BD Diesel Universal Exhaust Brake 4in with Air Compressor

Not every truck has a bolt-on exhaust brake kit, especially once it's running an aftermarket turbo. BD's universal 4in exhaust brake mounts in-line in the exhaust and comes with its own air compressor, so it can go on trucks where a turbo-mount brake won't fit.

It's the same BD brake design that's been working on diesel trucks for years: a pneumatic valve that builds controlled backpressure so the engine helps hold the load on a downhill.

Why we like it

• BD Variable Orifice Technology regulates backpressure across the RPM range
• Up to 150 retarding horsepower (BD rating)
• Air compressor included
• Remote, in-line mount for trucks where a turbo-mount brake won't fit
• Spring-loaded pneumatic cylinder with pressure regulation
• Stainless mounting hardware
• Backed by BD's 24-month / 24,000-mile warranty

Fitment

Universal 4in exhaust - diesel pickups and work trucks with 4in exhaust tubing; confirm fit with the shop.

What's in the box

Per BD's packing list: Air Compressor, Valve Assembly, Air Tubing, Adapter, Toggle Switch Kit, Regulator And Control Assembly, Mounting Hardware.

Specs at a glance

• Part number 1028140, about 31 lb shipping weight
• BD install guide (PDF) linked in the product specs

Install notes

Universal kit: plan on fabrication-level work to mount the valve in the 4in exhaust and find a home for the compressor and controls. BD's install guide is linked in the specs.

Not sure it's the right piece for your truck? Send us your year, engine and what's already been changed, and we'll check it against BD's application list before it ships.

Questions on fitment? Call the shop at (806) 503-2161.

Ships direct from a US warehouse in 1-3 business days. Most parts drop-ship directly from the manufacturer or distributor warehouse; tracking is emailed as soon as it ships.

Free shipping on qualifying orders. Free local pickup in Ropesville, TX.

Questions? Call (806) 503-2161 (Mon-Fri 8am-5pm CT) or email blackdiamondultd@gmail.com.