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Description
09190300 – CAP-FUEL-3.50 Ratchet Inlet Vent (Genuine Ariens / Gravely OEM Part)
The 09190300 CAP-FUEL-3.50 Ratchet Inlet Vent is a genuine Ariens / Gravely OEM fuel tank cap, engineered to provide a secure seal and proper ventilation for fuel tanks with a 3.50-inch ratchet inlet. This vented fuel cap is designed to maintain correct internal tank pressure while helping prevent fuel leaks during operation of outdoor power equipment.
Manufactured to original Ariens and Gravely specifications, this fuel cap features a ratcheting lock mechanism that ensures a consistent, tight fit on compatible fuel tank openings. The integrated vent allows controlled airflow into the tank, supporting steady fuel delivery, reliable engine performance, and safe operation under varying temperature and load conditions.
Product Details
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Part Number: 09190300
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Part Name: Fuel Cap – 3.50″ Ratchet Inlet Vent
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Brand: Ariens / Gravely
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OEM Status: Genuine OEM replacement part
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Inlet Size: 3.50 inches
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Design: Ratchet-lock fuel cap
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Vent Style: Vented
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Function: Seals fuel tank and regulates internal pressure
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Condition: New
Compatibility & Applications
The 09190300 fuel cap is used on select Ariens and Gravely lawn and garden equipment equipped with a 3.50-inch ratchet-style fuel tank inlet. It is commonly found on larger-capacity fuel tanks used in residential and commercial zero-turn mowers and lawn equipment.
Ariens Applications Include:
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Ariens zero-turn mower models with large fuel tank inlets
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Selected Ariens commercial and residential platforms
Gravely Applications Include:
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Gravely ZT and ZTX series models with 3.50″ fuel tank openings
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Gravely commercial and residential zero-turn mowers
This fuel cap is typically used on equipment powered by Kohler and Kawasaki gasoline engines, where proper fuel tank ventilation is critical for consistent performance.
Designed for direct OEM replacement, the 09190300 Ariens / Gravely fuel cap restores original fit, sealing performance, and fuel system reliability without modification.

