Air Filter > MAZDA RX-8 (SE3P) 1.3L RENESIS ROTARY ENGINE > N3H1-13-Z40 > GENUINE PART
✔ Genuine OEM Engine Component (Mazda)
✔ Part Number: N3H1-13-Z40 (Mazda Original Equipment/OE Number)
✔ Component Name: Engine Air Filter (Element, Air Cleaner)
✔ Primary Application: Mazda Sports Coupe: * Mazda RX-8 (SE3P Chassis): Specifically designed for all years and versions of the 1.3L RENESIS (13B-MSP) Twin-Rotor Rotary Engine (approx. 2004–2011).
✔ OE Cross-Reference: Often superseded or replaced by the part number N3H1-13-Z40A-9U or N3H1-13-Z40-9U.
✔ Engine Type: Exclusively for the high-revving Rotary Engine.
✔ Filter Type: High-quality Dry Paper Panel Filter (Rectangular Insert).
✔ Function: Filters the high volume of air drawn into the rotary engine's intake system. Maintaining the correct, unrestricted airflow and protecting the trochoid housing and apex seals from abrasive contaminants is critical for the longevity and performance of the RENESIS engine, especially at its 9,000 RPM redline.
This is a Genuine OEM Engine Air Filter, identified by the Mazda part number N3H1-13-Z40. This component is the factory-original, standardized part that is absolutely critical for the health and high-performance operation of the Mazda RX-8 and its unique RENESIS 13B Rotary Engine.
The RENESIS engine's design, which relies on precise tolerances and operates at very high RPMs, is extremely sensitive to contaminants and air restriction. Using the Genuine Part (N3H1-13-Z40) (or its official replacement, N3H1-13-Z40A-9U) ensures:
Guaranteed Fitment and Sealing: Manufactured to the exact specifications for a perfect, airtight seal within the air box housing. Any air bypass will introduce damaging dust and grit directly into the rotary combustion chambers.
Optimized Airflow: The media is engineered by Mazda to provide the ideal balance between high filtration efficiency and minimal air flow restriction, which is essential for the engine to breathe properly and achieve maximum power and efficiency, especially in the high-RPM range.
Engine Protection: Provides superior, guaranteed protection for the sensitive components of the rotary engine, including the apex seals and rotor housing surfaces.
For a rotary engine like the RX-8's, using a Genuine or high-quality OEM-spec filter is strongly recommended due to the engine's unique needs.
Regular replacement of this Genuine Filter, according to the vehicle's maintenance schedule, is essential for maintaining peak engine output and overall engine health.
Compatible Vehicle (Primary Application - ROTARY ENGINE):
✔ Mazda RX-8 (SE3P Chassis, 1.3L RENESIS Rotary Engine, approx. 2004–2011)
Part Number:
✔ N3H1-13-Z40 (Engine Air Filter - Genuine Mazda) Supersedes/Replaced By: N3H1-13-Z40A, N3H1-13-Z40A-9U
Part Type:
✔ Air Filter (Engine) (Genuine Part)
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