Standard Ignition HN43 Horn

Brand Standard Ignition HN43
Hardware Included No
Mounting Bracket(s) Included Yes
Terminal Gender Male
Terminal Type Blade
Voltage 12
Fits INFINITI · 7 vehicles

12-volt operation. Built for standard automotive electrical systems.

Blade terminals. Uses a two-terminal blade connection for straightforward wiring.

Mounting brackets included. Ready for installation with brackets supplied.

Cross-references Standard Ignition HN43, 25610JK000 and H43 for the same application. See all 3.

$146.23Free shipping
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Free returns within 60 days if it doesn't fit when fitment is verified.

Horn Replacement for Infiniti Applications

Restore a clear, reliable warning signal with this Standard Ignition horn, part number HN43. It is a 12-volt horn assembly with a male blade terminal design, two terminals, and an included mounting bracket for direct replacement service on select Infiniti models.

Key Features

  • 12-volt horn assembly for automotive electrical systems
  • Male blade terminals with 2-terminal connection
  • Mounting bracket(s) included for installation support
  • Standard Ignition HN43 replacement horn
  • Direct-fit service part for select Infiniti vehicles

Detailed Description

Standard Ignition HN43 is a replacement horn built for select 2011-2013 Infiniti M37, 2011-2012 Infiniti M56, and 2016-2017 Infiniti Q70L applications. This horn uses a male blade terminal layout and 12-volt electrical specification, making it a practical OE-style service part for restoring factory horn function. If you are replacing a failed horn on an Infiniti M37, Infiniti M56, or Infiniti Q70L, HN43 provides the correct fitment details for those model years. This part cross-references OE-style part numbers 25610JK000 and H43 for the same application.

What This Horn Helps Address

  • No horn sound when the steering wheel switch is pressed
  • Weak, intermittent, or distorted horn output
  • Corrosion or electrical failure at the horn assembly
  • Replacement after impact damage or weather exposure
  • Restoration of factory warning signal operation

Installation Notes and Tips

Verify the vehicle uses a 12-volt horn with male blade terminals before installation. Confirm the mounting location and bracket alignment match the original horn assembly on the vehicle. Inspect the connector, fuse, relay, and wiring condition during replacement to avoid repeat failures. Fits 2011-2013 Infiniti M37, N/A; Fits 2011-2012 Infiniti M56, N/A; Fits 2016-2017 Infiniti Q70L, N/A.

Quality Assurance

Standard Ignition replacement parts are built for service applications where correct electrical connection and fitment matter. Use the listed vehicle coverage and part number HN43 to confirm application before installation.

This part fits 7 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelLitersCylindersPositionNotes
2017INFINITIQ70LN/A
2016INFINITIQ70LN/A
2013INFINITIM373.7LV6N/A
2012INFINITIM373.7LV6N/A
2012INFINITIM565.6LV8N/A
2011INFINITIM373.7LV6N/A
2011INFINITIM565.6LV8N/A
Directly replaces or cross-references 3 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
Standard Ignition — HN4325610JK000H43