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US-21L Ignition Lock Cylinder

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$56.79Save: $43.80(77%)
Manufacturer #US-21L
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Includes keys
Color Finish:
Quantity Sold:
Sold individually
3-year or 36,000-mile Standard limited warranty
Prop 65 Warning:

Warning SymbolWARNING: This product can expose you to chemical which is 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.

Standard OE Replacement

Vehicle Fitment Information

Vehicle Name
Fitment Information
1946-1948 Chevrolet Fleetmaster
All Submodels
All Engines
1946-1948 Chevrolet Stylemaster Series
All Submodels
All Engines
1946-1950 Chevrolet Fleetline
All Submodels
All Engines
1947 Chevrolet Fleetline Truck
All Submodels
All Engines
1949 Buick Roadmaster Series 70
All Submodels
All Engines
Page 1 of 19 | Showing 1 - 5 of 93 results

Product Information


Revamp your ride with the advanced design, OEM-grade quality assurance and standard-setting performance offered by Standard’s OE replacement ignition lock cylinders. Since 1919, Standard Motor Products has engineered a full line of engine management products, including ignition parts, sensors and on-board computers.

  • Advanced design meets exceptional, OE-level standards
  • Sturdily constructed in TS 16949 certified facilities
  • Broad range of import and domestic models covered
  • Put through systematic inspection to guarantee enduring performance and quality
Need help?Call our product expert1-866-529-0412
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Mondays - Sundays7am - 11pm ET | 4am - 8pm PT
Warranty Policy
Right parts, guaranteed. If you find any defects, let us know within 60 days and we’ll take care of it. Check out our Warranty Policy for more details.
Shipping Policy
We ship fast so you can get on the road that much faster. Check out our Shipping Policy for more details.
Easy Return Policy
We’re only happy if you’re happy. If you’re not entirely satisfied with your order, you may be entitled to a refund. Check out our Return Policy for more details.

Product Q&A

Can I use this for a trunk replacement lock and key?JuniorMay 02, 2023
Best Answer:Hi Oscar, I'm pleased to assist you. No, this is for the ignition. not for the trunk. They can not be interchanged. Tell us the year, make, and model of the vehicle or the 17-character VIN so we can check for the correct lock cylinder with keys for the trunk. Have a nice day!
Grace G.STAFFMay 02, 2023
Will this car start the engine anunlock the door?Oscar R.Feb 22, 2023
Best Answer:Hi Oscar, I'm pleased to assist you. This is only for starting the engine. You'll need to use the same original keys for the door, which means you'll have two sets of keys. If interested, click the link below to place an order at a discounted offer today, while supplies last. I hope this helps. Enjoy your CP shopping experience! <a href="https://www.carparts.com/ignition-lock-cylinder/standard/sius21l?can=CPGG4850_CSQA_20230222" target="_blank">https://www.carparts.com/ignition-lock-cylinder/standard/sius21l?can=CPGG4850_CSQA_20230222</a>
Grace G.STAFFFeb 22, 2023

Customer Reviews

This set was a BARGAIN for the cost and was a perfect replacement.
Michael D.
Purchased on Jun 02, 2023