Jeep AX15 Transmission for Sale

Aisin Warner 5-speed manual transmission with overdrive 5th gear (0.79:1) and synchronized

Code: vaz154
  • In Stock, Jeep AX15 Transmissions Available
  • Free Shipping to All 50 States via Freight Pallet, 5 to 10 Business Days
  • Donor Jeep Confirmed (Wrangler YJ / Wrangler TJ / Cherokee XJ / Comanche MJ)
  • Engine Pairing Documented (4.0L I6 / 2.5L I4 / 4.2L I6)
  • All 5 Forward Gears Tested
  • Synchronized Reverse Engagement Verified (Distinguishing AX15 Feature)
  • Overdrive 5th Gear (0.79:1) Engagement Confirmed
  • Synchro Condition Assessed (Brass Synchro Wear Verified)
  • Input Shaft Verified (10 spline, 1.125 inch diameter)
  • Output Shaft Verified (23 spline, 1.375 inch diameter)
  • Bellhousing Pattern Confirmed (Jeep AMC / Chrysler Specific)
  • Aluminum Case Inspected for Cracks
$1,499.00 In Stock

About the Jeep AX15 Transmission

This robust gearbox was popular in Jeep Wranglers and Cherokees from 1988 to 1999, known for its durability and smooth shifting. Whether replacing a worn-out transmission or upgrading from the less capable AX5 (4-cylinder 5-speed) or older 4-speed transmissions, this AX15 transmission for sale at our store offers improved gear ratios and a stout Aisin Warner design that can handle the demands of both on-road driving and off-road adventures. This Jeep AX15 transmission for sale at our site is thoroughly inspected and ready to breathe new life into your Jeep project.

About the AX15 Transmission

The Jeep AX15 transmission is a highly regarded manual gearbox used in Jeep vehicles from 1988 to 1999. Known for its durability and smooth shifting, the AX15 is a five-speed transmission featuring synchronized reverse gear (a notable feature for the era) and overdrive fifth gear (0.79:1), making it ideal for both on-road and off-road driving. Its robust Aisin Warner design and compatibility with various Jeep models, including the Wrangler YJ and TJ, Cherokee XJ, and Comanche MJ, make it a popular choice among Jeep enthusiasts. Because the AX15 is essentially the same fundamental transmission as the Toyota R150 (with a Jeep-specific bellhousing), it benefits from proven Aisin engineering and durability.

Why Choose the AX15 Transmission?

The Aisin-Warner AX15 is a medium-duty, 5-speed manual transmission that has earned a reputation for reliability and durability. Originally featured exclusively in Jeep models from 1988 to 1999, this AX15 transmission for sale today is a popular choice for Jeep owners looking to upgrade or replace their existing transmission. The AX15 fits factory bolt-in into Wrangler YJ, Wrangler TJ (through 1999), Cherokee XJ, and Comanche MJ, making it a far easier swap than alternatives that require custom adapters.

Key Features of the AX15 Transmission

  • Overdrive 5th Gear (0.79:1): Enhances fuel efficiency and reduces engine wear during highway driving by lowering engine RPM at cruising speeds.
  • Synchronized Reverse Gear: Facilitates smoother and easier engagement, reducing gear grinding that's common with non-synchronized reverse designs.
  • Aluminum Case: Lightweight (just 97 lbs total transmission weight) yet sturdy, aiding in heat dissipation and overall transmission durability.
  • Interchangeability: Compatible with a range of Jeep transfer cases (NP207, NP231 Command-Trac, NP242 Selec-Trac, NP249 Quadra-Trac) and Jeep engines (4.0L I6, 4.2L I6, 2.5L I4), offering flexibility in vehicle modifications.
  • Rebuildable Design: Easy to service and rebuild, extending the transmission's lifespan. Rebuild kits readily available from Aisin, Mopar, and aftermarket suppliers (Cottman, Allstate Gear, etc.).
  • Wide Gear Ratio Spread: Provides a good balance between low-end torque (3.83:1 first) and high-speed cruising capabilities (0.79:1 overdrive). The 4.84:1 ratio spread (between 1st and 5th) gives the AX15 wide flexibility.
  • Toyota R150 Heritage: The AX15 shares its fundamental architecture with the Toyota R150 manual transmission, benefiting from Aisin's proven design used in millions of Toyota pickup, 4Runner, and Tacoma applications.

Compatibility: Jeep Applications

The AX15 transmission is compatible with the following Jeep models and engines:

Vehicles:

  • Jeep Cherokee (XJ) 1988 to 1999 with 4.0L I6 or 2.5L I4
  • Jeep Comanche (MJ) 1988 to 1992 (Cherokee-based pickup truck)
  • Jeep Wrangler (YJ) 1989 to 1995 with 4.2L I6 or 2.5L I4
  • Jeep Wrangler (TJ) 1997 to 1999 with 4.0L I6 (replaced by NV3550 in 2000)

Engines:

  • Jeep 4.0L Inline-6 (AMC / Jeep "PowerTech" 242 cu in, 190 to 220 HP, the legendary Jeep I6)
  • Jeep 2.5L Inline-4 (AMC / Jeep 150 cu in, 121 to 130 HP)
  • Jeep 4.2L Inline-6 (AMC 258 cu in, predecessor to the 4.0L)

Note on TJ Wrangler 2000+ models: The AX15 was replaced by the NV3550 in TJ Wranglers starting in model year 2000. If you have a TJ from 2000 to 2006, you need an NV3550, not an AX15. Earlier 1997-1999 TJ Wranglers use the AX15.

Quality Assurance

When you purchase an AX15 transmission for sale from us, you can expect:

  • Thorough inspection and testing of all used transmissions
  • Donor Jeep identification (Wrangler YJ, Wrangler TJ, Cherokee XJ, or Comanche MJ)
  • Engine pairing documentation (4.0L I6, 2.5L I4, or 4.2L I6)
  • All 5 forward gears and synchronized reverse tested
  • 5th gear overdrive engagement verified
  • Aluminum case crack inspection
  • Bellhousing pattern confirmation for Jeep applications
  • Competitive pricing

Why Choose Our Used AX15 Transmissions?

  • Cost-effective alternative to new / reman ($1,499 vs $1,800 to $2,800 reman)
  • Proven reliability with millions of Aisin AX15 / R150 applications worldwide
  • Wide compatibility with all Jeep XJ / YJ / TJ / MJ applications
  • Synchronized reverse for smoother shifting
  • Lightweight 97 lb case for easier installation than HD truck transmissions

Don't miss this opportunity to upgrade your Jeep with a reliable AX15 transmission. Browse our selection to find this Jeep AX15 transmission for sale today and give your vehicle the performance it deserves. Here at Vaz Auto Solutions, you will find the AX15 Transmission for sale at the perfect price. We work to make your hunt for the perfect part for your automobile more seamless and efficient.

AX15 vs Other Jeep 5-Speed Manuals

TransmissionApplicationTorque RatingWeightNotes
AX15 (this listing)XJ / YJ / TJ / MJ 1988-1999280 lb-ft97 lbsAisin Warner, syncro reverse, the gold standard
AX5XJ / YJ 4-cyl applications170 lb-ft~85 lbs4-cylinder only, weaker than AX15
NV3550TJ Wrangler 2000-2004300 lb-ft~110 lbsReplaced AX15 in TJ
NV1500Dodge Dakota230 lb-ft75-80 lbsDifferent chassis, NOT for Jeep
NSG-370JK Wrangler 2007-2018350 lb-ft~140 lbs6-speed, replaces NV3550

Choose AX15 for: XJ Cherokee restoration, YJ Wrangler rebuild, TJ Wrangler 1997-1999, MJ Comanche projects, off-road builds with 4.0L I6.

Vehicle Compatibility

VehicleCompatibility
Jeep Cherokee XJ (1988-1999)4.0L I6 or 2.5L I4
Jeep Comanche MJ (1988-1992)Cherokee-based pickup truck
Jeep Wrangler YJ (1989-1995)4.2L I6 or 2.5L I4
Jeep Wrangler TJ (1997-1999)4.0L I6 (NOT 2000-2006 TJ which uses NV3550)
Engine CompatibilityJeep 4.0L I6 (primary), 2.5L I4, 4.2L I6

Condition and Inspection

  • Donor Jeep identified (Wrangler YJ, Wrangler TJ, Cherokee XJ, or Comanche MJ)
  • Engine pairing documented (4.0L I6, 2.5L I4, or 4.2L I6)
  • All 5 forward gears tested (1st through 5th overdrive)
  • Synchronized reverse engagement verified (key AX15 feature)
  • Overdrive 5th gear (0.79:1) engagement confirmed
  • Synchro condition assessed (brass synchros)
  • Input shaft 10-spline, 1.125 inch diameter verified
  • Output shaft 23-spline, 1.375 inch diameter verified
  • Bellhousing pattern confirmed (Jeep AMC / Chrysler specific)
  • Aluminum case inspected for cracks or impact damage
  • Top cover gasket condition inspected
  • Clutch slave cylinder hydraulic port verified
  • Fluid condition checked
  • Donor Jeep and engine pairing documented
  • All 5 forward gears tested
  • Synchronized reverse verified (distinguishing AX15 feature)
  • Overdrive 5th gear engagement confirmed
  • Synchro condition assessed
  • Aluminum case inspected
  • Free freight pallet delivery to all 50 states
  • 15 day replacement warranty on internal defects
  • Jeep XJ / YJ / TJ experienced support team
Bellhousing To Tailshaft Length 22 inches
Fluid Capacity 2.75 quarts
Fluid Type ATF+4 (Mopar specification) or compatible Mercon / Dexron ATF
Gear Ratios 1st: 3.83, 2nd: 2.33, 3rd: 1.44, 4th: 1.00 (direct), 5th: 0.79 (overdrive), Reverse: 4.22
Input Shaft 10 splines, 1.125 inches diameter
Output Shaft 23 splines, 1.375 inches diameter
Overall Length 24 inches
Torque Rating 280 lb-ft
Weight 97 pounds (lightweight aluminum case)
Type Manual Transmission
Model AX15 (also written AX-15)
Maker Aisin Warner
Speeds 5 forward speeds with overdrive 5th and synchronized reverse
Case Material Aluminum alloy
Compatibility 1999 Jeep AX15 Transmission (covers 1988-1999 production range)
Price $1,499.00
Tom Baker

Solid AX15 from Vaz Auto Solutions. Good price, arrived in decent time. Installed in my Jeep without issues. Shifts well, but packaging could've been better. Overall, happy with the purchase.

Dave Wilson

Perfect fit for my Jeep! Vaz Auto Solutions delivered a great AX15 at an unbeatable price. Quick shipping, excellent customer service. Transmission works like new. Highly recommend.

Why is the AX15 transmission popular among Jeep enthusiasts?
The AX15's reputation for durability, smooth shifting, synchronized reverse, and off-road capability makes it a favorite for Jeep owners. The Aisin Warner design (shared architecture with the Toyota R150) brings proven Japanese engineering quality to Jeep applications. The AX15 is also one of the few manual transmissions with factory synchronized reverse in its production era, which dramatically improves drivability over non-synchronized reverse designs. The 4.84:1 ratio spread between 1st and 5th gear provides excellent flexibility for both highway driving (overdrive 5th) and off-road crawling (3.83:1 first when paired with low-range transfer case).
Can the AX15 transmission handle off-road conditions?
What modifications can be done to enhance AX15 performance?
Does the AX15 transmission require special maintenance?
Is the AX15 transmission suitable for towing?
Can the AX15 transmission be swapped with other Jeep transmissions?
Is the AX15 transmission compatible with aftermarket performance upgrades?
What's the difference between AX15 and AX5?

15 Day Replacement Warranty.

Covered:

  • Internal defects at delivery

Not Covered:

  • Improper installation
  • Damage from operation above 280 lb-ft torque rating
  • Clutch wear post-delivery
  • Fluid contamination
  • Labor costs
  • Freight damage

Contact (240) 301-0095 within 15 days.

  • Donor Jeep Documented: Wrangler YJ / TJ / Cherokee XJ / Comanche MJ
  • Engine Pairing Confirmed: 4.0L I6 / 2.5L I4 / 4.2L I6
  • All 5 Forward Gears Tested: First through overdrive 5th
  • Synchronized Reverse Verified: Distinguishing AX15 feature
  • Overdrive 5th Confirmed: 0.79:1 ratio engagement
  • Synchros Assessed: Brass synchro wear documented
  • Input Shaft Verified: 10 spline, 1.125 inch confirmed
  • Output Shaft Verified: 23 spline, 1.375 inch confirmed
  • Bellhousing Pattern Confirmed: Jeep AMC / Chrysler specific
  • Aluminum Case Inspected: No cracks or impact damage
  • Free Shipping All 50 States: Freight pallet
  • No Core Charge: Keep your old transmission
  • 15 Day Warranty: Internal defects covered
Search Products
Categories
Engines Transmissions Axles Suspension Steering Racks Wheels Tires Brakes View All Parts
Chat on WhatsApp
(240) 301-0095