Standard Ignition US-435 Ignition Switch

Brand Standard Ignition US-435
Attachment Method Bolt On
Connector Gender Female
Connector Shape Rectangular
Mounting Location Column
Terminal Gender Male
Terminal Type Blade
Fits Mercury and Ford · 10 vehicles

Bolt-on installation. Built for proper fit and function with a female rectangular connector.

Copper alloy conductors. Deliver superior electrical conductivity with low resistive losses.

100% tested. Verifies mechanical and electrical switching performance.

Cross-references 1S5937, 53-27331 and 89058220 for the same application. See all 9.

$214.77Free shipping
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Ignition Switch for Ford and Mercury Applications

Standard Ignition US-435 is a column-mounted ignition switch built for direct replacement service on select Ford and Mercury vehicles. It uses a bolt-on attachment, a rectangular female connector, and 7 male blade terminals to support proper electrical switching and reliable fitment.

Compatible With 1998-2000 Ford Contour, 1998-2000 Mercury Mystique, and 1999-2002 Mercury Cougar, this ignition switch is built for service professionals who need consistent mechanical action and stable electrical contact. The US-435 is also a practical search match for drivers looking for a Ford Contour ignition switch replacement or a Mercury Cougar ignition switch by part number.

Key Features

  • Standard Ignition US-435 ignition switch
  • Column mounting location with bolt-on attachment
  • 1 rectangular female connector
  • 7 male blade terminals
  • Copper alloy conductors for strong electrical conductivity and reduced resistance
  • 100% tested for mechanical and electrical switching performance
  • Built with high-grade materials for service replacement use

Detailed Description

This ignition switch is engineered to restore key-operated electrical switching at the steering column. Standard Ignition builds the US-435 with copper alloy conductors to support efficient current flow, while the switch body is constructed from durable materials to maintain fit and function during repeated use. The design is intended for vehicles that require a column-mounted, bolt-on ignition switch with a single rectangular connector and blade-style terminals.

For shoppers comparing ignition switch replacement options for a 1998-2000 Ford Contour or 1999-2002 Mercury Cougar, US-435 provides a direct-fit service part reference. This part cross-references F8RZ11572AA and CS808 for the same application.

Common Problems This Part Can Address

  • Intermittent no-start condition caused by worn ignition switch contacts
  • Accessory or ignition circuits that do not power on consistently
  • Key position issues at the steering column switch assembly
  • Electrical switching faults traced to internal switch wear
  • Replacement needs after connector or terminal damage

Installation Notes and Tips

Verify the connector shape, terminal count, and column mounting style before installation. Confirm vehicle application by year and model: Fits 1998-2000 Ford Contour, N/A; Fits 1998-2000 Mercury Mystique, N/A; Fits 1999-2002 Mercury Cougar, N/A. Inspect the harness connector and terminal condition during replacement to help ensure proper engagement and switching operation.

Quality Assurance

Standard Ignition states that this switch is fully tested for both mechanical and electrical performance. The use of copper alloy conductors and robust construction supports dependable service in demanding repair applications.

This part fits 10 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelPositionNotes
2002MercuryCougarN/A
2001MercuryCougarN/A
2000FordContourN/A
2000MercuryCougarN/A
2000MercuryMystiqueN/A
1999FordContourN/A
1999MercuryCougarN/A
1999MercuryMystiqueN/A
1998FordContourN/A
1998MercuryMystiqueN/A
Directly replaces or cross-references 9 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
1S593753-2733189058220CS808F8RZ11572AAKS6808LS1032SW5213UL7-28