TruePower Replacement Spout and Vent Kit

What It Is

This is a replacement gas cap and vent assembly for lawn mowers, trimmers, and other small engines. It replaces a broken cap or a non-venting cap that causes fuel starvation or vapor lock.

Fitment & Compatibility

• Check cap opening diameter: Most common sizes are 1.25" (32mm) and 1.5" (38mm). Measure your fuel tank opening before buying.
• Thread type: Works with standard plastic threads on most Briggs & Stratton, Tecumseh, Honda, Kohler, and Kawasaki engines. Not for metal-threaded caps.
• OEM cross-reference: Often replaces Briggs & Stratton 691659, 692318; Tecumseh 34950; and generic no-name caps.
• Deck size irrelevant: This is a fuel system part, not a deck part—ignore deck size.
• Vent type: Includes a one-way vent that allows air in but prevents fuel spillage when tipped. Not suitable for pressure-vacuum caps on some older machines.

Key Things to Know

• Installation: Push the rubber grommet into the cap, then screw on. No tools needed. Takes 30 seconds.
• Vent performance: Some users report the vent can clog after a season of use, especially with ethanol-blended fuel. Clean with a pin if needed.
• Material: Plastic cap with rubber gasket. Not compatible with metal fuel tanks that use a threaded metal cap.
• Common gotcha: If your mower runs fine with the cap loose but stalls with it tight, the old cap’s vent is clogged—this kit solves that.

Should You Buy It

Get this if your mower’s cap is cracked, lost, or the vent is clogged and you need a cheap, quick fix. It’s a universal fit for most standard plastic-threaded tanks, but measure your opening first. Not for metal-threaded caps or pressure-type systems. At $7.90, it’s a low-risk trial part.