Atlantic Automotive Enterprises 5645N Power Steering Pump

New Hydraulic Power Steering Pump for Tacoma

Atlantic Automotive Enterprises New Power Steering Pump 5645N is an application-specific hydraulic replacement built for OE-style fit and operation. It is engineered for 2016-2023 Toyota Tacoma applications and arrives with the pulley preinstalled for a cleaner replacement process.

Each AAE New Power Steering Pump is inspected and 100% hydraulically tested under load in the USA before shipment. For long service life and proper steering performance, the steering system should be flushed and refilled with an OE-approved power steering fluid during service.

Key Features

• Pulley included and preinstalled
• 100% hydraulically tested under load in the USA
• Engineered to meet or exceed OE specifications for performance, fit, and function
• Application-specific design for Toyota Tacoma hydraulic power steering service
• Sold without a core charge

Detailed Product Overview

AAE New Power Steering Pump 5645N is part of the Atlantic Automotive Enterprises New Power Steering Pump line, a hydraulic pump program focused on OE-quality components and verified fitment. This part is built for Toyota Tacoma models and is listed for 2016-2021 Toyota Tacoma, w/Pulley, w/o Reservoir, w/Return Pipe, and 2022-2023 Toyota Tacoma, w/Pulley, w/o Reservoir, w/Return Pipe Adapter. It is a direct-fit hydraulic power steering pump for Tacoma owners replacing a worn or noisy pump while maintaining factory-style steering response.

This part cross-references 4431004200 for the same application.

Common Problems This Part Can Address

• Whining or groaning from the power steering pump
• Heavy or inconsistent steering effort
• Low hydraulic pressure in the steering system
• Leak-related pump replacement on Toyota Tacoma hydraulic steering systems
• Pump wear that affects steering assist and drivability

Installation Notes and Tips

Before installing this Toyota Tacoma power steering pump, inspect the steering fluid reservoir and replace it if contamination or restriction is present. A clogged reservoir can starve the replacement pump and shorten service life. Flush the steering system thoroughly and refill with an OE-approved power steering fluid to help protect the pump and maintain proper operation.

Verify the vehicle’s year and return-line configuration before installation. This part number 5645N is listed for Tacoma applications with pulley and without reservoir, and the fitment notes differ between 2016-2021 and 2022-2023 models.

Quality Assurance

AAE power steering pumps are manufactured with OE-quality components and undergo inspection and testing to confirm OE operation and fitment. Each unit is 100% tested in the USA under hydraulic load. Warranty coverage is 24 months or 24,000 miles.