One New Aftermarket Replacement Intake/Exhaust Manifold Fits John Deere 1010 Gas Engine Tractors and Track Tractors. This manifold includes a 13″ threaded exhaust pipe. PLEASE NOTE: Does NOT come with gaskets. Manifold and pipe with gaskets are available for purchase in a separate listing. Search our store for part numbers AT13134 and R0427G. Casting number is T19981. This manifold will replace #AT21368 and AT12741 (Please note: difference is in threaded pipe but manifold is the same). Replaces part numbers: AT13134, AT21369, AT23169. This part fits models: 1010. Reference numbers: AT12741, AT12741—AT13134–AT21368, AT12741—AT13134–AT21368-A, AT13134, AT13134-A, AT21368, AT21369, AT21369-A, AT23169, AT23169-A