Genuine Bosch 009 Ignition Rotor | Air-Cooled VW & Porsche | Resistor 5k Ohm (98-9821-B)

Genuine Bosch 009 Ignition Rotor (04-004) — Resistor Type

Ensure precise timing and a strong spark with this Genuine Bosch 04-004 Ignition Rotor, designed specifically for the Bosch 009 Centrifugal Advance Distributor used in air-cooled Volkswagen and early Porsche ignition systems.

Vehicle Fitment

• VW Beetle & Super Beetle: equipped with the Bosch 009
• VW Bus / Transporter: equipped with the Bosch 009
• VW Karmann Ghia & Type 3: equipped with the Bosch 009
• Porsche 356 & 912: equipped with the Bosch 009

Key Features & Benefits

• Correct Fitment: Engineered for Bosch 009 and 050 distributors.
• High-Dielectric Construction: Resists voltage leaks and carbon tracking.
• Resistor Design: 5k Ohm resistor-style rotor matches factory ignition requirements and reduces RFI interference.

Technical Specifications

• Brand: Bosch (Genuine)
• Fits: Bosch 009 Distributors (and 050)
• Resistance: 5k Ohm (resistor style)
• Bosch Reference: 04-004 (also fits 04 033 applications)
• Part Number: 98-9821-B

Frequently Asked Questions

• Which distributors does this rotor fit? The Bosch 009 and 050 distributors.
• Is this a resistor rotor? Yes — it is a 5k Ohm resistor-style rotor that reduces RFI interference.

Explore Related Categories

Ignition, All VW Air-Cooled, All Porsche

⚠ WARNING (California Proposition 65): This product can expose you to chemicals including lead, which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.p65warnings.ca.gov. Parts are legal for use on pre-pollution-controlled vehicles only.