Ferrea Exhaust Valve – 32.5mm Head, 5.47mm Stem for Polaris RZR XP900

Description

Competition exhaust valve for the 2011–2012 Polaris RZR XP900 delivering model-specific fitment for reliable engine sealing and consistent operation.

Brand: Ferrea

• 32.5mm head diameter — Head size is specified to match valve-seat geometry, supporting intended port flow and seating profile for the XP900 cylinder head.
• 5.47mm stem diameter — Stem diameter defines guide engagement and lateral stability within the valve guide to maintain alignment through duty cycles.
• Competition exhaust valve — Designed and specified for competition use on the exhaust side, with dimensions tuned to the application listed.
• Set of 4 — Supplied in a complete set to service all exhaust valves on the specified engine without partial replacements.

The description focuses on dimensional accuracy and application compatibility. Each listed dimension corresponds directly to the valve-to-seat and valve-to-guide interfaces on the 2011–2012 Polaris RZR XP900, ensuring parts match the engine’s intended geometry.

Why these details matter

• Correct head diameter ensures the valve seats in the intended contact area of the cylinder head, which is critical for sealing exhaust gases.
• Appropriate stem diameter maintains correct clearances in the valve guide to minimize tilt and wear while preserving predictable valve motion.
• Supplying a full set of four exhaust valves allows synchronized replacement and consistent valve timing and sealing across all cylinders.

Contents:

• 4 competition exhaust valves

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