The reputation for durability of Isuzu's hard-working and heavy commercial vehicles, pickup trucks, and other passenger vehicles is due in no small part to its robust transmissions. Isuzu's vehicles make use of both their own transmissions as well as standards in the industry, such as those produced by Allison, Aisin, Aisin-Warner, and General Motors, ensuring that power from the engine is transferred to the wheels from the engine as efficiently as possible. In the market for an Isuzu transmission? Keep reading to learn all about this Isuzu part and to avoid common mistakes when buying one.
Key Features of Isuzu Transmissions
Robustness & Durability
Transmissions used in Isuzus are robust and durable -- and they have to be. Used in heavy commercial vehicles, these transmissions have been built to handle heavy hauling in a variety of driving conditions.
Power Take-Off Capability (PTO)
Some transmissions used in Isuzus, particularly their heavy vehicles, will feature a Power Take-Off capability that transfers power from the engine to auxiliary components besides the wheels.
Fuel Efficiency
Isuzu's transmissions are designed to enhance fuel efficiency by utilizing lightweight materials.
Sourcing Isuzu Transmissions (OEM vs. Aftermarket)
When you purchase a brand new Isuzu, it comes with an Original Equipment Manufacturer (OEM) transmission made by Isuzu, Allison, Aisin-Warner, or Aisin. Transmissions made by third-party manufacturers and usable in Isuzus fall under the "Aftermarket" parts category.
Unless the transmission of your Isuzu is out of production and impossible to find, we recommend investing in an original Isuzu transmission to return your car to its original level of performance. Because of the more stringent levels of manufacturing, you'll likely get more use out of an OEM replacement. Aftermarket transmission might not only be excluded from Isuzu's warranty, but they could also void the warranty and even damage your vehicle when installed. Moreover, they might not even fit into your Isuzu properly. When it comes to an expensive part like the transmission, it's prudent to avoid taking chances and to go with the original.
Tips for Verifying the Quality & Condition of Used Transmissions
There are several ways to tell if a used transmission is likely to last:
1. Check that it is free from any leaks, as these could point to faulty seals and o-rings.
2. Be on the lookout for rust, as it could be a sign that some of the transmission's metal parts are corroding.
3. Make sure it comes with all the required documentation showing if it has gone through any major repairs (avoid those that have received any).
If missing, stay clear of it no matter how good it looks.
Types of Isuzu Transmissions
Automatic
To change gears, automatic transmissions use a mechanical clutch that is controlled automatically through electronics, pneumatics, or hydraulics instead of manually through a clutch pedal.
Highlights in Isuzu's automatic transmission lineup include Allison's Rugged Duty Series transmissions used in Isuzu's 2022 F-Series Class 6 and Class 7 trucks. These come available with FuelSense® 2.0 software and have been engineered for the ideal balance of power, reliability, and fuel efficiency.
Manual
In manual transmissions, gear shifting is performed manually with a gear stick and clutch. With proper operation, manual transmissions allow vehicles to achieve better performance and fuel efficiency. Manuals come with a learning curve, however. One of Isuzu's manuals is the MYY-5T five-speed, as found in the NLR 55-150 Tri-Tipper.
Automated Manual
The automated manual transmission is a hybrid of automatic and manual transmissions, allowing drivers to manually select gears without using a clutch pedal while in manual mode while operating by default in an automatic mode where gear changes are performed automatically. Isuzu's AMTs usually achieve better fuel consumption than automatics and comparable fuel efficiencies to well-driven manual transmissions.
Maintenance & Care of Your Isuzu Transmission
Isuzu transmissions are built to last. However, that doesn't mean you should skip any care and maintenance altogether. You can get the most out of your Isuzu's transmission by sending your vehicle for its scheduled maintenance, which should include transmission fluid checks. When driving, ensure that you're in the correct gear (that means not leaving your manual transmission in low gear for too long) and that you warm up your Isuzu before driving so that the oils flow correctly. Make sure that your tires are not overly low, as driving on them can put unnecessary strain on your transmission. Finally, your Isuzu's cooling system is also responsible for cooling the transmission fluid to an appropriate temperature, so make sure it is in good order.
Common Issues & How to Address Them
Transmission issues are frustrating and, most of the time, require a trained specialist to remedy them. These include delayed shifting, slipping gears, illuminated check engine light, burning smells, strange noises, and fluid leaks.
Occasionally, as with the case of burning smells and strange noises, the cause might be low transmission fluid or coolant levels. While you can check and top these up on your own, it might be all too late, as your transmission may have already incurred damage. In such cases, repair or a whole transmission replacement might be necessary.
Are Isuzu Transmissions Expensive?
Isuzu transmissions are not necessarily expensive when you compare them to those used by other brands, but bear in mind that transmissions are nevertheless pricey components. Be prepared to spend more on a replacement transmission than the average part.
Where to Buy Genuine Isuzu Transmissions Online
Brand-new OEM transmissions can be purchased directly from your country's Isuzu and OEM parts retailers. On the other hand, second-hand Isuzu transmissions can be a cost-effective alternative. You can get these in great condition and at affordable prices here at BE FORWARD Auto Parts.
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