Choosing the Right Transmission Filter Kit for Your 1991-2007 Mack CL
Keep your Mack's transmission shifting smoothly by selecting the correct filter kit for your specific gearbox.
- You must identify your specific transmission (e.g., Mack T200/T300, Allison) before buying a kit.
- Symptoms of a bad filter include hard shifting, whining noises, and overheating.
- Both Wix and ATP are reliable aftermarket brands; choose based on kit contents and price.
- Replacing the filter is a messy but feasible DIY job for those with heavy truck experience.
Is Your Mack CL Showing Signs of a Clogged Transmission Filter?
A heavy-duty transmission like the one in your Mack CL generates a lot of internal debris during normal operation. The filter's job is to catch it. When that filter gets clogged, it can starve the transmission of fluid, leading to serious and expensive problems. Ignoring these signs can lead to transmission overheating or complete failure, leaving you stranded.
Key Failure Symptoms
- Delayed or Hard Shifting: Hesitation when the transmission shifts into gear is a classic sign of low hydraulic pressure caused by a clogged filter.
- Unusual Noises: A whining or buzzing sound from the transmission area, especially when in gear, can indicate the pump is struggling to pull fluid through a restricted filter.
- Transmission Overheating: If your transmission temperature gauge is climbing, a clogged filter could be restricting the flow of fluid to the cooler.
- Visible Leaks: Some filter kits include new gaskets and O-rings. A leak around the filter housing or transmission pan is a clear sign a component has failed.
Choosing the Right Aftermarket Filter Kit
For the 1991-2007 Mack CL, several different transmissions were available. It is critical to identify your specific transmission before ordering a part. The most common aftermarket kits are for the Mack T200 and T300 series transmissions, but filters for Allison automatics were also common options.
Aftermarket Brand Tiers: ATP vs. Wix
Both ATP and Wix are established aftermarket brands that offer kits for Mack trucks. Your choice often comes down to the specific transmission you have and price.
- Wix: Often considered a premium filter manufacturer. Wix kits, like the popular 57764 for certain Mack transmissions, are known for high-quality filter media and construction. They are a trusted choice for mechanics who prioritize filtration efficiency.
- ATP: Specializing in transmission components, ATP provides complete kits that often include the filter, pan gasket, and any necessary O-rings. Kits like the ATP B164 are designed to be a full service solution, which is convenient for a complete fluid and filter change.
There is no significant quality difference reported by owners between these brands for this application. The most important factor is ensuring the kit matches your specific transmission model.
Cost of New Aftermarket Transmission Filter Kits (1991-2007 Mack CL)
| Part Type | Price Range | Notes |
|---|---|---|
| New Aftermarket Kit | $12.56 - $132.96 | Price varies widely based on your specific transmission (e.g., T200/T300, Allison) and kit contents. |
| Shop Labor for Installation | $150 - $300 | Labor at a heavy-duty truck shop. Price depends on accessibility and whether it's part of a larger service. |
Frequently Asked Questions
How often should I change my Mack CL's transmission filter?
Service intervals depend on your transmission model and how you use your truck. For heavy vocational use, a yearly change or every 25,000 to 50,000 miles is a good rule of thumb. Always consult your Mack service manual for the most accurate schedule.
Is this a DIY job for a Mack CL owner?
If you are comfortable working on heavy trucks, a transmission filter change is manageable. It requires large drain pans, the correct tools to remove the filter housing or pan, and a way to safely get under the truck. The job can be messy due to the large amount of fluid. For most, having a qualified shop perform the service is easier and safer.
Do I need to replace the pan gasket every time?
Yes. If your service requires dropping the transmission pan to access the filter, you should always install a new gasket to prevent leaks. Many kits from brands like ATP include a new gasket for this reason.
Were there any recalls for the Mack CL transmission filter?
No specific recalls or widespread technical service bulletins (TSBs) related to the transmission filters themselves for the 1991-2007 Mack CL were found. Issues are typically related to normal wear and tear or lack of maintenance.
Technical Specifications
Varies by transmission model. Common aftermarket kits include Wix 57764 and ATP B164. Always verify the kit fits your specific Mack transmission (e.g., T200, T300, Allison) before purchase.
We Have This Part in Stock
The information in this article is provided for general reference and educational purposes only. Vehicle specifications, procedures, and part compatibility can vary by production date, trim level, and region. Always consult your vehicle's factory service manual and verify part numbers before purchasing or performing repairs. Safety-critical components such as airbags, seat belts, and braking systems should be installed by a qualified professional.
- Mack CL: