AF25687 Heavy Duty Engine Air Filter for Older Mack Trucks
AF25687 heavy duty air filter for older Mack GU400-CL700 trucks (NOT for new Mack MP-series). Cross reference CA8932, LAF8691, RS3936. Factory direct.
Description
This filter fits older Mack truck models — it does NOT fit new Mack MP-series trucks.
The AF25687 air filter is a radial seal heavy-duty engine air filter designed for older Mack trucks, including the GU400, GU500, CX600, CXU600, CH600, CL600 and CL700 models. It captures dirt, dust and airborne debris before reaching the engine intake, protecting engine performance and fuel efficiency. IXIN Filter manufactures this filter to OEM-equivalent specifications, giving fleets and dealers a reliable, factory-direct alternative for scheduled air filter replacement.
As a TS16949-certified filter manufacturer, IXIN supplies the AF25687 air filter to distributors, fleet operators and service centers in 60+ countries, with consistent batch quality and full traceability for bulk and OEM orders.
Product Specifications
| Attribute | Detail |
|---|---|
| Product Type | Radial Seal Heavy-Duty Engine Air Filter |
| Length | 10.9 in (277 mm) |
| Width | 10.6 in (269 mm) |
| Height | 27 in (686 mm) |
| Weight | 6.9 lb (3.1 kg) |
| Certification | TS16949 |
Compatible Vehicles — Older Mack Models Only
- Mack GU400
- Mack GU500
- Mack CX600
- Mack CXU600
- Mack CH600
- Mack CL600
- Mack CL700
⚠️Important: This filter is specifically for older Mack truck platforms and is not compatible with new Mack MP-series trucks (such as those using MP7/MP8 engines). Using this filter on an incompatible newer Mack model can result in a poor fit or inadequate filtration. Confirm your truck’s exact model and engine before ordering.
AF25687 Cross Reference / OE Replacement Numbers
The AF25687 air filter is a direct cross reference and replacement for the following OE and aftermarket part numbers:
| Brand / Source | Part Number |
|---|---|
| Fleetguard | AF25687 |
| Fleetguard (alt.) | AFR825687 |
| Mack OE | 2MD4139M |
| Mack OE (alt.) | 57MD46M |
| Mack OE (alt.) | 81SF28 |
| FRAM | CA8932 |
| Luber-finer | LAF8691 |
| Baldwin | RS3936 |
| Hastings | AF2315 |
| Donaldson | P540654 / P540731 / P600676 |
| WIX | 46353 |
| Nelson | 70990N |
Note: Confirm with your parts manual or dealer that your specific Mack model uses this older filter platform, as some listings incorrectly cross-reference this to newer Mack MP-series trucks.
Why Choose IXIN’s AF25687 Air Filter
- Purpose-Built for Older Mack Trucks — Designed specifically for the GU400-CL700 generation of Mack trucks, rather than a generic one-size-fits-all filter.
- Reliable Contaminant Protection — Radial seal design captures dirt, dust and airborne debris, helping maintain airflow and protect engine performance over the service interval.
- OEM-Equivalent Fit — Manufactured to match OE dimensions for the AF25687, ensuring drop-in compatibility for the compatible older Mack model range.
- Factory-Direct Supply — As a manufacturer (not a trading company), IXIN offers stable lead times and customization options for private label, packaging and media specification.
- Bulk & OEM Pricing — Volume discounts available for fleet operators, distributors and workshops. For guidance on verifying cross reference numbers before a bulk order, see our fuel filter cross reference guide — the same verification principles apply across air, fuel and hydraulic filter categories.
Installation & Maintenance Notes
For older Mack GU400-CL700 trucks using the AF25687 air filter, general service steps include:
- Shut down the engine and allow the air intake system to cool before servicing.
- Open the air filter housing and remove the old filter element.
- Inspect the housing for dust buildup or debris before installing the new element.
- Install the new AF25687 filter, ensuring the radial seal seats evenly to prevent unfiltered air bypass, and secure the housing cover.
- Recommended replacement interval: follow your truck’s OEM service schedule, typically based on mileage or a restriction indicator reading.
FAQ
Q: Will the AF25687 fit a new Mack MP-series truck? A: No. The AF25687 is specifically designed for older Mack trucks (GU400, GU500, CX600, CXU600, CH600, CL600, CL700). It is not compatible with new Mack MP-series trucks. Confirm your truck’s exact model before ordering.
Q: What’s the difference between IXIN’s AF25687 and the OEM Fleetguard filter? A: IXIN manufactures this filter to match OEM dimensions and the radial seal design. The main difference is price and lead time — IXIN offers factory-direct pricing for bulk and OEM orders without compromising fit or filtration performance.
Q: Can I order the AF25687 with custom packaging or private label? A: Yes. IXIN supports customized packaging, labeling and media specifications for distributors and private-label buyers. Contact our sales team with your requirements.
Q: What is the minimum order quantity (MOQ)? A: MOQ varies by customization level. Get in touch with us via WhatsApp or email for current MOQ and lead time on the AF25687 air filter.
