EVRBUL Radiator Coolant Drain Hose for Volvo VNL & Mack Trucks — Brass Coupler, Transparent PVC (Replaces 9996049)

This tool streamlines cooling-system service for heavy-duty trucks fitted with Volvo D11, D13, D16 and Mack MP7, MP8, MP10 engines. It pairs a precision brass quick coupler and nickel-plated connection with a thick transparent PVC hose so you can see coolant flow, reduce spills, and connect to a vacuum pump for efficient refilling. The kit replaces part numbers 9996049 and 924-5002 and is built for repeated shop use, resisting corrosion and kinking under typical service conditions.

How does this drain hose prevent leaks while draining a radiator?

The EVRBUL tool uses brass quick couplings and a springlock drain valve engineered to seal the radiator drain fitting. A nickel-plated end improves corrosion resistance where the hose mates to the drain plug, and the coupling geometry holds firm under pressure to avoid seepage.

• Brass coupler and springlock drain valve for tight sealing
• Nickel-plated connection resists rust at stress points
• Threaded fittings that can be tightened to stop leaks

Can I use it with a vacuum pump to refill coolant?

Yes — the kit includes a male connector designed to attach to vacuum filling equipment so you can draw coolant into the system without trapped air. The same hose drains coolant when the vacuum connector is not used, making it a two-function service tool.

• Male connector attaches to most vacuum pumps for air-free fills
• Simple switch between drain and fill modes by connecting or leaving off the pump
• Transparent hose lets you watch fluid movement during vacuum fill

Which truck engines and model years are compatible?

This drain and refilling tool was designed for common heavy-truck cooling fittings and is compatible with Volvo VNL trucks from 2004–2019 that use D11, D13, and D16 engines, and Mack trucks from 2008–2019 with MP7, MP8, and MP10 engines. It replaces OEM part numbers 9996049 and 924-5002 for straightforward sourcing.

• Volvo VNL: 2004–2019 with D11, D13, D16 engines
• Mack Trucks: 2008–2019 with MP7, MP8, MP10 engines
• Cross-references OEM part numbers 9996049 and 924-5002

What materials and durability features should a technician expect?

The hose is constructed from thick transparent PVC with a 2mm wall for flexibility and abrasion resistance, while the couplers and valve are brass and nickel-plated where they mate to the drain plug. These choices balance corrosion resistance, repeated connection cycles, and the ability to visually inspect fluid during service.

• 2mm-wall PVC hose for kink resistance and visibility
• Brass quick couplings for long-term durability
• Nickel plating on the drain-facing end to reduce corrosion

Who is this for: Professional fleet technicians, independent diesel shops, and owner-operators who service Volvo VNL and Mack heavy trucks and want a dependable, reusable drain-and-fill tool. It’s particularly useful where vacuum filling is standard practice, and for anyone who needs to minimize spills and speed up cooling-system maintenance while using a product that matches OEM part numbers.