NATIONAL
National 4503N Manual Transmission Extension Housing Seal
National 4503N Manual Transmission Extension Housing Seal
SKU:N194503N
Low stock
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- Genuine brand-name parts
- Ships from US warehouse
- 30-day returns
- Design type: spring loaded, multi-lip: Offers a spring-loaded design with multiple lips for enhanced sealing performance
- Temperature range: -20°F to 300°F / -29°C to 49°C: Designed for a wide temperature range, ensuring reliable performance in various conditions
- Resistance to EP lubricants: Engineered to resist extreme pressure (EP) lubricants for long-lasting use
- Low swell in hydrocarbon fluids: Demonstrates low swelling when exposed to hydrocarbon fluids, ensuring consistent sealing
- Delivers quality and reliable performance: Provides high-quality sealing solutions for all types of repairs
- Material: Polyacrylate: Constructed with polyacrylate material for durability and resistance to oxidation and ozone
- Compatible with most oils and EP lubricants: Works well with most oils and extreme pressure (EP) lubricants at higher operating temperatures
- Operating temperature range: Minus 20 degree Fahrenheit to 300 degree Fahrenheit: Withstands a wide temperature range for versatile use
| Brand | NATIONAL |
|---|---|
| Manufacturer part number | 4503N |
| UPC / GTIN | 724956131204 |
| Weight | 0.13 lb |
| Dimensions (L × W × H) | 4.8 × 2.2 × 4.8 in |
| Category | Engine & Drivetrain |
| Condition | New — genuine brand-name part |
Shipping & delivery
Shipping & delivery
Orders ship from the distributor warehouse closest to you, normally within 1–3 business days of purchase. Standard ground delivery takes 3–7 business days in the continental US; expedited options are shown at checkout. Oversized items (bumpers, running boards, large tonneau covers, some marine equipment) ship LTL freight — we contact you to schedule delivery and a signature is required.
Returns & warranty
Returns & warranty
Unused, uninstalled parts in original packaging can be returned within 30 days of delivery. A restocking fee of up to 20% may apply depending on the product and supplier, and return shipping is the buyer’s responsibility unless the item arrived defective, damaged or incorrect. Every product carries the full manufacturer warranty. Contact us with your order number to start a return.
Fitment & part numbers
Fitment & part numbers
Verify fitment with the manufacturer part number shown above and your vehicle’s year, make, model and trim. If the listing says “Fits select…”, confirm your exact application before ordering. Not sure? Send us your VIN and the part number and we’ll check it for you.
