Product Description
Distributor cap
Frequently Asked Questions
Q: Which forklift brands are compatible with the 3040378 distributor cap?
A: The 3040378 distributor cap fits gasoline-powered forklifts from Crown, Toyota, Raymond, and Yale. Verify the distributor bore size and terminal configuration before ordering.
Q: What does the 3040378 distributor cap do?
A: The cap contains rotor terminals and delivers high-voltage spark from the ignition coil to each spark plug wire in firing order. The rotor inside contacts each terminal as it rotates.
Q: What material is the 3040378 distributor cap made from?
A: The cap is injection-molded plastic with brass or steel terminals. The plastic resists moisture and heat, while terminals conduct high voltage without corrosion.
Q: How long does a 3040378 distributor cap last?
A: Caps last 3000 to 8000 operating hours. Failure accelerates in wet environments or cold storage where moisture enters terminal cavities and causes tracking or arcing.
Q: What symptoms indicate the 3040378 cap is failing?
A: Symptoms include misfiring, rough idle, white or green corrosion inside the cap, tracking marks on the inside surface, and spark plug wires arcing externally.
Q: What is the difference between a failed rotor and a failed 3040378 cap?
A: A failed rotor causes misfire on specific cylinders as contact degrades. A failed cap causes misfiring across all cylinders or intermittent spark loss. Both should be replaced if either shows damage.