FRASER ENGINES - AX15 Manual Transmission Assembly

AX15 Manual Transmission: Durability and Strength for Your Jeep Vehicle

The AX15 manual transmission, developed by Aisin, is a robust, 5-speed gearbox prized for its strength, versatility, and dependability in various Jeep models. Built to handle heavier loads and higher torque outputs than its AX5 counterpart, the AX15 is a go-to choice for off-road enthusiasts and drivers seeking a reliable, long-lasting manual transmission. Its well-spaced gear ratios and sturdy internal components make it suitable for both daily commuting and tackling challenging terrains.

Key Features of the AX15 Transmission

1. 5-Speed Manual Design

   • The AX15 features five forward gears and one reverse, each fully synchronized for smooth shifting. Its gear ratios strike a balance between low-speed crawling power and comfortable highway cruising.

2. Robust Construction

   • Built with a durable aluminum housing and reinforced steel gear assemblies, the AX15 is engineered to withstand the stresses of off-roading, towing, and everyday driving.

3. Higher Torque Capacity

   • Compared to the AX5, the AX15 can handle more torque, making it a favored option for vehicles with upgraded engines or heavier aftermarket accessories.

4. Straightforward Maintenance

   • Service and maintenance are simplified thanks to accessible internals, reliable bearings, and a design that accommodates regular fluid changes.

5. Enhanced Off-Road Performance

   • The AX15’s versatile gear ratios cater to low-speed crawling as well as high-speed stability, providing a confident and controlled driving experience on diverse terrains.

Common Applications of the AX15 Transmission

The AX15 manual transmission is widely used in Jeep models known for combining daily usability with off-road potential. Typical applications include:

• Jeep Wrangler (YJ & TJ) (1989–1999)

  • Used primarily with the 4.0L inline-six engine, the AX15 delivers reliable performance for both on- and off-road adventures.

• Jeep Cherokee (XJ) (1989–1999)

  • Paired with the 4.0L engine in select trim levels, offering a solid manual option for enthusiasts seeking extra control.

• Jeep Comanche (MJ) (1989–1992)

  • Combined with the 4.0L inline-six, providing superior hauling and towing capabilities.

Why Choose the AX15 Transmission for Your Jeep?

The AX15 transmission is an ideal choice for drivers who demand more torque capacity and off-road readiness from their Jeep. Whether traversing rocky trails, hauling payloads, or cruising the highway, the AX15 balances strength, shifting smoothness, and ease of maintenance—ensuring it remains a go-to solution for serious Jeep owners.

Why Buy Remanufactured AX15 Transmissions from Fraser Engines?

At Fraser Engines, we supply remanufactured AX15 transmissions that meet or exceed OEM standards. Here’s what sets us apart:

1. Comprehensive Warranty

   • We back every AX15 we remanufacture with an industry-leading warranty, giving you peace of mind and confidence in your purchase.

2. Upgraded Components

   • Our remanufactured AX15 units feature enhanced bearings, seals, and synchronizers designed to boost longevity and performance under demanding conditions.

3. Rigorous Testing

   • Each AX15 goes through intensive functional testing, including gear mesh verification, torque capacity checks, and real-world simulations to ensure optimal performance and reliability.

4. Competitive Pricing & Financing

   • We offer affordable rates and flexible payment options, so you can get the powerful transmission you need without straining your budget.

Signs You May Need an AX15 Transmission Replacement

If you notice any of the following symptoms, it may be time to replace or rebuild your AX15 transmission:

• Grinding or Clashing Gears: Indicates worn synchronizers or internal gear damage.
• Popping Out of Gear: The transmission may struggle to stay in gear, especially under load or acceleration.
• Unusual Noises: Whirring, clunking, or rattling can suggest bearing or gear issues.
• Difficulty Shifting: Hard or slow gear engagement could be a sign of wear in the clutch system or internal transmission components.
• Fluid Leaks: Spotting gear oil under your vehicle may indicate compromised seals or gaskets.

Contact Fraser Engines for AX15 Transmissions

Looking for a remanufactured AX15 transmission? Fraser Engines offers top-quality remanufactured solutions for your Jeep Wrangler, Cherokee, Comanche, or other compatible models. We build each AX15 to deliver the durability and performance your Jeep deserves.

Call Us Today at 800-731-3177 or visit our website to explore our inventory of remanufactured AX15 transmissions.

FAQs About the AX15 Transmission

What vehicles use the AX15 transmission?
The AX15 is commonly found in Jeep Wrangler (YJ & TJ), Cherokee (XJ), and Comanche (MJ) models equipped with the 4.0L inline-six engine, generally from 1989 to 1999.

How much torque can the AX15 handle?
The AX15 is rated to handle up to approximately 300 lb-ft of torque, making it suitable for moderate performance upgrades and off-road applications.

Is the AX15 transmission reliable?
Yes, the AX15 is known for its durability and smooth shifting. Proper maintenance, including regular fluid changes, helps ensure a long service life.

Can I upgrade my AX15 transmission?
Yes, upgrades like reinforced synchronizers, performance clutch kits, and improved lubrication systems can further enhance the AX15’s capability and longevity.

Revitalize your Jeep with a remanufactured AX15 transmission from Fraser Engines—built to excel in daily driving, off-road trails, and everything in between. Contact us now and experience the strength and reliability that your Jeep deserves!