The Dometic Machined Head Tank Kit (42 HTS) is a precision-engineered freshwater tank component designed for Dometic water systems in RVs. This machined head assembly is essential for maintaining proper tank integrity, water flow, and system reliability. If your RV's water tank is leaking, has a damaged filler neck, or shows signs of wear at the tank opening, this OEM replacement kit restores full functionality.
Key Features
- Machined aluminum construction for durability and corrosion resistance
- Direct OEM replacement for Dometic 42 HTS tank systems
- Includes all necessary hardware and gaskets for complete installation
- Precision-engineered to factory specifications
- Compatible with standard RV freshwater plumbing connections
- Prevents leaks and maintains water system integrity
Technical Specifications
| Specification | Detail |
|---|---|
| Part Number | 385400042 |
| Tank Model | Dometic 42 HTS |
| Material | Machined Aluminum |
| Type | Head Tank Kit (Filler Assembly) |
Frequently Asked Questions
Q: How do I know if my tank head needs replacement?
A: Signs include water leaking around the filler neck, cracks in the plastic or metal head assembly, difficulty securing the filler cap, or visible corrosion around the tank opening. If your Dometic 42 HTS tank is losing water or won't hold pressure, the head kit is likely the culprit.
Q: Is this a complete kit or do I need additional parts?
A: This is a complete head tank kit that includes the machined head assembly and all necessary gaskets and hardware for installation. You should not need additional components, though you may want to have a new filler cap on hand if yours is damaged.
Q: What tools do I need to install this kit?
A: Basic hand tools (wrenches, screwdrivers) are typically sufficient. You may need a tank wrench or strap wrench to secure the assembly. We recommend consulting your Dometic documentation or contacting our support team for model-specific installation guidance.
Why Choose Elkhart RV Parts
We specialize in hard-to-find Dometic replacement parts that keep your RV systems running smoothly. Shipping directly from Elkhart, Indiana—the RV capital of the world—we stock genuine OEM Dometic components backed by expert customer support. When you need the exact part to fix your water system, trust Elkhart RV Parts for quality and reliability.
| Brand | Dometic |
|---|---|
| Product_type | Machined Head Tank Kit |
| Model | 42 HTS |
| Part_number | 385400042 |
| System_compatibility | 42 HTS sanitation systems |
| Weight_lbs | 43.05 |
| Country_of_origin | USA |
| Product_condition | New |
| Oem_status | Genuine OEM |
| Kit_type | Complete replacement kit |
| Application | RV toilet system |
| Specifications_level | Factory specifications |
Factory-Fresh OEM Parts — the same brands installed in new RVs straight from Elkhart. Genuine, name-brand components made to order — never generic, never outdated. Sourced directly from the original RV manufacturers for perfect fit and factory-level quality.