---
product_id: 532400146
title: "WAAS1140 Automatic Slack Adjuster"
brand: "world american"
price: "$438.12"
currency: USD
in_stock: true
url: https://www.desertcart.us/products/532400146-waas1140-automatic-slack-adjuster
store_origin: US
region: United States of America
---

# 6 Months or 50,000 Miles Warranty ISO 9001:2008 Certified Precision Meets/Exceeds OS/QS Standards WAAS1140 Automatic Slack Adjuster

**Brand:** world american
**Price:** $438.12
**Availability:** ✅ In Stock

## Summary

> 🛠️ Keep Your Brakes Tight, Your Drive Right!

## Quick Answers

- **What is this?** WAAS1140 Automatic Slack Adjuster by world american
- **How much does it cost?** $438.12 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/532400146-waas1140-automatic-slack-adjuster)

## Best For

- world american enthusiasts

## Why This Product

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

## Key Features

- • **Seamless Installation:** No assembly required, designed for quick and hassle-free integration into your truck’s brake system.
- • **Durability You Can Trust:** Backed by a comprehensive 6-month or 50,000-mile warranty—whichever comes first.
- • **Rugged Stainless Steel Construction:** Small yet mighty, crafted from premium stainless steel with a sleek black finish for lasting strength.
- • **Precision Engineered for Reliability:** ISO 9001:2008 certification ensures top-tier quality control and consistent performance.
- • **Built to Outperform Industry Standards:** Meets or exceeds OS/QS requirements for uncompromising safety and durability.

## Overview

The World American WAAS1140 Automatic Slack Adjuster is a compact, stainless steel brake component designed for trucks. Certified to ISO 9001:2008 standards and meeting or exceeding OS/QS requirements, it guarantees reliable automatic slack adjustment. With a robust 6-month or 50,000-mile warranty and no assembly needed, it’s engineered for professional-grade durability and effortless installation.

## Description

AUTO SLACK

## Features

- Meet or exceed OS/QS requirements
- Are backed by a comprehensive warranty
- Warranty: 6 months or 50,000 miles, whichever occurs first
- ISO 9001:2008 Certification

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Size | Small |
| Material | Stainless Steel |
| Colour | Black |
| Brand | World American |
| Vehicle Service Type | Truck |
| Fastener Material | Nylon |
| Fastener Type | Buckle |
| Number of Pieces | 1 |
| Manufacturer | World American |
| Net Quantity | 1.0 count |
| UPC | 698231941089 |
| Global Trade Identification Number | 00698231941089 |
| Product Dimensions | 15.75 x 23.37 x 6.86 cm; 3.22 kg |
| Item model number | WAAS1140 |
| Manufacturer Part Number | WAAS1140 |
| OEM Part Number | AS1140 |
| Assembly Required | No |
| Country of Origin | USA |
| Item Weight | 3 kg 220 g |

## Product Details

- **Size:** Small
- **Material:** Stainless Steel
- **Colour:** Black
- **Brand:** World American
- **Vehicle Service Type:** Truck

## Images

![WAAS1140 Automatic Slack Adjuster - Image 1](https://m.media-amazon.com/images/I/61re0xscrgL.jpg)
![WAAS1140 Automatic Slack Adjuster - Image 2](https://m.media-amazon.com/images/I/61JlddOi9fL.jpg)

## Frequently Bought Together

- AUTO SLACK
- 1628-P 1628-P FRT Truck Key - Quantity 5

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**Shop now:** [https://www.desertcart.us/products/532400146-waas1140-automatic-slack-adjuster](https://www.desertcart.us/products/532400146-waas1140-automatic-slack-adjuster)

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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-05-07*