Need help? We're here!
(888) 312-8812 Login SignupThe Bendix Air Brake Spring Brake is constructed as a T30/30 double-diaphragm unit built to deliver a strong mechanical parking force while providing controlled service braking through the air chamber. Its 3/8-18 NPTF ports integrate neatly with standard air-system plumbing, offering great airflow routing during daily braking cycles. Vehicles that experience frequent coupling, uncoupling, or dock maneuvers benefit from the assured performance that dual-diaphragm mechanisms bring to parking control. The chamber’s overall structure helps maintain consistent response across various pressure inputs, which is essential for repeatable braking behavior in stop-and-go fleet environments. Get the Bendix K193948 now.
| Chamber Style | Double Diaphragm |
| Chamber Type / Size | T30/30 |
| Service Chamber Joint Type | Crimped |
| Stud Thread Size | 5/8-11 UNC-2A |
| Mounting Stud Length | 1.46 IN |
| Stud Spacing | 4.75 IN |
| Stroke | 3.00 IN |
| Push Rod Length [IN] | 2.25 in |
| Clevis / Yoke Style | Welded |
| Clevis / Yoke Arm Bushing Pin Diameter | .50 IN |
| Clevis / Yoke Arm Link Pin Diameter | .25 IN |
| Clevis / Yoke Pin Spacing | 1.30 IN |
| Service Port | 3/8-18 NPTF |
| Parking Port | 3/8-18 NPTF |
| Port Angle | 315° |
| Maximum Operating Temperature | 175 °F |
| Minimum Operating Temperature | -40 °F |
Be the first to review this product!
A part of the Knorr-Bremse Group, Bendix® provides the automotive and truck parts industry with cutting-edge energy management solutions, active safety technologies, and air brake charging for tractors, buses, commercial vehicles, trailers, as well as medium- and heavy-duty trucks throughout North America. Headquartered in Elyria, Ohio, Bendix Commercial Vehicle Systems employs over 3,200 people who work hand in hand for the accomplishment of the brand's vision: "to become the leading worldwide supplier of active vehicle safety systems within the commercial vehicle industry." This brand takes pride in being the first to introduce many notable parts and technologies to the North American commercial vehicle market. Among these many firsts are the groundbreaking air brake system technologies such as air dryers, air compressors, and ABS. At Bendix, exceeding industry standards is a strict requirement.
Be the first to ask a question about this product!
Optional. Please do not use your full name.
Minimum 10 characters, maximum 500 characters
You can upload up to 3 images to help illustrate your question. Supported formats: JPG, PNG, GIF, WebP
Please complete the reCAPTCHA verification to submit your question.
California residents see


