Description
When you’re operating heavy equipment in dusty job sites or tough conditions, your engine’s air filter is what stands between thousands of dollars in engine components and all the dirt, debris, and grime trying to get in. It’s built to handle the dust and debris that comes with construction sites, farm fields, and job sites. This Baldwin RS3999 filter has the size and capacity to handle the demanding airflow requirements of large construction engines while keeping the bad stuff out.
What You’re Getting
- Extra-large filtration area with 22 5/8-inch length and nearly 8-inch diameter for maximum dirt-holding capacity
- Multi-stage pleated media that traps fine particles while maintaining the airflow your big engine needs
- Robust end caps and seals designed to handle the constant vibration of heavy equipment operation
- Works with companion inner filter RS3998 for complete two-stage filtration protection
Built for Heavy Construction Work
This filter fits a wide range of heavy equipment from trusted names like Case, Caterpillar, John Deere, New Holland, Gehl, Vermeer, and Volvo. Whether you’re running motor graders on road construction, operating loaders in quarries, or using cranes on job sites, this filter protects the large diesel engines that power through long days of demanding work.
Made to Last
Baldwin has been making filters for decades, and they know what it takes to survive in harsh conditions. The pleated media holds its shape even when loaded with dirt, and the seals stay flexible through temperature swings and vibration. You’ll get reliable filtration that protects your engine investment.
Installation Notes
This is a direct replacement—no modifications needed. The large size means this filter lasts longer between changes, but don’t push it too far in extremely dusty conditions. When swapping filters, take a minute to clean out the air box and check for any cracks in the housing or loose clamps. If you’re running a dual-stage system, remember to check your inner filter too.
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