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The Most Powerful, Simple, and Reliable Exhaust Brake Available
The 6.2L and 6.5L diesel engines are known for durability and simplicity, but from the factory these trucks rely entirely on service brakes for downhill speed control. Sentinel adds dependable engine braking.
The Sentinel Exhaust Brake is a high-output, all-electric exhaust braking system engineered to convert up to 80% of engine output into retarding force, delivering industry-leading braking performance for towing and heavy-duty use. By eliminating air systems, vacuum components, and complex plumbing, Sentinel’s electric actuation provides fast, consistent braking with fewer failure points—dramatically reducing brake fade and extending service brake life. This durable, simplified design is backed by a true lifetime warranty.
Designed for ease of ownership, Sentinel requires no ECM or TCM programming, installs in about one hour with basic hand tools, and is guaranteed to fit your 1982–2000 Chevy / GMC 6.2L & 6.5L Diesel.
Choose Standard or Heavy Duty
Available Products
Sentinel Exhaust Brake for 1982–2000 Chevy & GMC 6.2L & 6.5L Diesel
Electric inline exhaust brake for 1982–2000 Chevy and GMC 6.2L and 6.5L diesel engines. Sentinel delivers strong exhaust braking performance to improve downhill safety, reduce brake fade, and protect service brakes when towing or hauling. Fully automated, easy to install, no air systems or programming required, and backed by a lifetime warranty.
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Electric inline exhaust brake — no air system required
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Designed specifically for 6.2L and 6.5L diesel platforms
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Convert up to 80% of engine output into retarding force
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Installs in under an hour with minimal tools
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Fully automated operation (manual option available)
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Backed by a lifetime warranty
Buy Now – Select Option
Choose the Right Sentinel Exhaust Brake for Your Truck
|
Feature |
Standard |
Heavy Duty |
|
Best For (6.2L / 6.5L) |
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 |
|
|
Not sure which to choose?
If your 6.2L or 6.5L diesel is used for heavy towing or commercial hauling, we recommend the Heavy Duty option. For stock engines used for occasional or recreational towing the Standard option delivers excellent exhaust braking performance.
🟩 Buy Standard
🟩 Buy Heavy Duty
Need help confirming fitment?
Contact Bundy Motors: 435-704-2272
Mon–Fri 6AM–6PM • Most Saturdays
Built for Classic Chevy & GMC Diesel Trucks
Compatible with common applications including:
C/K Series • Silverado • Sierra
(Model years 1982–2000, varies by configuration)
WHY ADD AN EXHAUST BRAKE TO A 6.2L / 6.5L DIESEL?
Older Diesels Need Modern Braking Control
The 6.2L and 6.5L diesel engines are respected for longevity, but factory braking systems were never designed for modern towing demands.
Sentinel helps:
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Maintain safer downhill speeds
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Reduce reliance on service brakes
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Minimize brake fade caused by overheating (brake fires)
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Improve control in mountainous or heavy-load conditions
Sentinel is a practical, durable safety upgrade for classic Chevy and GMC diesel owners.
SAFETY
Engine Braking Designed for Safer Descents
Long downhill grades and heavy trailers can quickly overwhelm service brakes—especially on older trucks.
The Sentinel Exhaust Brake enhances safety by:
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Helping manage speed on long descents
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Reducing brake overheating
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Supporting consistent braking under load
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Improving driver confidence while towing
By slowing the engine instead of relying solely on service brakes, Sentinel helps provide safer, more predictable control.
HOW SENTINEL WORKS
Simple Electric Exhaust Braking
Sentinel uses an electric inline valve to create controlled exhaust back pressure, slowing the engine during deceleration.
What makes Sentinel ideal for the 6.2L and 6.5L diesel platforms:
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No air compressors or air lines
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No engine tuning required
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Independent operation
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Automated braking control (manual option available)
This design keeps the system simple, reliable, and well-suited for mechanical diesel engines.
INSTALLATION
Straightforward Installation — Often Under an Hour
Sentinel is designed for easy installation using basic tools.
Typical installation includes:
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Inline exhaust brake mounting
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Wiring routing
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Controller connection
Because Sentinel operates automatically, it provides consistent braking support without requiring constant driver input.
DURABILITY + WARRANTY
Built for Real Diesel Use — Backed for Life
Sentinel Exhaust Brakes are engineered to handle:
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High exhaust temperatures
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Heavy towing loads
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Long downhill grades
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Years of real-world diesel use
Every Sentinel Exhaust Brake is backed by a lifetime warranty.
FITMENT
1982–2000 Chevy & GMC 6.2L & 6.5L Diesel
Fitment depends on:
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Exhaust pipe diameter at the install location
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Available clearance for inline mounting
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Existing exhaust routing or modifications
Bundy Motors can assist with fitment confirmation before or after purchase.
FAQ — 6.2L / 6.5L Diesel
Does this work on both 6.2L and 6.5L engines?
Yes. Sentinel is compatible with both 6.2L and 6.5L diesel engines.
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 6.2L or 6.5L Diesel for Safer Towing and Descents
Add dependable exhaust braking to your Chevy or GMC diesel 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
