Description
SB3030S30IT - 30/30 LONG STROKE INTRX SPRING BRAKE
PART NUMBER(S):
Fleet Products: SB3030S30IT
OE: 3030S30IT, LS303030IT
Automann: 179.SB3030SLX
DESCRIPTION:
Model: 30/30 Long Stroke Spring Brake – INTRX Series
Vehicles: Compatible with commercial trucks and trailers using Hendrickson INTRAAX/INTRAX suspensions
• Chamber Size: 30/30 (service/emergency diaphragm chambers)
• Stroke: 3.00" (long stroke for improved brake fade tolerance)
• Push Rod Length: 12.75"
• Push Rod Diameter: 5/8"-18UNF (fully threaded)
• Chamber Height: 10.55"
• Ports: 3/8"-18 NPTF (square port bosses, dual ports)
• Mounting Studs: 5/8"-11 UNC, 1.65" height
• Stud Spacing: 4.75" (center-to-center)
• Seal Diameter: 8.4"
• Mounting Style: Clamp band
• Material: Epoxy-coated corrosion-resistant steel; polymer push-rod guides
• System Design: Double diaphragm, tamper-resistant sealed chamber
• Weight: 20.1 lbs (combination), 11.5 lbs (service section only)
• Technologies:
– Patented center-hole diaphragm (CHD)
– Stroke Alert system
– External release bolt
– Long-life power spring
– Cold-weather-ready rubber diaphragm
– Composite guide for rod alignment
– Molded nitrile rubber air seals
Applications:
Engineered for Hendrickson INTRAXX/INTRAAX trailer suspension systems and S-cam drum brake axles requiring long stroke spring brakes. Designed for severe service use where corrosion resistance, extended stroke, and high durability are essential. Used extensively on trailers and heavy-duty trucks across North American fleets.
CROSS-REFERENCE(S):
3030S30IT, SB3030S30IT, LS303030IT, 3230051, 3230008, 3230051X, 3230008X, 460-3230008, 5554-3230008, ZAJ3230008, OTR3030PBK-LS, 85106551, 62A30PBLS, 780-62A30PBLS, 5007132, A3030S, BC3030, 3400123, M-3030COM, M16WR107, M16WR122, 3030CIS, E-BC3030C, GC3030, LC3030, 1010470, BS3030T, T3030T, WA3030T, S-16987, HDVSTD30UC, 14-493, 14-521, 14-522A cross-reference listing means this part may be a compatible replacement for these part numbers based on OEM or distributor data.
IMPORTANT INSTALLATION NOTES:
✔ Ensure brake chamber is properly oriented during installation; ports should face downward unless otherwise specified
✔ Always verify push rod length matches OEM specifications for application
✔ Use only with long stroke-compatible yokes and clevises
✔ Mount with OEM clamp band or LP3 base where specified
✔ Torque Specs:
• Clamp Band Nuts: 35–40 ft-lbs
• Push Rod Clevis: 25–30 ft-lbs
• Air Line Fittings: 15–20 ft-lbs
✔ Do not open sealed spring chamber – use only as complete unit
✔ Follow proper uncaging process before system pressurization
✔ Inspect and test for air leaks and chamber stroke after installation
✔ Replace corroded or damaged mounting hardware
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Warranty Information
