Add a vehicle or application below.


Detroit DT12-OA Transmissions, New/Rebuilt/Used

Shop our large inventory of New/Rebuilt/Used Detroit DT12-OA Transmissions for sale online. Enjoy our hassle-free online checkout or call to speak to an expert.
Clear Filters
Submit Part Request
  Make Sure It Fits!
We need more information to verify that this product fits.
  • Check Fit   

    Refine Fitment Options


    Select and Apply a Fitment to Filter Results


    DT12-OA-XX50, S# Prefix 715384/716330, Overdrive, A Box (DT12 Classic)
    DT12-OA-XX50, S# Prefix 715384/716330, Overdrive, A Box, with Rear Mount PTO (DT12 Classic)
    DT12-XX50-OH1/OH, S# Prefix 715384/716330, Over Drive, A Box (GHG17-GHG21)
    DT12-XX50-OH1/OH, S# Prefix 715384/716330, Over Drive, A Box, with Rear Mount PTO (GHG17-GHG21)
    DT12-OA-XX50, S# Prefix 715384/716330, Overdrive, A Box (DT12 Classic)
Detroit DT12-OA Transmission Assembly | Assy# 71538401644763

Detroit DT12-OA Transmission - Used

USED
Assembly#: 71538401644763
Input Lgth: VERIFY
Clutch Housing Size: VERIFY
Speeds: 12 SPEED
Item:25817352
London, OH $6050.00
 with exchange

Detroit DT12-OA Transmission Assembly | Assy# 1-2280890akz

Detroit DT12-OA Transmission - Used

USED
Assembly#: 1-2280890AKZ
Input Lgth: 13
Clutch Housing Size: SAE 1
Speeds:
Item:25804915
Winamac, IN $6050.00
 with exchange

Detroit DT12-OA Transmission Assembly | Assy# 716330e0002462

Detroit DT12-OA Transmission - Used

USED
Assembly#: 716330E0002462
Input Lgth:
Clutch Housing Size:
Input Dia:
Item:25794728
Des Moines, IA $6050.00
 with exchange

Detroit DT12-OA Transmission Assembly | Assy# 71538401606385

Detroit DT12-OA Transmission - Used

USED
Assembly#: 71538401606385
Input Lgth: 13.5
Clutch Housing Size: SAE 1
Input Dia: 2.0
Item:25729328
Winamac, IN $6050.00
 with exchange

Detroit DT12-OA Transmission Assembly | Assy# 7153846216464

Detroit DT12-OA Transmission - Used

USED
Assembly#: 7153846216464
Input Lgth: 10
Clutch Housing Size: SAE 1
Input Dia: 1.75
Item:25760939
Sioux Falls, SD $4875.00
 with exchange

Detroit DT12-OA Transmission Assembly | Assy# 716330e0022975

Detroit DT12-OA Transmission - Used

USED
Assembly#: 716330E0022975
Input Lgth: Automatic
Clutch Housing Size:
Input Dia: AUTOMATIC
Item:25760908
Council Bluffs, IA $4875.00
 with exchange

Detroit DT12-OA Transmission Assembly | Assy# 176330e0013574

Detroit DT12-OA Transmission - Used

USED
Assembly#: 176330E0013574
Input Lgth:
Clutch Housing Size: VERIFY
Input Dia:
Item:25735244
Council Bluffs, IA $6050.00
 with exchange

Detroit DT12-OA Transmission Assembly

Detroit DT12-OA Transmission - Rebuilt

REBUILT - Gtp reman trans includes actuator,release bearing on input and sensors does not include yoke, Side ...
Assembly#:
Input Lgth:
Clutch Housing Size: VERIFY
Input Dia:
Item:DET DT12-OA
$10296.00
 with exchange

Detroit DT12-OA Transmission Assembly | Assy# 71538401596539

Detroit DT12-OA Transmission - Used

USED
Assembly#: 71538401596539
Input Lgth: Automatic
Clutch Housing Size: VERIFY
Input Dia: AUTOMATIC
Item:25779077
Kansas City, MO $6050.00
 with exchange

Detroit DT12-OA Transmission Assembly | Assy# 71538401676043

Detroit DT12-OA Transmission - Used

USED
Assembly#: 71538401676043
Input Lgth: Automatic
Clutch Housing Size: VERIFY
Input Dia: AUTOMATIC
Item:25756229
Kansas City, MO $6050.00
 with exchange

Detroit DT12-OA Transmission Assembly | Assy# 716330e0049236

Detroit DT12-OA Transmission - Used

USED - Does not include, Tcm, Wire harness, Throw out bearing assy, Clutch possition switch
Assembly#: 716330E0049236
Input Lgth: -
Clutch Housing Size: VERIFY
Input Dia: AUTOMATIC
Item:25690817
Louisville, KY $4875.00
 with exchange

Detroit DT12-OA Transmission Assembly | Assy# 71538401652196

Detroit DT12-OA Transmission - Used

USED - Inspected 2/25/25
Assembly#: 71538401652196
Input Lgth: Automatic
Clutch Housing Size: VERIFY
Input Dia: AUTOMATIC
Item:25695422
Indianapolis, IN $6050.00
 with exchange

Detroit DT12-OA Transmission Assembly | Assy# 716330e0098404

Detroit DT12-OA Transmission - Used

USED
Assembly#: 716330E0098404
Input Lgth: Automatic
Clutch Housing Size: VERIFY
Speeds: AUTOMATIC
Item:25811749
Kansas City, MO $4875.00
 with exchange
Detroit DT12-OA Transmission Assembly | Assy# 715384g2099147

Detroit DT12-OA Transmission - Used

USED
Assembly#: 715384G2099147
Input Lgth: Automatic
Clutch Housing Size: VERIFY
Speeds: AUTOMATIC
Item:25808028
Kansas City, MO $4875.00
 with exchange
Detroit DT12-OA Transmission Assembly | Assy# 715384g2081268

Detroit DT12-OA Transmission - Used

USED
Assembly#: 715384G2081268
Input Lgth: Automatic
Clutch Housing Size: VERIFY
Input Dia: AUTOMATIC
Item:25787403
Kansas City, MO $4875.00
 with exchange
Detroit DT12-OA Transmission Assembly | Assy# 71538462211621

Detroit DT12-OA Transmission - Used

USED
Assembly#: 71538462211621
Input Lgth:
Clutch Housing Size: VERIFY
Speeds:
Item:25816147
Winamac, IN $4875.00
 with exchange

Detroit DT12-OA Transmission Assembly | Assy# 715384g2251932

Detroit DT12-OA Transmission - Used

USED
Assembly#: 715384G2251932
Input Lgth: AUTOMATIC
Clutch Housing Size: SAE 1
Speeds: 12
Item:25818177
Des Moines, IA $4875.00
 with exchange

Our Locations

View Map
While Vander Haag's, Inc still holds strong to its family focused values that have been at the core of the business since first opening in 1939, the company now features 11 Midwest locations selling quality used/rebuilt/new truck parts, selling commercial trucks & trailers, and providing full service heavy duty truck repair. 43.178044 -95.155024  Spencer, IA 41.640436 -93.584249  Des Moines, IA 43.594099 -96.709450  Sioux Falls, SD 41.158006 -95.826804  Council Bluffs, IA 39.065417 -94.498172  Kansas City, MO 41.033283 -86.596167  Winamac, IN 39.740696 -86.255676  Indianapolis, IN 39.960151 -83.366700  London, OH 38.176011 -85.750102  Louisville, KY 32.807028 -96.873557  Dallas, TX 38.751480 -90.470276  Bridgeton, MO

Connect