Parts for the

T18 & T19 Transmissions

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

The Master Rebuild Kit

Our master rebuild kits have 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.

Rebuild Requirements

It is 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

Because we manufacture new T18 assemblies at Novak, essentially all parts for the T18, including gears, shafts, factory adapters & tailhousings, retainers, etc. are available. For anything not shown, contact us.

Related Products

Kit PTO-K, PTO cover, six bolt style, billet

This is the rigid PTO cover that every Novak-built transmission gets, and we recommend them to our customers. They seal better and stay that way for far longer than the stamped steel versions from the factory. Stainless button-head fasteners are included.

T18 & T19 Transmission Package, Turn-Key

We've built thousands of T18 for customers around the planet. We source, remanufacture and build these in-house to your request. We then dyno test, and profesionally package and deliver it to your location, adapted and ready for installation. See and order one here.

Also available as part of our popular Turn-Key powertrain program.

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

T18 Shifter Sticks