Used Transmissions with Warranty — What Is Actually Covered
Every used transmission we sell carries a written replacement and return warranty: 3 months on units from 1991 to 2000, 6 months on 2001 and newer, extendable to 3 years. Shipping on approved warranty returns is paid by us. Labour is not included.
That last sentence is the one most suppliers leave out, so we are leading with it. Almost no used-parts warranty in this industry covers labour, and a buyer who finds that out after the gearbox is already on the lift has been badly served. Here is the whole picture, including the parts that are not in our favour.
The terms in full
| Covered | |
|---|---|
| 1991–2000 units | 3-month replacement and return warranty |
| 2001–2025 units | 6-month replacement and return warranty |
| Extended coverage | Up to 3 years, with a diagnostic report supporting the claim |
| Return shipping on an approved claim | Paid by us |
| Physical damage on arrival | Report within 7 days of delivery |
| Problems found during installation | Report within 30 days of delivery |
| Labour, towing, transport | Not covered unless agreed separately in writing |
| Electrical and electronic faults | Not covered |
What will void it — read this before the gearbox goes in
These are not small print traps. They are the five things that actually cause a used transmission to fail early, and a claim to be refused:
- Fit a new filter, pan gasket and front seal. Reusing the old ones is the most common cause of a leak that gets blamed on the unit.
- Seat the torque converter fully. A converter that is not properly seated destroys the pump on first start. This single mistake ends more used transmissions than any manufacturing fault.
- Flush the cooler and the lines. Debris from the failed unit is still sitting in the cooler. Fit a replacement without flushing and it goes straight into the new one.
- Clear the existing error codes before installation, and keep a record of any new ones afterwards. Those records are what support a claim.
- Reprogram the TCU or ECU where the vehicle requires it. Many later vehicles will not shift correctly until this is done, and the symptom looks exactly like a faulty transmission.
Keep the receipts for the filter, the gasket, the fluid and the flush. A claim supported by paperwork is a claim that gets approved.
If it is a CVT, there are three more
- Fit a new transmission controller. A CVT paired with the old controller will not learn correctly.
- Use OEM fluid only. A Nissan CVT needs genuine Nissan NS-2 or NS-3. Generic fluid has a different friction characteristic and will destroy the belt.
- Follow the manufacturer's initialisation procedure, including any TCM reprogramming.
How to compare any supplier's transmission warranty
Five questions. Ask them of us and of everyone else, and the answers will separate the sellers quickly:
- How long, and does the length change with the unit's age? Many suppliers quote their best number and apply a shorter one to older stock.
- Is it replacement, refund, or repair? They are very different promises.
- Who pays return freight on an approved claim? On a transmission this is a meaningful sum.
- Is labour included? Usually it is not. Ask anyway, and get the answer in writing.
- What is required at installation to keep it valid? If the supplier cannot tell you, the terms will be used against you later.
Before you buy anything, check you are not already covered
We would rather lose the sale than sell you a transmission the manufacturer owes you. Several have extended coverage that owners are never told about:
- Ford DPS6 PowerShift (2012–2018 Focus and Fiesta) — US class action settled and warranty extended.
- Nissan CVTs — coverage extended to 10 years or 120,000 miles on a number of build ranges.
- Honda five-speed automatics on certain 1999–2004 models — extended at the time.
- Chrysler RE-series — not a warranty matter, but a vehicle stuck in second gear with no reverse is usually a governor pressure solenoid and transducer, two inexpensive parts rather than a transmission. Have that checked first.
Check your own VIN against the open recalls before you spend anything.
What backs the warranty
A warranty is only as good as the testing behind it. Every transmission here is pressure tested with the solenoid readings recorded and the fluid inspected before it is listed, and the test sheet ships in the box. The unit is matched to your VIN and option or RPO code before the order is picked — that code, not the engine size, is what identifies a transmission. We hold 14,814 used transmissions across 35 model-specific ranges, and freight is free anywhere in the lower 48.
Browse used transmissions by vehicle model, or read the full transmission warranty policy.
Frequently asked questions
What warranty comes with a used transmission?
At Fusion Used Engines, a written replacement and return warranty: 3 months on units from 1991 to 2000 and 6 months on 2001 and newer, extendable to up to 3 years with a diagnostic report supporting the claim. Shipping on approved warranty returns is paid by us. Labour, towing and transport are not covered unless agreed separately in writing.
Does a used transmission warranty cover labour?
Ours does not, and almost no used-parts warranty in this industry does. Labour is only covered where it is explicitly agreed in writing or bought as a separate paid agreement. Ask any supplier this question directly and get the answer in writing, because labour on a transmission replacement is frequently more than the part.
What voids a used transmission warranty?
Not fitting a new filter, pan gasket and front seal; not seating the torque converter fully; not flushing the cooler and lines before filling; not reprogramming the TCU or ECU where the vehicle requires it; using non-OEM fluid; and any overheating or lubrication damage. On a CVT, also not fitting a new transmission controller. Keep receipts for the parts, the fluid and the flush, because a documented installation is what gets a claim approved.
How long do I have to report a problem?
Physical damage or visible issues must be reported within 7 days of delivery. Problems identified during or immediately after installation must be reported within 30 days of delivery. After that, claims within the warranty period need a diagnostic report.
Who pays return shipping on a warranty claim?
We do, on any approved warranty claim. The transmission does need to be inspected while installed in the vehicle before a return is authorised, which is how the claim is verified.
How do I compare transmission warranties between suppliers?
Ask five things: how long the cover runs and whether the length changes with the unit's age; whether it is replacement, refund or repair; who pays return freight on an approved claim; whether labour is included; and what is required at installation to keep the warranty valid. A supplier who cannot answer the last one will use those terms against you later.