Complete T18 & T19 Transmission Packages

t18_with_188_adapter_overheadOne of the very best four-speed transmissions ever is the Borg Warner T18 .

Novak's T18 (or T19) is professionally and meticulously rebuilt. We use the best components, including bearings, synchronizers, bushings, seals and gaskets built by our T18 specialists and experts. Any required updated and improvements are performed.

A new, unbent transmission shifter cane is included and ready for the installer to bend to the particular application and driver's preference (if you wish you use your factory stick, let us know and we'll apply a discount).

Applications & Compatibility

Factory Style Build vs. Adapted Build

Our factory style builds are OEM style replacement transmissions that may require the use of the vehicle owner's original tailhousing (either 2wd or 4wd) to complete the installation. 

Adapted builds are designed primarily for installation into Jeep vehicles and include the installed aftermarket Novak mainshaft, adapter kit, rear mount, and pilot bushing as indicated for the customer's scenario.


An example of a T18 with Novak adapter, installed and ready.

Transfer Case Adaptability

Your T18 /T19 can be ordered ready to join to the following Jeep transfer cases:

We can also do a full rebuild of your Jeep transfer case if you would like to ship it to us. We can provide any upgrade components for it that you wish. It will be pre-installed to the transmission and ready to lift into your Jeep.

Bellhousing Compatibility

For typical adapted builds, we will also configure your front input section for a variety of OEM or conversion bellhousings including:

  • Ford Small or Big Block bellhousings
  • GM 4-11/16" bore bellhousings
  • GM 5-1/8" bore bellhousings
  • AMC I6 (258 & 4.0L) & V8 bellhousings

We can often source a bellhousing or use your particular Ford, GM or AMC bellhousing as required. Conversions to AMC bellhousings can include necessary machining for Crank Position Sensors (CPS), face pockets (if necessary) and the bellhousing rear face bolt pattern. The pilot bushing is included as specified.


Your T98, T18 or T19's Construction:

We start with a great core transmission and do a full disassembly and breakdown

Detailed parts inspection and measurement are performed

The main case and top cover are hot-cleaned, media blasted, primed and enameled with a tough, industrial grade finish

The top shifter cover is fully rebuilt with new springs, poppets and hardware

Full gearbox reassembly using all new bearings, bushings, synchronizers, snap rings - all consumable transmission parts - are replaced and new hard parts are installed wherever indicated

A new reverse switch with simple spade style terminals is installed

Your transfer case and bellhousing (if available) are installed and configured

The transmission undergoes a 24 hour leakdown test, after which it is fully stress-tested through its full operational range on our 300 HP test stand


Your transmission package is palleted, wrapped, fully insured and ready to bolt into your application. Novak will seek the best competitive shipping rates with our extensive trucking networks. It will arrive at a location of your choosing, though we strongly recommend a business location with a dock / forklift for delivery, as residential and liftgate fees can add up to an extra $100. per delivery.


Pricing is generally as follows:

  • T18 factory style build: $1520.
    • T18 adapted build with a Novak adapter assembly, with any special front retainers, a new straight shifter stick, knob & urethane mount: $2045.
  • T19 factory style build (4:1 version): $1680.
    • T19 adapted build with a Novak adapter assembly, with any special front retainers, a new straight shifter stick, knob & urethane mount: $2230. (limited availability)
  • T19 5:1 version: $1768. 
    • T19 adapted build with a Novak adapter assembly, with any special front retainers, a new straight shifter stick, knob & urethane mount: $2245. (limited availability)


Because of the many variations involved, we encourage you to contact us directly by phone or e-mail. We will help you put together your transmission to best fit your requirements.



Parts for the

T18 & T19 Transmissions

The T18 is fully supported for parts. The transmission remains in aftermarket production and is still one of the most popular Jeep conversion transmissions available.


Transmission: T18 T19
Vehicle Source:

use the options above to select the correct product for your conversion


Our master rebuild kit has been assembled for our customer's rebuilds as well as our own. It is the most complete kit we've seen anywhere and features all the consumable and wear item components.

It is recommended that you use the supplied shaft bushings with the supplied thrust washer for simplicity of the rebuild and standardization.

Rebuild Requirements

It is very common for our customers to do top-level rebuild work, using good methods and by following our included instruction guide.

We suggest the rebuilder have access to a set of snap ring pliers, a bearing puller and a hydraulic press.

Other Components

Essentially all parts for the T18, including gears, shafts, factory adapters & tailhousings, retainers, etc. are available new and affordably so. For anything not shown, contact us.



Key items of interest:


Click on any item description in blue below to expand its details for purchase. You can use your browser's Back button to return to this page and your cart items will remain.

For your reference, all asterixed * items below are included in our master rebuild kit, above.

Items indicated with a "" are not available singly, but are included in the Small Parts Kit, #A below.

1. Retainer, bearing, front input
2. Gasket, front input bearing retainer *
3. Seal, front input *
4. Ring, retaining, front input shaft to bearing *
5. Ring, retaining, front input bearing to case *
6. Bearing, front input *
7. Shield or slinger, front input *
8. Shaft, front input (aka, input gear or clutch shaft)
9. Ring, clip, input shaft to mainshaft pilot rollers *
10. Bearings, needle rollers *
11. Ring, synchronizer, 3rd to 4th gear *
12. Slider, clutch, 3rd / 4th gear
13. Ring, clip, input shaft to mainshaft pilot rollers *
14. Spring, synchronizer hub, 3rd / 4th *
15. Hub, synchronizer, 3rd / 4th
16. Spring, synchronizer hub, 3rd / 4th *
17. Keys, synchronizer hub, 3rd / 4th
18. Assembly, syncrhonizer hub, 3rd / 4th
19. Ring, synchronizer, 3rd to 4th gear *
20. Gear, 3rd & Kit, 3rd gear update
21. Bushing, mainshaft journal, 3rd gear *
22. Washer, thrust *
23. Gear, 2nd
24. Ring, synchronizer, 2nd to 3rd gear *
25. Bushing, mainshaft journal, 2nd gear *
26. Shaft, main
27. Spring, synchronizer hub, 1st / 2nd *
28. Hub, synchronizer, 1st / 2nd
29. Spring, synchronizer hub, 1st / 2nd *
30. Slider, 1st / Reverse gear
31. Keys, syncrhonizer hub, 1st / 2nd *
32. Assembly, syncrhonizer hub, 1st / 2nd
33. Bushing, mainshaft journal, 1st gear *
34. Gear, 1st
35. Washer, thrust, mainshaft to rear bearing *
36. Bearing, rear output *
37. Ring, retaining, rear output bearing to case *
38. Ring, retaining, mainshaft to rear output bearing*
39. Bearing, roller, countershaft front *
40. Ring, retaining, countershaft front bearing *
41. Washer, countershaft front *
42. Gear, countershaft drive
43. Spacer, countershaft
44. Gear, countershaft, third
45. Shaft, counter
46. Bearing, ball roller, countershaft rear *
47. Ring, retaining, countershaft rear bearing to case *
48. Ring, retaining, countershaft rear bearing to shaft *
49. Gear, reverse, includes idler bushing
50. Shaft, reverse idler (currently not available)
51. Cover, PTO port
52. Gasket, PTO port cover *
53. Screw, countershaft front bearing cover plate
54. Plate, countershaft front bearing cover
55. Gasket, countershaft front bearing cover *
56. Plug, drain
57. Plug, filler
58. Gasket, top cover *
59. Gasket, rear tailhousing to case *
60. Bolt, PTO cover plate

Measuring the finger length of a shifter stick. The scale datum is the base of the ball and the measurement is taken to the tip of the finger.