Optimize the maintenance of your drum brakes with the Bendix® EnduraSure® T30/30 Chamber (NT3030STD-78DS). Equipped with a factory-cut 7.8 stem for quick installation, this standard-stroke (2.50) dual chamber incorporates a corrosion-resistant epoxy-coated power spring that extends service life up to three times compared to conventional units. Designed for heavy-duty Class 7 and 8 axles with S-Cam cams, it offers maximum reliability under SAE standards.
Basic Part Information5 attributes
| Product Line | Brakes |
|---|---|
| Category Name | Brake Chambers |
| Part Type | Spring Brake (S-Cam) |
| Alternate Part Name | S-Cam 30/30 Double Chamber Spring Brake Chamber, 30/30 Brake Chamber, Bendix 270° Double Clamp Band Spring Brake, Spring Brake (S-Cam) |
| OEM Part Number | NT3030STD-78DS |
Application/Fitment Attributes10 attributes
| Application Type | Semi-Trucks, Semi-Trailers, Heavy Duty Trucks, Buses, Trailers |
|---|---|
| Chamber Style | Double Diaphragm |
| Chamber Type | T30/30 |
| Mounting Stud Center-to-Center Spacing | 4.75 in. (120.7 mm) |
| Mounting Stud Length | 1.50 in. (38.1 mm) |
| Parking Port 12 | 3/8-18 NPTF |
| Port Angle | 270 Deg. |
| Push Rod Length | 7.80 in. |
| Service Chamber Joint Type | Double Clamp Band |
| Service Port 11 | 3/8-18 NPTF |
Technical/Performance Attributes3 attributes
| Maximum Operating Temperature | 175 °F (79 °C) |
|---|---|
| Minimum Operating Temperature | -40 °F (-40 °C) |
| Stroke Length | 2.50 in. (63.5 mm) |
Packaging / Logistics Attributes:1 attribute
| Net Weight | 24.69 lb. |
|---|
Intended Application
- Compatible with S-Cam cam drum brake systems on Meritor®, Dana Spicer®, Hendrickson® and Eaton® axles; compatible with Bendix® Versajust®, Haldex® and Gunite® automatic slack adjusters; directly replaces 7.8 stem T30/30 cams from brands such as MGM® (3430051), Haldex® (GC3030), Automann® (179SB3030S) and VMRS code 013-004-027.
- Always compare with your OEM part number prior to purchase to confirm full compatibility.
- Bendix: NT3030STD-78DS
