Bosch 0221122001 Ignition Coil

Bosch Ignition Coil for OE-Style Performance

The Bosch Ignition Coil (New), part number 0221122001, is built for vehicles that need stable ignition voltage and consistent spark output. It is a direct-fit ignition coil for select classic European applications, including Porsche 928, BMW 528i, Mercedes-Benz 380SEL, Volvo 760, and Maserati Quattroporte.

As part of Bosch’s Ignition Coil (New) line, this coil focuses on OE-style electrical performance, helping maintain proper engine operation, fuel efficiency, and exhaust control in older ignition systems.

Key Features

• Voltage rating: 14V
• OE-style ignition coil construction from Bosch
• DIN terminal type for the listed applications
• Designed for consistent spark delivery and ignition voltage
• Part number 0221122001 for accurate ordering and lookup

Detailed Product Overview

Bosch 0221122001 is an ignition coil for select 1978-1986 European vehicles that require a reliable replacement ignition component. It supports proper spark generation, which is important for smooth combustion, stable idle quality, and dependable starting performance. This ignition coil is listed for Porsche 928, BMW 528i, Mercedes-Benz 380SEL, Volvo 760, and Maserati Quattroporte applications across the model years shown in the fitment data.

This part cross-references Bosch-style OE numbers such as 0001582803 and 12131363629 for the same application. If you are searching for a Bosch ignition coil 0221122001 for a Porsche 928 or BMW 528i, this listing provides the fitment details needed for a confident match.

What This Ignition Coil Helps Address

• Weak or inconsistent spark output
• Hard starting caused by ignition coil wear
• Rough idle or misfire symptoms tied to ignition performance
• Reduced engine efficiency from unstable ignition voltage
• Exhaust emissions concerns related to incomplete combustion

Installation Notes and Tips

Verify the terminal style, voltage requirement, and vehicle application before installation. This ignition coil uses a DIN terminal type and is listed for the specific model years shown in the fitment table. Confirm the existing coil configuration on your Porsche 928, Mercedes-Benz 380SEL, BMW 528i, Volvo 760, or Maserati Quattroporte before replacing the part.

• Fits 1978-1984 Porsche 928, N/A
• Fits 1979-1981 BMW 528i, N/A
• Fits 1981 Mercedes-Benz 380SEL, N/A
• Fits 1982 Mercedes-Benz 380SEL, N/A; To 12/1981
• Fits 1983-1986 Volvo 760, N/A
• Fits 1979 Maserati Quattroporte, N/A; From 01/1979
• Fits 1980-1986 Maserati Quattroporte, N/A

Quality Assurance

Bosch ignition components are built to OE-level specifications for the listed applications, with attention to correct ignition voltage and durable spark performance. Part number 0221122001 is identified for accurate fitment verification and replacement selection.