NGK 1229 Diesel Glow Plug

NGK 1229 Glow Plug Overview

NGK Glow Plug 1229 is a diesel glow plug built to OE-equivalent design standards for reliable cold-start performance. It is specified with a 12V system voltage, 10.50V operating voltage, M4 threaded terminal, tapered seat, and a 12 mm hex for applications that require this configuration.

Compatible With Ford Escort, Ford Tempo, Mercury Topaz, Mazda 626, and Mazda B2200 diesel applications listed below, NGK 1229 supports accurate replacement selection for vehicles that need the correct glow plug dimensions and terminal style. This part cross-references Dayco 80015 and Dorman - HELP 80020 for the same application.

Key Features

• Diesel glow plug with OE-equivalent design
• 12V system voltage and 10.50V operating voltage
• M4 threaded terminal type
• Tapered seat for proper cylinder head interface
• 12 mm hex size for service access
• Metal-type construction
• NGK part number 1229, also identified as Y-107R

Product Details

NGK Glow Plug 1229 is part of NGK’s glow plug line, backed by the company’s long-standing OE supply experience and focus on original equipment standards. The design emphasizes durability, consistent electrical performance, and fitment accuracy for diesel engines that rely on a properly matched glow plug for dependable starting and combustion support. For buyers searching for an NGK 1229 glow plug or Y-107R replacement, this part provides a direct reference point for service and catalog matching.

Fits 1984-1987 Ford Escort, N/A. Fits 1984-1986 Ford Tempo, N/A. Fits 1984-1986 Mercury Topaz, N/A. Fits 1984-1985 Mazda 626, N/A. Fits 1982-1984 Mazda B2200, N/A.

Common Uses

• Hard starting in cold weather on diesel engines
• Extended crank time before engine fires
• Glow plug replacement during diesel tune-up service
• Restoring proper preheat function after glow plug failure
• Replacing a worn or incorrect OE-style glow plug

Installation Notes

Verify the terminal thread size, seat type, voltage rating, and overall length before installation. Match the glow plug to the engine application exactly, and inspect the cylinder head threads and electrical connection points for wear or contamination before fitting NGK 1229. Use the vehicle service information for torque and diagnostic procedures.

Quality Assurance

NGK is a major OE supplier in North America with extensive automotive manufacturing experience. The brand’s glow plug line is built to support original equipment standards for durability and operational performance in diesel applications.