Denso 951-0017 Electric Fuel Pump

Denso 951-0017 Electric Fuel Pump Overview

The Denso 951-0017 New Electric Fuel Pump is a specific-fit, 12-volt internal fuel pump for select Toyota applications. It is built for negative-ground systems and includes the mounting hardware needed for installation, making it a direct replacement option for fuel delivery service on the 2003-2004 Toyota Tundra and 2003-2004 Toyota Sequoia.

Key Features

• 12-volt electric fuel pump for internal tank mounting
• Negative ground electrical design
• Specific fit for select Toyota fuel system applications
• Single outlet configuration
• Mounting hardware included
• Inlet outside diameter: 11.000
• Cross-reference part number: Toyota 23221-0F010
• Part number: Denso 951-0017

Detailed Product Description

This Denso New Electric Fuel Pump is engineered as an internal replacement pump for select Toyota trucks and SUVs. It is specified for 12-volt, negative-ground systems and uses a single outlet layout. The pump is listed as a specific-fit component, which helps streamline replacement work on fuel delivery systems in the 2003-2004 Toyota Tundra and 2003-2004 Toyota Sequoia, including the 2003 Toyota Sequoia built outside Japan from 08/2002.

The Denso 951-0017 also cross-references Toyota 23221-0F010 for the same application. For buyers searching by vehicle, this fuel pump is a direct-match option for Toyota Tundra fuel pump replacement and Toyota Sequoia fuel pump service in the listed model years.

Vehicle Fitment

• Fits 2004 Toyota Sequoia, N/A
• Fits 2003-2004 Toyota Tundra, N/A
• Fits 2003 Toyota Sequoia, N/A (Exc. Japan Built, From 08/2002)

Common Problems This Part Can Address

• Hard starting caused by weak fuel pressure
• Engine stalling from inconsistent fuel delivery
• Loss of power under load from a failing in-tank pump
• No-start condition related to pump wear or electrical failure
• Fuel starvation symptoms during acceleration or towing

Installation Notes and Tips

Confirm the vehicle’s fuel system configuration before installation and verify the inlet and outlet layout against the original pump. Because this is an internal fuel pump, access typically requires removal of the fuel tank module or related assembly components. Check electrical connections, seals, and the tank opening condition during service, and reuse only components that are in serviceable condition.

Quality Assurance

Denso is an established OE supplier in automotive fuel system components, and this replacement pump follows the listed application and electrical specifications for the confirmed Toyota fitments. Use the part number 951-0017 to verify application details before ordering or installation.