Core Identification
This NISSAN 13264-4JM0A Valve Rocker Arm Cover Assembly is a premium OE replacement manufactured by EEM Auto Parts, precisely engineered to match Nissan's strict specifications for their QR25DE 2.5L engine valve train systems. Constructed with high-grade reinforced plastic and a durable sealing gasket, it effectively protects critical valvetrain components while preventing oil leaks, ensuring optimal engine performance and longevity. As an essential engine component, it encloses the rocker arms, camshafts, valves, and valve springs, maintaining proper lubrication and preventing contaminants from entering the cylinder head.
2. Core Components & Construction
The 13264-4JM0A Valve Cover features a robust reinforced plastic body that provides exceptional resistance to high engine temperatures (up to 150°C) and chemical corrosion from engine oils and additives. It includes a precision-molded silicone rubber gasket with integrated sealing beads for a leak-proof seal, designed to withstand extreme temperature fluctuations and maintain elasticity over time. The cover incorporates precisely located mounting bosses and bolt holes for accurate alignment with the cylinder head, ensuring proper torque distribution and secure installation. All components undergo rigorous quality control checks to meet or exceed OE performance standards.
3. Core Function
The valve rocker arm cover assembly plays a critical role in protecting the engine's valvetrain components from dirt, debris, and moisture while retaining engine oil within the cylinder head. It maintains proper lubrication of rocker arms, camshafts, and valves, reducing friction and wear for extended engine life. The cover also helps regulate internal crankcase pressure through its integrated PCV valve port (where applicable), preventing harmful gas buildup and ensuring efficient engine operation. A worn or damaged valve cover can lead to oil leaks, reduced engine performance, increased oil consumption, and potential damage to valvetrain components due to contamination.
4. Applicability (Full Nissan Coverage)
- Nissan Rogue (2016-2020): USA built, 2.5L QR25DE engine
- Nissan Altima (2016-2018): 2.5L QR25DE engine
- Nissan Frontier (2016-2020): 2.5L QR25DE engine
- Nissan Xterra (2016): 2.5L QR25DE engine
- Nissan Murano (2016-2018): 2.5L QR25DE engine (specific trims)
- Nissan Pathfinder (2016-2017): 2.5L QR25DE engine (specific trims)
Direct bolt-on installation—no modification needed; matches original dimensions, gasket specifications, and mounting points. Designed for use with Nissan QR25DE 2.5L inline-4 engines. Sold as a complete assembly (includes valve cover and gasket).
5. Product Advantages
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OE-Spec Precision: 1:1 replication of Nissan's 13264-4JM0A dimensions, gasket material, and mounting specifications for perfect fit and function
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China Factory Direct: Competitive B2B wholesale pricing, eliminating middleman costs for bulk orders and maximizing profit margins for distributors
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12-Month Warranty: Rigorously tested for durability, heat resistance, and leak-proof performance; backed by warranty against manufacturing defects
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Premium Materials: Reinforced plastic body for strength and lightweight; high-quality silicone gasket for superior sealing and longevity vs. standard rubber alternatives
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Complete Assembly: Includes valve cover and pre-installed gasket for one-step installation, reducing additional part purchases
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Wide Compatibility: Replaces multiple OE numbers (13264-4JM0A, 13264-4JM0B, 13264-3KY0A, 13264-4JM0C) and aftermarket equivalents, simplifying inventory management
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Engine Protection: Effectively prevents oil leaks and contamination of valvetrain components, extending engine life and reducing maintenance costs
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Cost-Effective: Provides OE-quality performance at a fraction of the genuine Nissan part price, offering excellent value for repair shops and vehicle owners
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