Moon Auto Parts LLC
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Used Kia Engines for Sale — Grade A, VIN-Matched & Warranted

Moon Auto Parts has a lot of used Kia engines for sale. They have engines for all the Kia models, like the Sorento, Sportage, Telluride, Optima, K5, Stinger, Soul, Forte, Seltos, Carnival, Cadenza, Sedona, Rio, and K900. Kia is part of the Hyundai Motor Group, so they use the same engine parts as Hyundai in many cases. This means Moon Auto Parts has a lot of Kia engines to choose from. Every used Kia engine comes from a car that did not have a lot of miles on it. Their technicians check the engines to make sure they work properly. They also make sure that the engine is the one for your car.

Moon Auto Parts gives a 4-year or 40,000-mile warranty on every used Kia engine they sell. You do not have to pay extra for it. They also ship the engines to addresses for free, and you do not have to give them your old engine in return.

Kia Engine Families — Theta II 2.4L, Lambda V6, Gamma 1.6T & Smartstream

Theta II 2.4L GDI — Sorento, Optima & Sportage

The Theta II 2.4L GDI four-cylinder engine is the Kia engine that people want the most. This Theta II engine is used in the Sorento, the Optima, and the Sportage. These cars were made from 2011 to 2019. The Theta II engine produces 185 to 192 horsepower. The Theta II engine has a problem with the connecting rod bearing. This problem is also found in Hyundai engines. The problem is caused by pieces of metal that get into the engine during manufacturing. This issue led to a settlement, and people who own these vehicles got their warranties extended.

Moon Auto Parts looks at the Theta II engines that were made after the recall. We check to see if any repairs were made to these engines. If you are looking for a used Kia Sorento engine or a used Kia Sportage engine, we have the Theta II engine in stock. We know the history of these engines. We take that into account when we sell them.

Lambda 3.3L and 3.5L V6—Telluride, Sorento & Cadenza

The Lambda V6 engine is used in the Telluride, Sorento V6, Cadenza, and K900. The Lambda V6 engine comes in two sizes, the 3.3L and the 3.5L. The Lambda V6 engine produces a lot of power. It makes 290 to 365 horsepower.

The Lambda V6 engine is very reliable. You can easily find a good one that has not been used much. The Lambda V6 engine is also used by Hyundai in the Palisade, Santa Fe, and Azera. This means that there are a lot of Lambda V6 engines, so the price is competitive. We have a lot of Lambda V6 engines in stock.

Smartstream 2.5L Turbo — Stinger & K5 GT

The Smartstream 2.5L turbocharged engine is used in the Kia Stinger GT and K5 GT-Line. It makes 290 horsepower. We have a Kia Stinger engine for sale. This engine is one of our performance Kia units. It comes from mileage-verified donors. The Kia Stinger is built for performance, so we make sure our engines are reliable.

Gamma 1.6L Turbo — Forte GT & Soul Turbo

The Gamma 1.6L turbocharged engine is used in the Forte GT and Soul Turbo. It makes 201 horsepower. These small turbocharged engines come from low-mileage cars. Are a good deal for people who own a Forte or Soul and need to replace the engine.

Buy a Low-Mileage Kia Engine Online — VIN Verified & Warranted

When you need to replace the Kia engine, you have to make sure you get the Theta II variant. The production date and service completion status are very important for Kia cars from 2011 to 2019. If you buy a Kia engine from Moon Auto Parts, we will check a few things before we send it to you. We will check the engine code and the Theta II production date. If it is GDI or MPI. We also check the emissions specification. We do all of this to make sure you get the Kia engine.

All of our Kia engines have low mileage, and we have documents to prove it. We get our Kia engines from trusted sources. We know the history of each one. If you buy a Kia engine from us that has a warranty, you get a 4-year or 40,000-mile warranty at no extra cost. You do not have to pay to return the engine, and we will ship the new one to you for free if you have a commercial address.


We also have used Kia transmissions. We get these transmissions from trusted sources, such as our Kia engines. You can call us at +1(888) 777-0769 to ask about Kia engines and transmissions. We are open Monday through Friday from 9 AM to 7 PM CST.

Why Choose Us

People Also Ask

e stock used Kia engines for all major models including the Sorento, Sportage, Telluride, Optima, K5, Stinger, Soul, Forte, Seltos, Carnival, Cadenza, and Rio. Engine families include the Theta II 2.4L GDI, Lambda 3.3L/3.5L V6, Smartstream 2.5T, and Gamma 1.6T. Call (888) 777-0769 to confirm availability for your specific model and year.
The Theta II 2.4L GDI engine fitted to the 2011 to 2019 Sorento, Optima, and Sportage has a documented connecting rod bearing failure issue shared with Hyundai. Symptoms include engine knocking, loss of power, and in severe cases engine seizure or fire risk. Kia extended warranty coverage on affected models as part of a class action settlement. Moon Auto Parts sources Theta II replacement units from verified post-recall production donors with documented mileage.
es. Kia and Hyundai are sister brands under Hyundai Motor Group and share multiple engine families including the Theta II 2.4L GDI, Lambda 3.3L/3.5L V6, Nu 2.0L, and Gamma 1.6L. While base engine architecture is shared, sensor configurations and ECU calibrations differ between brands. Always provide your full VIN to confirm the exact specification for your Kia before ordering.
Used Kia Theta II 2.4L engines for the Sorento and Sportage are priced significantly below dealer replacement cost, which typically runs $2,500 to $4,500. Call (888) 777-0769 for current pricing. All units include free commercial shipping and the 4-year / 40,000-mile warranty at no extra cost — no core charge required.
Yes. Every used Kia engine — from the Theta II Sorento unit to the Lambda V6 Telluride engine — is covered by our 4-year / 40,000-mile warranty at no extra cost. This is Moon Auto Parts' own warranty covering major internal components from the installation date. Full terms are provided in writing before purchase.
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