Standard Ignition US-341L Ignition Lock Cylinder

Ignition Lock Cylinder for Ford and Mercury Applications

The Standard Ignition US-341L ignition lock cylinder is a coded replacement built for column-mounted applications on select Ford, Lincoln, and Mercury vehicles. It is matched to original equipment dimensions for precise installation and uses brass tumblers, chrome plated brass keys, and a die-cast zinc lock core for consistent operation.

Compatible With Ford F-150, Ford Explorer, Ford E-Series vans, Ford F-250 Super Duty, Ford F-350 Super Duty, Ford Taurus, Ford Freestyle, Ford Five Hundred, Mercury Mountaineer, Mercury Sable, Mercury Montego, Lincoln Aviator, and Lincoln Navigator applications listed below.

• Coded ignition lock cylinder for column mounting
• Precision-matched to original equipment dimensions
• Solid brass tumblers and chrome plated brass keys
• Die-cast zinc lock core construction
• Includes keys and instructions
• Standard Ignition US-341L cross-references Dorman OE Solutions 989-712 for the same application

Detailed Product Overview

Standard Ignition US-341L is engineered for technicians replacing worn or failed ignition lock cylinders on Ford F-150, Ford Explorer, Ford E-150, Ford E-250, Ford E-350 Super Duty, Ford F-250 Super Duty, Ford F-350 Super Duty, and related vehicles. The coded design supports a direct replacement approach, while the original-style construction helps maintain proper key feel and lock operation. This part number, US-341L, is built around the needs of ignition repair where the original cylinder has become difficult to turn, inconsistent, or no longer matches the vehicle key code.

Fitment

• Fits 2011-2016 Ford F-350, N/A
• Fits 2008-2009 Ford F-350, N/A
• Fits 2010-2014 Ford Econoline Van, N/A
• Fits 2008-2010 Ford E-150, N/A, Fits with Transponder Key
• Fits 2008-2010 Ford E-250, N/A, Fits with Transponder Key
• Fits 2008-2010 Ford E-350 Super Duty, N/A, Fits with Transponder Key
• Fits 2006-2010 Ford Explorer, N/A, Fits with Transponder Key
• Fits 2005-2010 Ford F-150, N/A, Fits with Transponder Key
• Fits 2008-2010 Ford F-250 Super Duty, N/A, Fits with Transponder Key
• Fits 2008-2010 Ford F-350 Super Duty, N/A, Fits with Transponder Key
• Fits 2008-2010 Ford Taurus, N/A
• Fits 2008-2009 Ford F-250, N/A
• Fits 2008-2009 Ford Taurus X, N/A
• Fits 2008-2009 Mercury Sable, N/A
• Fits 2006-2007 Ford Five Hundred, N/A, Fits with Transponder Key
• Fits 2005-2007 Ford Freestyle, N/A, Fits with Transponder Key
• Fits 2006-2007 Mercury Montego, N/A, Fits with Transponder Key
• Fits 2002-2007 Mercury Mountaineer, N/A, w/ Transponder Key; Must Use Scan Tool With Anti-Theft Security Access for Installation.
• Fits 2003-2005 Lincoln Aviator, N/A, Fits with Transponder Key
• Fits 2003-2004 Lincoln Navigator, N/A
• Fits 2002-2003 Ford Explorer, N/A

Common Problems This Part Can Address

• Key will not turn smoothly in the ignition
• Worn lock cylinder causing intermittent starting issues
• Broken or sticking ignition cylinder components
• Mismatch between the ignition lock and vehicle key code
• Replacement need after ignition cylinder wear or failure

Installation Notes and Tips

US-341L mounts in the column location and includes instructions for installation. Some applications listed with transponder keys require security access and scan tool procedures during setup, including the 2002-2007 Mercury Mountaineer note. Verify the vehicle year, make, model, and transponder-key requirement before installation to ensure the correct ignition lock cylinder is selected.

Quality Assurance

Standard Ignition builds this ignition lock cylinder with solid brass tumblers, chrome plated brass keys, and a die-cast zinc core to support reliable operation and consistent fit. The design reflects long-term development focused on technician needs and original-equipment-style repair for ignition lock failure.