NGK 5044 Spark Plug

NGK Iridium IX Spark Plug 5044 Overview

NGK Iridium IX Spark Plug 5044 is built for precise ignition performance in select Lamborghini and Porsche applications. It combines an iridium center electrode with a nickel ground electrode and a 0.032 pre-gap size for consistent spark delivery in performance-focused engines.

The NGK Iridium IX Spark Plug line is known for OE-style engineering backed by NGK’s long history as a major original equipment supplier. Part number 5044 is a direct-fit spark plug option for drivers servicing classic performance vehicles such as the Lamborghini Jalpa, Lamborghini Countach, and Porsche 911.

Key Features

• Iridium center electrode tip material for stable ignition performance
• Copper center electrode core material for efficient heat transfer
• Nickel ground electrode core material with standard ground configuration
• Taper cut ground electrode tip design for focused spark exposure
• 5000 ohm resistance for ignition system compatibility
• Pre-gapped at 0.032 inches
• 14 mm thread diameter, 0.75 inch reach, flat seat design
• 13/16 hex size with removable nut terminal
• Manufacturer heat range 8

Detailed Description

NGK 5044 is an Iridium IX spark plug engineered for select high-performance and classic European engines that call for a 14 mm, flat-seat plug with a 0.75 inch reach. The iridium tip supports consistent spark concentration, while the copper core helps manage heat transfer through the plug body. This combination is suited to engines that benefit from reliable ignition response and stable combustion characteristics.

Fitment includes 1982-1988 Lamborghini Jalpa, 1982-1985 Lamborghini Countach, 1970-1971 Porsche 911, and 1968 Porsche 911. This part cross-references DENSO Auto Parts (e.g., 5044, 5316) for the same application. The NGK Iridium IX Spark Plug 5044 is a practical service choice when replacing worn plugs in these vehicles and maintaining OE-style specifications matters.

What This Spark Plug Helps Address

• Misfires caused by worn or eroded spark plug electrodes
• Hard starting from weak or inconsistent ignition output
• Rough idle related to degraded plug performance
• Incomplete combustion that can affect throttle response
• Service replacement needs for classic Lamborghini and Porsche ignition systems

Installation Notes and Tips

Verify the required thread diameter, reach, seat type, and heat range before installation. Confirm the specified gap for your application; listed fitment notes include 0.020 inch for Lamborghini Jalpa and Countach applications and 0.024 inch for Porsche 911 applications. Use proper spark plug service procedures and torque to the vehicle manufacturer’s specification.

Quality Assurance

NGK manufactures spark plugs for a wide range of domestic and import vehicles and supports OE-level standards through its North American and global production and distribution network. Part number 5044 reflects NGK’s focus on durability, consistent ignition performance, and application-specific fitment.