D4-3376T20 or D43376T20 is a genuine Meritor air brake chamber assembly, a Type 20/24 spring brake with a 2.50 in. stroke, sold by Pro Gear and Transmission. A spring brake chamber uses compressed air to push the service brakes on, and it holds a heavy spring that applies the parking brake on its own when the air is released. Air pressure keeps that spring compressed while the truck is driven. Replace brake chambers in pairs rather than one at a time so the brakes stay balanced from side to side.
Features
Spring brake air chamber assembly
Type 20/24 model
2.50 in. stroke
Spring holds the parking brake on when air is released
Replace in pairs to keep brake balance
Sold as 1 each
Tech Specs
- Chamber type: Spring brake
- Model: Type 20/24
- Stroke: 2.50 in.
- Unit pack: 1
