The 637-2-HSP is best known as the HSP Upper Coolant Tube for the 2020-2024 L5P Duramax-equipped Chevrolet and GMC trucks.
Why would you need the HSP Upper Coolant Tube for the 2020-2024 L5P Trucks?
The factory upper coolant tube is a piece that just looks out of place. While the factory part works alright, it can fail due to the construction and the overall look just does not do the L5P engine the justice that it deserves.
What does the HSP Upper Coolant Tube do differently?
To start us out the HSP Upper Coolant Tube is made of aluminum. This was done to prevent cracking that can cause cooling system failures. We also made it out of aluminum because we wanted you to be able to clean up the engine bay in that L5P Duramax. With powder coat options and the HSP Diesel logo that sits right up top, you can see the difference between the HSP Upper Coolant Tube and the factory piece immediately. We used slight bends to create the perfect drop-in piece. This creates a piece that will fit with all factory parts and gives the best flow through the Upper Coolant Tube possible. This part requires no modifications to install and can be done quickly with basic knowledge.
Features:
- Maintains factory routing
- 2" OD tubing to match factory hose size
- No modifications are necessary
- Dress up the engine bay
- Metal Replacement
- Limited Lifetime Warranty
Available Colors: Please message us with your powder coat color and exact year/make/model of your vehicle after purchase. Please note that your order will not be processed until we have this information
- Ink Black
- Illusion Blueberry
- Illusion Purple
- Illusion Cherry
- Flag Red
- Kingsport Grey
- M&M Orange
- Silk Satin Black
- Polar White
- Custom Color (+$50 charge)
Fitment:
- 2020-2024 GMC/Chevrolet 2500/3500 6.6L L5P Duramax (VIN Code Y)
Included:
- (1) Aluminum 2" L5P (20-24) Radiator Hose Tube
- (1) 2"x3" Straight Boot
- (4) 2" T-Bolt Clamp
- (1) 2"x95° Boot
Note:
- Engine code is dictated by the 8th character of the VIN number. The 10th character is the year of the truck
- This only fits the 2020-2024 L5P engines even though the Vin code is the same. This is due to small changes that were made in the engine bay. Please be sure you are ordering for the correct year truck