9988 3940P-TK1 Tune-up Kit Factory Equivalent. Used On Ingersoll-Rand Model 3940P2Ti. Includes 8567 Silencer (exhaust), 8571 O-Ring (throttle valve bushing / large), 8573 O-Ring (throttle valve bushing / small) (2), 8400 O-Ring, 8140 O-Ring (throttle valve), 8144 O-Ring (throttle valve stem), 8579 Gasket (air port seal) (2), 8350 Retainer (air port seal) (2), 8283 Seal, 8561 Plunger (reverse lock), 8562 Spring, 8077 Housing Cover Gasket, 8559 Bearing, 2158 Rotor Vane (7), 8560 Bearing, 8071 Gasket, Hammer Case. This kit is made in the USA.

Century Tool & Equipment is in no way affiliated with the above manufacturers. The parts advertised for sale are not always genuine parts, but are parts made for or by Century Tool & Equipment. Reference to said numbers are for your convenience only. We reserve the right to substitute genuine parts in place of Century Tool & Equipment parts.

Warning: This product may expose you to chemicals including lead which are 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