Allison Transmission Transmission Filter for 2020-2021 Freightliner MT45 - 29539579

AllisonTransmission

Item #: 23003

Allison Transmission Transmission Filter for 2020-2021 Freightliner MT45 - 29539579

Item #: 23003

NZD 64

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What Stands Out

OEM Quality

This Genuine Allison Transmission Filter meets original equipment manufacturer standards, ensuring optimal performance and durability for your Freightliner MT45, targeting users looking for reliable replacement parts.

Exact Fit

Designed specifically for 2020-2021 Freightliner MT45 models, this filter guarantees a perfect fit, preventing common installation issues and delivering efficient transmission fluid filtration for improved longevity.

Enhanced Protection

The filter effectively removes contaminants from transmission fluid, extending the life of your transmission system, and enhancing overall vehicle performance, making it a crucial investment for freight operators.

Product Details

Brand Name	Allison Transmission
Manufacturer Part Number	29539579
Manufacturer	Allison Transmission
Number of Items	1
Model Number	29539579
Included Components	Filter,Trans
Item Type Name	Filter,Trans
Outside Diameter	4.3 Inches (10.9 cm)
Thread Size	M16 x 1.5
Product Grade	Performance Part
Compatible with Vehicle Type	Truck
OEM Equivalent Part Number	29539579
Automotive Fit Type	Vehicle Specific Fit
Material Type	Metal Housing, Fibrous Media
Brand	Allison Transmission
Material	Metal Housing, Fibrous Media
Vehicle Service Type	Truck
Item Weight	1 lbs (450 grams)

Who Should Buy?

Fleet Operators
Ideal for fleet operators maintaining multiple Freightliner MT45 vehicles, ensuring consistent and efficient transmission performance.
Vehicle Technicians
Perfect for professional vehicle technicians needing a reliable replacement filter for routine maintenance or repairs.
Heavy-Duty Users
Suitable for users operating heavy-duty vehicles, as it enhances transmission longevity and system efficiency.

Casual Drivers
Not ideal for casual drivers who do not require frequent maintenance or specialized transmission filters.

Product Description

Allison Transmission Transmission Filter for 2020-2021 Freightliner MT45 - 29539579

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Product Buying Guide

Ensure smooth and efficient performance of your 2020-2021 Freightliner MT45 with the Allison Transmission Transmission Filter - 29539579. Designed specifically for the 6.0L V8 Gas engine, this filter is engineered to maintain the integrity of your vehicle's transmission system, providing reliability and longevity. Continue Reading

Customer Questions & Answers

Question: What is a Transmission Filter and why is it important for the Freightliner MT45?

Answer: A transmission filter is a crucial component that helps to keep the transmission fluid clean by trapping contaminants and debris. For the Freightliner MT45, maintaining a clean transmission is vital for optimal performance and longevity. A clogged or dirty filter can lead to transmission overheating, shifting difficulties, and ultimately, expensive repairs. Regular replacement of the transmission filter will help ensure smooth operation and help maintain the overall health of the vehicle's transmission system.
Question: How often should I replace the Transmission Filter for my Freightliner MT45?

Answer: It is recommended to replace the transmission filter at regular intervals, often aligned with transmission fluid changes. For the Freightliner MT45, consider checking your service manual or consulting with a professional. Frequent driving in challenging conditions, such as heavy loads or stop-and-go traffic, may necessitate earlier replacements. Keeping track of your maintenance schedule can help prevent potential transmission issues and ensure that your vehicle runs smoothly.
Question: Can I install the Transmission Filter myself for the Freightliner MT45?

Answer: Yes, installing the transmission filter can be a DIY task if you have basic mechanical knowledge and tools. Begin by ensuring the vehicle is level and safely supported. Remove the old filter and clean the area before installing the new one. Following the manufacturer’s guidelines during the installation process is crucial to prevent leaks and ensure proper function. This task can be rewarding and save you on labor costs, but always prioritize safety and consult professional help if uncertain.
Question: What are the signs of a failing Transmission Filter in my Freightliner MT45?

Answer: Signs of a failing transmission filter may include difficulty in shifting gears, unusual noises from the transmission, or even slipping. If you notice dirty transmission fluid, an illuminated warning light, or strange vibrations, these could indicate filter issues. It’s important to address these symptoms promptly to avoid further damage to the transmission system. Regular inspection and maintenance can help catch these problems early.
Question: What type of Transmission Filter is suitable for the Freightliner MT45?

Answer: The suitable transmission filter for the Freightliner MT45 is part number 29539579. It is designed specifically for this model to deliver optimal filtration performance. When purchasing, ensure you select a filter that is compatible with your vehicle’s specifications to maintain proper functionality and reliability. Using the right part guarantees that your transmission operates efficiently, supporting overall vehicle performance.
Question: Will changing the Transmission Filter affect my Freightliner MT45's performance?

Answer: Yes, changing the transmission filter can significantly enhance your Freightliner MT45’s performance. A new filter ensures that the transmission fluid remains clean and effective at lubricating and cooling the transmission components. Improved fluid flow can lead to better shifting, increased fuel efficiency, and a reduced likelihood of transmission wear. Regular maintenance, including filter replacement, is key to preserving your vehicle's power and efficiency.
Question: Where can I buy a Transmission Filter for the Freightliner MT45?

Answer: You can buy the Transmission Filter for the Freightliner MT45 - 29539579 through Ubuy in New Zealand. Ubuy offers a selection of automotive parts including the necessary filtration components for your vehicle. Easy navigation and user-friendly interface on Ubuy make it simple to find the right part while accessing important product details.
Question: What are the benefits of using a high-quality Transmission Filter?

Answer: Using a high-quality transmission filter can provide numerous benefits including improved filtration efficiency, enhanced fluid flow, and a longer lifespan for your transmission system. High-quality filters are designed to trap more contaminants and are made from durable materials that can withstand the demands of heavy-duty use. This leads to better overall performance and reliability of your Freightliner MT45, allowing for smoother operation and reduced chances of malfunction.
Question: Is there a difference between OEM and aftermarket Transmission Filters?

Answer: Yes, OEM (Original Equipment Manufacturer) filters are designed specifically for your Freightliner MT45 by the original maker, ensuring precise specifications and compatibility. Aftermarket filters might be less expensive and vary in quality and performance. While some aftermarket options offer good value, selecting an OEM filter could provide a better assurance of quality and effectiveness. Depending on your vehicle's use and maintenance philosophy, both options can be viable, but prioritizing quality is key.
Question: How does the condition of the Transmission Filter impact my vehicle's overall maintenance?

Answer: The condition of the transmission filter has a direct impact on your vehicle's overall maintenance. A dirty or clogged filter can lead to increased strain on the transmission system, resulting in poor performance, inefficient fluid circulation, and potential system failure. Regular checks and timely replacements of the filter help in maintaining fluid quality and transmission health. Prioritizing the upkeep of this component is essential for reliable vehicle operation.

AllisonTransmission Oil Filters 29539579 Editorial Review

The Allison Transmission 29539579 Filter is highly recommended by customers who have used it in their GM trucks with an Allison transmission. It is a great alternative to the AC Delco filter and is half the cost. Customers have confirmed that it fits perfectly in their vehicles and is as good as the original Allison filter. It is compatible with all Allison 1000, 2000, and 2400 series transmissions and will provide the best protection for the vehicle's transmission. The recent production runs of this filter have seen it change from the traditional red to a black color. The filters are authentic Allison filters and are made in the USA. The product generally has positive reviews, with some customers making video reviews on YouTube.

Customer Reviews & Ratings

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Pros

Fits perfectly in GM trucks
Cheaper than AC Delco filter
Provides good protection to the transmission
Authentic Allison filter made in the USA

Cons

Does not include a magnet

Platform Trust & Buyer Confidence

4.1/5 355 reviews

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Ranee

Verified buyer

“Paint ordered from USA, u buy got the product to me in New Zealand in approx a week”

22 July 2026 · via Trustpilot

NordVPN

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“very speedy delivery,tracking info was superb-best experikence ever!!!”

24 June 2026 · via Trustpilot

Nicholas

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“Love what I received and ordered found that usa clothes are more better quality and look better than the same clothes in my country but are harder to find here recommend ubuy 100%”

22 June 2026 · via Trustpilot

Dneah

Verified buyer

“Product came earlier than expected (shipped from US to NZ), in about 3 weeks. No damages and product was exactly as advertised!”

15-Jul-26 · via Trustpilot

Tania

Verified buyer

“Easy to order, easy to track and the product is great to use. Also, the person-to-person (not automated) phone call I got to confirm that I'd received the item was wonderful ??”

11-Jul-26 · via Trustpilot

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Important information

Limitations : For products shipped internationally, please note that any manufacturer warranty may not be valid; manufacturer service options may not be available; product manuals, instructions, and safety warnings may not be in destination country languages; the products (and accompanying materials) may not be designed in accordance with destination country standards, specifications, and labeling requirements; and the products may not conform to destination country voltage and other electrical standards (requiring use of an adapter or converter if appropriate). The recipient is responsible for assuring that the product can be lawfully imported to the destination country. When ordering from Ubuy or its affiliates, the recipient is the importer of record and must comply with all laws and regulations of the destination country.
Not all the products listed on Ubuy are for sale, as Ubuy is a global search engine. Products are subject to export/trade regulations.

NZD 64

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Allison Transmission Transmission Filter for 2020-2021 Freightliner MT45 - 29539579