Why 5.9L Cummins (24-Valve) Owners Choose Sentinel

The 24-valve Cummins delivers excellent power and torque, but from the factory these trucks rely entirely on service brakes for downhill speed control. When towing or hauling heavy loads, this can quickly lead to overheated brakes and reduced control.

Sentinel helps 24-valve Cummins owners:

• Maintain safer downhill speeds
• Reduce reliance on wheel brakes
• Minimize brake fade caused by overheating
• Improve control when towing or hauling
• Drive long grades with greater confidence

Sentinel is a practical safety upgrade for owners who tow frequently, haul heavy loads, or operate in mountainous terrain.

Sentinel Exhaust Brake Features — 5.9L Cummins (24-Valve)

• Up to 80% Engine Braking Capability
  Converts engine power into strong braking force for safer downhill control.
• Fully Automated Operation
  Engages and disengages seamlessly with throttle input.
• Electric Inline Exhaust Brake Design
  No air compressors, tanks, or air lines required.
• No ECM or TCM Programming Required
  Installs without tuning or software changes.
• Durable Gear-Reduced Electric Motor
  Built to handle repeated braking cycles and heavy towing use.
• Designed for the 5.9L Cummins Platform
  Engineered specifically for Dodge Cummins trucks.
• Simple Installation
  Often completed in under one hour using basic tools.
• Lifetime Warranty
  Built for real diesel work and backed for life.

Built for Dodge Cummins Diesel Trucks

Compatible with common applications including:

RAM 2500 • RAM 3500
(Model years 1998–2007, varies by configuration)

📞 Need help confirming fitment?
Call Bundy Motors: 435-704-2272

Choose the Right Sentinel Exhaust Brake for Your 5.9L Cummins (24-Valve)

Bundy Motors offers Standard and Heavy Duty Sentinel Exhaust Brake options for the 1998–2007 5.9L 24-valve Cummins, based on how your truck is equipped and how it’s used.

Sentinel Exhaust Brake — Standard Duty

Best for stock or lightly modified 5.9L Cummins trucks used for heavy occasional towing.

Standard Duty Highlights:

• Up to 80% engine braking capability
• Fully automated operation with throttle input
• Electric inline design — no air system required
• No ECM or TCM programming required
• Durable gear-reduced electric motor
• Simple installation — often under one hour
• Backed by a lifetime warranty

🟩 Buy Standard Duty

Sentinel Exhaust Brake — Heavy Duty

Designed for 5.9L Cummins trucks with performance turbochargers, upgraded fueling, or heavy frequent towing and commercial hauling.

The Heavy Duty Sentinel is engineered with larger internal components and a high-torque worm-drive motor to handle increased exhaust flow and sustained braking demands.

Heavy Duty Highlights:

• Maximum exhaust braking for demanding use
• Built for higher exhaust flow and heavy loads
• Heavy-duty internal components
• High-torque worm-drive electric motor
• Fully automated operation
• No air system or engine programming required
• Backed by a lifetime warranty

🟩 Buy Heavy Duty

What Sentinel Exhaust Brake System is Right for You? 

Feature	Standard	Heavy Duty
Best For (5.9 Cummins)	Stock & lightly modified engines	Performance turbos & fuel systems
Braking Power	Maximum exhaust braking	Maximum exhaust braking
Recommended Use	Standard heavy towing	Frequent heavy towing, commercial use
Throttle Automation	Fully automated (manual option)	Fully automated (Manual option)
Installation	1–3 hours	1–3 hours
Air System Required	No	No
Warranty	Lifetime	Lifetime
Price	$1398.00	$1650.00

SAFETY

Engine Braking Designed for Safer Descents

Long downhill grades and heavy trailers place extreme demands on braking systems.

The Sentinel Exhaust Brake enhances safety by:

• Helping manage speed on long descents
• Reducing brake fade from overheating
• Supporting consistent braking under load
• Improving driver confidence while towing

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 service brakes.

What makes Sentinel ideal for the 24-valve Cummins:

• No air systems
• No engine tuning required
• Independent operation
• Fully automated braking control (manual option available)

INSTALLATION

Sentinel is designed for straightforward installation using basic tools.

Typical installation includes:

• Inline exhaust brake mounting
• Wiring routing
• Controller connection

Many installations are completed in 1–3 hours.

DURABILITY & WARRANTY

Sentinel Exhaust Brakes are engineered to handle:

• High exhaust temperatures
• Heavy towing loads
• Long downhill grades
• Years of real-world diesel use

Every Sentinel Exhaust Brake is backed by a lifetime warranty.

FITMENT

✔ 1998–2007 Dodge 5.9L Cummins (24-Valve)

Fitment depends on:

• Exhaust pipe diameter
• Available clearance
• Exhaust routing or modifications

Bundy Motors can assist with fitment confirmation before or after purchase.

FAQ — 5.9L Cummins (24-Valve)

Do I need an air system or compressor?
No. Sentinel is fully electric.

Is installation difficult?
No. Most installations are completed in 1–3 hours with basic tools.

Is this suitable for towing and heavy loads?
Absolutely. Sentinel is designed specifically for heavy diesel use.

Upgrade Your 5.9L Cummins for Safer Towing & Descents

Add dependable exhaust braking to your Dodge Cummins and protect your service brakes on every downhill grade.

🟩 Buy Now

📞 Questions before ordering?
Contact Bundy Motors: 435-704-2272
Mon–Fri 6AM–6PM • Most Saturdays