---
product_id: 13977006
title: "GM Genuine Parts 3987918 (03987918) Speedo Driven Gear"
brand: "gm genuine parts"
price: "¥4785"
currency: JPY
in_stock: true
reviews_count: 8
category: "Gm Genuine Parts"
url: https://www.desertcart.jp/products/13977006-gm-genuine-parts-3987918-03987918-speedo-driven-gear
store_origin: JP
region: Japan
---

# Reliable speedo accuracy Precision OE fit Durable GM-tested build GM Genuine Parts 3987918 (03987918) Speedo Driven Gear

**Brand:** gm genuine parts
**Price:** ¥4785
**Availability:** ✅ In Stock

## Summary

> ⚡ Keep your ride’s pulse perfect with GM Genuine Speedo Gear!

## Quick Answers

- **What is this?** GM Genuine Parts 3987918 (03987918) Speedo Driven Gear by gm genuine parts
- **How much does it cost?** ¥4785 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/13977006-gm-genuine-parts-3987918-03987918-speedo-driven-gear)

## 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

- • **Seamless Replacement:** Direct swap for your original speedo gear—no guesswork, no hassle
- • **Unmatched Durability:** Built to last with GM-backed quality and rigorous testing standards
- • **Peace of Mind Warranty:** 24-month unlimited mile limited warranty keeps you covered
- • **Factory-Grade Precision:** Engineered to exact GM OE specs for flawless fit and function
- • **Trusted by Professionals:** Preferred by mechanics and enthusiasts for consistent performance

## Overview

The GM Genuine Parts 3987918 Speedo Driven Gear is a factory-recommended replacement designed and tested to meet GM Original Equipment standards. It ensures precise speedometer readings and long-lasting durability, backed by a 24-month unlimited mile warranty, making it the trusted choice for maintaining your GM vehicle’s performance and reliability.

## Description

GM Genuine Parts Speedometer Driven Gears are designed, engineered, and tested to rigorous standards, and are backed by General Motors. GM Genuine Parts are the true OE parts installed during the production of or validated by General Motors for GM vehicles. Some GM Genuine Parts may have formerly appeared as ACDelco GM Original Equipment (OE).

Review: Works as advertised - Came as a two-pack.
Review: Perfect replacement exactly as original. - Perfect replacement. Arrived quickly and was an exact representation of the original part. Exactly what I needed.

## Features

- GM-recommended replacement part for your GM vehicle’s original factory component
- Offering the quality, reliability, and durability of GM OE
- Manufactured to GM Original Equipment specifications for fit, form, and function
- 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 | B000J6Z9TC |
| Best Sellers Rank | #585,075 in Automotive ( See Top 100 in Automotive ) #53 in Automotive Replacement Automatic Drive Gear Bearings |
| Brand | GM GENUINE PARTS |
| Brand Name | GM GENUINE PARTS |
| Customer Reviews | 4.3 out of 5 stars 41 Reviews |
| Global Trade Identification Number | 00036666071368 |
| Included Components | ACDelco - Automatic Trans (Slp) (3987918) |
| Item Dimensions | 2.9 x 2.5 x 1.1 inches |
| Item Type Name | ACDelco - Automatic Trans (Slp) (3987918) |
| Item Weight | 9.07 g |
| Item dimensions L x W x H | 2.9 x 2.5 x 1.1 inches |
| Manufacturer | ACDelco |
| Model | 3987918 |
| Number of Items | 1 |
| Number of Packs | 1 |
| Part Number | 03987918 |
| Thread Style | Npt |
| Thread Type | Npt |
| UPC | 036666071368 |
| Unit Count | 1 Count |
| Warranty Description | 24 Month / Unlimited Mile Limited Warranty on parts sold on or after 04/01/18. (Parts Only) Please see ACDelco.com for more details. |

## Product Details

- **Brand:** GM GENUINE PARTS
- **Item Weight:** 9.07 g
- **Item dimensions L x W x H:** 2.9 x 2.5 x 1.1 inches
- **Material:** Nylon
- **Number of Items:** 1

## Images

![GM Genuine Parts 3987918 (03987918) Speedo Driven Gear - Image 1](https://m.media-amazon.com/images/I/717HdPQsvNL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Works as advertised
*by A***K on July 12, 2026*

Came as a two-pack.

### ⭐⭐⭐⭐⭐ Perfect replacement exactly as original.
*by M***H on May 27, 2025*

Perfect replacement. Arrived quickly and was an exact representation of the original part. Exactly what I needed.

### ⭐⭐⭐⭐⭐ Fixed the issue
*by H***R on June 8, 2025*

Fixed the issue, good value

---

## Why Shop on Desertcart?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

**Shop now:** [https://www.desertcart.jp/products/13977006-gm-genuine-parts-3987918-03987918-speedo-driven-gear](https://www.desertcart.jp/products/13977006-gm-genuine-parts-3987918-03987918-speedo-driven-gear)

---

*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-10-05*