802980
Left-Hand Air Chamber, 20 in
Bendix

Left-hand air chamber for a 20-inch bore is a critical element of the air brake subsystem, serving as a storage and actuation device that translates compressed air into braking force. VMRS 013-013-060 places this part within the chamber family used for primary braking power delivery, while the dimension fields provide exact mechanical interface data: clamp angle 240 degrees, stud length 1.70 inches, stroke length 2.50 inches, push rod length 0.59 inches, stud thread size M16 X 1.50 mm, service port thread size 3/8-18 NPTF, and mounting stud center-to-center length 4.75 inches. Temperature ratings span -40 to 176 degrees Fahrenheit, informing the operating envelope for diverse climates and vehicle assignments. Category 42848 confirms its role among chamber assemblies used across various air brake platforms. Correct selection and replacement of this chamber type are essential to achieving consistent braking force, predictable chamber travel, and reliable actuator performance. When installed in compatible applications, it contributes to stable brake response, reduced pedal effort variation, and safer stopping across a range of loads and road conditions. Fleet managers should verify port sizes, rod lengths, and mounting arrangements to ensure proper fitment and optimal performance.