How often should I change the differential fluid with this cover installed?

While this cover helps keep your differential oil cooler, you should still follow the manufacturer's recommended service intervals for fluid changes. Check your owner's manual for the specific interval for your vehicle and driving conditions. More frequent changes are a good idea if you tow regularly.

Does this differential cover come with new bolts or a gasket?

The manufacturer does not specify whether new bolts or a gasket are included. You may want to purchase these items separately to ensure a leak-free installation. Refer to the manufacturer's installation instructions for details.

How do I check the oil level using the sight glass?

The pre-installed sight glass allows for quick and easy oil inspection. Simply look at the sight glass to visually inspect the oil level. The calibration plug is set to the factory oil level to prevent overfilling.

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aFe

Specifications

Brand: aFe
Part #: 46-71140B
UPC: 802959466681

aFe

aFe Pro Series GMCH 9.5 Rear Diff Cover Black w/ Machined Fins 19-20 GM Silverado/Sierra 1500

Name: aFe Pro Series GMCH 9.5 Rear Diff Cover Black w/ Machined Fins 19-20 GM Silverado/Sierra 1500
Brand: aFe
SKU: afe-afe-pro-series-gmch-9-5-rear-diff-cover-black-w-machined-fins-19-20-gm-silve-t14-394596
Price: 378.06 USD
Availability: BackOrder

$378.06

On Backorder

Order now to reserve yours — we'll ship as soon as stock arrives. Full refund if we're unable to fulfill.

Increased oil capacity and cooling fins keep your differential running cooler, longer.

Key Features

Increased oil capacity — better performance over a longer duration
Internal and external fins — transfer heat from the oil to the outside air for maximum cooling
Magnetic drain plug — captures loose particles for maximum protection
Deep reach fill plug — easy to fill
Calibration plug — set to the factory oil level to prevent overfilling
Pre-installed oil level sight glass — allows quick and easy oil inspection

⚠️ CA WARNING: This product can expose you to chemicals known to the State of California to cause cancer and/or birth defects or other reproductive harm. Learn more

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About this part

Product Details

This cover has an increased oil capacity over stock for better performance over a longer duration. Built-in internal and external fins transfer heat from the oil to the outside air for maximum cooling. This cover incorporates a magnetic drain and deep reach fill plug to capture loose particles for maximum protection. A calibration plug is set to the factory oil level to prevent overfilling. A pre-installed oil level sight glass allows quick and easy oil inspection.