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Baldwin RS4637 Engine Air Filter - Inner
Overview of Baldwin RS4637 Engine Air Filter
The Baldwin RS4637 engine air filter is designed specifically for international buses and trucks, providing reliable filtration to maintain engine performance. This filter is engineered to fit inside the RS4636 model, ensuring compatibility and ease of replacement.
- Compatible with international buses and trucks
- Fits inside Baldwin RS4636 air filter
- Height: 15 11/32 inches (389.7 mm)
- Inside diameter: 5 1/32 inches (127.8 mm)
- Outside diameters: 3 1/2 inches (88.9 mm) and 8 1/32 inches (204 mm)
- Replaces International part number 3532800-C1 and Fleetguard AF25732
Detailed Product Description
The Baldwin RS4637 engine air filter is engineered to meet the filtration needs of international buses and trucks. With a height of 15 11/32 inches (389.7 mm), this filter fits precisely inside the RS4636 model, providing a secure and effective seal. The dual outside diameters of 3 1/2 inches (88.9 mm) and 8 1/32 inches (204 mm) accommodate specific housing requirements, while the inside diameter of 5 1/32 inches (127.8 mm) ensures proper airflow. This filter replaces International part number 3532800-C1 and Fleetguard AF25732, making it a direct replacement option for maintenance and repair.
Applications and Problem Solving
- Prevents engine damage caused by dust and debris in international buses and trucks
- Maintains optimal airflow to improve engine efficiency
- Reduces engine wear by filtering contaminants effectively
- Helps avoid costly downtime due to clogged or inefficient air filters
- Supports compliance with engine maintenance schedules for international vehicles
Installation Notes and Tips
When installing the Baldwin RS4637 engine air filter, ensure the filter is seated properly inside the RS4636 housing to maintain an airtight seal. Verify the dimensions match the existing filter to avoid fitment issues. Regular inspection and replacement according to the vehicle manufacturer’s maintenance schedule will help sustain engine performance.
Quality Assurance
Baldwin filters are manufactured to meet industry standards for filtration and durability. The RS4637 model is designed to provide consistent performance in demanding environments typical of international buses and trucks. While no specific warranty information is provided, Baldwin’s reputation in the air and fuel delivery category supports reliable product quality.
| Brand | Baldwin |
| Part Number | RS4637 |
| Fits | "international buses, trucks" |
| Fits Inside | {rs4636} |
| Height | 15 11/32 |
| Height (mm) | 389.7 |
| Inside Diameter 1 | 5 1/32 |
| Inside Diameter 1 (mm) | 127.8 |
| Outside Diameter 1 | 3 1/2 |
| Outside Diameter 1 (mm) | 88.9 |
| Outside Diameter 2 | 8 1/32 |
| Outside Diameter 2 (mm) | 204 |
| Remark 1 | To |
| Remark 2 | One end |
| Replaces | International 3532800-c1; fleetguard af25732 |
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* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.