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An automotive factory warranty usually consists of a bumper-to-bumper warranty and a powertrain warranty plus some other coverages. So, just what does a powertrain warranty cover?

Today, we will discuss the ins and outs of powertrain warranties. When you have all the details, you can decide whether you need any additional protection for your vehicle.


In this article:

What Is Considered The Powertrain On A Vehicle?

A car's powertrain consists of the parts that provide the mechanical energy that moves the car forward. These components include the engine, cylinder block, transmission, driveshafts, transfer case for all-wheel and four-wheel-drive vehicles, supercharger, turbocharger, and differentials.

The powertrain also includes the internal parts of the engine, such as the crankshaft, pistons, timing belt and gears, gaskets, intake and exhaust valves, and the oil pump. 

The powertrain is essential for the proper functioning of your vehicle, which has a lot of moving parts – parts that, eventually, could just decide to stop working. That’s where a powertrain warranty can be useful.

What Does A Powertrain Warranty Cover?

A powertrain warranty is a type of limited warranty that covers the cost of repairing or replacing parts of the powertrain, such as the engine, drivetrain, and transmission. The warranty can protect you from costly repairs, as the components of the powertrain are often the most expensive to fix.

It should be noted that the powertrain warranty does not cover so-called "wear items" that are designed to wear and tear over time. This includes parts like the battery, clutch, wheel bearings, CV joints, and certain drive belts and fluids.

Powertrain Warranty Vs Drivetrain Warranty

While a powertrain warranty covers all parts of the vehicle's powertrain, such as the engine, drivetrain, and transmission, a drivetrain warranty only covers the drivetrain. That means that it only covers the components that are responsible for delivering power to the driving wheels, such as the:

  • Torque converter
  • Propeller shaft
  • U-joint
  • Rear-axle
  • Spool
  • Differential

In common practice, powertrain and drivetrain warranties mean the same thing, since the drivetrain is part of the powertrain. Most factory warranties include the engine in this level of coverage, which makes them powertrain warranties.

Powertrain Warranty Vs Bumper-To-Bumper Warranty

A powertrain warranty covers only the powertrain, while a bumper-to-bumper warranty covers almost every non-powertrain component from the front bumper to the rear bumper. What exactly is covered by a bumper-to-bumper warranty can differ from provider to provider, so make sure to read the fine print and exclusions.

Contrary to a powertrain warranty which usually outlines the specific components that are covered, a bumper-to-bumper warranty will include a list of exclusions. Generally, a bumper-to-bumper warranty also excludes wear items, such as tires, brake pads, and windshield wipers, and routine maintenance like oil changes and tire rotations.

How Long Does A Powertrain Warranty Last?

Powertrain warranty term lengths vary widely by provider. If you purchase a new vehicle with a powertrain warranty, some of the best manufacturers offer coverage for 10 years or 100,000 miles, whichever comes first. Other automakers may only offer 5 years/60,000 miles. Here are 11 car manufacturers ranked by their 2022 powertrain warranty length:

New Car Warranty Powertrain
1. Hyundai 10 years/100,000 miles
2. Kia 10 years/100,000 miles
3. Genesis 10 years/100,000 miles
5. Mitsubishi 10 years/100,000 miles
6. Tesla 8 years/mileage varies by model
7. Acura 6 years/70,000 miles
8. Cadillac 6 years/70,000 miles
9. Lexus 6 years/70,000 miles
10. Infiniti 6 years/70,000 miles
11. Lincoln 6 years/70,000 miles

Other manufacturers offer 5 years/60,000 miles for their powertrain warranties, including Ford, Dodge, Chevrolet, Chrysler, Honda, Subaru, and more. Check out our car warranties comparison guide to see bumper-to-bumper and powertrain warranties for more companies.

Once the manufacturer's powertrain warranty expires, you are responsible for the costs of repairs, unless you decide to purchase an extended warranty. If you choose to purchase an extended car warranty, your powertrain warranty coverage will be extended for several years, though the exact coverage length will depend on your warranty plan.

Why You Might Need An Extended Warranty

For many car owners, purchasing an extended warranty can provide peace of mind. Even if you have factory powertrain coverage, it’s only a matter of time until your warranty expires, leaving you responsible for any repair bills. When you consider the average costs of powertrain parts, that peace of mind alone might be worth it.

Powertrain Component Average Cost*
Timing Chain Replacement $1,266–$1,871
Oil Pan Replacement $728–$956
Water Pump Replacement $301–$653
Engine Control Module $919–$1,076
Transfer Case Replacement $2,466–$2,884
Transmission Mount Replacement $139–$267
Axle Shaft Replacement $485– $607
Axle Seal Replacement $158–$326

*based on


If you’re just looking for protection for essential components like the engine, then you should consider an extended powertrain warranty. If you want full coverage for your vehicle, an extended warranty that includes both bumper-to-bumper and powertrain coverage is your best bet. 

Where Can You Purchase An Extended Warranty?

Extended warranties can be purchased either directly from your automobile manufacturer or from a third-party provider like Endurance, CARCHEX, or CarShield.

Each option has its advantages and disadvantages. If you have a lot of brand loyalty and feel most comfortable signing a contract with your favorite car brand, then that’s probably the best choice for you.

However, manufacturer warranties usually have stricter requirements on where you can service your vehicle – usually, it’s only in manufacturer dealerships and service centers. You may also have to purchase your extended warranty at the time you purchase your vehicle.

Aftermarket warranty providers, on the other hand, generally let you service your vehicle at whatever in-network shop you like, giving you a lot more flexibility. Many plans also come with benefits like towing, roadside assistance, trip interruption, and rental car coverage.

Top Extended Powertrain Warranty Providers

Let’s take a look at some of the top third-party extended warranty providers. When we recently reviewed the best extended car warranty companies in the industry, these were the three that performed best in categories like reputation, coverage, customer experience, and cost.


Endurance: Best Coverage

Endurance is a direct provider, which means there’s no middleman involved. If you choose to work with Endurance, you will deal with them every time including during the claims process. That means your claims experience may go by more quickly than with another company.

While Endurance offers six levels of extended car warranty coverage, if you’re looking for powertrain coverage only, Select Premier is the best choice for you. You may also want to consider the Secure plan if you are looking for a little more coverage than just the powertrain warranty. Endurance can cover vehicles for 250,000+ miles on the odometer.

Read about the cost and coverage options in our Endurance review.

CARCHEX: Best For Used Cars

CARCHEX is often considered the gold standard of service for extended warranty providers. The company has endorsements from brands like Kelley Blue Book, Carfax, and

If you are looking for a powertrain warranty, we recommend the Bronze plan, which covers common and expensive repairs. To learn more about their additional four plans, read our CARCHEX review.

Protect My Car: Best Maintenance Benefits

Of all the extended car warranty providers we researched, Protect My Car had the best routine maintenance perks. The company also has low deductibles and claims are usually paid directly to the repair shop, saving you some time and hassle. Plus, it offers flexible payment terms for service contracts and a 30-day money-back guarantee on all of its plans.

The warranty plan that covers most parts of the powertrain is the Driveline plan, which is one of three levels of coverage that Protect My Car offers. Read our Protect My Car review to learn more.

FAQ About Powertrain Warranties

What is covered under a powertrain warranty?

A powertrain warranty covers major components like the engine, transmission, drive axle, and turbocharger if applicable. These are the parts that power the car forward, and they can be expensive to repair.

What isn't covered under a powertrain warranty?

A powertrain warranty excludes every repair not associated with the engine, transmission, drive axle, turbocharger, or other parts that power the wheels. So, it excludes cosmetic items, electrical parts, air conditioning, steering, brakes, suspension, cooling system, fuel system, and more.

Does a powertrain warranty cover an alternator?

A powertrain warranty does not usually cover the alternator. The alternator is an electrical component that transfers mechanical energy from the engine into electrical energy. It’s covered under bumper-to-bumper comprehensive warranties and most mid-range extended warranties that include electrical components.

How important is a powertrain warranty?

The parts a powertrain warranty covers are vital to your vehicle, but they don’t usually wear out while the factory warranty is in place. That’s why it’s more important to cover these components at 100,000 miles and beyond.

Who has a 10-year powertrain warranty?

Kia, Mitsubishi, Genesis, and Hyundai all offer 10 year/100,000-mile powertrain warranties. However, these warranties only apply to the original owner. Secondary owners get 5 years/60,000 miles of powertrain warranty coverage only.


In an effort to provide accurate and unbiased information to consumers, our expert review team collects data from dozens of extended auto warranty companies to formulate rankings of the best providers. Companies receive a score in each of the following categories, as well as an overall weighted score out of 5.0 stars.

  • Industry Standing: Warranty providers with a history of strong business practices and endorsements from experts receive the highest scores in this category.
  • Coverage: This rating is based on types of extended warranty plans available, coverage terms, and added benefits like roadside assistance.
  • Cost: Our research team reviews sample quotes for a variety of plans and vehicles. Companies with lower prices per year of coverage receive the best scores.
  • Transparency: This score takes into account contract transparency and the availability of a money-back guarantee.
  • Customer Service: We comb through customer reviews and perform our own shopper analysis to get a sense of the responsiveness and helpfulness of each warranty company.

Read our guides to other warranty providers: