3946 National Seal Transfer Case Input Shaft Seal OE Replacement
3946 National Seal Transfer Case Input Shaft Seal OE Replacement
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3946 National Seal Transfer Case Input Shaft Seal OE Replacement
Experience exceptional reliability and performance with the 3946 National Seal Transfer Case Input Shaft Seal. Designed to meet the highest quality standards, this seal is a perfect OE replacement for your vehicle's needs.
Key Features:
- Low Swell in Hydrocarbon Fluids: Ensures durability and long-lasting performance even in challenging conditions.
- Spring Loaded, Multi-Lip Design: Provides a superior seal that prevents leaks and maintains optimal fluid levels.
- Excellent Low Temperature Capability: Functions effectively in a wide range of temperatures, ensuring reliability in all environments.
- Quality and Reliable Performance: Perfect for every type of repair, ensuring that your vehicle operates at its best.
- Limited 90 Day Warranty: Purchase with confidence knowing that your investment is protected.
Specifications:
- Inside Diameter: 1-7/8 Inch
- Material: Nitrile
- Outside Diameter: 2.754 Inch
- Quantity: Single
- Thickness: 1/2 Inch
Upgrade your vehicle's transfer case with the 3946 National Seal Transfer Case Input Shaft Seal and enjoy peace of mind knowing that you have chosen a product that emphasizes quality, durability, and performance.
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Shipping & Returns
Shipping & Returns
📦 Shipping:
Orders are processed within 1–2 business days. Standard delivery takes 3–7 business days, depending on your location.
↩️ Returns:
You may return or exchange products within 60 days of receiving your order. Items must be in original condition with proof of purchase. If your item is defective or damaged due to manufacturing issues, we’ll replace it at no additional cost.

