Genuine Bosch 009 Ignition Rotor - 04-004 / 98-9821-B | Air-Cooled VW & Porsche

Optimized Product Description

Ensure precise timing and a strong spark with this Genuine Bosch 04-004 Ignition Rotor. Designed specifically for the iconic Bosch 009 Centrifugal Advance Distributor, this rotor is the gold standard for air-cooled Volkswagen and early Porsche ignition systems.

Key Features:

• Perfect Fitment: Specifically engineered for Bosch 009 and 050 distributors.

• High-Quality Construction: Built with high-dielectric materials to prevent voltage leaks and carbon tracking.

• Reliable Performance: Resistor-style design (5k Ohm) to match factory ignition requirements and reduce RFI interference.

Fitment Applications: Commonly used in 12V conversions and performance builds for:

• VW Beetle & Super Beetle (equipped with 009)

• VW Bus / Transporter

• VW Karmann Ghia & Type 3

• Porsche 356 & 912

Technical Specifications:

• Brand: Bosch

• Bosch Ref: 04-004 (also fits 04 033 applications)

• Part Number: 98-9821-B

• Compatibility: Bosch 009 Distributors

Installation Tip: Always check for shaft play in your distributor when replacing the rotor to ensure even wear and consistent timing.