SKU: 88242562258

HSP BILLET THERMOSTAT HOUSING KIT (2001-2005 CHEVY / GMC)

Sale price$147.15 Regular price$163.50
Save 10%

Pay in installments of $40.88 with ShopPay, AfterPay and Klarna

Shipping Estimate
USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Aug 23 - Aug 28

Promo Codes Available:

For Your Every Summer RSVP, with Code: SUMMER15

Description

HSP BILLET THERMOSTAT HOUSING KIT (2001-2005 CHEVY / GMC)**Shipping Notice:** Due to high order volumes, most HSP products are expected to ship within 2 8 weeks from the date of purchase. For a more accurate lead time, please contact us directly. **HSP Billet Thermostat Housing Kit (040 HSP) for 2001 2005 Chevrolet and GMC Duramax** The HSP Billet Thermostat Housing Kit is a top notch piece of billet equipment designed for Duramax powered Chevrolet and GMC trucks. **Why Choose the HSP Billet Thermostat

**Shipping Notice:**

Due to high order volumes, most HSP products are expected to ship within 2-8 weeks from the date of purchase. For a more accurate lead time, please contact us directly.

---

**HSP Billet Thermostat Housing Kit (040-HSP) for 2001-2005 Chevrolet and GMC Duramax**

The HSP Billet Thermostat Housing Kit is a top-notch piece of billet equipment designed for Duramax-powered Chevrolet and GMC trucks.

**Why Choose the HSP Billet Thermostat Housing Kit?**

The factory setup in Duramax engines can be quite cramped, especially when switching to a different valley-based turbo without cooling provisions. The HSP Billet Thermostat Housing Kit addresses this issue by providing more space for aftermarket turbo systems and fuel components.

**Key Features:**

- **Billet Thermostat Housing and Tube:** Eliminates the factory coolant hose that crosses over the driver's side valve cover, creating more room for twin-turbo systems and dual CP3 kits.
- **Enhanced Accessibility:** Easier access to fuel system components on the driver's side valve cover.
- **Improved Engine Bay Appearance:** Powder-coated hard tube for a sleek look.
- **Multiple Color Options:** Available in various colors and custom options.

**Kit Contents:**

- (1) Thermostat Housing O-Ring
- (3) M6 x 1.0 x 35mm Flange Bolts
- (6) M6 Fender Washers
- (3) M6 Nylon Lock Nuts
- (4) M8 x 1.25-25mm Socket Cap Bolts
- (4) M6 x 1.0-18mm Socket Cap Bolts
- (1) 1.75 Inch x 3 Inch Straight Boot (437-RFAB)
- (1) 1.75 Inch x 90 Degree Boot (433-RFAB)
- (4) 1 3/4 Inch Worm Gear Clamps (408-RFAB)

**Special Note:**

HSP Diesel is currently making a running change in boot style, which means you may receive boots without logos. This change ensures we can continue providing high-quality parts.

**Compatibility:**

- **LB7:** 01-04 (VIN Code 1)
- **LLY:** 04.5-05 (VIN Code 2)

To identify the VIN code, check the 8th character of the VIN number. The 10th character indicates the year of the truck.

**Overview:**

- CNC Machined Billet Aluminum Thermostat Upper Housing
- Allows for added room for aftermarket turbochargers
- Easier access to fuel system components on the driver's side valve cover
- Powder-coated hard tube to improve the look of the engine bay
- Allows room for dual CP3 pump kits
- Multiple color options and custom options available
- Makes room for unique and high-powered turbo setups

**Our Warranty:** HSP No BS Limited Lifetime Warranty 

 

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: 88242562258

Discover Niche Categories That Outsell

Top-Converting Item to Boost Your Average Order

4.1 ★★★★★
Based on 20 reviews
Sort
Highest Rating
Newest First
Oldest First
Product Reviews
A
Verified Purchase
Ally Cat
Whiting, US
★★★★★ 5
Best Boxer Briefs for Women!
Color: 09-multicolour (4-pack), Size: Large
I rarely give 5⭐️’s but these deserve it! Hands down, the most comfortable material, stitching, waistband, moisture wicking and overall comfort. They sit right beneath my bellybutton, they wash and dry well and they’re sturdy. I have tried 3 styles and these are the best.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 7, 2026
L
Verified Purchase
Lisa Hitchcock
San Leandro, US
★★★★★ 5
The best boy shorts ever.
Size: XX-Large, Color: Dark Colors
Consumers should know that these underwear are the most comfortable underwear on the market. Nice material, cut well and sewn perfectly. Did I mention, super soft? My favorites.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 21, 2025
P
Verified Purchase
Phoenix Marie
Draper, US
★★★★★ 5
Best boxer briefs for women hands down
Size: X-Large, Color: Dark Colors
I really adore these! The material is soft but good quality and not thin. They’re perfectly cut to flatter any body, and the stretchy waistband is thick but not to the point where it digs in your skin. I normally wear a size L and I sized up to an XL and I’m so happy with the fit. The brief style is so adorable and I give these a 10/10 for being the most comfortable underwear I own
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 6, 2025
J
Verified Purchase
Janell
Lexington, US
★★★★★ 4
Comfortable
Size: XX-Large, Color: Dark Colors
They are stretchy and comfortable the colors are nice. Wish they had more variety.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 16, 2026
C
Verified Purchase
CPW
Alexandria, US
★★★★★ 5
Waited to review...
Size: Small, Color: Dark Colors
SO so hard to buy underwear online. I liked Hanes cotton boxer briefs. but they changed the fabric a few years ago. While I preferred the cotton feel of the old ones, I eventually had to move along and try something else. These wash very nicely--and I dry mine in the dryer with no shrinkage. They don't ride up which is awesome. I have had mine for months so I can fully recommend them now.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on August 19, 2025

recommand products