OSC 921
OSC part number 921 is a radiator in the Cooling System system. This catalog matches it to 2,438 year-and-engine configurations from 1987 to 2026.
Verified fitment includes 2026 Chevrolet Silverado 3500 6.6L V8 ; 2026 Chevrolet Silverado 3500 6.6L V8 DIESEL Turbocharged ; 2026 Chevrolet Trailblazer 1.2L L3 Turbocharged ; 2026 Chevrolet Trailblazer 1.3L L3 Turbocharged ; 2026 Chevrolet Trax 1.2L L3 Turbocharged , plus 2,433 other configurations. See every vehicle this part fits.
Frequently Asked Questions
What is OSC 921?
OSC part number 921 is a radiator with published application data for 2,438 vehicle configurations from 1987 to 2026. Use the manufacturer part number to cross-reference your old part or a repair quote before you order.
Which vehicles does OSC 921 fit?
This catalog matches 921 to 2,438 year-and-engine configurations from 1987 to 2026. Open the compatible-vehicles list for every make, model and engine, and read the notes for position or trim qualifiers.
Is OSC 921 OEM or aftermarket?
What matters is the published application data for this part number, not the label on the box. OSC 921 is listed with its manufacturer part number so you can compare it to an OEM number or another brand that covers the same fitment.
AutoFactsDB is reader-supported. As an Amazon Associate, we earn from qualifying purchases made through links on this page — at no extra cost to you.
Manufacturer names, model designations and part numbers are used for identification and fitment reference only. AutoFactsDB is an independent catalog and is not affiliated with, endorsed by, or sponsored by any vehicle manufacturer displayed on this page.