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Standard Ignition HN43 HornOE Quality 60-Day Returns
Part #: HN43

Standard Ignition HN43 Horn

7 vehicles fit this part
Select your vehicle to confirm fitment
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OE Direct Replacement — Bolt-on fit, no modifications needed
Fitment: INFINITI, Q70L, M37, and M56
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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.

BrandStandard Ignition
Part NumberHN43
Hardware IncludedNo
Mounting Bracket(s) IncludedYes
Terminal GenderMale
Terminal TypeBlade
Voltage12

This part fits 7 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
2017INFINITIQ70LN/A
2016INFINITIQ70LN/A
2013INFINITIM373.7LV6N/A
2012INFINITIM373.7LV6N/A
2012INFINITIM565.6LV8N/A
2011INFINITIM373.7LV6N/A
2011INFINITIM565.6LV8N/A

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

This part directly replaces or is cross-referenced with the following part numbers:

25610JK000H43

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.