Shopping the 80″ Black Nerf Bar Running Board 21080 For 15-17 Chevy HD Diesel Extended Cab? Everything you need to choose correctly is on this page.

Cab and bed configuration decide fitment, and a crew cab part will not serve an extended cab. Confirm cab configuration twice, because that is where most returns originate.
Drivers choose the 80″ black nerf bar running board 21080 here for honest specification detail and quick dispatch.
Buyers comparing the 80″ black nerf bar running board 21080 will find the specification detail on this page rather than in a catalog footnote.
The 80″ black nerf bar running board 21080 listed here is checked against your vehicle before dispatch.
Every 80″ black nerf bar running board 21080 order goes through the same fitment review.
Ordering the 80″ black nerf bar running board 21080 takes a minute and the confirmation reaches you straight away.
Our team knows the 80″ black nerf bar running board 21080 well, so ask if anything about the specification is unclear.
Specifications
- Finish: Black
- Category: Running Boards/Steps
- Price: $417.15 with free shipping over $99
- Availability: in stock, dispatched from the USA
Manufacturer specifications
This additional step comes with high quality gripping platforms to ensure that one does not lose balance when entering their vehicles. Not only will it serve the function of safety and fashion, it will also aid children and adults alike when entering high vehicles. With these running boards, there is no longer the need for ladders or stools to reach the top of you car. This is a great addition to your vehicle and will definitely serve you well, whatever your needs may be.
- Material: High Grade Ridged Aluminum
- Color: Black Board & End Cap
- Surface Finish: Satin
- Style: Straight Board with Angle End Cap
- Cab/Door: Extended Cab
- Loading Capacity: 300LB Each Board
- Running Board Size: 80″ Total Length, 5.5″ Wide Flat
- Step Pads: 5.5″ Aluminum Pad
- All Necessary Hardware Included for a Complete Installation
- Built From Durable, Rust-Resistant, UV resistant, no fading or cracking
- 3 Year Warranty , Product are warranted to be free of defects in material and workmanship
Application:
For (May)2015-2017 Chevrolet Silverado 2500 HD Diesel Engine ONLY (Extended Cab)
For (May)2015-2017 Chevrolet Silverado 3500 HD Diesel Engine ONLY (Extended Cab)
For (May)2015-2017 GMC Sierra 2500 HD Diesel Engine ONLY (Extended Cab)
For (May)2015-2017 GMC Sierra 3500 HD Diesel Engine ONLY (Extended Cab)
Remark: Fit Models with Diesel Engine Only
Installation: Dedicate Mounting Bracket, No Drilling
Product Content:
- 1 Pair of Running Board (Left & Right Side) as shown in the Picture above
Come with a Pack of Dedicated Mounting Hardware
The product does not come with manual/instruction, Professional Install Recommended
Cross Reference Number:
- BFC-RUNB-21080+BK-3005, RUNB-21080, BK-3005
Not sure it matches your vehicle? Send your VIN or your year, make and model and our fitment desk will confirm before you order.
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Your order is picked, inspected and packed by a person, then handed to the carrier with tracking the same day.
For safety and service guidance from outside the aftermarket, see the NHTSA tire safety guide.
Buyer questions
Can you check fitment before I order?
We verify every doubtful order by hand. Give us the year, make, model and engine option and we will confirm compatibility in one reply.
When will my order dispatch?
We ship from a USA warehouse with quick dispatch, and delivery estimates appear at checkout once you enter your address.
How do returns work here?
A straightforward returns window applies from delivery. Keep the original packaging until you have test fitted the part and contact support for a fast exchange or refund.
How do you protect it in transit?
We confirm cab configuration and bracket completeness before these orders ship.

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