---
product_id: 753503826
title: "National 711103 Automatic Transmission Extension Housing Seal"
brand: "national"
price: "S$17"
currency: SGD
in_stock: true
url: https://www.desertcart.sg/products/753503826-national-711103-automatic-transmission-extension-housing-seal
store_origin: SG
region: Singapore
---

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

**Brand:** national
**Price:** S$17
**Availability:** ✅ In Stock

## Summary

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

## Quick Answers

- **What is this?** National 711103 Automatic Transmission Extension Housing Seal by national
- **How much does it cost?** S$17 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sg](https://www.desertcart.sg/products/753503826-national-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 711103 Automatic Transmission Extension Housing Seal

## 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

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

---

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**Shop now:** [https://www.desertcart.sg/products/753503826-national-711103-automatic-transmission-extension-housing-seal](https://www.desertcart.sg/products/753503826-national-711103-automatic-transmission-extension-housing-seal)

---

*Product available on Desertcart Singapore*
*Store origin: SG*
*Last updated: 2026-02-28*