---
product_id: 14295013
title: "Empi 3147 Rack & Pinion 14\" Steering Unit 5/8 x 36 Spline Rock Crawler Sand Rail"
brand: "empi"
price: "฿20177"
currency: THB
in_stock: true
reviews_count: 8
url: https://www.desertcart.co.th/products/14295013-empi-3147-rack-and-pinion-14-steering-unit-5-8
store_origin: TH
region: Thailand
---

# 14" aluminum rack & pinion unit 36-spline precision shaft 5/8" diameter heavy-duty shaft Empi 3147 Rack & Pinion 14" Steering Unit 5/8 x 36 Spline Rock Crawler Sand Rail

**Brand:** empi
**Price:** ฿20177
**Availability:** ✅ In Stock

## Summary

> 🛻 Take command of every trail with precision and power!

## Quick Answers

- **What is this?** Empi 3147 Rack & Pinion 14" Steering Unit 5/8 x 36 Spline Rock Crawler Sand Rail by empi
- **How much does it cost?** ฿20177 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.th](https://www.desertcart.co.th/products/14295013-empi-3147-rack-and-pinion-14-steering-unit-5-8)

## Best For

- empi enthusiasts

## Why This Product

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

## Key Features

- • **Optimized Fit for Off-Road Legends:** Designed specifically for rock crawlers, sand rails, and dune buggies—upgrade your ride’s steering game.
- • **Lightweight Yet Rugged Aluminum Build:** Durable aluminum housing balances strength with weight savings for agile handling.
- • **End Load Design for Enhanced Durability:** Built to withstand intense off-road stress, giving you confidence on every trail.
- • **Precision Engineering for Ultimate Control:** 36-spline shaft ensures rock-solid steering accuracy on the toughest terrains.
- • **Compact 14" Width for Seamless Installation:** Perfectly sized to fit your custom build without compromise.

## Overview

The Empi 3147 Rack & Pinion Steering Unit is a 14-inch wide, aluminum-bodied steering upgrade featuring a robust 5/8-inch diameter shaft with 36 splines. Engineered for off-road vehicles like rock crawlers and sand rails, it offers precise steering control with a durable end load design, making it the go-to choice for enthusiasts demanding performance and reliability.

## Description

RACK AND PINION UNITEMPI 00-3147-0 is a Rack and Pinion Steering Unit designed for off-road vehicles like rock crawlers and sand rails.Key Features:Material: Aluminum housing.Compatibility: Suitable for lightweight vehicles, including dune buggies and sand rails.Dimensions: 14 inches wide from hole to hole.Shaft: 5/8 inch diameter with 36 splines.Mounting Holes: Four mounting holes with a spread of 2-1/4 inches on the outer ones and 1-3/4 inches on the inner ones.Function: Provides precise steering control with 1-1/2 turns lock to lock.Special Features: End load design.This rack and pinion unit is ideal for those looking to upgrade their off-road vehicle's steering system for better performance and control.3147 - 14" Rack & Pinion Unit - 5/8 - 36 Spline.

## Features

- 36 Spline 5/8" Diameter Shaft
- End Load Rack & Pinion
- Aluminum Material

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Brand | EMPI |
| Item dimensions L x W x H | 14 x 3 x 2.5 inches |
| Mounting Type | U-Bolt |
| OEM Part Number | EMPI 00-3147-0 |
| Automotive Fit Type | Vehicle Specific Fit |
| Manufacturer | Empi |
| UPC | 707924319446 |
| Item Weight | 1.85 pounds |
| Product Dimensions | 14 x 3 x 2.5 inches |
| Manufacturer Part Number | 00-3147-0 |

## Product Details

- **Vehicle Service Type:** Dune Buggy
- **Material:** Aluminum
- **Brand:** EMPI
- **Item dimensions L x W x H:** 14 x 3 x 2.5 inches
- **Item Weight:** 1.9 Pounds
- **Is Foldable:** No
- **Mounting Type:** U-Bolt
- **OEM Part Number:** EMPI 00-3147-0
- **Automotive Fit Type:** Vehicle Specific Fit
- **Manufacturer:** Empi

## Images

![Empi 3147 Rack & Pinion 14" Steering Unit 5/8 x 36 Spline Rock Crawler Sand Rail - Image 1](https://m.media-amazon.com/images/I/41pwSEB36CL.jpg)

## Questions & Answers

**Q: what is rack to pinion ratio of this item?**
A: 1 to 1

**Q: What are the outer dimensions of this rack and pinion assembly? how many turns lock to lock? and how much total travel?**
A: Hi,The rack measures 14" wide from heim to heim. Total travel of the rack is about 7 inches.  Thanks,Austen

**Q: What is the hole size of the heim joints?**
A: The size is 0.373

**Q: Are the Heim Joints threaded into the ends?**
A: Yes, the Heim joints thread on at the ends.

## Customer Reviews

### ⭐⭐⭐⭐⭐ good quality
*by K***R on May 7, 2020*

first off this thing is tiny, I bought it for a go kart, and its perfect but Id never use this on a rail buggy, its signifcantly smaller than a polaris rzr rack, which isnt exactly big. That being said it is super nice, the machining looks top notch, nice real lip seals on the steering shaft, zero play in the rack, easy to turn with you fingers with no spots that bind. if you want a good quality small rack this is it, if your looking for something for a dune/rail buggy Id say no.

### ⭐⭐⭐⭐⭐ Nice quality for the money
*by W***N on August 15, 2025*

Not yet installed so far the build and quality for the money is really nice Its going in my 200+ hp CrossKartMy only complaint is there's a little backlash in the rack but should work for my application

### ⭐⭐⭐ Hope it works better than it looks
*by B***. on April 23, 2025*

Fit and finish is atrocious for what this costs and how simple it is. Main body has pitting and scratches all over it. Mounting holes were full of polishing paste. Worst part is I requested a replacement because of how bad the first one looked. The replacement looks just as bad which tells me that's how they all are. Hopefully it works better than it looks.

## Frequently Bought Together

- Empi 3147 Rack & Pinion 14" Steering Unit 5/8 x 36 Spline Rock Crawler Sand Rail
- 5/8"-36 Spline X 3/4" DD Black Steering Universal Joint Single U Joint Shaft, Total Length: 83mm (3-1/4")
- Allstar Performance Steering Shaft Support, Spherical Rod End, 3/4-16 in Right Hand Male Thread, Oversized, Jam Nut, Steel, 3/4 in Steering Shaft, Kit

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**Shop now:** [https://www.desertcart.co.th/products/14295013-empi-3147-rack-and-pinion-14-steering-unit-5-8](https://www.desertcart.co.th/products/14295013-empi-3147-rack-and-pinion-14-steering-unit-5-8)

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*Product available on Desertcart Thailand*
*Store origin: TH*
*Last updated: 2026-03-02*