Emission Diverter Valve B&B Molders Stainless Steel Dual Port

Description

Product Overview

The B&B Molders emission diverter valve is engineered as a precise, direct replacement for the original equipment part, ensuring a seamless fit in any vehicle that specifies a 1.5 inch flange inlet and outlet. Its primary function is to divert exhaust gases away from the coolant system, a critical task that becomes especially important when temperatures drop and the risk of condensation and freeze‑up increases. By maintaining a clear path for gases, the valve helps preserve engine efficiency and reduces the likelihood of costly overheating incidents.

Crafted from high‑grade stainless steel, the valve offers exceptional resistance to corrosion, rust, and the harsh chemical environment inside the exhaust manifold. Stainless steel not only extends the service life of the component but also provides a sleek, professional appearance that matches the aesthetic standards of modern automotive engineering. The material choice reflects a commitment to durability, ensuring that the valve can withstand the repeated thermal cycles of daily driving without compromising its structural integrity.

The unit measures 8 x 7 x 2.25 inches and weighs just 5.1 ounces, making it compact enough to fit into tight engine bays while still delivering robust performance. It includes two ports—both 1.5 inches in diameter—configured with flange connections for straightforward installation. The inlet and outlet flange types are identical, simplifying the replacement process and reducing the chance of installation errors. The dual‑port design supports both normal operation and a dedicated winterizing mode, allowing the valve to be positioned to block coolant flow when the vehicle is stored for extended periods in cold climates.

Winterizing functionality is a standout feature of this valve. When the winterizing position is engaged, the valve effectively seals off the emission pathway, preventing coolant from circulating through the exhaust system and freezing. This protective measure eliminates the need for additional aftermarket devices, offering a built‑in solution that saves both time and money. The valve’s design also incorporates a zero‑leak guarantee, verified through rigorous factory testing to ensure that no coolant or exhaust gases escape under normal operating pressures.

Installation is straightforward for technicians familiar with standard emission system components. The flange connections align with existing mounting points, and the compact size allows for easy access even in confined engine compartments. Because the valve is an exact OEM match, no modifications to the surrounding hardware are required, and the part integrates seamlessly with the vehicle’s existing emission control architecture. Detailed installation instructions are provided by B&B Molders, and the product is supported by a comprehensive warranty that underscores the manufacturer’s confidence in its quality.

Usage

The emission diverter valve is ideal for a wide range of passenger cars, light trucks, and SUVs that rely on a coolant‑cooled exhaust system. It is particularly beneficial for vehicles operating in regions with harsh winter conditions, where the risk of coolant freezing can lead to engine damage. By installing the valve, owners can winterize their vehicles without the need for additional external devices, ensuring that the engine remains protected during storage periods.

During normal driving, the valve remains in its standard position, allowing exhaust gases to flow freely while maintaining optimal coolant circulation. When the vehicle is prepared for long‑term storage, the user simply rotates the valve to the winterizing position, which seals the pathway and prevents coolant from entering the exhaust manifold. This simple action reduces the chance of freeze‑induced cracks and extends the lifespan of both the valve and the surrounding engine components.

Routine maintenance checks should include a visual inspection of the valve’s flange connections for signs of corrosion or wear. Because the valve is constructed from stainless steel, it typically requires less frequent replacement than lower‑grade materials. However, regular verification of the winterizing function—especially before the onset of cold weather—ensures that the valve will perform as intended when needed.

Why Choose Us

B&B Molders has a long history of delivering high‑quality automotive components that meet stringent industry standards. Each emission diverter valve undergoes a multi‑stage quality assurance process, including dimensional verification, material composition analysis, and pressure testing to confirm zero leakage. This rigorous testing regime guarantees that every unit leaving the factory performs reliably under real‑world conditions.

Customers benefit from the brand’s commitment to after‑sales support. Should any installation questions arise, a dedicated technical support team is available to provide guidance, troubleshooting tips, and detailed documentation. The company also offers a clear warranty policy that covers defects in material or workmanship, reinforcing confidence in the product’s durability and performance.

Environmental compliance is another cornerstone of B&B Molders’ philosophy. The valve is designed to meet or exceed emissions regulations in major markets, helping vehicle owners maintain compliance with local environmental standards. By ensuring proper exhaust gas diversion, the valve contributes to reduced emissions and supports broader efforts to protect air quality.

Key Features

• Stainless steel construction provides superior corrosion resistance and long‑term durability.
• Dual 1.5 inch flange ports enable easy installation and reliable connection to existing exhaust systems.
• Built‑in winterizing position prevents coolant freeze‑up, protecting the engine during cold storage.
• Factory tested for zero leakage ensures consistent performance and peace of mind.
• Comprehensive customer support and warranty coverage for added confidence.

FAQ

What vehicles are compatible with this emission diverter valve?

The valve fits any vehicle that uses a 1.5 inch flange inlet and outlet for its emission system. It is commonly used in passenger cars, light trucks, and SUVs from a variety of manufacturers. Compatibility can be confirmed by checking the vehicle’s service manual for the specified flange size.

How do I switch the valve to winterizing mode?

To engage winterizing mode, rotate the valve lever to the designated winter position as illustrated in the installation guide. This action seals the exhaust pathway, preventing coolant from entering the manifold. Remember to return the valve to the normal position before resuming regular driving.

Is the valve covered by a warranty?

Yes, B&B Molders provides a warranty that covers defects in material or workmanship. The warranty period and specific terms are detailed in the product documentation and can be verified with the retailer at the time of purchase.

Can I install the valve myself, or do I need a professional?

While the valve is designed for straightforward installation with standard flange connections, we recommend that a qualified technician perform the replacement to ensure proper sealing and alignment. The included instructions are clear, but professional installation helps avoid potential issues.