---
product_id: 258006635
title: "Mainshaft Sprocket Wrench for 1936-2006 Harley-Davidson Big Twins Engine & Twin Cam, 1 7/8 Inch Main shaft Pulley Socket Tool"
brand: "e-cowlboy"
price: "₨1470"
currency: SCR
in_stock: true
reviews_count: 5
category: "E Cowlboy"
url: https://www.desertcart.sc/products/258006635-mainshaft-sprocket-wrench-for-1936-2006-harley-davidson-big-twins
store_origin: SC
region: Seychelles
---

# 1 7/8'' socket fit 5.5 inch depth Black oxide steel Mainshaft Sprocket Wrench for 1936-2006 Harley-Davidson Big Twins Engine & Twin Cam, 1 7/8 Inch Main shaft Pulley Socket Tool

**Brand:** e-cowlboy
**Price:** ₨1470
**Availability:** ✅ In Stock

## Summary

> 🔩 Unlock your Harley’s potential with precision power!

## Quick Answers

- **What is this?** Mainshaft Sprocket Wrench for 1936-2006 Harley-Davidson Big Twins Engine & Twin Cam, 1 7/8 Inch Main shaft Pulley Socket Tool by e-cowlboy
- **How much does it cost?** ₨1470 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sc](https://www.desertcart.sc/products/258006635-mainshaft-sprocket-wrench-for-1936-2006-harley-davidson-big-twins)

## Best For

- e-cowlboy enthusiasts

## Why This Product

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

## Key Features

- • **Ergonomic Design:** 5.5-inch deep wrench with 1/2" drive and threaded bushing for secure, easy handling.
- • **Robust & Durable Build:** Crafted from high-quality alloy steel with black oxide finish for ultimate rust resistance.
- • **Effortless Pulley Maintenance:** Specifically engineered to remove/install 1 7/8'' nut locking transmission pulleys quickly.
- • **Trusted by Pros & Enthusiasts:** Highly rated (4.7/5) with proven reliability on classic Harley transmissions.
- • **Precision Fit for Harley Big Twins:** Fits 1936-2006 models & Twin Cam (except 06 Dyna) for seamless compatibility.

## Overview

The Mainshaft Sprocket Wrench is a precision-engineered tool designed for Harley-Davidson Big Twins (1936-2006) and Twin Cam models, featuring a 1 7/8 inch socket and 5.5-inch depth. Made from durable alloy steel with a corrosion-resistant black oxide finish, it ensures long-lasting performance for removing and installing transmission pulley nuts. Trusted by mechanics and enthusiasts alike, this wrench delivers professional-grade reliability for efficient belt and sprocket maintenance.

## Description

▶Compatible with 1936-2006 Big Twins 1999-2006 Twin Cam ▶Features: Main Shaft Sprocket Wrench Tool is for 1 7/8''nut. Aftermarket 6-speeds, Except 06 Dyna. ▶Note: 1.Fits 1/2 Ratchet /Breaker bar. Not recommended for impact gun use. 2.Designed to remove & install the 1 7/8'' nut locking the trans pulley in position. 3.Please confirm whether your Engine is suitable in the list above Before Purchasing 4.Be sure to change the Large Output shaft , behind the pulley and shifter and main gear seal, otherwise when it goes later on you will have to redo whole job again!!

Review: Worked exactly as it should. Seems to be a good quality and did the job I needed it to do. Would recommend
Review: Works A1 on a Shovelhead 4 speed transmission ; even the round ''donut'' adaptor has the right thread. Bought in july '25.

## Features

- FITMENT-- This tool is a Main Shaft Sprocket Wrench Tool for all Harley front transmission pulley 1 7/8 socket sprocket. It will fit 1936-2006 Big Twins, 1999-2006 Twin Cam, except 06 Dyna.
- NICE DESIGN -- Back of the tool has a 1/2" Drive, with a Threaded Bushing. The tool is 5.5 inch deep.
- FUNCTION ?Designed to remove & install the 1 7/8'' nut locking the trans pulley in position, makes changing belts pulleys or sprockets easily and quickly.
- SUPERIOR QUALITY ? Made of high quality steel coated with black oxide finish for rust and corrosion resistain, ensures an unparalleled long lifespan.
- International products have separate terms, are sold from abroad and may differ from local products, including fit, age ratings, and language of product, labeling or instructions.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B08GSCZSY9 |
| Best Sellers Rank | 143,211 in Automotive ( See Top 100 in Automotive ) 74 in Motorbike Sprockets |
| Brand | E-cowlboy |
| Customer Reviews | 4.7 4.7 out of 5 stars (600) |
| Date First Available | 27 Aug. 2020 |
| Item Weight | 1.28 kg |
| Material | Alloy Steel |
| Model Number | YM178 |
| Package Dimensions | 17.6 x 7.19 x 6.91 cm; 1.28 kg |

## Product Details

- **Brand:** E-cowlboy
- **Finish type:** Powder Coated
- **Item length:** 1.87 Inches
- **Material:** Alloy Steel
- **Number of pieces:** 1

## Images

![Mainshaft Sprocket Wrench for 1936-2006 Harley-Davidson Big Twins Engine & Twin Cam, 1 7/8 Inch Main shaft Pulley Socket Tool - Image 1](https://m.media-amazon.com/images/I/716SMUYYkiL.jpg)

## Questions & Answers

**Q: will work 2018 road glide ultra?**
A: Yes the 2-1/4 works on the 2018 models.

**Q: Does it fit an '07 fxdwg?**
A: I think you need a 2 1/4" for an '07, this one is 1 7/8"

**Q: Will  work on an 08 street glide**
A: As long as it has the 21/4 nut on it

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by B***Y on 24 October 2025*

Worked exactly as it should. Seems to be a good quality and did the job I needed it to do. Would recommend

### ⭐⭐⭐⭐⭐ Review
*by C***N on 21 July 2025*

Works A1 on a Shovelhead 4 speed transmission ; even the round ''donut'' adaptor has the right thread. Bought in july '25.

### ⭐⭐⭐⭐⭐ Review
*by J***Ö on 14 December 2025*

Works well and the price is unbeatable. The nut on my Dyna was very tight so I had to hammer it with a big impact to get it off and the socket held out just fine.

## Frequently Bought Together

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*Product available on Desertcart Seychelles*
*Store origin: SC*
*Last updated: 2026-02-09*