Holiday Notice: We will be closed for Thanksgiving on Thurs., November 27. Orders will ship the next business day. Please note that shipping carriers may have varied holiday hours. 

My Cart 0
  • Sign In
My Quote
Your Source for Truck Parts & More 1.877.DL.ORDER
  • Compare Products

Transmission Parts

Transmission Air Module

Shifter

Transmission Repair Kits

Transmission Oil Cooler

Transmission Gasket & Seal

Transmission Accessory

Air Shift Knob

Shift Solenoid

Transmission Air Regulator

Transmission Breather

Transmission Range Valve

Transmission Bearing

Transmission Air Piping

Transmission Harness

Transmission Gear

Transmission Input Shaft

Transmission Drain Plug

Covers & Plates

Transmission

Transmission Shifter Cable

View as Grid List

12 Items

Set Descending Direction
  1. Detroit Countershaft Brake Cover O-ring | 015 997 40 48
    Detroit Countershaft Brake Cover O-ring | 015 997 40 48
    Special Price $1.53 Regular Price $1.91
    Add to Wish List Add to Compare
  2. Detroit Diesel Input Shaft Seal | 019 997 05 47
    Detroit Diesel Input Shaft Seal | 019 997 05 47
    Special Price $24.10 Regular Price $30.12
    Add to Wish List Add to Compare
  3. Detroit DT12 B Output Yoke O-Ring | A 013 997 21 45
    Detroit DT12 B Output Yoke O-Ring | A 013 997 21 45
    Special Price $3.16 Regular Price $3.95
    Out of stock
    Add to Wish List Add to Compare
  4. Detroit DT12 Inner Range Cylinder O-ring | 017 997 65 45
    Detroit DT12 Inner Range Cylinder O-ring | 017 997 65 45
    Special Price $2.33 Regular Price $2.91
    Add to Wish List Add to Compare
  5. Detroit DT12 Input Oil Baffle | A 389 261 06 65
    Detroit DT12 Input Oil Baffle | A 389 261 06 65
    Special Price $70.39 Regular Price $87.99
    Out of stock
    Add to Wish List Add to Compare
  6. Detroit DT12 Output Flange O-ring | 025 997 53 45
    Detroit DT12 Output Flange O-ring | 025 997 53 45
    Special Price $2.95 Regular Price $3.69
    Add to Wish List Add to Compare
  7. Detroit Radial Shaft Sealing Ring | 015 997 77 46
    Detroit Radial Shaft Sealing Ring | 015 997 77 46
    Special Price $19.10 Regular Price $23.88
    Out of stock
    Add to Wish List Add to Compare
  8. Detroit Range Cylinder Outer O-ring | 013 997 75 48
    Detroit Range Cylinder Outer O-ring | 013 997 75 48
    Special Price $6.15 Regular Price $7.69
    Add to Wish List Add to Compare
  9. Detroit Shift Actuator Seal | 960 261 06 80
    Detroit Shift Actuator Seal | 960 261 06 80
    Special Price $23.52 Regular Price $29.40
    Add to Wish List Add to Compare
  10. Detroit Valve in Transmission Case, O-Ring Seal | A0239977748
    Detroit Valve in Transmission Case, O-Ring Seal | A0239977748
    Special Price $6.59 Regular Price $8.24
    Add to Wish List Add to Compare
  11. Freightliner O-Ring Output Flange | 015 997 78 46
    Freightliner O-Ring Output Flange | 015 997 78 46
    Special Price $20.93 Regular Price $26.16
    Add to Wish List Add to Compare
  12. Freightliner Range Piston Seal | 024 997 83 47
    Freightliner Range Piston Seal | 024 997 83 47
    Special Price $20.16 Regular Price $25.20
    Add to Wish List Add to Compare
per page
Shop By
Now Shopping by
  1. Category Transmission Gasket & Seal Remove This Item
  2. Manufacturer Detroit Diesel Remove This Item
Clear All
Shopping Options
Compare Products
  1. Remove This Item
Compare
Clear All
You have no items to compare.
My Wish List
Last Added Items
  1. Add to Cart
    Remove This Item
Go to Wish List
You have no items in your wish list.
© 2025 Duallane Truck Parts, Inc.