Keep high-voltage spark reaching each cylinder in firing order with the Standard Ignition Distributor Rotor, part number GB-350. It is a direct-fit replacement for many vehicles, among them the 1987-1993 Mercedes-Benz 190E, 1986-1993 Mercedes-Benz 300E and 1988-1993 Mercedes-Benz 300TE. See the "Vehicles it fits" section for the full list and engine details.
The rotor turns with the distributor shaft. It carries current from the center terminal of the distributor cap to each outer terminal, which sends it on to the spark plugs.
- Quality control throughout: Standard Ignition is a global manufacturer of original equipment ignition products. It maintains quality control across the whole process, from componentry to the finished product.
- Dielectric-strength alkyd: The high-grade dielectric strength alkyd resists dirt sticking, which helps decrease carbon tracking for extended service life.
- Solid brass segments: These are designed for better conductivity and a higher-voltage spark to the plugs.
- Shaft retention clips: Standard Ignition rotors use shaft retention clips where the application requires them, for a secure fit.
Signs that a rotor may need replacing include misfires, rough running, hard starting, a burned or eroded tip, and carbon tracks on the rotor. If the rotor is the cause, GB-350 replaces it. The rotor and the distributor cap work together, so inspect the cap at the same time.
Interchange: D661 · 04186 · 1234332365 · RB975 · EP585 · 88922938 · 04217 · 1031580231 · 1031580331 · 1234332417
Product information is for general reference and may contain errors. See our Disclaimer.
This part cross-references / interchanges with the following part numbers:
D661, 04186, 1234332365, RB975, EP585, 88922938, 04217, 1031580231, 1031580331, 1234332417, GB-350
Frequently Asked Questions
What does a distributor rotor do?
It turns with the distributor shaft and carries high-voltage current from the cap's center terminal to each outer terminal. From there the current goes to the spark plugs in firing order.
Which vehicles does the GB-350 fit?
It fits many vehicles, among them the 1987-1993 Mercedes-Benz 190E, 1986-1993 Mercedes-Benz 300E and 1988-1993 Mercedes-Benz 300TE. See the "Vehicles it fits" section for the full list.
What are the rotor's segments made of?
Standard Ignition states that its distributor rotors have solid brass segments. They are designed for better conductivity and a higher-voltage spark to the plugs.
Why does carbon tracking matter?
Carbon tracks can give spark an unintended path. This rotor's high-grade dielectric strength alkyd resists dirt sticking, which helps decrease carbon tracking.
How do I know my rotor may need replacing?
Possible signs include misfires, rough running, hard starting, a burned or eroded tip, or visible carbon tracks. Diagnose the cause first, because other ignition parts can produce similar symptoms.
