Used Trucks Dealer Offer now Affordable Heavy-duty Semi-Tractors for Sale in Houston, TX

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Buy Used Diesel Engines, Blocks, and Heads for  International, Peterbilt, Kenworth Volvo

  • Cummins engines ISX 15¬† 550 hp for sale
  • Caterpillar engines C12, C13, C15 for sale
  • Detroit engines DD4, DD5 for sale

Heavy-Duty Engines for sales

Truck categorization is based on the Gross Vehicle Weight Rating (GVWR). The GVWR designates the most truck weight which includes the truck’s weight. A  cargo weight, the fuel, and even the passengers. This categorization regulates safety in addition to contributing to commercial classifications. It is also put into consideration when registering vehicles.

Heavy-duty vehicles are vehicles with gross vehicle weight rating (GVWR) of above 8,500 lbs.  Generally and in some jurisdictions, they can be above 14,000 lbs. Diesel engines used in these vehicles are further sub-divided into classes using GVWR:

‚Äʬ†¬† ¬†Light heavy-duty diesel engines (LHDDE) 8,500 – 19,500 lbs.

‚Äʬ†¬† ¬†Medium heavy-duty diesel engines (MHDDE) 19,500 – 33,000 lbs.

‚Äʬ†¬† ¬†Heavy heavy-duty diesel engines (HHDDE) are above 33,000 lbs.

Truck categories begin from Class 1 ‚Äď 8. Classes 1 – 3 are typically non-commercial vehicles. ¬†While class 4 ‚Äď 6 are light and medium heavy-duty engines ranging between 14,000 ‚Äď 26,000 lbs.

Class 7 engines range between 26,001 – 33,000 lbs with three or more axles. They include street sweepers, most city transit buses, and garbage trucks.

Class 8 category applies to huge trucks with GVWRs over 33,001. These vehicles are sometimes called ‚Äúsevere duty,‚ÄĚ. ¬†This Class¬†includes cement trucks, Freightliners, Kenworths, and Peterbilts.

18 wheelers or semi-trucks parts are also in this category. All these trucks, in general, use some popular heavy-duty engines.

Engine Detroit DD4
The Detroit DD4 is a 4 stroke diesel engine first produced in 1987. It was among the first production engines to have integrated electronic controls. Commonly referred to as “drive-by-wire” electronic controls. It also differed from most engines at that time because it used an overhead camshaft. By 1993, it was popular on many USA buses. It was more fuel-efficient compared to other heavy-duty engines. Soon became the best selling heavy-duty diesel engine in the Class 8 truck market. Like used truck dealer Houston TX.

Detroit DD5 is a 5-liter engine first unveiled at the NTEA Work Truck Show in Indianapolis in 2016. The Detroit DD5 is a medium-duty engine available in the Freightliner Class 5/6 trucks.

ideally equipped for pick-up and deliveries. The DD8 is a close clone of the DD5 that expands on the Detroit medium-duty category. It was launched a year after the DD5.

Though the DD5 is often compared to the DD4 highway tractor. it is worth noting. That this is an unfair comparison considering the Class differences of these engines.

Common failures of DD engines  and heads are as followed;

Cold start failing to start properly during the cold weather.

Issues with overheating and poor fuel economy.

Cummins ISX 15
The Cummins ISX is a diesel engine. That Cummins produces for heavy-duty trucks. The first ISX started in 1998. The series is famous due to the revolutionary fuel system known as the ‚ÄúInteract System‚ÄĚ.

Which the IS in ISX stands for. This fuel system is an HPI (High-Pressure Injection) system. The great fuel economy attributes to its system design.

Another quality that made the ISX stand out was the dual-camshaft system. One camshaft was for activating the injectors. While the other was responsible for activating the valve train. This feature did not last though, and the ISX became a single-cam engine in 2010.  In 2002, the ISX added a cooled EGR (Exhaust Gas Re-circulation). A system that reduced the amount of emission made by the engine.

The most notorious issue with the ISX engine is the Variable Geometry Turbochargers. That can easily fail and are expensive to replace. The other issue is that the camshafts tend to flatten out and the only remedy is to replace them plus the lockers. It is faulty lockers that cause the flattening of the camshafts in the first place

Most Heavy-Duty engines have aftermarket improvements nowadays.  That makes it easier to buy new or used parts at a local salvage yard in Houston, Texas. It allows improvising changing new expensive truck parts for engines to keep driving.

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Eaton Fuller, Rockwell  Used Rear, Middle and Front Differentials for Sale

  • Rear Dif Meritor or Rockwell 3.42 3.58 3.70 3.73 ratio
  • Middle Dif Meritor 3.42 3.70 3.73 ratio
  • Spicer Middle Dif 3.42
  • Eaton Fuller Rear Dif 3.42 3.70 3.73 ratio
  • Eaton Fuller Middle Dif 3.42 3.70 3.73 ratio

What Are the Differences Between Rear and Middle Differentials for Heavy-Duty Trucks?

A differential is an essential component of a truck’s rear axle. It provides power to the engine to move the truck forward. The word “differential” essentially means difference. It indicates the difference in the axle ratios of different heavy-duty trucks. A truck’s axle ratio number.

It means the number of rotations. That its driveshaft needs to produce at least one axle rotation.

Heavy-duty trucks come with middle and rear differentials. That they can allow the wheels to rotate at various rates. This allows the trucks to maintain their traction as the wheels turn. Usually, the axle ratio of heavy-duty trucks varies from 3 to 4.

Which means the driveshaft needs to turn 3 to 4 times to turn the axle once.

Types of differentials

Most 18 wheeler truck drivers keep an eye on the axle ratio, especially if they need to drive on a highway. The math is simple: if the axle turns faster due to the driveshaft. A low axle ratio will help them save fuel for long-distance trips. The engine will not have to work hard to force the wheels to turn.

Axle ratios vary from one truck to another. Trucks with rear and middle differentials. They have many ratios in their middle and rear axles. For example, if you search for rear differential Meritor or Rockwell for sale. Or you look for other truck parts McCarty Houston. Differentials can be 3.42 3.58 3.70 3.73 ratios.

Conversely, some heavy-duty trucks also come with optional axle ratios. Truck drivers pick vehicles with rear and middle differentials. As they focus on fuel economy and speed of the truck on the road. Middle differentials  Meritor 3.42 3.70 3.73 ratio is a fuel-efficient.

You will also come across heavy-duty trucks with standard axle ratios. These are not as fuel-efficient as rear and middle differential trucks.

Because they focus more on mileage. Vehicles with rear and middle differentials can save almost 1 extra mile per gallon. Which makes a huge difference when it comes to long-distance trips. From Houston, TX to California for instance.

Why picking the right ratio matter?

A truck’s axle ratio indicates its torque and towing capacity. As mentioned earlier, it also helps to find out whether the truck is fuel-efficient or not.

Picking the right ratio is essential. Because they come with various trade-offs for fuel-efficiency. For example, an Eaton Fuller Rear differential 3.70 3.73 ratios will be able to pull heavy loads. Compared to Spicer Middle differential 3.42. But there’s a significant difference in fuel economy and speed. The latter will have better speed and high fuel economy. Because a ¬†lower ratio axle has lower towing power but better fuel efficiency.

Which type of semi-trucks in Houston should you select if you had to decide on the basis of the axle ratio? This depends on the purpose for which you will use the truck. If you use it to tow another heavy vehicle for a short distance. You should select a truck with a higher ratio, such as Eaton Fuller Middle Dif 3.70 3.73. If you need to send belongings inside from one city to another. Tou should select a truck with a lower ratio like Eaton Fuller Middle Dif 3.42.

Some automobile companies allow you to upgrade your axle ratio. So that your truck provides better acceleration. But remember, your vehicle’s fuel economy and top speed may suffer if you go for the upgrade. It will become costlier to pull heavy-duty cargo or trailers using your truck.

Where to find semi truck parts near meūüďć to choose the right differential for a truck?

Whether you want to upgrade your old truck or buy a new one. You should be sure of which axle ratio suits the vehicle the most. It is sometimes challenging to compare axle ratios. Because different models of trucks come with different sizes of tires. While considering different ratios. Make sure you remember various terminologies, such as tall gears and short gears.

Tall gears mean the numerically lower axle ratios and short gears mean the high axle ratios. If you want to buy a truck with high fuel economy and on-road speed, then you should go for tall gears. But, if you prefer trucks for towing heavy vehicles. Then select short gears as they have a higher axle ratio.

It is better not to choose optional ratios as they usually have higher axle ratios. This will mean lower fuel economy compared to standard differentials. Trucks involved in light towing and transporting goods.

It should come with rear and middle axle ratios of 3.42 and  3.73. If you want to transport anything heavier or tow a fifth-wheel trailer. You will need a heavy-duty truck with an axle ratio of 4.1 or above.

Now that you know a lot about rear and middle differentials and the ideal axle ratios for vehicles. Make sure you choose or upgrade your truck in Houston, TX accordingly. Keeping these factors in mind.

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Used Big Trucks Transmissions and Parts for Sale Near Me is Optimal Search to Find a Salvage Yard Fast

  • 10 13 speed transmission Eaton Fuller
  • transmission cooler, pump, torque converter, parts
  • Look for wholesale transmissions

Buying Used Transmission For Heavy Duty Truck

The life of an Eaton heavy-duty truck transmission will vary considerably. Depending on use, application, and driving style.

So there is no set time when truck driver ought to a rebuild or buy used Eaton Fuller manual transmission. Eaton offers a wide range of parts to manufacture a fully overhauled transmission.

The rebuilding process involves stripping, cleaning used transmission with genuine Eaton parts. The work is carried out by a team of highly qualified specialists. With years of experience in rebuilding transmissions with the correct tooling.

The advantage of buying an Eaton remanufactured transmission is that. The rebuild is tested and spun through the gears to ensure. That it is working properly before being released for use. You also get peace of mind that the warranty backs you up. Through the nationally authorized OEM dealer network. Of course, the cost will be much higher than to find a used Eaton fuller 13-speed transmission for sale. Search semi truck parts near me.

Alternatively, you can buy affordable used 10 or 13-speed transmission in Houston, TX.

Common transmission problems that occur include:

‚Äʬ†¬† ¬†Vibration usually originates in the drive train. Damage often occurs without driver feeling any vibration. Problems caused by drive train vibration include. Gear rattle at idle, broken or loose synchronizer pins, loose brackets, caps crews or mountings, fretted bearings, gear and shaft spines, etc.

‚Äʬ†¬† ¬†Gear slip out or jump out is usually caused by clutching teeth that are worn or tapered.

‚Äʬ†¬† ¬†Hard shifting occurs when too much effort is required to shift from one gear to another. This is usually due to linkage problems. That stems from worn bushings or connections, lack of lubrication, or obstruction that restricts movement.

‚Äʬ†¬† ¬†Bumps on the gear teeth causes transmission noise like knocking or thudding. Bearing noise heard at low shaft speeds. It can occur when damaged rollers, balls, and/or pitted, spalled raceways.

‚Äʬ†¬† ¬†Overheating caused by the improper dissipation of heat. It can cause the oil to break down, shortening the life of the transmission.

‚Äʬ†¬† ¬†Auxilliary slip out caused by clutching teeth that are worn, tapered, or not completely engaged. These types of clutching defects. Cause clashing, vibrations, and low air pressure that adds to a slip out the problem.

‚Äʬ†¬† ¬†Other issues that repair must include are broken teeth, nicks, gear wear pattern, worn bearing with a big play, etc.

Problems with gears and shafts include:
‚Äʬ†¬† ¬†Gear failures
‚Äʬ†¬† ¬†Clashing
‚Äʬ†¬† ¬†Gear rattling at idle
‚Äʬ†¬† ¬†Manufacturing marks
‚Äʬ†¬† ¬†Shaft twist and fracture

Eventually, the time will come when any transmission will need attention. If you are considering buying a used transmission. We provide customers with high quality used manual transmissions for heavy-duty 10 and 13-speed.

Get your  18-wheeler  truck back to work and make money.

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