Bosch 1235522059 Distributor Cap - 03013 4-Cylinder

The Bosch 1235522059 (also known as 03013) is a precision-engineered distributor cap designed for 4-cylinder European ignition systems. This genuine Bosch component provides reliable high-voltage distribution from the ignition coil through the distributor rotor to the spark plug wires, ensuring optimal engine performance and smooth operation.

Key Features:

• Constructed from glass fiber reinforced polyester for superior durability
• Engineered to withstand extreme electrical demands up to 30,000 volts
• High tracking resistance to prevent voltage leakage and misfires
• Precision-molded internal contacts for consistent spark delivery
• Meets or exceeds original equipment manufacturer specifications
• Black cap design without terminal bolt cutout (for 031 and 061 style aluminum distributors)

This distributor cap is commonly used on vintage Volvo B16, B18, and B20 engines (1958-1973), as well as Porsche 912, BMW, Mercedes-Benz, Audi, and VW models equipped with Bosch mechanical advance distributors. Cross-references include Volvo 870690, Mercedes-Benz A0001582402, and various OEM part numbers. Bosch distributor caps are designed to resist the heat and aggressive nitrogen oxides generated during spark discharge, ensuring long service life and reliable ignition performance.

OEM Cross-References: Volvo 870690, Mercedes-Benz A0001582402, VW 111905207B, Porsche 61660221500, and others.