O.S. 11K Slide Carburetor for 18TZ & 21TM Engines

The O.S. 11K Slide Carburetor is a genuine O.S. replacement and upgrade carburetor for compatible 18TZ and 21TM nitro engines. Known as a popular upgrade for 21TM owners, the 11K carb provides a proven tuning platform with smooth throttle response, dependable idle behavior, and precise mixture adjustment.

This is a great option for replacing a worn carburetor, refreshing an older engine, or upgrading to the 11K setup without needing to source parts separately.

O.S. part #21982000

Free ground shipping.