---
product_id: 14230153
title: "Rear Differential Cover 01-12 Chevy Silverado & GMC Sierra 2500 3500 6.6L Diesel & 8.1L Gas w/ Full floating Axle 14-11.5"
brand: "mag-hytec"
price: "₱59206"
currency: PHP
in_stock: true
reviews_count: 8
url: https://www.desertcart.ph/products/14230153-rear-differential-cover-01-12-chevy-silverado-and-gmc-sierra
store_origin: PH
region: Philippines
---

# Drain plug feature Overall height: 3 5/8" Bolt kit included Rear Differential Cover 01-12 Chevy Silverado & GMC Sierra 2500 3500 6.6L Diesel & 8.1L Gas w/ Full floating Axle 14-11.5

**Brand:** mag-hytec
**Price:** ₱59206
**Availability:** ✅ In Stock

## Summary

> 🚗 Upgrade Your Ride with Confidence!

## Quick Answers

- **What is this?** Rear Differential Cover 01-12 Chevy Silverado & GMC Sierra 2500 3500 6.6L Diesel & 8.1L Gas w/ Full floating Axle 14-11.5 by mag-hytec
- **How much does it cost?** ₱59206 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ph](https://www.desertcart.ph/products/14230153-rear-differential-cover-01-12-chevy-silverado-and-gmc-sierra)

## Best For

- mag-hytec enthusiasts

## Why This Product

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

## Key Features

- • **🔧 Perfect Fit:** Engineered for 14 bolt-11.5 differentials, ensuring seamless installation.
- • **🌡️ Smart Design:** Top and bottom bolts removed for easy access to drain plug and temperature sensor.
- • **💪 Heavy-Duty Design:** Built to withstand the rigors of 6.6L Diesel & 8.1L Gas engines.
- • **📦 Generous Capacity:** Holds up to 8 quarts, providing optimal lubrication for your differential.
- • **🛠️ Complete Package:** Includes essential components: bolt kit, drain plug, and dip stick.

## Overview

This Rear Differential Cover is specifically designed for 01-12 Chevy Silverado and GMC Sierra 2500/3500 models with 6.6L Diesel and 8.1L Gas engines. It features a robust construction, a generous 8-quart capacity, and comes complete with a bolt kit, drain plug, and dip stick for hassle-free maintenance.

## Description

Rear Differential Cover 01-12 Chevy Silverado & GMC Sierra 2500 3500 6.6L Diesel & 8.1L Gas w/ Full floating Axle 14-11.5

## Features

- Overall height 3 5/8"
- Includes: Bolt kit, Drain Plug and Dip Stick.
- Capacity: 8 Quarts
- This cover is the correct cover for your 14 bolt-11.5 differential, even though there are only 12 holes. The top and bottom bolts have been removed for drain plug and temperature sending unit hole.

## Images

![Rear Differential Cover 01-12 Chevy Silverado & GMC Sierra 2500 3500 6.6L Diesel & 8.1L Gas w/ Full floating Axle 14-11.5 - Image 1](https://m.media-amazon.com/images/I/51-Zl2D8B8L.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ 5.0 out of 5 stars







  
  
    Functional and good looking upgrade
  

*by P***. on Reviewed in the United States on January 28, 2014*

I purchased this cover for my 2007 NBS Silverado 2500HD to help increase fluid capacity as well as aid in keeping the axle cool. Having used a similar Mag-Hytec diffy lid on my '89 Dodge W-250 Cummins for many years with success, this was the go-to upgrade for the Chevy. The cover installs easily, and even comes with the Allen wrenches needed for installation and regular maintenance. The revised level check plug and included dipstick indications increase the fluid level in the axle enough to ensure an adequate supply of oil to the wheel bearings over stock levels, and the magnet-tipped dipstick make fluid inspection a no-mess affair. The drain plug also includes a magnet to keep metal particles out of suspension in the oil, helping with component longevity. I measured axle temperatures of about 170 deg. F during hot weather towing with this in place, where the original temps were 185-190 deg. in the same application. It's also a nice cosmetic upgrade as well.Installation note: I had to fab up a new mounting bracket for the right-side parking brake cable as the original mounting clip would no longer fit with the Hytec cover installed, and I had to slightly modify the hydraulic line block mounting bracket to fit, as well as slightly reroute the metal brake lines. Other than these issues, this is a simple upgrade. Different applications might not need these additional actions, or might require different steps to complete the installation properly. Never let any brake components remain unfastened or allow them to rub or hit moving parts such as the axle housing.

### ⭐⭐⭐⭐⭐ 5.0 out of 5 stars







  
  
    Ideal Replacement for Factory Diff Cover
  

*by M***D on Reviewed in the United States on May 18, 2021*

I installed this in a 2006 GMC 2500HD Duramax. The fit and finish are excellent and installation is really easy. The day after installation I had what I thought was a leak. I contacted Mag-Hytec via phone and they were able to diagnose it in just a couple minutes. The installation instructions recommend you put some gear oil on the o-ring before bolting it up and that oil (maybe I over did it!!!) was causing a very slight drip at the bottom of the cover. I wiped it off and there hasn't been any drip since. BTW - Mag-Hytec instantly offered to replace the o-ring if the drip didn't stop. Very good customer service.

### ⭐⭐⭐⭐⭐ 5.0 out of 5 stars







  
  
    Nice add on for towing and good looks
  

*by J***H on Reviewed in the United States on October 12, 2015*

I installed this on my 2007 gmc duramax crew cab.  The install was pretty straight forward. The cover eliminates a couple bolts. The top center bolt holds a bracket that holds the emergency brake cable for the right rear tire. I had to bend the bracket to a 90 degrees over and then slide the bracket over a little.  But not that big of a deal.  The stock bolts came out easy. It took about 15 min and a metal scrape to remove the old gasket to a smooth surface. With a light layer of oil on the new o ring the cover seated and lined up nicely.  The specs called for 12 to 16 for pounds of torque on the Allen bolts.  So a torque wrench and the correct Allen size socket is in order.  You don't want to over tighten. Because it will crush the O ring.  On the duramax  it raised the oil capacity to 8 quarts total.  What I didn't get is there is a hole in the middle of the cover for oil to come out of , it takes 7 quarts to get to that point.  But then you add an additional 3 quarts to get to the upper line on the dip stick so the oil hole is pointless.

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*Product available on Desertcart Philippines*
*Store origin: PH*
*Last updated: 2026-03-07*