Billet Technology 30030 Thermostat Housings for Dodge Durango - product photo
Click to zoom in

Billet Technology Water Neck SRT 6.4L

30030
Thermostat Housings
4-12 Weeks
$ 49.99
$ 49.99

Billet Technology 30030 Billet Aluminum Water Neck for 6.4L 392 HEMI

Upgrade your factory thermostat outlet housing with the Billet Technology 30030 Billet Aluminum Water Neck. Designed for select Dodge Durango SRT, Dodge Durango SRT 392, Jeep Grand Cherokee SRT, and Jeep Grand Cherokee SRT8 models with the 6.4L 392 HEMI engine, this billet replacement helps eliminate common coolant leaks caused by warped or cracked OEM housings.

CNC machined in Lake Worth, Florida from solid 6061-T6 certified domestic aircraft-grade aluminum, this water neck provides a stronger, longer-lasting replacement for the factory plastic or OEM housing while adding a clean machined aluminum look to your engine bay.

Vehicle Fitment

Year Range Make Model Trim Engine
2018-2023 Dodge Durango SRT / SRT 392 6.4L 392 HEMI
2012-2013 Jeep Grand Cherokee SRT8 6.4L 392 HEMI
2014-2021 Jeep Grand Cherokee SRT 6.4L 392 HEMI

Specifications

Part Number 30030
Brand Billet Technology
Material Solid 6061-T6 Aircraft-Grade Aluminum
Finish Satin Raw Machined Aluminum
Product Type Water Neck / Thermostat Outlet Housing
Engine Compatibility 6.4L 392 HEMI
Country of Origin USA
Warranty Limited lifetime warranty against defects in materials and workmanship

What Is Included

  • 1x Billet Technology 30030 Billet Aluminum Water Neck
  • Installation hardware
  • Gasket set, when included by manufacturer or selected kit version

Frequently Asked Questions

Does this water neck require a new thermostat?

No. The Billet Technology 30030 accepts the OEM thermostat. You may reuse your existing thermostat if it is in good condition or install a new OEM-spec thermostat during installation.

Does this billet water neck use OEM gaskets?

Yes. This product is machined to accept OEM or OEM-equivalent gaskets. A fresh gasket is recommended during installation.

Will this water neck improve cooling performance?

This is a direct replacement housing with OEM-style coolant passage geometry. It does not change thermostat opening temperature, but it helps maintain proper sealing by replacing the factory housing that can warp or crack over time.

Is this compatible with OEM and aftermarket coolants?

Yes. 6061-T6 aluminum is compatible with standard ethylene glycol and OAT-based coolants. Do not mix coolant types. Flush the system if switching coolant formulas.

Is this water neck made in the USA?

Yes. The Billet Technology 30030 is CNC machined in Lake Worth, Florida from certified domestic 6061-T6 aluminum.

Do I need to bleed the cooling system after installation?

Yes. Any time the cooling system is opened, air pockets can form. Fill and bleed the cooling system according to the factory service procedure.

Installation Notes

  1. Allow the engine to cool completely before servicing the cooling system.
  2. Drain coolant as needed using a drain pan.
  3. Disconnect coolant hoses from the factory housing.
  4. Remove the OEM fasteners and factory water neck.
  5. Clean the mating surface thoroughly.
  6. Install the thermostat and fresh gasket into the billet housing.
  7. Mount the Billet Technology 30030 water neck and torque fasteners to OEM specification.
  8. Reconnect coolant hoses and secure all clamps.
  9. Refill and bleed the cooling system.
  10. Start the engine, bring it to operating temperature, and inspect for leaks.
  11. Top off coolant after the thermostat opens and recheck after the first heat cycle.

WARNING: This product can expose you to chemicals including lead and phthalates, which are known to the State of California to cause cancer and reproductive harm. For more information, visit www.P65Warnings.ca.gov.

Billet Technology

Billet Technology

Shop Billet Technology catch cans, engine dress-up parts, and cooling components at Black Ops Auto Works. Coordinate your engine bay with application-specific caps, covers, housings, and accessories for selected Dodge, Chrysler, Jeep, and Ram vehicles. The collection also includes a selected Ford Bronco engine cap-cover package. Billet Technology Oil Catch Cans Explore Signature Series catch cans for supported HEMI, Pentastar, Hellcat, Trackhawk, TRX, and other listed applications. These functional components separate oil from crankcase ventilation gases, while application-specific brackets and hose arrangements determine how the kit installs. Compare the exact engine and vehicle configuration before choosing a kit. A Charger Hellcat installation may use different mounting or plumbing from a Challenger, Durango Hellcat, or Trackhawk. Browse our oil catch can collection for related options. Engine Bay Caps and Covers Create a coordinated underhood appearance with selected oil cap cov...

View Billet Technology Products
Cooling

Cooling

Cooling system parts and accessories for HEMI, Hellcat, Trackhawk, Duramax, Cummins, and import performance builds are stocked at Black Ops Auto Works. Shop radiators, thermostats, thermostat housings, water pumps, coolant reservoirs, expansion tanks, radiator hoses, oil coolers, transmission coolers, fans and shrouds, and thermal wrap for street, track, towing, and diesel platforms. Every product is filterable by year, make, model, trim, engine, and drivetrain so the correct part ships the first time. Black Ops Auto Works carries 2116 Cooling SKUs across radiator, thermostat, water pump, hose, and heat management categories. What This Category Covers The Cooling category groups together every part that keeps engine, transmission, and charge air temperatures in check under real driving load. Coverage spans aluminum performance radiators, billet thermostat housings, high flow water pumps, silicone radiator hose kits, coolant reservoirs and expansion tanks, oil and transmission co...

View Cooling Products
Dodge Durango Parts & Accessories

Dodge Durango Parts & Accessories

Choose Dodge Durango parts for chassis adjustments, exhaust sound and cabin protection. Keep the exact year, engine, suspension and trim equipment together when planning the SUV’s upgrades. Control Arms and Sway-Bar Links Black Ops adjustable front upper control arms listed for 2011–2016 Durango applications and billet sway-bar links listed for 2017-and-newer applications have separate coverage. Use the individual component’s stated year and equipment requirements. Review alignment range, attachment and installation requirements with the shop performing the work. An adjustable arm and a sway-bar link serve different functions and should not be treated as interchangeable fixes for a chassis issue. Exhaust Sound and Everyday Protection AWE Touring and Track choices differ in sound treatment. For a Track-to-Touring conversion, identify the compatible starting system, engine and supplied sections; the conversion is not a complete exhaust. Floor liners should match the row, retention and...

View Dodge Durango Parts & Accessories Products
Engine

Engine

Shop automotive engine parts, cooling-system components, oil-system upgrades, ignition parts, pulleys, sensors, gaskets, fuel components, and engine-bay accessories at Black Ops Auto Works. This collection covers vehicle-specific replacement parts, performance upgrades, supporting hardware, and universal components for street cars, trucks, SUVs, Jeeps, diesel vehicles, off-road builds, and motorsport applications. Engine Parts and Performance Components The Engine collection brings together components used throughout the engine, lubrication system, cooling system, ignition system, fuel system, crankcase ventilation, accessory drive, and engine compartment. Available products range from replacement sensors and gaskets to rotating-assembly parts, performance cooling systems, supercharger pulleys, catch cans, cylinder heads, camshafts, intake manifolds, and engine-bay dress-up components. Engine compatibility cannot be determined from vehicle model alone. Confirm the exact year, make, ...

View Engine Products
Jeep Grand Cherokee Parts and Accessories

Jeep Grand Cherokee Parts and Accessories

Shop Jeep Grand Cherokee composite body panels and adjustable suspension components by exact generation and trim. Compare each hood, spoiler, link or arm using its own production coverage. WK2 Hoods and Composite Choices The listed 2011–2021 Sniper hood offers fiberglass and carbon-fiber configurations. Preserve its EcoDiesel exclusion and review transferred factory pieces, vent requirements and finish preparation before choosing a version. Match Demon, CFR and other panels by their exact product application rather than extending Sniper coverage to every design. Spoilers and replacement hatches have separate mounting and production requirements. Alignment Arms and Links The listed front upper arms target 2017–2021 SRT/Trackhawk applications and use adjustment tabs for camber and caster. Confirm actual trim, ride height and measured alignment needs. Compare front arms, rear arms, toe links and sway-bar links by position and adjustment function. Review pair or individual quantities an...

View Jeep Grand Cherokee Parts and Accessories Products
Thermostat Housings

Thermostat Housings

Welcome to our exclusive Thermostat Housings collection! Here, you'll find a wide range of products designed to keep your thermostat protected and functioning optimally. Why Choose Our Thermostat Housings? Durability: Crafted from high-quality materials to withstand various environmental conditions. Compatibility: Designed to fit most standard thermostat models. Easy Installation: User-friendly designs that allow for quick and hassle-free setup. Stylish Options: Available in various styles and colors to complement your home decor.   Shop Our Top Picks Browse through our top-rated thermostat housings: Premium Thermostat Housing  Eco-Friendly Thermostat Housing  Smart Thermostat Housing  Designer Thermostat Housing    Get Started Today! Upgrade your heating and cooling system with our Thermostat Housings. Shop now and experience quality and efficiency like never before!

View Thermostat Housings Products
Military & First Responder Discounts

Military & First Responder Discount Program

Black Ops Auto Works proudly honors active duty military, veterans, National Guard, reserves, police officers, firefighters, and EMTs with an exclusive 5% discount on all performance parts and carbon fiber upgrades. Verify instantly and start saving today.

Learn More & Apply

Your cart

×