PATL-30/30 GBK Type 30/30 Spring Brake Chamber, Black Powder-Coated, 3″ Long Stroke with Threaded Push Rod and Clevis Kit, Sealed Bottom

Packaging: Sold per piece. 1 pallet = 50 pieces.

• Trusted Wholesale Veteran: For over a decade, GBK has been a premier bulk supplier to North American heavy-duty fleets. Our ISO 9001 certified factory ensures every GT-3030L unit meets or exceeds FMVSS 121 and SAE J1469 safety standards.
• 3.0" Extra Long Stroke Safety: Engineered for maximum safety, the 3-inch extra-long stroke provides a superior braking margin, preventing brake fade on heavy-duty drive axles and trailers under extreme loads.
• Sealed Bottom & Gold Finish: Features a precision-sealed bottom housing to block moisture and road salt. The high-visibility Gold anti-corrosion coating extends the service life of the internal high-tension power spring.
• Dual Function Spring Brake: This Type 30/30 (Double Diaphragm) unit handles both your Service Braking and Parking/Emergency Braking. Includes a heavy-duty caging bolt for safe maintenance.
• 13" Adjustable Push Rod: Comes with an extra-long 13-inch fully threaded push rod (5/8"-18 thread) and jam nut. The universal design allows you to cut the rod to your specific required length for a perfect fit.

The Gold Standard in Trailer & Drive Axle Safety

The GBK GT-3030L is not your average spring brake. Engineered for the harshest road environments, this Sealed Bottom Type 3030 unit is designed to keep out the road salt and grime that causes standard chambers to fail prematurely. With a high-visibility Gold Anti-Corrosion finish, it offers the ultimate protection for your fleet.

As a long-standing wholesale supplier, we understand that downtime is money. That’s why our GT-3030L features a 3.0” Extra Long Stroke to ensure consistent stopping power and reliable parking brake engagement. The 13-inch fully threaded push rod provides maximum flexibility—simply cut to size and install.

Technical Specifications