Description
Product Features
- Electric inline exhaust brake — no air system required
- Up to 80% engine braking capability
- Fully automated operation with throttle input
- Reliable braking with or without OEM turbo
- No ECM or TCM programming required
- High-torque gear-reduced electric motor
- Simple installation using basic tools
- Built for heavy towing and long downhill grades
- Backed by a lifetime warranty
WHY ADD AN EXHAUST BRAKE TO AN L5P DURAMAX?
The L5P Duramax is a powerful towing platform, but controlling speed on long downhill grades places extreme stress on service brakes—especially when hauling heavy trailers or equipment.
The Sentinel Exhaust Brake helps:
- Maintain safer downhill speeds
- Reduce reliance on wheel brakes
- Minimize brake fade caused by overheating
- Improve overall control and driver confidence
By slowing the engine instead of relying solely on service brakes, Sentinel provides safer, more predictable braking control when it matters most.
HOW SENTINEL WORKS
Sentinel uses an electric inline exhaust valve to create controlled exhaust back pressure during deceleration, slowing the engine and reducing load on the braking system.
Unlike turbo-dependent braking methods, Sentinel operates as a dedicated external exhaust brake, delivering consistent braking performance regardless of turbo configuration.
INSTALLATION
Sentinel Exhaust Brakes are designed for straightforward installation using basic tools.
Typical installation includes:
- Installing the exhaust brake inline
- Routing wiring
- Connecting the controller
Many installations are completed in under one hour.
FITMENT
✔ 2017–2027
Chevy Silverado HD & GMC Sierra HD
✔
6.6L Duramax (L5P)
Fitment
depends on exhaust pipe diameter, available clearance, and exhaust routing.
If you have questions about fitment, Bundy Motors can help confirm
compatibility before ordering.
📞 435-704-2272
FREQUENTLY ASKED QUESTIONS
Does
this work with aftermarket turbos?
Yes. Sentinel provides reliable exhaust braking with or without the OEM
turbo.
Is
the exhaust brake automatic?
Yes. Sentinel operates fully automatically with throttle input.
Do
I need tuning or programming?
No. Sentinel requires no ECM or TCM programming.
Is
this suitable for heavy towing and hauling?
Absolutely. Sentinel is designed specifically for heavy towing, hauling, and
long downhill grades.
DURABILITY & WARRANTY
Sentinel Exhaust Brakes are engineered to handle:
- High exhaust temperatures
- Repeated braking cycles
- Heavy towing and hauling loads
- Real-world diesel use
Every Sentinel Exhaust Brake is backed by a lifetime warranty.
🟩 Buy Sentinel Exhaust Brake
Upgrade your L5P Duramax with dependable, fully automated exhaust braking and protect your service brakes on every downhill grade.
📞
Questions before ordering?
Contact Bundy Motors for expert support: 435-704-2272
Mon–Fri 6AM–6PM • Most Saturdays
