---
product_id: 33465970
title: "Ford F5RZ6A340B F5RZ-6A340-B Engine Crankshaft Pulley Bolt"
brand: "ford"
price: "247 Lei"
currency: RON
in_stock: true
reviews_count: 13
category: "Ford"
url: https://www.desertcart.ro/products/33465970-ford-f5rz6a340b-f5rz-6a340-b-engine-crankshaft-pulley-bolt
store_origin: RO
region: Romania
---

# 50mm length exact fit 12mm x 1.5 thread precision Made in USA quality Ford F5RZ6A340B F5RZ-6A340-B Engine Crankshaft Pulley Bolt

**Brand:** ford
**Price:** 247 Lei
**Availability:** ✅ In Stock

## Summary

> 🔧 Lock in your ride’s heartbeat with Ford’s precision crankshaft pulley bolt!

## Quick Answers

- **What is this?** Ford F5RZ6A340B F5RZ-6A340-B Engine Crankshaft Pulley Bolt by ford
- **How much does it cost?** 247 Lei with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ro](https://www.desertcart.ro/products/33465970-ford-f5rz6a340b-f5rz-6a340-b-engine-crankshaft-pulley-bolt)

## Best For

- ford enthusiasts

## Why This Product

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

## Key Features

- • **Precision Engine Fit:** Specifically engineered for 2010 Ford F150 5.4L engine code 'V' ensuring perfect compatibility.
- • **Trusted by Thousands:** Rated 4.8/5 by over 700 customers, a top choice for automotive replacement bolts.
- • **Compact & Lightweight:** Weighs just 2.39 ounces with compact dimensions for easy installation and handling.
- • **OEM Quality Assurance:** Genuine Ford part guaranteeing factory-level reliability and performance.
- • **Durable Machined Finish:** Crafted with a machined exterior for enhanced strength and longevity under high torque conditions.

## Overview

The Ford F5RZ6A340B Engine Crankshaft Pulley Bolt is a genuine OEM replacement part designed for exact fitment on select Ford engines, including the 2010 F150 5.4L 'V' code. Manufactured in the USA with a machined finish, this 12mm x 1.5 thread, 50mm length bolt ensures durable, reliable performance under demanding engine conditions. Highly rated by users, it’s the trusted choice for professional-grade engine maintenance.

## Description

Ford F5RZ6A340B F5RZ-6A340-B Engine Crankshaft Pulley Bolt

Review: It's a bolt! - Purchased this as I was doing a timing chain and phaser replacement on my 2011 Ford Expedition and wasn't sure if the harmonic balancer bolt was a torque-to-yield bolt so I bought this to be safe. bolt came in a plastic bag and the threads were a little rough but not unusable, torqued fine and is holding strong so far.
Review: Bolt is a 12M x 1.5 @ ~50MM in length - Fit my 2010 F150 5.4 engine code "V" perfectly - I went round and round with Grok AI about the correct part number for this bolt on my 2010 F150 5.4 3 Valve with engine code "V". Grok insisted the correct part number was/is HL3Z-6A340-A which I purchased on eBay and it was not the correct bolt being over 2 inches longer than the OEM bolt. I ended up returning it and the owner/manager said the correct part number is F5RZ-6A340-B which he did not have and which Grok disagreed with. I used a thread gauge to check the OEM bolt and it's a 12m x 1.5 @ ~50mm in length which matches this bolt exactly. Why they do not say the bolts dimensions in the description here on desertcart is a mystery, but Rufus confirmed the dimensions which matched what I measured so I bought the bolt....and it is the correct bolt for a 2010 F150 5.4 engine code "V" What I have found is Ford used a few different crankshaft pulley bolts before and after 2010 so it's best to remove the bolt and check before buying one or get one directly from the Ford dealer....which is what I wish I had done from the beginning.

## Features

- Package Dimensions: 1.27 L x 10.16 H x 7.366 W (centimeters)
- Country of Origin : United States
- Package Weight: 0.204 kilograms
- Included components: Engine Crankshaft Pulley Bolt

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B01IQ69S66 |
| Best Sellers Rank | #73,348 in Automotive ( See Top 100 in Automotive ) #13 in Automotive Replacement Bolts |
| Brand | Ford |
| Customer Reviews | 4.8 4.8 out of 5 stars (734) |
| Date First Available | February 26, 2015 |
| Exterior | Machined |
| Is Discontinued By Manufacturer | No |
| Item Weight | 2.39 ounces |
| Item model number | F5RZ-6A340-B |
| Manufacturer | Ford |
| Manufacturer Part Number | F5RZ6A340B |
| Model | F5RZ-6A340-B |
| Package Dimensions | 5.48 x 3.11 x 1.02 inches |

## Images

![Ford F5RZ6A340B F5RZ-6A340-B Engine Crankshaft Pulley Bolt - Image 1](https://m.media-amazon.com/images/I/81dY0cfoGsL.jpg)

## Questions & Answers

**Q: Buenos días Aplica para el motor Ford 4.2L?**
A: No. Gracias por contactarnos.

**Q: Is this bolt standard rh threaded or lh threaded?**
A: right hand

**Q: Will this fit 1.6L ford fiesta**
A: NO

**Q: Ford explorer 2002  motor 4.6 v8 ?**
A: IF YOUR  CAR IS A  explorer SPORT NO BUT IF NOT THEN YES

## Customer Reviews

### ⭐⭐⭐⭐⭐ It's a bolt!
*by A***M on November 20, 2023*

Purchased this as I was doing a timing chain and phaser replacement on my 2011 Ford Expedition and wasn't sure if the harmonic balancer bolt was a torque-to-yield bolt so I bought this to be safe. bolt came in a plastic bag and the threads were a little rough but not unusable, torqued fine and is holding strong so far.

### ⭐⭐⭐⭐⭐ Bolt is a 12M x 1.5 @ ~50MM in length - Fit my 2010 F150 5.4 engine code "V" perfectly
*by E***S on September 27, 2025*

I went round and round with Grok AI about the correct part number for this bolt on my 2010 F150 5.4 3 Valve with engine code "V". Grok insisted the correct part number was/is HL3Z-6A340-A which I purchased on eBay and it was not the correct bolt being over 2 inches longer than the OEM bolt. I ended up returning it and the owner/manager said the correct part number is F5RZ-6A340-B which he did not have and which Grok disagreed with. I used a thread gauge to check the OEM bolt and it's a 12m x 1.5 @ ~50mm in length which matches this bolt exactly. Why they do not say the bolts dimensions in the description here on Amazon is a mystery, but Rufus confirmed the dimensions which matched what I measured so I bought the bolt....and it is the correct bolt for a 2010 F150 5.4 engine code "V" What I have found is Ford used a few different crankshaft pulley bolts before and after 2010 so it's best to remove the bolt and check before buying one or get one directly from the Ford dealer....which is what I wish I had done from the beginning.

### ⭐⭐⭐⭐⭐ Work as intended
*by R***I on November 15, 2025*

Worked as expected. Good product

## Frequently Bought Together

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*Product available on Desertcart Romania*
*Store origin: RO*
*Last updated: 2026-02-07*