Standard Ignition FH43 Circuit Breaker

Standard Ignition FH43 Circuit Breaker

Standard Ignition FH43 is a 12-volt circuit breaker with a rectangular female connector and blade terminals for direct electrical service replacement. It is built with 5 connector cavities, 5 terminals, and 5 fuse positions to match the original-style layout used in select Nissan and INFINITI applications.

Compatible With 2013-2023 Nissan and INFINITI models including Maxima, Murano, Pathfinder, Altima, QX60, and JX35. This part cross-references OE-style numbers such as 243803JA1A and FB6301 for the same application.

Key Features

• Part number: FH43
• 12-volt circuit breaker for automotive electrical systems
• Female rectangular connector design
• 5 connector cavities and 5 blade terminals
• 5 fuse positions in the housing
• Male blade terminal configuration
• Fits select Nissan Maxima, Murano, Pathfinder, Altima, and INFINITI QX60/JX35 applications

Detailed Description

Standard Ignition FH43 is an electrical circuit breaker used in vehicle body and lighting circuits where the original breaker assembly uses a rectangular connector and blade-style terminals. The FH43 matches the specified 12-volt electrical format and connector layout for direct replacement in select Nissan Maxima, Nissan Murano, Nissan Pathfinder, Nissan Altima, INFINITI QX60, and INFINITI JX35 applications. If you are searching for a Nissan Pathfinder circuit breaker, Nissan Murano electrical breaker, or INFINITI QX60 replacement breaker, FH43 is the correct OE-style reference to compare against the original unit.

What It Helps Resolve

• Intermittent loss of power to a protected circuit
• Repeated breaker trips in the affected electrical circuit
• Faulty body, lighting, or accessory circuit protection
• Replacement of a damaged or heat-affected breaker housing
• Restoring proper electrical protection in the original circuit layout

Installation Notes and Tips

• Verify connector shape, terminal count, and terminal style before installation.
• Confirm the vehicle uses a 12-volt breaker with the same rectangular female connector layout.
• Match the original part number and vehicle application before replacing the unit.
• Inspect the connector terminals and surrounding harness for corrosion, heat damage, or looseness before reconnecting.
• Fits 2016-2023 Nissan Maxima, N/A
• Fits 2015-2023 Nissan Murano, N/A
• Fits 2014-2020 INFINITI QX60, N/A
• Fits 2016-2020 Nissan Pathfinder, N/A
• Fits 2013 Nissan Pathfinder, N/A
• Fits 2013-2018 Nissan Altima, N/A
• Fits 2014-2015 Nissan Pathfinder, N/A, 5 Blade
• Fits 2013 INFINITI JX35, N/A

Quality Assurance

Standard Ignition supplies replacement electrical components for service applications, and FH43 is listed with OE-style interchange references for application matching. Confirm the original connector and terminal configuration against the vehicle before installation.