Get your key turning smoothly again with the Standard Ignition Ignition Lock Cylinder US-370L — the keyed cylinder your ignition key inserts into and turns to operate the ignition switch. It's a direct-fit replacement for the 1996-1998 Audi A4 Quattro, 1997-1998 Audi A4, 1997-1999 Audi A8, 1997-1999 Audi A8 Quattro, 1998-2000 Audi A3, 1998-2001 Audi A6, 1998-2001 Audi A6 Quattro, and 2002-2003 Volkswagen Golf.
- Function: Houses the key tumblers and rotates with the key to actuate the ignition switch through its accessory, run, and start positions.
- Direct fit: Designed to install on the listed Audi and Volkswagen applications.
- Signs it may need replacing: A key that sticks, is hard to insert or turn, or a cylinder that spins without engaging — if a worn lock cylinder is the cause, this replaces it.
If your key or ignition trouble traces to a worn cylinder, replacing it restores proper key operation; diagnose the cause first, since ignition faults can also stem from the switch, key, or wiring.
Interchange: CS844L · KS6844L · LC64180 · 4D0905855B · 4D0905855J
Manufacturer part number US-370L.
This part cross-references / interchanges with the following part numbers:
Frequently Asked Questions
What does this ignition lock cylinder do?
It's the keyed cylinder your ignition key inserts into. Turning the key rotates the cylinder to operate the ignition switch through its accessory, run, and start positions.
Will it fit my vehicle?
It's a direct-fit replacement for the listed Audi A3, A4, A4 Quattro, A6, A6 Quattro, A8, A8 Quattro, and Volkswagen Golf applications. See the Buyer's Guide tab to confirm your year and model.
What are the signs this part may need replacing?
A key that sticks, is hard to insert or turn, or a cylinder that spins freely without engaging. If a worn lock cylinder is the cause, this part replaces it.
What numbers does this part interchange with?
It interchanges with CS844L, KS6844L, LC64180, 4D0905855B, and 4D0905855J. The manufacturer part number is US-370L.
Does a new lock cylinder come already keyed?
We don't have that detail in the supplier facts. Consult the vehicle service information and Standard Ignition's instructions for keying and installation before ordering.
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