Baldwin Filters RS3994 Automotive Air Filter Element

Product Description

The BALDWIN FILTERS RS3994 is a replacement air filter element designed for heavy-duty automotive and equipment applications. This element-only design filters incoming air before it enters the engine, protecting against dust, debris, and particulate contamination that causes premature wear. At 8.69 inches outside diameter and 15.84 inches overall length, the RS3994 fits a specific range of engines and equipment where maintaining clean airflow is critical to performance and service life. Installation is typically performed by diesel technicians, fleet mechanics, or equipment service professionals during scheduled maintenance intervals.

The RS3994 is suited for heavy-duty automotive and off-highway equipment applications. It serves as a direct OEM-style replacement and crosses to several industry-standard part numbers, making it a practical choice for fleet shops and service dealers managing multiple equipment lines. The element-only design means it is intended for use in a housing that remains in place during service, reducing replacement cost and waste. Typical install scenarios include scheduled air filter service on construction, agricultural, or over-the-road equipment.

Key Features

• Element-only filter design for use with existing housing
• Outside diameter of 8.69 inches for precise housing fit
• Overall length of 15.84 inches
• Crosses to Caterpillar 4193974, Donaldson P782104, Fram CA10029, Hastings RS3994, and Wix 49783
• Lightweight at 3.95 pounds for easy single-technician handling

Compatibility

The RS3994 is compatible with applications referencing Caterpillar 4193974, Donaldson P782104, Fram CA10029, Hastings RS3994, and Wix 49783. Verify housing dimensions against filter OD and OAL before installation.

Installation Notes

Air filter elements should be replaced by a qualified mechanic or diesel technician following the equipment manufacturer's recommended service interval. Always shut down and lock out the engine before opening the air filter housing. Inspect the housing gasket sealing surfaces for damage before installing the new element. Do not run the engine with the air filter housing open or the element removed.