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    Parts for the

    Jeep AX15 Transmission

    Looking for a complete AX15? Click here.

    The Jeep AX15 one of the best and most versatile transmissions ever installed in a Jeep. If its due for a rebuild it may well be worth the work.

    The Master Rebuild Kit

    It is common for our customers to do top-level rebuild work, using good methods when rebuilding the AX15 transmission.

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

    Kit, AX15MR, master rebuild, AX15 transmission
    AX15MR

    Kit contents:

    Related Products


    Billet steel bearing retainer plate for AX15 transmissions

    Retainer, bearing, rear, upgrade, includes hardware

    This billet steel rear bearing retainer plate replaces the weak factory casting on 1985-up AX15 and R151 transmissions. It prevents flex and wear that can cause end-play and gear misalignment, maintaining proper bearing preload and long-term case rigidity for both stock and upgraded builds.

    Novak's custom 1st gear thrust washer for AX15 transmissions

    Washer, thrust, 1st gear, Novak upgraded, hardened, includes pin

    The AX15’s factory thrust washer is a known wear point under heavy load. Our upgraded hardened chromoly thrust washer is precision-machined from high-strength 4130 steel and heat-treated for exceptional surface hardness and fatigue resistance. This eliminates premature wear and end-play issues common in stock units, ensuring smoother operation and long-term durability even in demanding off-road or high-torque applications.


    AX15 Exploded Diagram

    AX15 Exploded Novak

    All parts in green are available new, Some might have a short lead time.

    1. 83500520 — Shift Boot 2. K101-5SPEED — Shifter Kit 3. 5252055 — Gearshift Lever (YJ) / 5252042 (TJ) 4. 83500519 — Shift Lever Bushing 5. Shifter Housing 6. 5252043 — Shift Tower Gasket 7. Bolt, Shift Tower 8. 5252039 — Restrict Pin 9. Shift Detent Spring, Ball, and Cap
    10. Shift Detent Spring, Ball, and Cap 11. 83500629 — Reverse Lamp Switch 12. 83500623 — Fill Plug 13. 83506214 — Snap Ring, Input Shaft 14. Bolt, Front Bearing Retainer 15. 4636382 — Front Bearing Retainer 16. Snap Ring, Countershaft
    17. 5252034 — Front Case Half 18. 83500512 — Drain Plug 19. Roll Pin 20. Case Bolts 21. 5252039 — Restrict Pin 22. Rear Case 23. 83506077 — Bearing, Caged Needle 3rd Gear 24. AX15-11 — 3rd Gear 25. 83506253 — Ring, Synchronizer, 3rd and 4th 26. AX15-15 — Slider, 3rd / 4th 27. 83506255 — Synchronizer Springs, 3rd & 4th 28. 83506248 — Synchronizer Hub, 3rd / 4th 29. 83506251 — Synchronizer Keys, 3rd / 4th 30. Snap Ring 31. 83506253 — Ring, Synchronizer, 3rd and 4th 32. 83506078 — Bearing, Input, Caged Needle 33. 4636370 — Input Shaft (Jeep 1992–1997) / 5252081 (1988–1991) 34. DG4092ARKBD — Bearing, Input Shaft 36. Snap Ring, Input Shaft Bearing
    37. 5252057 — Shift Fork, 1st and 2nd
    38. 5252058 — Shift Fork, 3rd and 4th
    39. Reverse Arm
    40. 5252060 — Reverse Lever
    41. Shift Fork, 5th
    42. 5252065 — Shift Rail, Reverse
    43. Shift Selector
    44. Shift Rails, 1st–5th
    45. Snap Ring, Countershaft
    46. Snap Ring, Countershaft Bearing 47. 25RTK59SN — Bearing, Countershaft Front 48. AX15-8 — Countershaft / Cluster Gear 49. 34RUKS64NR-J — Bearing, Rear Countershaft 50. 83506245 — Thrust Washer, Cluster Gear 51. 83506079 — Bearing, Caged Needle, 5th Gear Countershaft 52. 4637535 — 5th Gear, Countershaft 53. 83506255 — Synchronizer Spring, 5th Gear 54. 4637532 — Synchronizer Keys, 5th Gear (Updated) 55. 83506257 — Slider, 5th Gear 56. 4637533 — Synchronizer, 5th Gear 57. 83506242 — Synchronizer Cone, 5th Gear 58. Nut / Snap Ring 59. 5252084 — Reverse Gear 60. 83506258 — Reverse Idler Shaft 61. 83506076 — Bearing, Caged Needle, 2nd Gear 62. 4636369 — 2nd Gear 63. 83506253 — Synchronizer Ring, 1st and 2nd 64. 83506254 — Synchronizer Spring, 1st and 2nd 65. 83506250 — Synchronizer Keys, 1st and 2nd 66. 83506247 — Synchronizer Hub, 1st / 2nd 67. 5252082 — Slider, 1st and 2nd 68. 83506253 — Synchronizer, 1st and 2nd 69. 4636368 — 1st Gear 70. 83506075 — First Gear Caged Bearing 71. 83506246-N — Thrust Washer, 1st Gear (Novak Upgraded) 72. DG3585ARKMD — Bearing, Mainshaft Rear 73. Snap Ring, Rear Mainshaft Bearing
    74. Snap Ring, Rear Mainshaft
    75. 83506243 — Mainshaft 76. 5252083 — 5th Gear, Mainshaft 77. Snap Ring 78. 5252053 — Input Oil Seal 79. 83503108 — Output Oil Seal 79. 5252063-N-K — Rear Bearing Retainer (Novak Upgraded, includes hardware)

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