AF25437 Radial Seal Air Filter, 525 mm Height, 281 mm OD, Replaces Fleetguard AF25437, 4459543, AT223226, F434394, AT175223, 3098170830, LAF8669

Description

The AF25437 air filter is a heavy duty radial seal primary air filter element, 525 mm tall with a 281 mm outside diameter, used to keep dust out of the engine intake on construction, forestry and heavy duty equipment. IXIN Filter manufactures this AF25437 air filter as a factory-direct replacement for the Fleetguard AF25437, John Deere AT223226, F434394 and AT175223, and Kawasaki 3098170830, giving distributors, fleets and repair shops a dependable option for scheduled air filter replacement.

IXIN has produced filters since 2010 and supplies customers in more than 60 countries. Browse our full range of air filters for trucks, buses, construction and agricultural machinery.

AF25437 Air Filter Specifications

Please confirm dimensions against your sample or drawing before ordering in bulk.

What Is a Radial Seal Air Filter?

A radial seal air filter seals against the air cleaner housing on its inside diameter, rather than on a flat end face. The seal presses around the outlet tube of the housing, which gives a tight fit that keeps unfiltered air from bypassing the media. This design is widely used in heavy duty trucks and equipment, and it makes the fit of the element very sensitive to the inside diameter. For the AF25437 air filter, check the inside diameter and the 525 mm height against your old element before ordering.

Compatible Applications

A public catalog listing for the Fleetguard AF25437 shows cross references to many equipment makers. Reseller pages describe the AF25437 air filter as a primary air filter element for:

• Caterpillar excavators, dump trucks and forest equipment
• DAF trucks
• Grove cranes
• Hyundai loaders
• John Deere forest equipment, dozers, loaders and excavators

Fit can vary by machine model, engine and air cleaner housing. Please confirm your machine model, model year, housing and the OE number of your existing filter before ordering the AF25437 air filter. If you only have a photo or the old filter, send it to us and we will help check the match.

AF25437 Air Filter Cross Reference / Replacement Numbers

The AF25437 air filter is a cross reference to the following part numbers:

OE and aftermarket part numbers are listed for reference only. All brand names belong to their respective owners, and IXIN is not affiliated with them. For official Luber-Finer numbers, you can also use Luber-finer’s online parts lookup and compare the result with our AF25437 air filter data.

Why Air Filter Replacement Matters

Dust and dirt in intake air act like sandpaper inside the engine. A heavy duty air filter captures these particles before they reach the cylinders, turbocharger and intake system. A clogged AF25437 air filter restricts airflow, which can cause power loss, black smoke and higher fuel use, while a damaged or poorly sealed element lets dust through and speeds up wear on pistons and rings. Regular replacement matters most for machines working in dusty conditions such as quarries, forests, farms and construction sites.

Why Choose IXIN’s AF25437 Air Filter

• Factory-Direct Supply: IXIN manufactures filters in its own factory in Linxi County, Hebei. You deal with the manufacturer, not a trading company.
• Wide Cross-Brand Coverage: One AF25437 air filter replaces Fleetguard, John Deere, Donaldson, Baldwin and Mann-Filter references, which helps distributors simplify inventory.
• Defined Size for Easy Matching: A clear 525 mm height, 281 mm outside diameter and 150 mm inside diameter make it simple to compare the AF25437 air filter against the element you are replacing.
• Quality Filter Paper: We build our filters with media from a dedicated filter paper manufacturer. Read how high-quality filter paper improves truck air, oil and fuel filter performance.
• Customization Available: We support customization of filter paper quality, metal thickness and packaging for your market.
• Fast Delivery: In-stock items usually ship in 5 to 10 days. Made-to-order items take 15 to 45 days, depending on quantity.

To avoid cross-reference mistakes, read our filter cross reference guide before placing a bulk order for the AF25437 air filter.

Installation and Maintenance Notes

1. Switch off the engine and let it cool. Clean the outside of the air cleaner housing so dirt does not fall into the intake.
2. Open the housing and carefully pull out the old element, turning it slightly to release the radial seal.
3. Wipe the inside of the housing and the sealing surface of the outlet tube with a clean cloth. Do not let dust fall into the intake pipe.
4. If your housing uses a secondary (safety) element, check it and replace it when the manufacturer says so.
5. Check the new AF25437 air filter for damage, and make sure the radial seal is clean and undamaged.
6. Push the new element straight onto the outlet tube until the seal sits fully against it, then close the cover and secure the clips or clamps.
7. Reset the restriction indicator if fitted, start the engine and check that no unfiltered air can enter.
8. Replace the filter at the interval recommended by the machine maker, and sooner in dusty working conditions.

FAQ

Q: Which part numbers does the AF25437 air filter replace?
A: It is a cross reference to Fleetguard AF25437, John Deere AT223226, F434394 and AT175223, Kawasaki 3098170830, Donaldson P537876, Baldwin RS3744 and others listed above. Confirm fit before bulk orders.

Q: What are the dimensions of the AF25437 air filter?
A: It is 525 mm tall with a 281 mm outside diameter and an inside diameter of about 150 mm. Some suppliers list slightly different figures, so please check against your sample.

Q: Which machines does the AF25437 air filter fit?
A: Public sources describe it as a primary air filter for Caterpillar, DAF, Grove, Hyundai and John Deere equipment, among others. Fit varies by model and housing, so send us your OE number, machine model or a photo of the old filter, and we will help confirm.

Q: Do I need a safety element with the AF25437 air filter?
A: Reseller information says the Fleetguard AF25437 is designed to be used with the AF25523 secondary element. Check your housing and engine manual, and send us the details if you need help finding the matching safety element.

Q: Can I order the AF25437 air filter with custom packaging or private label?
A: We support customized packaging, filter paper quality and metal thickness. Contact our sales team with your requirements.

Q: What are the MOQ and lead time?
A: In-stock goods generally ship in 5 to 10 days, and made-to-order items take 15 to 45 days. Get in touch with us for MOQ on the AF25437 air filter.

Need the AF25437 air filter or other heavy duty air filters? Send us the OE number, and we will reply with specifications and a quotation.
Email: sales@ixinfilters.com | WhatsApp: +86 18833443345 | Get a quote