Part #: FH45

Standard Ignition FH45 Circuit Breaker

⚙️ 55 vehicles fit this part
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Select your vehicle to confirm fitment
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OE Direct Replacement — Bolt-on fit, no modifications needed
🚗Fitment: INFINITI and Nissan, Armada, Frontier, Pathfinder, QX56, QX80, and Xterra
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Reliable Circuit Breaker for Nissan and Infiniti Vehicles

The Standard Ignition FH45 circuit breaker is designed to provide dependable electrical protection for select Nissan and Infiniti models. Engineered with a 12-volt rating and multiple connectors, this circuit breaker ensures consistent performance in your vehicle's electrical system.

  • Compatible with Nissan Armada, Frontier, Pathfinder, Xterra and Infiniti QX56, QX80 models
  • 12-volt circuit breaker with four blade-type female terminals
  • Rectangular connector shape with four connectors for secure connections
  • Includes mounting bracket(s) for stable installation
  • Equipped with four fuses to protect multiple circuits

Product Features and Specifications

The FH45 circuit breaker from Standard Ignition features a female gender connector type with four blade terminals, each designed for reliable electrical contact. The rectangular connector shape facilitates easy integration into the vehicle’s wiring harness. This 12-volt circuit breaker includes four fuses, allowing it to safeguard multiple electrical circuits simultaneously. The included mounting bracket(s) help ensure the unit remains securely fixed within the engine compartment or fuse box area.

Applications and Common Use Cases

  • Protects electrical circuits in Nissan Armada and Frontier models
  • Prevents electrical overloads in Infiniti QX56 and QX80 vehicles
  • Replaces faulty or worn circuit breakers in Nissan Pathfinder and Xterra
  • Maintains stable electrical flow to lighting and body systems
  • Helps avoid electrical shorts and potential component damage

Installation Notes and Tips

When installing the Standard Ignition FH45 circuit breaker, ensure the vehicle’s battery is disconnected to prevent electrical shock. Verify the connector orientation matches the rectangular female connectors on your vehicle’s wiring harness. Use the included mounting bracket(s) to secure the circuit breaker firmly in place, avoiding any movement that could cause loose connections. Confirm all four blade terminals are properly seated to maintain optimal electrical contact.

Quality Assurance and Warranty Information

Standard Ignition parts are manufactured to meet or exceed OEM specifications for fit, form, and function. The FH45 circuit breaker undergoes rigorous testing to ensure durability and reliable performance in Nissan and Infiniti vehicles. While specific warranty details may vary, Standard Ignition typically offers coverage against defects in materials and workmanship to provide confidence in your purchase.

BrandStandard Ignition
Part NumberFH45
GenderFemale
Connector Quantity4
Connector ShapeRectangular
Mounting Bracket(s) IncludedYes
Number of Fuses4
Terminal GenderFemale
Terminal Quantity4
Terminal TypeBlade
Voltage12

This part fits 55 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
2023NissanArmadaN/A
2022NissanArmadaN/A
2021NissanArmadaN/A
2021NissanFrontierN/A
2020INFINITIQX80N/A
2020NissanArmadaN/A
2020NissanFrontierN/A
2019INFINITIQX80N/A
2019NissanArmadaN/A
2019NissanFrontierN/A
2018INFINITIQX80N/A
2018NissanArmada5.6LV8N/A
2018NissanFrontierN/A
2017INFINITIQX80N/A
2017NissanArmada5.6LV8N/A
2017NissanFrontierN/A
2016INFINITIQX80N/A
2016NissanFrontierN/A
2015INFINITIQX80N/A
2015NissanFrontierN/A
2015NissanPathfinderN/A4 Blade Term.
2015NissanXterra4.0LV6N/A
2014INFINITIQX80N/A
2014NissanFrontierN/A
2014NissanPathfinderN/A4 Blade Term.
2014NissanXterra4.0LV6N/A
2013INFINITIQX56N/A
2013NissanFrontierN/A
2013NissanXterra4.0LV6N/A
2012INFINITIQX56N/A
2012NissanFrontierN/A
2012NissanPathfinderN/A
2012NissanXterra4.0LV6N/A
2011INFINITIQX56N/A
2011NissanFrontierN/A
2011NissanPathfinderN/A
2011NissanXterra4.0LV6N/A
2010NissanFrontierN/A
2010NissanPathfinderN/A
2010NissanXterra4.0LV6N/A
2009NissanFrontierN/A
2009NissanPathfinderN/A
2009NissanXterra4.0LV6N/A
2008NissanFrontierN/A
2008NissanPathfinderN/A
2008NissanXterra4.0LV6N/A
2007NissanFrontierN/A
2007NissanPathfinderN/A
2007NissanXterra4.0LV6N/A
2006NissanFrontierN/A
2006NissanPathfinderN/A
2006NissanXterra4.0LV6N/A
2005NissanFrontierN/A
2005NissanPathfinderN/A
2005NissanXterra4.0LV6N/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:

2438089914FB6303FH154FH45

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