Diesel vs Gas Reman Engines

You’ve likely been at the gas station before and noticed special pumps that also dispense diesel fuel. The large majority of vehicles (especially small ones) run on gasoline, but larger autos require diesel to run. What is the difference between these two types of engines? Today, we want to explain a bit about how the engines themselves differ, the pros and cons of each, and how available they are as remanufactured parts.

What's The Difference Between A Gas And Diesel Engine?

Gas and diesel engines are more similar than many people think. Both use internal combustion to convert their respect fuels into energy that can power the vehicle. Both use a 4-stroke system that involves the following:

The Intake Stroke: The piston lowers from the top to the bottom of the chamber to create a low pressure within the cylinder

The Compression Stroke: The piston moves back up, compressing large volumes of oxygen-rich air to prepare for combustion. Either a spark of the compression itself causes combustion

The Power Stroke: The piston moves back down due to the force of the combustion pressures, transferring the power of combustion to the crankshaft

The Exhaust Stroke: The piston travels back up, pushing exhaust gasses out of the cylinder through a valve as it does so

So what exactly is the difference? You’ll notice that in The Compression Stroke it says either a spark or the compression itself will cause combustion. This is the main difference. Gas engines rely on a spark plug to produce a spark that will ignite the air/fuel mixture, whereas diesel engines make so much compressive force that the air/fuel mixture reaches the ignition point without a spark. In addition to this difference, there are other aspects of each engine that are unique as well. Gas engines require a throttle body to help accelerate the car to faster speeds. Diesel engines do not, and simply release more fuel and increase energy production within the usual engine system. This piece (or lack thereof) also affects how the cars can brake. When you lift your foot off the accelerator in a gas-powered vehicle, the throttle body will close, creating a vacuum that reduces output of energy. Diesel engines (without throttle bodies) release excess compressed air through one of the valves that is left unsealed when the accelerator is not being pressed on. If you look at a gas and diesel engine side by side, you’ll notice that there are slight differences, but they largely work the same way. Thanks to the composition of the fuel itself, diesel engines can operate without the use of a spark plug to produce just as much power and energy.

Pros and Cons

There are pros and cons for both diesel and gas engines. Some people feel very strongly that one is better than the other, but we believe they each have their place in the auto industry. 

  • Gas Engine Pros

    • Cheaper fuel

    • Readily available

    • Most common type of engine

    • Quiet

    • Fewer emissions

    • Any auto shop will work on it

    • You can find them easily at salvage yards

  • Diesel Engine Pros

    • Lower revving

    • More fuel-efficient (due to the higher energy in each fuel molecule)

    • More torque at a lower RPM

    • You can go further on one tank

    • Many are turbo charged to make them faster 

    • Becoming more common so prices are dropping

    • The cylinder has a removable liner that lets the engine last much longer

    • Built tougher so they last forever

  • Gas Engine Cons

    • Engines show wear and tear around the 120-150k mile mark and there is no liner to replace

    • They burn through fuel more quickly because gas has 15x less energy than diesel

    • There are extra parts (ie the spark plug) that can break down

  • Diesel Engine Cons

    • Fuel is more expensive

    • Not all mechanics will work on diesel

    • While improving, diesel engines are known for excess pollution

    • Starting up tends to be loud, as does braking

    • Far fewer pumps at gas stations

    • Exhaust can smell pretty bad

Remanufactured Gas and Diesel Engines

You can find remanufactured gas and diesel engines at many salvage yards (like Airline Auto Parts!) or at shops around the country. A remanufactured engine is essentially a Frankenstein engine built from components of used engines that have been dismantled. Each and every component undergoes strict quality testing before they’re used to create a like-new engine. Purchasing a remanufactured engine from a reliable source can save you thousands of dollars without sacrificing any of the quality. Remanufactured engines are built using only the best parts available. By the time they’re done, they’re just as good as a fresh-off-the-line engine from the manufacturer themselves. Both diesel and gas engines can be remanufactured, but gas engines are most common. This is due mainly to the fact that gas engines far outnumber diesel engines in general, and gas-powered vehicles are more likely to succumb to wear and tear and be sent into salvage yards than their diesel counterparts. Don’t worry though, reman powertrain parts only use components that are in near mint condition. Airline Auto Parts has paired with the best reman partners around to ensure that each customer gets the highest-quality part possible. Order a reman engine from us and your vehicle will be back in top shape in no time at all!

If you’re in the market for a remanufactured engine (diesel or gas), check out Airline Auto Parts. We have an ever-changing inventory, and we even place orders for you if we don’t have what you’re looking for. Each and every remanufactured engine comes standard with a 3-year/100k mile warranty so you can feel confident in your purchase. Call us at 281.448.2000 to discuss your reman needs, and explore our entire inventory at https://airlineautoparts.net/. We look forward to working with you!

How Much Do You Know About Powertrain Parts?

It’s no secret that cars and other vehicles are some of the most advanced technologies that people use every day. There are millions of pieces that have to come together to make the vehicle work properly. While each and every component plays a key role in making things operate smoothly, the most important parts of the vehicle (those that make it go) are known as powertrain  parts. You’ve probably heard this term before in ads, commercials, or warranties, but do you know what they are? We’re gonna talk about it today, as well as discuss your options for replacing any powertrain  parts that get damaged.

What Are Powertrain Parts?

The powertrain  is composed of the parts that make the vehicle move. Some people lovingly call them “the go parts.” powertrain  parts are responsible for providing the vehicle with motion. Generally speaking, powertrain parts include:

– The Engine

– The Transmission

– The Front and Rear Drive Systems

– Seals, Gaskets, and Other Internal Parts

– And More


There are far too many individual parts to mention, but these are the major players in the powertrain . By working together, these parts convert gas or diesel fuel into energy which is then used to produce momentum to move the vehicle forwards or backwards. As you would imagine, the powertrain  is one of the key elements of any vehicle, and any problems within it can leave your car useless. Luckily, powertrain parts are often the most well-built, and they’re designed to work hard for years without any issues. Many dealerships and manufacturers offer powertrain  warranties that protect the powertrain  for so many years or miles. It’s a good idea to get a powertrain  Warranty whenever you can because they’re some of the most expensive parts to repair or replace out of pocket. 

Why Are They Talked About So Often?

What is all the hype about powertrain  parts? As we said, the powertrain  is arguably the most important system within a vehicle. If just one part of the complex chain reaction goes awry, your car might not start, run, or function as intended. Powertrain  parts need to be inspected regularly to make sure everything is in working order. The last thing you need is an engine failure in the middle of a highway! The safety and reliability of powertrain  parts is directly correlated to the safety of the vehicle and the passengers in it. There is a significant emphasis on these parts because manufacturers and dealerships understand how crucial it is to keep these things running smoothly. When consumers look to purchase a new vehicle, they want to hear about the powertrain  to make sure it’s top-of-the-line, reliable, and backed by a significant warranty. 


     The powertrain  is truly the power behind the vehicle, so it’s constantly being revamped to make it bigger, better, faster, and stronger. Powertrain  is particularly important to pickup truck enthusiasts as the strength of the truck determines towing capabilities, weight capacity, off road ability, and more. Showcasing the powertrain  has become a staple practice in the marketing of vehicles to show consumers that they can trust the durability and performance of Car A over Car B. As for why you so often hear about powertrain  warranties, it’s because they’re a huge selling point for buyers. If you know that this system of parts is critical to performance and also very expensive, you’ll be looking for a warranty that will cover the costs should anything happen. These warranties help to make the purchase decision easier and alleviate buyer’s remorse.

Used, Remanufactured, & New Powertrain Parts

As with all car parts, there are several options available to you when you’re looking to replace aspects of the powertrain .


Used: You can find used engines, transmissions, etc at just about any auto salvage yard you visit. However, we do not recommend going this route for replacement parts. Used parts are taken as-is from one vehicle and sold to consumers to be used in another vehicle. They come fully equipped with wear and tear, damage, and internal problems that you wouldn’t be able to spot just by looking. Yes, you will save potentially thousands of dollars, but the powertrain  is not a part of the vehicle you want to take a gamble on. You might get a few good years out of your used parts, but they will break down eventually. 

Remanufactured: Our suggestion to customers is always to go for remanufactured powertrain  parts. Remanufacturing involves taking apart used car parts and separating them into each individual component. From there, everything is combed through by both human employees and high-tech robots and scanners to find any form of abnormality, crack, or other problem. Only the parts that are 100% like-new make it to the next step. Once there are enough components to make a complete part, the remanufactured engine or transmission is put together. It’s a Frankenstein part of sorts, but is guaranteed to use only components that are in mint condition. You’ll save hundreds or thousands of dollars by purchasing a remanufactured powertrain part, but you won’t lose any of the quality. It’s essentially a brand-new part and they often undergo more quality checks than fresh-off-the-line engines and transmissions do! Airline Auto Parts is proud to offer the best powertrain  parts possible for all types of vehicles. Our reman partners don’t cut corners to ensure that you get the safe and like-new reman parts you deserve.


New: Of course, you can always opt to purchase new powertrain parts, but be prepared to spend a pretty penny. Certain powertrain warranties will guarantee a new replacement if anything goes wrong, but others will not. Each company or salvage yard is different, so be sure to read the fine print. New powertrain parts aren’t any better than remanufactured engines and transmissions, and they cost exponentially more. When given the choice, choose reman!

If you’re looking for the best remanufactured powertrain parts in the US, look no further than Airline Auto Parts. Our reman partners are the best at what they do, following rigorous safety protocols and checking quality throughout the process. You can find remanufactured engines, transmissions, and more for any vehicle! You’ll save hundreds or thousands of dollars without losing any of the safety or reliability of the parts. Check out https://airlineautoparts.net/ to see the countless other parts we offer, and reach out to us for order requests at https://airlineautoparts.net/contactus/ or give us a call at 281.448.2000. We look forward to speaking with you!

A Comparison Between Engines and Transmissions

Vehicles are extremely complex machines filled with technology and model-specific parts. We all know that cars need an engine to run, but did you also know about the transmission? If you’re not really into cars, you may not be totally clear with what each of these two major components do. Airline Auto Parts remanufactures both engines and transmissions and our team is well-versed in what each is used for. Today, let’s break it down to make these complex auto parts easier to understand.

What Are Engines?

The engine is the heart of your car. Without an engine, the vehicle will not have power and you won’t be able to go anywhere. There are hundreds or thousands of components in each car engine, with different brands and sizes featuring unique designs and technology. The main goal of the engine is to take the heat from burning gas and convert it into energy to power the car. To achieve this, a very intricate chain of events takes place every second. The engine has to work very hard to do its job, so all of the components need to be heavy duty and able to withstand constant wear and tear. Engines come in a variety of styles including Straight, Inline, Flat, V, Twin Cylinders, Four Cylinders, 5 Cylinders, 6 Cylinders and 8+ Cylinders. Each offers different levels of power and are suitable for different vehicle types. Many engines use gasoline, but others (typically in trucks) use diesel fuel. Engines are extremely heavy and durable and require professional installation. There are dozens of connections involved and each must be perfect to avoid potential problems. Components include (but are not limited to):

– The Engine Block
– Pistons
– Cylinder Heads
– Camshaft
– Valves
– Crankshaft
– Timing Belt/Chain
– And More!

What Is A Transmission?

The transmission of a car moves the energy created by the engine to the wheels. It’s the portion of the vehicle that allows the car to move. Transmissions increase torque to accelerate away from a stop, or to prevent the engine from overworking at high speeds. Transmissions can be automatic or manual which shift gears automatically and with a gear shift respectively. The first cars had manual transmissions before the technology for automatic shifting came to market. Manual transmissions have a clutch pedal and a shifter the driver uses to manually change gears. These types of transmissions consist of a set of gears along a pair of shafts, called the input and output shafts. Automatic transmissions typically don’t use clutches. Instead, the automatic transmission relies on a torque converter to change gears. As you might imagine, the transmission is a series of gears of various sizes that work differently depending on the speed you’re traveling. Without the transmission, the energy created by the engine would have nowhere to go, and the car wouldn’t be able to move. Components include (but are not limited to):

– Torque Converter

– Oil Pump

– Planetary Gear Set

– Clutch Packs

– Output Shaft

– Brake Band

– Oil Pan

– Transfer Case

– And More!

What Does Remanufactured Mean?

As we mentioned in the intro, Airline Auto Parts remanufactures both engines and transmissions for nearly any vehicle you can imagine. The single factor that separates a great powertrain remanufacturer from a merely good one is manufacturing technology. Our reman partner has spared no expense in this important area. Simply put, if you want to see the highest technology equipment, the most intelligent engineering and the best practices in powertrain remanufacturing today, all you need to do is visit one of our remanufacturing partner’s plants where hundreds of reliable powertrain components are remanufactured per day. Powertrain refers to all of the components of a vehicle that propels a car including the engine, the transmission, axels, and wheels. Each remanufactured engine or transmission you purchase through Airline Auto Parts comes with a 3-year/100k mile warranty. Every single component is tested with high-tech quality control equipment that can identify any sort of weakness. As a result, the finished remanufactured engine or transmission will be the same quality as newly-manufactured counterparts and you can get them for a fraction of the price.

This is just a very brief overview of what engines and transmissions do for cars. To go over each different type and component would take many articles, so we’ll leave it at this for now. Remanufactured engines and transmissions will save you hundred of dollars for brand-new-quality performance. Visit our site to search for parts by vehicle and type. If you can’t find what you’re looking for, we can order it for you from one of our partner salvage yards. Remanufactured transmissions and engines are some of our best sellers, so they cycle through our inventory quickly. We’ll ship your part to you or to the shop you plan to have install it. We even partner with select shops across the country! Every part comes with a 6-month warranty with plenty of upgrade options available, and all remanufactured powertrain parts are protected for 3-years or 100,000 miles. Visit https://airlineautoparts.net/ to learn more or contact us at  281.448.2000. We look forward to serving you!

Upgrade Your Warranty To Stay Covered Longer!

There’s a common misconception about salvage yards that their auto parts are old and unreliable. While that is the sad reality in some cases, it’s not at Airline Auto Parts! All of our parts must pass a rigorous inspection process to ensure they are in perfect condition. We don’t believe in selling auto parts that are “acceptable” or even “good.” If there’s any wear and tear, it’s not good enough for us, especially in our remanufactured engines and transmissions. We are so confident in our products that we have a 6-month part-only warranty for each and every part sold. We didn’t stop there! We offer upgrades that will provide even more protection and peace of mind.

For an extra 10%, you’ll be upgraded to our Silver Warranty. This is a parts-only warranty and it’s good for an entire year! If at month 11 your part fails, it’s under warranty and we’ll replace it for you. The Silver Warranty applies for all parts and is one of our best-selling upgrades.

If our Silver Warranty isn’t enough, we have four other levels to choose from!

Silver+: 18 months parts-only (20%)

Gold: 12 months parts and labor (30%)

Gold+: 24 months parts and labor (40%)

Platinum: 36 months parts and labor (50%)

Choose the one that works best for you based on what parts you order. Spending just a little extra now can save you hundreds or thousands later if anything goes wrong.

Generally speaking, customers who purchase more expensive (or a larger quantity of) parts opt for the higher-level warranties. This is a great safeguard to make sure you get the best value for what you spend. Remanufactured engines and transmissions are great candidates for better warranties because of the many moving parts needed to make one final product. Though we go through our parts with a fine-tooth comb, things can still go wrong. Because we are so committed to providing the highest-quality used, refurbished, and remanufactured auto parts, we have no problem backing each purchase with a warranty. We want you to be confident in your decision to work with us, so we offer risk-free purchases thanks to our warranties.

Salvage yards are notorious for reselling seedy parts that break down. Airline Auto Parts seeks to change that misconception by selling only the best of the best. We stock parts from nearly all makes and models you can think of, and if we don’t have it in stock, we can order it for you from a partner yard. Our website allows you to search for exact parts by vehicle, and our inventory updates all the time. Every part we have available for purchase has been quality tested by our team and must check off all the boxes for safety, condition, and function.

We take great pride in our remanufactured engines and transmissions. They are some of our best-sellers because we restore them to like-new quality. Each and every component is carefully inspected before used in construction so that they don’t fail later. Our warranties will cover the cost of parts, and the higher tiers cover labor costs as well. What’s not to love? Head over to https://airlineautoparts.net/ to search for parts. Check back often for new items in stock! We look forward to hearing from you!