---
product_id: 753503826
title: "711103 Automatic Transmission Extension Housing Seal"
brand: "national"
price: "$42.42"
currency: USD
in_stock: true
category: "National"
url: https://www.desertcart.us/products/753503826-711103-automatic-transmission-extension-housing-seal
store_origin: US
region: United States of America
---

# Operates from -20°F to 300°F Spring-loaded multi-lip design Resistant to EP lubricants & hydrocarbons 711103 Automatic Transmission Extension Housing Seal

**Brand:** national
**Price:** $42.42
**Availability:** ✅ In Stock

## Summary

> 🔧 Seal the deal with confidence — reliability that keeps your ride smooth!

## Quick Answers

- **What is this?** 711103 Automatic Transmission Extension Housing Seal by national
- **How much does it cost?** $42.42 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/753503826-711103-automatic-transmission-extension-housing-seal)

## Best For

- national enthusiasts

## Why This Product

- Trusted national brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Trusted Legacy:** Backed by National’s 75+ years of premium sealing innovation.
- • **Compact & Lightweight:** Sleek 0.8 oz design fits seamlessly without adding bulk.
- • **Chemical Compatibility:** Low swell in hydrocarbon fluids ensures long-lasting durability.
- • **Wide Temperature Resilience:** Performs flawlessly from freezing cold to high-heat conditions (-20°F to 300°F).
- • **Precision Spring-Loaded Seal:** Engineered for a tight, reliable fit that adapts under pressure.

## Overview

The National 711103 Automatic Transmission Extension Housing Seal features a spring-loaded multi-lip design that ensures superior sealing performance. It operates efficiently across a broad temperature range (-20°F to 300°F) and resists swelling in hydrocarbon fluids and EP lubricants. Manufactured by DRiV Incorporated, this compact, lightweight seal is engineered for durability and trusted by professionals for over 75 years.

## Description

National® has built a reputation as one of the most respected names in the industry. We have offered premium sealing solutions for more than 75 years. Our design team keeps pace with the industry and provides advanced solutions for today’s vehicles.

## Features

- Design type: spring loaded; multi-lip
- Temperature range: -20°F to 300°F / -29°C to 49°C
- Protection from EP lubricants
- Low swell in hydrocarbon fluids
- Delivers quality and reliable performance for every type of repair

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | DRiV Incorporated |
| Brand | National |
| Model | Automatic Transmission Extension Housing Seal |
| Item Weight | 0.8 ounces |
| Product Dimensions | 0.8 x 2.8 x 2.8 inches |
| Country of Origin | Taiwan |
| Item model number | 711103 |
| Exterior | Machined |
| Manufacturer Part Number | 711103 |

## Images

![711103 Automatic Transmission Extension Housing Seal - Image 1](https://m.media-amazon.com/images/I/71JHTy4MYDL.jpg)
![711103 Automatic Transmission Extension Housing Seal - Image 2](https://m.media-amazon.com/images/I/81oai9N38jL.jpg)

---

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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-05-06*