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 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.
A factory handling fee of $25.00 per unit is added at checkout.
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 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.
