---
product_id: 34004701
title: "Melling Timing Chain Tensioner - BT403"
brand: "melling"
price: "€ 5.87"
currency: EUR
in_stock: false
reviews_count: 8
url: https://www.desertcart.hr/products/34004701-melling-timing-chain-tensioner-bt403
store_origin: HR
region: Croatia
---

# 5 x 3.5 x 2 in Machined exterior 0.8 lbs Melling Timing Chain Tensioner - BT403

**Brand:** melling
**Price:** € 5.87
**Availability:** ❌ Out of Stock

## Summary

> 🔧 Elevate Your Engine Game!

## Quick Answers

- **What is this?** Melling Timing Chain Tensioner - BT403 by melling
- **How much does it cost?** € 5.87 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.hr](https://www.desertcart.hr/products/34004701-melling-timing-chain-tensioner-bt403)

## Best For

- melling enthusiasts

## Why This Product

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

## Key Features

- • **Trusted Brand:** Melling - a name synonymous with quality.
- • **Compact Dimensions:** Fits seamlessly into your engine setup.
- • **Lightweight Design:** Weighs only 0.8 lbs for easy handling.
- • **Single Unit Package:** Conveniently packaged for your automotive needs.
- • **Precision Engineering:** Crafted for optimal performance and durability.

## Overview

The Melling Timing Chain Tensioner BT403 is a high-quality auto part designed for precision and reliability. With compact dimensions of 5 x 3.5 x 2 inches and a lightweight design of just 0.8 pounds, this tensioner is engineered to enhance your vehicle's performance. Manufactured by Melling, a trusted name in the industry, this product ensures optimal functionality and durability for your engine.

## Description

Melling Timing Chain Tensioner - BT403

Review: Works great! - Exactly what I needed for my 2005 F150 5.4L 3v FX4.
Review: 5.4l ford - Replace the plastic one with these. You won't regret it.

## Features

- Timing Chain Tensioner
- Item Package Dimension: 6.0L x 5.3W x 3.4H inches
- Item Package Weight - 0.8 Pounds
- Item Package Quantity - 1
- Product Type - AUTO PART

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B004A66EIW |
| Best Sellers Rank | #530,735 in Automotive ( See Top 100 in Automotive ) #167 in Automotive Replacement Engine Timing Part Chains |
| Brand | Melling |
| Customer Reviews | 4.8 4.8 out of 5 stars (109) |
| Date First Available | October 31, 2010 |
| Exterior | Machined |
| Item Weight | 13.1 ounces |
| Item model number | BT403 |
| Manufacturer | Melling |
| Manufacturer Part Number | BT403 |
| Model | Timing Chain Tensioner |
| Product Dimensions | 5 x 3.5 x 2 inches |

## Images

![Melling Timing Chain Tensioner - BT403 - Image 1](https://m.media-amazon.com/images/I/61CBO2N3IbL.jpg)
![Melling Timing Chain Tensioner - BT403 - Image 2](https://m.media-amazon.com/images/I/61t8UgK+siL.jpg)
![Melling Timing Chain Tensioner - BT403 - Image 3](https://m.media-amazon.com/images/I/61xAxFq2s0L.jpg)
![Melling Timing Chain Tensioner - BT403 - Image 4](https://m.media-amazon.com/images/I/61ZvL0Glv0L.jpg)

## Questions & Answers

**Q: Do you use sealant with these tensioners? What is the torque spec.**
A: No sealant needed, The two different metals will make its own bond

**Q: What is the warranty on these parts**
A: I’d call melling, I bought the set last year to replace the failed Ford ones. A year later, no issues they seal right to the block and are self adjusting to chain tension. They’re worth the dough. Melling makes great aftermarket parts. Check out their oil pump replacements if your are doing the timing job on your 5.4 3 valve!

**Q: Are these the new design?  The seals are very prone to failing on the original design.**
A: Not necessarily a new design, but these are a new replacement for the original plastic ones. These melling cast iron tensioner are by far the best. I always order melling parts. You should definitely get these tensioners and the melling m360 oil pump.

**Q: Fits on 2004 f150 5.4 3v ? New body style**
A: yes

## Customer Reviews

### ⭐⭐⭐⭐⭐ Works great!
*by A***R on October 21, 2024*

Exactly what I needed for my 2005 F150 5.4L 3v FX4.

### ⭐⭐⭐⭐⭐ 5.4l ford
*by G***Y on February 16, 2026*

Replace the plastic one with these. You won't regret it.

### ⭐⭐⭐⭐⭐ Two thumbs up
*by R***N on June 24, 2025*

Perfectt

## Frequently Bought Together

- Melling Timing Chain Tensioner - BT403
- Melling Timing Chain Tensioner - BT402
- Melling Hi Volume Oil Pump 4.6 5.4 Modular Ford 20% more volume than stock, Model Number: M340HV

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*Product available on Desertcart Croatia*
*Store origin: HR*
*Last updated: 2026-04-23*