Optimal Heavy Duty Performance
Revised September, 2023
In the world of heavy duty trucks, maintaining high performance is crucial for efficient operations and cost-effective maintenance. Air intake, cooling, and exhaust systems play a vital role in keeping your class 6-8 semi truck running smoothly. These systems work together to maximize power, reduce emissions, and ensure a longer lifespan of your rig. Knowing the key components of these systems will equip you with the knowledge to address common challenges faced by truck owners.
Keep It Cool: Charge Air Cooler

A charge air cooler (ACC), also known as an intercooler, is a component of the air intake system. The ACC plays a crucial role in increasing engine efficiency. As the name suggests, it cools the compressed air coming from the turbocharger before it enters the engine’s combustion chamber. The purpose of this is to cool the air to an optimal temperature, maximizing power during the combustion process.
By lowering the air temperature, a charge air cooler improves the air density, resulting in optimal performance output and fuel efficiency. It also helps prevent overheating of engine components, reducing the risk of engine damage.
Best on the Market

The OTR charge air coolers offers best-in-the-class quality with zero tolerance for leaks. With OEM form, fit, and function for all makes and models, OTR Charge Air Coolers are available 24/7 on FleetPride.com. These CCAs ensure :
- Direct fit replacement
- All new, no cores
- Brazed, aluminum construction with all new parts
- 2 year unlimited mileage nationwide warranty (parts only)
- 100 % leak-free
- Available for light, medium, and heavy duty, late model and hard-to-find
Under the Hood Diagnostics
CACs are most often misdiagnosed, undiagnosed, and neglected. Often injectors and turbos are replaced when the CAC is the real problem.
Common is the buildup of dirt, debris, and oil inside the cooler. Over time, this can restrict airflow and reduce cooling efficiency. This leads to decreased engine performance.
Regular cleaning and maintenance of charge air coolers are essential providing optimal air flow and avoiding damage to the engine. Consider using specialized cleaning solutions and follow manufacturer's guidance in maintaining the charge air cooler’s performance.
Failing to misdiagnose a CAC can cause:
- Turbocharger failure
- Exhaust manifold failure
- Increased fuel consumption
- Premature DPF failure
- Premature injector piston, ring, and valve failure
- Increased particulate levels in admissions

Equip Your Rig with CAC Tester Kit
Easily Test a CAC with a CAC tester kit that has a durable molded carrying case. This CAC tester kit has an improved safety clamp design and air pressure gauge.
Testing is easy! You do not need to remove the CAC from the truck. Gain results in less than twenty minutes.
The testing kit includes heavy-duty test plugs with cast handles that fit six different sizes (2.5" to 4" rubbers). It also includes an air stream gauge, pressure relief valve, and safety clamps for operator protection.
OTR PN | Applications | |
---|---|---|
NO441146 | For 2004-2007 Sterling A - L Line 9000 Series Y Model | |
For 1996-2001 Freightliner Century C Model | ||
For 2003-2007 Freightliner Classic - Classic XL | ||
For 2002-2007 Freightliner Columbia CL, Century ST, 2003-2007 Freightliner FL D Model | ||
For 1997-2004 Freightliner FL112 N Model | ||
For 2004-2007 Freightliner M2 112 | ||
R0441115 | For 1994-2003 International 2554-2654 | For 1999-2003 International Eagle 9900i-ix |
For 1994-2003 International 2574-2674 | For 1999-2003 International Eagle 9900i-ix | |
For 1998-2003 International Eagle 9100i | For 1996-2003 International PayStar 5000 Series | |
For 1993-2003 International Eagle 9200i-9400i | For 1994-1998 International TranStar 8200 | |
K0441109 | For 1991-1996 Mack RD600 | |
For 2002-2007 Granite charge air to inter cooler | ||
C0441258 | For 1995-2007 Mack MR Series | |
L0441114 | For 1995-2007 Peterbilt 357-385 | For 2005-2007 Peterbilt 386 |
For 1995-2001 Peterbilt 377 | For 2004-2007 Peterbilt 387 | |
For 1995-2007 Peterbilt 378-379 | ||
M0441314 | For 2008-2010 Peterbilt 335 | For 2015-2015 Peterbilt 567 |
For 2008-2015 Peterbilt 365 | For 2008-2015 Kenworth T800 | |
For 2008-2014 Peterbilt 367 | For 2014-2015 Kenworth T880 | |
J0441103 | For Kenworth T600, T800, W900, C500 |
OTR PN | COMMON OEM PN | APPLICATIONS |
---|---|---|
REFUSE | ||
C04411281 | 3MF5582M2 | For Autocar 1996-2007 Expeditor WX |
F0441316 | 3MF5584M | For Autocar 2003-2009 Expeditor WX, 09-10 ACX |
C0441258 | 3MD539 | For Mack 1999-2007 MR |
C0441129 | 3MD531 | For Mack 2000-2007 LE with AI engine |
D0441310 | 3MF5530 | For Mack 2007-2011 MRU |
C0441309 | 3MF5578M | For Mack 2007-2011 LEU |
N0441216 | 3MF5568M | For Peterbilt 1993-2007 Model 320 |
BUS | ||
L0441263 | — | For 2003-2007 Bluebird All American rear engine (A3RE) |
N0441244 | — | For Gillig multiple years / multiple models and chassis |
R0441206 | — | For 2002-2008 Prevost Bus 11 |
FleetPride. Your First Click in Heavy Duty™.
Remember to choose top-quality parts from FleetPride : We keep the country running. Ensure your engine management system is running smoothly at peak performance with the proper charge air cooler.
Visit FleetPride.com today to explore our wide range of products. FleetPride gets the right parts to the right place at the right time. Experience the difference FleetPride makes today.
* The forgoing is provided for informational purposes only. Please consult your local FleetPride Heavy Duty Experts to verify the suitability of a part for the intended application.