NGK 48940 Ignition Coil

NGK COP Ignition Coil 48940 Overview

NGK 48940 is a coil-on-plug ignition coil built for distributorless ignition systems. It is engineered to meet or exceed OE standards for durability and consistent spark delivery, making it a direct replacement choice for late-model Nissan and INFINITI applications.

This NGK COP Ignition Coil line combines OE-focused design with testing performed in an ISO 17025 accredited lab. For drivers searching for an ignition coil for Nissan Armada, Nissan TITAN, Nissan Pathfinder, or INFINITI QX56, part number 48940 provides a fitment-specific solution backed by NGK’s long history in ignition components.

Key Features

• Brand: NGK
• Part number: 48940
• Coil type: COP (Coil on Plug)
• Ignition type: Distributorless
• Voltage: 12V
• Terminal type: Blade
• Terminal quantity: 3
• Connector gender: Female
• Terminal gender: Male
• Oil filled: No
• Mounting bracket included: No

Product Details

The NGK COP Ignition Coil 48940 is built for direct ignition systems that place the coil at the spark plug. That layout helps maintain consistent ignition performance in vehicles that rely on individual coil control, including 2007-2015 Nissan Armada, 2007-2015 Nissan TITAN, 2008-2012 Nissan Pathfinder, 2007-2010 INFINITI QX56, and 2012-2016 Nissan NV2500 and NV3500. If you are replacing a worn ignition coil on a Nissan Armada or Nissan TITAN, this part number 48940 is a fitment-matched option for the listed applications.

This part cross-references Delphi GN10247 and Standard Ignition UF-551 for the same application.

Common Problems This Part Can Address

• Engine misfire under load
• Rough idle or uneven acceleration
• Hard starting caused by weak spark output
• Check engine light related to ignition coil performance
• Loss of power from inconsistent cylinder ignition

Installation Notes and Tips

Verify the connector style, terminal count, and engine application before installation. This coil uses a 3-terminal blade connection with a female connector and male terminals, so matching the original electrical interface is important. Inspect the spark plug, boot condition, and related ignition components during replacement to help prevent repeat failures. Confirm vehicle coverage by year, make, and model before ordering part number 48940.

Quality Assurance

NGK manufactures ignition coils to OE-level standards and validates designs in an ISO 17025 accredited test lab under demanding conditions. The brand’s broad late-model domestic and import coverage, including Nissan and INFINITI applications, supports confident replacement selection for part number 48940.