The authentic Baldwin RS3521 Radial Seal Inner Air Element is engineered for demanding applications where clean, reliable engine performance is essential. Crafted with precision, this premium air element upholds the high standards of genuine Baldwin manufacturing and is perfectly suited for RS3520 series applications – serving as an ideal replacement for NA3570B in your engine system.

Technical Specifications

• Outside Diameter (OD): 5 1/4″ (~133 mm)
• Inside Diameter (ID): 3 23/32″ (~95 mm)
• One End Length: 14 7/32″ (~361 mm)
• Weight: Approximately 1.1 lbs (0.5 kg)
• Compatibility: Designed for RS3520 series applications
• Replacement Reference: Suitable replacement for NA3570B

Applications & Benefits

This inner air element uses advanced radial seal technology to ensure a tight, leak-free fit. By blocking dust, debris, and harmful contaminants, it not only supports peak engine performance but also enhances durability under extreme conditions. Its easy installation and robust design make it an excellent choice for both everyday use and heavy-duty operations.

Our Commitment

• Ships typically within 1 business day
• Guaranteed genuine, brand-new quality backed by over 35 years of expertise
• Responsive 24/7 support to ensure your complete satisfaction

Discover more about our authentic Baldwin parts by visiting our Baldwin collection or check out our wide range of Air Filters for comprehensive vehicle care.