The Allison COMPLETE PUMP BODY 29541147 AND PUMP SUPPORT 29536681 is a 31-tooth gear oil pump assembly for 1999-2007 GMC/Chevrolet trucks equipped with Allison 1000/2000 automatic transmissions, including Duramax diesel models. It is often sold as a new old stock (NOS) or refurbished component, sometimes listed under updated part number 29545809, and crucial for transmission fluid pressure. 
 
***FOR ALASKA HAWAII PUERTO RICO INTERNATIONAL AND US PROTECTORATES PLEASE MESSAGE US FOR A SHIPPING QUOTE ***