SKU: 35110570994

HSP BILLET VALVE COVERS (2011-2016 CHEVY / GMC)

Sale price$177.75 Regular price$197.50
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Ships within 48 hours · Estimated delivery Aug 15 - Aug 20

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Description

HSP BILLET VALVE COVERS (2011-2016 CHEVY / GMC)Due to HSP's current order volumes, we are expecting most HSP products to ship out in 2 8 weeks from the date of purchase. If you would like a more accurate lead time please contact us directly. The 546 HSP or best known as the HSP Billet Valve Covers for the 2011 2016 LML Duramax equipped Chevrolet and GMC trucks. The HSP Billet Valve Covers is a game changer for the engine bay in the LML Duramax. Why would you need the HSP Billet Valve Covers for

Due to HSP's current order volumes, we are expecting most HSP products to ship out in 2-8 weeks from the date of purchase. If you would like a more accurate lead time please contact us directly.

 

The 546-HSP or best known as the HSP Billet Valve Covers for the 2011-2016 LML Duramax equipped Chevrolet and GMC trucks. The HSP Billet Valve Covers is a game-changer for the engine bay in the LML Duramax.

 

Why would you need the HSP Billet Valve Covers for the 2011-2016 LML Duramax?

The factory valve covers on the LML Duramax are less than stellar when compared to the rest of the engine bay. People have seen that when making changes to their engine bay and adding parts to clean up the engine bay the valve covers have always been overlooked. HSP Diesel saw this and this is why we went to work on the HSP Billet Valve Covers.

 

What do the HSP Billet Valve Covers do differently?

We start with the material we use on the HSP Billet Valve Covers, we use 6061 T6 aluminum. We do this because we want something that is going to hold up and show off our awesome CNC Billet machined parts. With the construction being of metal, you are able to have a powder-coated piece that sets off that engine bay and holds up to the elements.

Our additional breather kit will include all the necessary hardware to route the breathers behind the front cab mounts. This reroute will feature a 1/2 Inch NPT to -10AN aluminum 90 degree fitting to a -10AN nylon braided hose on each valve cover. This is an additional product that is not included with the standard valve covers. You must select the crankcase ventilation kit in the drop-down menu if you wish to purchase it.

 

What comes with the HSP Billet Valve Covers?

  • (1) Drivers side valve cover
  • (1) Passenger side valve cover
  • (36) M6x1.0x16mm Socket Cap Bolts
  • (4) M4-0.7x6mm Socket Cap Screws

 

*Special Note*

Running Change on these parts. These valve covers no longer come with O-Ring's we recommend using Grey RTV to create a proper seal.

 

What Does the HSP Billet Valve Covers fit?

  • LML: 11+ VIN Code 8

 

How do people know the VIN code?

Engine code is dictated by the 8th character of the VIN number. The 10th character is the year of the truck.

 

Overview

  • 6061 T6 Aluminum Material
  • O-Ring Seal
  • 1/2 Inch NPT Port
  • CNC Billet Machined
  • Powder coat options to enhance the engine bay

 

Our Warranty

HSP No BS Limited Lifetime Warranty

At HSP we believe in our products and we stand firmly behind every single one that leaves our facility. For years we have taken care of almost everything and anything that our customers had issues with, but we didn't have a set in stone warranty. We have always gone above and beyond for our customers which set us apart from the rest. We will continue that same standard, but now we are taking things to the next level.

 

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 35110570994

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Ambleside mom
Charlottesville, US
★★★★★ 3
has some positives and negatives
The bookcases are very sturdy and look very nice. The instructions are easy to follow and they are good value for money (compared to other prices these days) The negatives are that the back is hard to have on exactly flush as they should be. The back panel is taped together poorly and is the main reason for the panels not lining up. I made it work with some creativity though. My main issue is that one of the main shelves (part 3) had the holes drilled backward and so you had to assemble it with the bare wood facing out. I will paint this to get a close match. You can't replace just one part and I didn't want to return the 80 lb package and go the refund route
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Reviewed in the United States on February 25, 2026
C
Verified Purchase
Clemson Z
Omaha, US
★★★★★ 1
poor quality
the middle connection is so weak, resulting separate when moving. so poor quality, not recommended. better to buy Sander etc other brands
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Reviewed in the United States on April 26, 2026
A
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Amazon Customer
New York, US
★★★★★ 4
Time
There are a lot of pieces to put together but instructions are provided that help so it only takes time.
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Reviewed in the United States on November 7, 2025
G
Verified Purchase
Geospatialdude
Fort Morgan, US
★★★★★ 3
Be careful while assembling!
I have bought similair bookcases in the past...long time ago. I thought the quality back then was poor, because it was made out of compressed sawdust with glue ( composite). But these shelves are slightly less quality of those of long ago. The company has made great strides at providing the pieces with pre-drilled holes with excellent precision. However, the composite material does not have quite enough glue mixed within. So the material is ever so slightly crumbly. So once you screw in a screw, don't remove it, because if you do the screw will not hold as good. I reccomend that you add a drop of glue into each hole during assembly. The rotating screw locks are made of cheap pot-metal that will snap if you crank too hard on your screwdriver. The good news is the kit comes with plenty of extra screws, wooden dowels, and such.
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Reviewed in the United States on December 15, 2025
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Randy Deasy
Belleville, US
★★★★★ 5
Not to thick or thin well made
Size: Medium, Color: (601) Bittersweet Pink / Stone / Stone
I bought pink so as not to lose when doing laundry with my daughter who steels all socks lol!
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Reviewed in the United States on May 8, 2026

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