Standard Ignition Distributor Rotor P/N:DR-157
Standard Motor Products
Help send high-voltage spark to each plug in turn with the Standard Ignition Distributor Rotor DR-313. It is a direct-fit replacement for the listed applications and fits many vehicles, among them the 1966-1969 Jeep CJ5 and 1966-1969 Jeep DJ5. See the "Vehicles it fits" section for the full list and engine details.
The rotor turns with the distributor shaft and carries voltage from the cap's center terminal to each outer terminal in firing order. Standard Ignition is a global manufacturer of original equipment ignition products and maintains complete quality control throughout manufacturing, from components to the finished product.
Signs a rotor may need replacing: misfires, hard starting, rough running, or a rotor tip that looks burned, worn or carbon-tracked on inspection. Diagnose the cause before replacing any part, because the cap, wires, plugs and other ignition components can produce the same symptoms.
Interchange: D146 · DR959 · RR185 · 12338685 · 1957684 · 1957684A · 380542
Product information is for general reference and may contain errors. See our Disclaimer.
This part cross-references / interchanges with the following part numbers:
What does a distributor rotor do?
It spins with the distributor shaft and passes high voltage from the cap's center terminal to each outer terminal, routing spark to the plugs in firing order.
What vehicles does the Standard Ignition DR-313 fit?
Listed applications include the 1966-1969 Jeep CJ5 and 1966-1969 Jeep DJ5, plus many other vehicles. See the "Vehicles it fits" section for the full list.
Which part numbers does DR-313 interchange with?
It cross-references to D146, DR959, RR185, 12338685, 1957684, 1957684A and 380542.
What are the rotor's conducting segments made of?
Standard Ignition's distributor rotors use solid brass segments, which are designed for better conductivity and a higher-voltage spark to the plugs.
How do I know my rotor may need replacing?
Possible signs include misfires, hard starting, rough running, or a burned or carbon-tracked tip. Check the cap, wires and plugs as well, because they can cause the same symptoms.
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WARNING: These products can expose you to chemicals including lead and phthalates, which are 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.