Nissens 91435 Engine Oil Cooler

Nissens 91435 Engine Oil Cooler

The Nissens 91435 engine oil cooler is an OEM equivalent aluminum heat exchanger built to maintain proper oil temperature for stable lubrication and dependable component operation. It is a direct-fit option for select Nissan Frontier, NV1500, NV2500, NV3500, and Xterra applications, including Frontier models without housing.

Key Features

• Aluminum construction for efficient heat transfer and corrosion resistance
• OEM equivalent grade for factory-style fit and function
• Core dimensions: 6.14 in. length, 3.94 in. width, 2.01 in. thickness
• Supports consistent oil cooling to help protect lubricated engine components
• Built by Nissens with in-house testing to meet quality standards

Product Details

Part number 91435 is an engine oil cooler designed to regulate oil temperature in vehicles that rely on controlled lubrication performance. By removing excess heat from the oil circuit, this Nissens oil cooler helps maintain oil viscosity and supports reliable operation under everyday driving and demanding conditions. It is a practical replacement for Nissan Frontier, NV1500, NV2500, NV3500, and Xterra models listed below, with Frontier coverage spanning 2014-2026 and specific 2025-2026 applications.

This part cross-references Nissan OE numbers 21305EA21A and 21305EA21B for the same application.

What It Helps Address

• High engine oil temperatures during stop-and-go driving
• Oil breakdown caused by excess heat
• Reduced lubrication stability in hot operating conditions
• Cooling-system service needs on Nissan Frontier and related models
• Replacement of a worn or inefficient factory oil cooler

Installation Notes

• Fits 2025-2026 Nissan Frontier, N/A
• Fits 2014-2024 Nissan Frontier, N/A, WITHOUT HOUSING
• Fits 2014-2021 Nissan NV1500, N/A, WITHOUT HOUSING
• Fits 2014-2021 Nissan NV2500, N/A, WITHOUT HOUSING
• Fits 2014-2021 Nissan NV3500, N/A, WITHOUT HOUSING
• Fits 2014-2015 Nissan Xterra, N/A, WITHOUT HOUSING

Verify the vehicle’s existing cooler configuration before ordering, especially on applications noted as without housing. Confirm part number 91435 against the original unit and inspect sealing surfaces, coolant and oil passages, and mounting points during installation.

Quality Assurance

Nissens uses advanced in-house testing facilities to verify product performance and support long service life. The 91435 oil cooler is built to meet OEM equivalent expectations for fit, cooling efficiency, and dependable operation.