Bosch 0250201032 Heater Coolant Heater Glow Plug

Bosch Diesel Glow Plug 0250201032

Bosch Diesel Glow Plug 0250201032 is a threaded glow plug for diesel coolant-heater and engine preheating applications. It uses Bosch Duraterm dual-control coil technology to shorten glow time and support faster cold starts in Volkswagen, Audi, and Volvo diesel vehicles.

Key Features

• Duraterm dual-control coil design for self-regulating heat output
• Fast/Quick Start performance with a 4.0 second pre-heating time
• Inconel material for high-temperature durability
• Threaded terminal type with tapered seat
• 12 mm thread diameter and 12 mm hex size
• Metal sheath construction
• Overall length: 2.322835 in; reach: 21.0 mm

Product Details

Part number 0250201032 is built around Bosch diesel glow plug engineering and the Duraterm dual-coil concept, which manages current flow to bring the element up to temperature quickly. That faster heat-up supports more efficient diesel combustion during cold starts and post-glow operation. This Bosch Diesel Glow Plug line is aimed at diesel engines that rely on precise pre-heating, including Volkswagen Golf, Volkswagen Jetta, Volkswagen EuroVan, Volkswagen Passat, Volkswagen Quantum, Volkswagen Vanagon, Volvo 760, Audi 4000, and Volkswagen Rabbit Pickup applications.

This part cross-references OE-style numbers N0191006 and N10213001 for the same application.

What It Helps Address

• Hard starting in cold weather on diesel engines
• Extended crank time before the engine fires
• Uneven pre-heating in glow plug circuits
• Reduced combustion stability during warm-up
• Glow plug replacement on older Volkswagen, Audi, and Volvo diesel models

Installation Notes and Tips

Verify thread diameter, seat type, terminal style, and reach before installation. This Bosch 0250201032 glow plug uses a threaded terminal and tapered seat, so matching the cylinder head specification is important. Confirm vehicle application by year, make, and model before service, especially on Volkswagen Golf, Jetta, and Passat diesel engines.

Quality Assurance

Bosch is a long-established diesel fuel-injection and ignition component manufacturer, and this glow plug reflects that engineering background with a self-regulating dual-coil design and Inconel construction for demanding diesel service.

Compatible Vehicles

• Fits 1985-1998 Volkswagen Golf, Diesel Glow Plug
• Fits 1997-1998 Volkswagen Jetta, Diesel Glow Plug
• Fits 1981-1994 Volkswagen Jetta, Diesel Glow Plug
• Fits 1993-1997 Volkswagen EuroVan, Diesel Glow Plug
• Fits 1993-1995 Volkswagen Passat, Diesel Glow Plug
• Fits 1986 Volkswagen Jetta, Coolant Heater Glow Plug
• Fits 1982-1985 Volkswagen Quantum, Diesel Glow Plug
• Fits 1985 Volkswagen Quantum, Coolant Heater Glow Plug
• Fits 1982-1984 Volkswagen Vanagon, Diesel Glow Plug
• Fits 1983-1984 Volvo 760, Diesel Glow Plug
• Fits 1982-1983 Audi 4000, Diesel Glow Plug
• Fits 1981-1983 Volkswagen Rabbit Pickup, Diesel Glow Plug