Ford 6.7 DEF Reductant Heater Increased Warranty Coverage

In some cases, there may be a little $1 plastic part that fails. The bad news is that it can’t be replaced. You have to pay for a new reductant heater which can be very expensive. Thankfully, there was a Ford warranty extension

It seems this is the second time they have extended the reductant heater warranty. The first extension ended on Dec. 31, 2018, the second was extended to July 31, 2022, and we are checking to see if there is a 3rd extension.

To learn more about this topic, just continue to read our article. It explores the issue so you have the best information possible. It seems this heater is a part that has chronic failure written all over it. It remains to be seen if yours is covered or not.

Is The DEF Heater Covered Under Warranty?


It may be covered and it may not be covered. For GM DEF systems, some owners think the DEF heater is covered under the powertrain warranty and others think it is covered by the emissions warranty.

Both will have time limits on them so many owners may not be covered due to expiration. The Ford DEF heater warranty is a different issue. We have found that you need to have the dealer run your VIN through the Field service action


The Field Service Action Number:18M01. or you can create an account at Ford Owners and see what it says when you submit your VIN.

2016 Ford 6.7 DEF Reductant Heater Increased Warranty Coverage

We have not found any information if the extended warranty that ended last July has been extended a 3rd time. It seems that it was a confusing extension as the letter most owners received gave two different expiration dates.

On one hand, one letter said it was extended for 11 years or 120,000 miles and the warranty ended in 2018. But most vehicles with that 11-year extension would go beyond 2018.

The second extension said 8 years and 100,000 miles approx. But it ended on July 31, 2022. Many vehicles that were covered would go well beyond 2022 under the terms of the letter.

The good news is that if your vehicle was covered, you saved a lot of money.

2015 F250 DEF Heater Recall


To the best of our knowledge, there has been no recall sent out for this part. We checked several recall websites and it was not listed on any of them. However, if you think there was a recall for this part, you can check Ford’s website.

To get any recall information, you have to put your VIN in the search box on their landing page. You can get to that page by clicking here. That will be the best way to find out if the recall is still valid or not.

Old websites or news may not be very helpful to you.

Ford Code P20BA Recall

Again, there is no information on this topic. There are many complaints about this error code. Many owners are not happy that they have paid so much money for one small part to keep failing.

If you think there was a recall, use the link to Ford in the previous section and put in your VIN, and see what comes up. P20BA is an error code and it is triggered if the following parts fail:

- Faulty Reductant Heater

- Reductant Heater harness is open or shorted

- Reductant Heater circuit poor electrical connection

So there won’t be a recall over an error code.

Ford DEF Reductant Heater Replacement Cost


The first cost will be diagnostics. Dealers and other mechanics may charge anywhere between $75 to $100 per hour to find out which part failed in your DEF system.

The cost to replace the part ranges between $400 and $1000 depending on who is doing the work. If your truck is covered by an extended warranty, you may be billed $800 but what you pay is reduced to $400.

There are a lot of factors involved when it comes to repairing this part.

What Are The Reductant Heater And Sender Assembly?

The reductant heater is a small heater that is used to prevent diesel fuel from freezing in low temperatures. You will find it in the diesel exhaust fluid filter reservoir and/or the reductant injector supply hose.

When you get the P20BA error code, that code is telling you that there is a problem with the Reductant Heater “A” Control Circuit Performance. Diagnosing this problem can be a hassle as you need a different repair manual to find out which part is an “A” circuit.

When you see the code, you can’t delay getting it repaired as you can damage your catalytic converter or other key engine parts.

Reductant Heater And Sender Assembly Repair


The first step in this process is to - “ Check for damaged components and look for broken, bent, pushed out, or corroded connector's pins.”If all is well here, you have a long list of parts to check.

It can be time-consuming which is why the repair costs so much. Once the failed part is located, then you just need the mechanic to replace it for you. There are owners who say that replacing the failed part is not that difficult and you can do it yourself for a lot less.

Some Final Words

As far as we know all extended warranties created by Ford have ended. You are on your own now if this part fails on you. From what we understand, this part is not hard to find in the different auto parts stores.

When you are on your own, expect the repair bill to be quite high unless you do it yourself. According to some owners, the repair is not that hard. The difficult part is finding which part failed on you.

Make sure to have the right repair manuals on hand to save you some time.

Leave a Comment: