Standard Ignition Ignition Switch P/N:US-657
Turn the key with confidence using the Standard Ignition Ignition Switch US-400 (also written US400), a direct-fit replacement for the 1988-1991 Mazda 929. This ignition starter switch carries the electrical circuits that power up the vehicle and engage the starter when you turn the key, so a worn or failing original that causes intermittent starting, dead accessory circuits, or a no-crank condition can be swapped out cleanly.
If a failed ignition switch is the cause of your starting or accessory-power trouble, this unit replaces it. See the Buyer's Guide tab for the full engine-level fitment for your 929.
Interchange: CS783 · LS842 · KS6783 · HF0566151
This part cross-references / interchanges with the following part numbers:
What vehicle does this ignition switch fit?
It is a direct-fit replacement for the 1988-1991 Mazda 929. Check the Buyer's Guide tab to confirm the exact engine-level fitment for your vehicle.
What does an ignition switch do?
It carries the electrical circuits that power the vehicle's systems and engage the starter when you turn the key, controlling the run, start, and accessory positions.
What are signs my ignition switch may need replacing?
Common signs include intermittent starting, a no-crank condition, or accessory circuits that lose power. Diagnose the cause first, since these symptoms can have other sources.
What are the conductors made of?
The switch uses copper alloy conductors, which provide strong electrical conductivity with low resistive losses.
Is this switch tested before shipping?
Yes. Each unit is 100% tested to verify both mechanical and electrical switching performance.
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.