---
product_id: 392797626
title: "General Motors ACDelco 3987919 GM Original Equipment Automatic Transmission Speedometer Drive Gear"
brand: "gm genuine parts"
price: "€ 69.19"
currency: EUR
in_stock: true
reviews_count: 5
category: "Gm Genuine Parts"
url: https://www.desertcart.sk/products/392797626-general-motors-acdelco-3987919-gm-original-equipment-automatic-transmission-speedometer
store_origin: SK
region: Slovakia
---

# Durable transmission gear Reliable speedometer sync Precision OEM fit General Motors ACDelco 3987919 GM Original Equipment Automatic Transmission Speedometer Drive Gear

**Brand:** gm genuine parts
**Price:** € 69.19
**Availability:** ✅ In Stock

## Summary

> ⚡ Drive with precision, measure with confidence!

## Quick Answers

- **What is this?** General Motors ACDelco 3987919 GM Original Equipment Automatic Transmission Speedometer Drive Gear by gm genuine parts
- **How much does it cost?** € 69.19 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sk](https://www.desertcart.sk/products/392797626-general-motors-acdelco-3987919-gm-original-equipment-automatic-transmission-speedometer)

## Best For

- gm genuine parts enthusiasts

## Why This Product

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

## Key Features

- • **Precision OEM Fit:** Engineered to match GM’s exact specifications for seamless installation and optimal performance.
- • **Trusted Brand Legacy:** Manufactured by ACDelco, a globally recognized leader in automotive parts with a reputation for excellence.
- • **Durable Transmission Gear:** Crafted from high-quality materials to withstand wear and extend service life under demanding conditions.
- • **Reliable Speedometer Sync:** Ensures accurate speed readings by perfectly meshing with your vehicle’s speedometer cable.
- • **Plug-and-Play Compatibility:** Designed specifically for GM vehicles, including popular models like TH350 and Muncie M21, for hassle-free upgrades.

## Overview

The General Motors ACDelco 3987919 Speedometer Drive Gear is an OEM-quality transmission component designed to deliver precise speedometer readings and long-lasting durability. Engineered to fit GM vehicles perfectly, it ensures reliable performance and easy installation, backed by ACDelco’s trusted manufacturing standards.

## Description

ACDelco GM Original Equipment Speedometer Drive Gear is mounted on the transmission output shaft. The speedometer drive gear meshes with the driven gear, which connects to the speedometer cable and mechanical speedometer. This original equipment speedometer gear has been manufactured to fit your GM vehicle, providing the same performance, durability, and service life you expect from General Motors.

Review: Fits in my th350
Review: Fit my Muncie M21. Using it with the Dakota digital speedo sensor.

## Features

- leading manufacturer of high-quality products
- international renown for our diverse range of award-winning products
- fully equipped with state-of-the-art technology
- all products have been designed with the professional in mind
- constantly modernizing our powerful devices to meet the demands of the modern user.Oem equivalent part number: 03987919

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0013FFINK |
| Brand | GM GENUINE PARTS |
| Customer Reviews | 4.5 4.5 out of 5 stars (121) |
| Date First Available | 7 August 2012 |
| Item Weight | 9.07 g |
| Item model number | 3987919 |
| Manufacturer | ACDelco |
| Manufacturer Part Number | 03987919 |
| Model | ACDelco - Automatic Trans (Slp) (3987919) |
| OEM Part Number | 03987919 |
| Product Dimensions | 7.62 x 6.35 x 2.79 cm; 9.07 g |

## Product Details

- **Brand:** GM GENUINE PARTS
- **Item dimensions L x W x H:** 7.6 x 6.4 x 2.8 centimeters
- **Item weight:** 9 g
- **Material:** Plastic
- **UPC:** 036666071375

## Images

![General Motors ACDelco 3987919 GM Original Equipment Automatic Transmission Speedometer Drive Gear - Image 1](https://m.media-amazon.com/images/I/51yw-ODI-oL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by L***S on 31 May 2024*

Fits in my th350

### ⭐⭐⭐⭐⭐ Review
*by S***P on 13 December 2024*

Fit my Muncie M21. Using it with the Dakota digital speedo sensor.

### ⭐⭐⭐⭐⭐ Review
*by C***B on 20 August 2020*

Thank you for getting this shipped so quickly!.

## Frequently Bought Together

- General Motors GM Genuine Parts 3987919 Automatic Transmission Speedometer Drive Gear
- La Speedometer Gear 345215 Chevy TH350 type Bullet speedometer gear housing with oring and seal plus an extra seal kit
- GM Genuine Parts 3860347 Automatic Transmission Yellow Speedometer Driven Gear

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**Shop now:** [https://www.desertcart.sk/products/392797626-general-motors-acdelco-3987919-gm-original-equipment-automatic-transmission-speedometer](https://www.desertcart.sk/products/392797626-general-motors-acdelco-3987919-gm-original-equipment-automatic-transmission-speedometer)

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*Product available on Desertcart Slovakia*
*Store origin: SK*
*Last updated: 2026-02-01*