Product Description
Rotor
Frequently Asked Questions
Q: What rotor diameter does the 5913369981 have?
A: The 5913369981 rotor has a 1.75 inch diameter with four contact points designed for four-cylinder forklift engines. The rotor shaft couples to your distributor using a standard 0.250 inch keyed bore.
Q: Is the 5913369981 rotor compatible with the 5913365881 distributor cap?
A: Yes. The 5913369981 rotor is designed as a matched pair with the 5913365881 cap. Both components share the same contact geometry and terminal spacing for proper ignition timing in Toyota, Hyster, and Yale forklift engines.
Q: What material is the 5913369981 rotor made from?
A: The 5913369981 rotor is constructed from phenolic resin with a spring-loaded carbon brush contact. This material resists electrical arcing and heat degradation under high-RPM industrial engine operation.
Q: What are symptoms of a worn 5913369981 rotor?
A: Worn rotor symptoms include black carbon deposits visible inside the distributor cap, misfires at idle or under load, weak spark, and engine hesitation. Visually inspect the rotor contact points for pitting or heavy wear before replacement.
Q: How long does the 5913369981 rotor typically last?
A: The rotor lasts 500 to 1500 operating hours depending on engine condition and ignition system maintenance. Worn distributor points or excessive spark plug gap accelerates rotor erosion and reduces service life significantly.