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Genuine
Fleetguard
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10.375″
Overall Height
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Finned
Pre-Cleaner Design
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NOS
Condition
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Retail
$69.99
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SAVE 50%
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Our Price
$34.99
Free shipping · Offers welcome
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This is a genuine Fleetguard air filter element, part number AF25543K, in the original factory-labeled carton. The label reads ELEMENT, quantity 1, Made in U.S.A.
Fleetguard has been a benchmark name in heavy-duty filtration since 1958, supplying air, fuel, lube and hydraulic filtration for on-highway trucks, agricultural equipment, construction machinery and power generation.
This is an outer air element with fins. The fins impart a swirl to incoming air so heavier dust is thrown outward before it reaches the media — a built-in pre-cleaning stage that extends service life in dusty conditions.
It is the outer half of a two-stage air cleaner and is normally paired with a separate inner safety element.
Stock is new old stock from a warehouse clear-out — carton unopened with the factory barcode label intact.
| ✓ | (1) Fleetguard AF25543K air filter element — unopened |
| ✓ | Original Fleetguard carton — factory part-number label and barcode |
Everything below is transcribed directly from the Fleetguard label on the carton:
| Brand | Fleetguard |
| Part Number | AF25543K |
| Label Description | ELEMENT |
| Type | Air filter |
| Quantity in Carton | 1 |
| Country of Manufacture | Made in U.S.A. |
| Dimensions — published equivalent data | |
| Style | Air filter with fins, axial seal |
| Media | Cellulose, pleated |
| Overall Height | 10.375″ (264 mm) |
| Outside Diameter — Top | 4.085″ (104 mm) |
| Outside Diameter — Bottom | 5.147″ (131 mm) |
| Inside Diameter — Top | 0.687″ (17 mm) |
| Inside Diameter — Bottom | 2.475″ (63 mm) |
| End Caps | Metal |
| Rated Flow | 100 CFM |
Dimensional figures are published data for the direct Baldwin PA4604-FN and WIX 42276 equivalents. Please measure your existing element before ordering.
Published filter-brand equivalents for this element:
| Brand | Part Number |
| Baldwin | PA4604-FN · PA4604FN |
| Hastings | PA4604-FN |
| WIX | 42276 · 542276 |
| Carquest | 87276 · 93236 |
| Nelson | 70757H |
| Hifi | SA 10385K |
| Filtron | AM4191 |
OEM part numbers covered by this element size:
| Manufacturer | Part Number |
| Caterpillar | 3I-0157 · 3I-0397 · 3I-0803 · 3I-0929 · 9Y-6839 |
| Cummins | 3318279 |
| AGCO | 2481018 · 72097035 · 74907794 |
| Allis Chalmers | 239513 · 239518 · 2103129 · 4907794 |
| Isuzu | 3214300300 |
| Bomag | 05730005 · 05730113 |
| Atlas Copco | 2900648800 |
| ACDelco | A297C |
Cross-reference numbers are listed for identification only and are the property of their respective owners. The OEM table above reflects coverage published for the equivalent element size rather than numbers confirmed against AF25543K individually — treat it as a starting point and confirm dimensions before ordering. Message us with your equipment model and we will help you check the fit.
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Agricultural tractors
John Deere, Case / Case IH, Allis Chalmers, AGCO platforms Compact & skid steer equipment
Bobcat and similar machines |
Construction & earthmoving
Caterpillar, Komatsu, JCB, Hitachi, Bomag Industrial & compressor
Atlas Copco and stationary power units |
Two-stage air cleaners pair this with a separate inner safety element, sold separately. If your service kit calls for both, message us with your model and we will confirm which inner element you need.
Applications listed are typical for this element size. Fitment varies by model, year and air cleaner configuration — please verify against your operator’s manual or measure your existing element before ordering.
Element is unused and unopened in its original Fleetguard carton with the factory part-number label and barcode intact. Cartons show shelf wear, handwritten inventory markings, dust and minor scuffs from long-term warehouse storage. The element itself is clean and untouched.
Photos are of the actual stock on hand. You receive one element per quantity purchased.
| Handling Time | Same or next business day |
| Ships From | California, USA |
| Packaging | Original carton, boxed and padded |
| Tracking | Provided on every order |
| Multiple Quantities | Available — message us for a combined-shipping quote |
30-day returns accepted on uninstalled filters in original packaging. If the part is not what you expected, message us before leaving feedback and we will make it right.
Need measurements before you buy? Just ask — we will open a carton and measure it for you.