O.S. Thermo Carburetor Insulator 20K/21C/20L/21H/21J

In Stock Online!
(Usually ships in 24 hours)
Check Store Availability
Please be aware that pricing and product availability in-store may vary from what’s available online because each store is independently owned and operated.
This item is eligible for $1.99 flat rate shipping Learn More
Part# OSM23781110
Read Reviews
Write a Review
O.S. Thermo Carburetor Insulator 20K/21C/20L/21H/21J
This is a replacement thermo carb insulator gasket for O.S. 20K/21C/20L/21H/21J carburetors. This is the small gasket that goes between the carburetor and the engine crankcase to stop heat transfer from the crankcase to the carburetor. This fits on the O.S. 21 VZ-B V-Spec and 30 VG engines.

This product was added to our catalog on April 19, 2006

Wednesday, Jun 2 2010 (about 10 years ago)
O.S. Thermo Carburetor Insulator 20K/21C/20L/21H/21J
If you get this stuck in a motor, heat up the engine to running temp and work the carb in and out to remove it.