The Midland Haldex SC09 is a Size T9 brake service chamber for air brake systems on heavy-duty trucks and trailers. The actuator uses a standard stroke with 1.75 inches (44mm) of available travel. The steel pressure housing is powder-coated and features resistance-welded air ports, while the service housing is built with 12-gauge steel and a step bottom for added durability. A molded rubber diaphragm maintains flexibility down to -40°F. Dimensional callouts: A = 3.7 inches (94mm), D = 7.5 inches (190mm) at the service clampband, E = 3.00 inches (76.2mm) stud spacing with 7/16-14 UNC studs, J = 10.40 inches pushrod length with 1/2-20 UNF pushrod threads. Air port is positioned at 90°, service clampband at 0°. Also cross-references as MDSC09, BSC09, and SC9, among many other interchange numbers. Call us to confirm proper fit for your application.
A = Length from mounting bracket to end of spring housing: 3.7 in. (94mm)
D = Dimension at service clampband: 7.5 in. (190mm)
E = Stud spacing: 3.00 in. (76.2mm) with 7/16-14 UNC studs
J = Pushrod length from face of service housing: 10.40 in., 1/2-20 UNF pushrod threads
K = Distance to clevis pin centerline from face of service housing
T = Air port position: 90°
S1 = Service clampband position: 0°
Common cross-reference part numbers for SC09: MDSC09, BSC09, SC9, BSC-09, HDX-SC09, HDXSC09, KSC9, HALSC09, 09SC. Additional interchange numbers are on file, call Pro Gear and Transmission to verify the correct replacement for your brake system.
Features
Size T9 actuator with standard stroke type, 1.75 in. (44mm) available stroke
Powder-coated steel pressure housing with resistance-welded air ports
12-gauge steel step-bottom service housing, powder-coated for corrosion resistance
World-class rubber diaphragm rated for flexibility down to -40°F
Orange Alert stroke indicator for visual wear monitoring
Self-piloting dust shield included
Tech Specs
- Actuator Size: T9
- Stroke Type: Standard
- Available Stroke: 1.75 in. (44mm)
- A - Length from mounting bracket to end of spring housing: 3.7 in. (94mm)
- D - Dimension at service clampband: 7.5 in. (190mm)
- E - Stud spacing: 3.00 in. (76.2mm) with 7/16-14 UNC studs
- J - Pushrod length from face of service housing (1/2-20 UNF threads): 10.40 in.
- K - Distance to clevis pin centerline from face of service housing
- T - Air port position: 90°
- S1 - Service clampband position: 0°
- Quantity: 1
Additional Information
Dimensional reference guide for SC09:A = Length from mounting bracket to end of spring housing: 3.7 in. (94mm)
D = Dimension at service clampband: 7.5 in. (190mm)
E = Stud spacing: 3.00 in. (76.2mm) with 7/16-14 UNC studs
J = Pushrod length from face of service housing: 10.40 in., 1/2-20 UNF pushrod threads
K = Distance to clevis pin centerline from face of service housing
T = Air port position: 90°
S1 = Service clampband position: 0°
Common cross-reference part numbers for SC09: MDSC09, BSC09, SC9, BSC-09, HDX-SC09, HDXSC09, KSC9, HALSC09, 09SC. Additional interchange numbers are on file, call Pro Gear and Transmission to verify the correct replacement for your brake system.
