The Mack T309L is a 9-speed transmission, available from Pro Gear and Transmission under part number T309L. This unit is sold on an exchange basis, and core charges apply at the time of purchase. Core refunds are determined in whole or in part following delivery and inspection, subject to the manufacturer's core policy. To verify this transmission is correct for your truck, have the model number and data plate information ready before ordering. The data plate is stamped into the driver's side of the transmission case, above the 8-bolt PTO cover. Call us to confirm proper fitment for your application.
A refundable core charge of $4,500.00 applies to this item and will be collected at checkout. The core charge is refunded upon receipt of your returned core, subject to its condition; customer is responsible for return shipping. Call us at (877) 776-4600 for details.
Features
Mack T309L 9-speed transmission
Part number T309L
Sold on exchange basis, core charges apply at purchase
Core refund determined upon delivery and inspection per manufacturer core policy
Data plate stamped on driver's side case above the 8-bolt PTO cover, have model and KBA number ready to confirm fit
Parts manual and diagrams: Mack T309L / T310 transmission parts list with prices
