is leaking, stuck, or causing fuel starvation, this is a cheap, easy fix. With only one review, it’s a bit of a gamble, but for $12.99, it’s worth trying before buying a pricier OEM part. Not for other mower brands or models.