Remanufactured Jeep Transmissions Built for the Trail and the Daily Grind

Whether it’s a Grand Cherokee with a tired 545RFE or a Wrangler with shifting issues, Jeep transmissions are no strangers to real-world wear. When it fails, your shop needs more than a patch job.

At ACE, we reman Jeep transmissions with the known fixes already installed — dyno tested, upgraded, and ready to go. Our units are engineered for trail use, towing, and everyday drivability.

Jeep Transmission Failures You See Every Week

  • 545RFE harsh 2-3 shifts or gear-hunting under load
  • 45RFE or 68RFE valve body issues and solenoid faults (Wrangler, Liberty)
  • 8HP45 shudder and TCC slip in newer Grand Cherokees
  • Fluid contamination from off-road use or overheating in towing applications

We know the platforms, we’ve seen the failure patterns — and we’ve already built in the solutions.

What You Get with an ACE Jeep Reman Unit

  • 🔧 Fully remanufactured with all wear components replaced
  • 🥪 Dyno tested to verify shift quality and pressure consistency
  • 🚛 Updated with hard part fixes and OE design improvements
  • 📂 Included with Mobil 1 synthetic fluid
  • 📦 Same-day shipping on most Jeep models
  • 🛡️ 3-year / unlimited mileage warranty standard

Jeep Models We Commonly Support

Our reman transmissions are ready to install in these popular Jeep platforms:

  • Grand Cherokee (62TE, 545RFE, 8HP45)
  • Wrangler / Gladiator (42RLE, 45RFE, 8HP)
  • Cherokee / Compass / Patriot (62TE, 9-speed variants)
  • Commander / Liberty (545RFE, 45RFE)

Don’t see your model? Contact our team — we’ll verify compatibility fast.

Why Jeep Shops and 4×4 Techs Trust ACE

  • ✅ Built to last — no shortcuts on hard-use builds
  • ⏱️ Save 4–8 hours vs. rebuilding on the bench
  • 💬 Live support when you need help mid-install
  • 🔁 Transferable warranty adds value for resale
  • 💲 18-month option available for budget-conscious repairs

Proven in Shops. Backed Coast-to-Coast.

  • ✔️ 3-Year / Unlimited Mileage Warranty
  • ✔️ Parts, labor, shipping, and Mobil 1 fluid included
  • ✔️ Nationwide warranty coverage for your customers
  • 💲 Fleet pricing & 18-month warranty available

Get Your Jeep Build Shipped Today

👉 Request a fast quote
👉 Talk to a real tech
👉 Most Jeep units ship same-day

From the job site to the trailhead — ACE builds Jeep transmissions your shop can trust.

Frequently Asked Questions

We stock and build a range of remanufactured Jeep transmissions, including popular units like the 545RFE, 45RFE, and 8HP45. Whether it’s for a Wrangler, Grand Cherokee, Liberty, or Commander, each transmission is fully remanufactured and tested to address known Jeep-specific failure points. If you’re unsure which unit you need, we’ll help you match it to the VIN or transmission tag.

Yes—ACE remanufactured automatic transmissions come as full assemblies. That means each transmission assembly includes the torque converter, updated valve body, and critical hard parts already installed. No need to track down extra components or transfer items from the core.

Every ACE build includes replacement parts like re-machined valve bodies, new seals and bushings, and updated electronics when needed. These aren’t partial patch jobs—they’re full solutions. Our techs have deep experience with transmissions Jeep platforms rely on, and we build them for long-term performance.

Yes—but with ACE, you don’t have to pay the core deposit up front. The deposit is billed to your account and only becomes due if the core isn’t returned within 120 days. That gives your shop time to complete the install and manage the return without tying up cash.As long as the core is returned in rebuildable condition within the timeframe, there’s no charge. It’s a straightforward process designed to keep your costs low and your workflow moving—no surprises, no stress.

Definitely. Our builds are installer-friendly and tested under load before they leave the shop. We know what to look for—especially in tricky platforms like the Wrangler or older Dodge transmissions that share architecture. Our process helps reduce install time and limits the need for rework.

Many Jeep platforms use a transfer case, especially in 4WD or off-road setups. While we don’t reman transfer cases themselves, our units are compatible and built with the correct output shafts and sealing surfaces for seamless mating. If you’re servicing a Wrangler remanufactured setup or a 4WD Grand Cherokee, just confirm your specs with us.

Our standard warranty covers 3 years with unlimited mileage—including labor, shipping, and Mobil 1 fluid. If you’re the installer, that means protection for your shop and confidence for your customer.