Air Brake System parts and their functions

13 top-level parts · 728 parts in total · full bill of materials below

#	Part	Qty	What it does
1	Air Compressor	1×	Engine-driven reciprocating compressor.
2	Air Reservoir Tank	2×	Steel compressed-air reservoir.
3	Brake Chamber 1 parts	4×	Spring-brake diaphragm actuator.
4	ABS Module 2 parts	1×	Anti-lock brake control unit.
5	Coolant Hose	4×	air lines
6	Air Line Fitting	320×	Push-in or compression fitting in the compressed-air system.
7	Air Line	60×	Nylon tube run of the brake, suspension or door air system.
8	Air Valve	22×	Protection, relay, quick-release or solenoid valve in the air system.
9	Brake Disc	6×	Ventilated disc at each wheel end.
10	Brake Pad Set	6×	Friction pads for one air disc brake.
11	Air Disc Brake Caliper	6×	Pneumatically actuated caliper with automatic adjuster.
12	Body Bolt	80×	Flanged hex bolt used throughout the body, floor and equipment mounts.
13	Cable Tie & Harness Clip	120×	Tie or clip securing wiring, air lines and hoses to the frame.

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Bill of materials for Air Brake System

13 top-level lines · 20 rows shown · 728 parts total · indented to 3 levels

#	Item / sub-assembly	Part no.	Qty/assy	Ext. qty	Parts	Type
1	Air Compressor	city-bus-air-compressor	1×	1	·	part
2	Air Reservoir Tank	city-bus-air-tank	2×	2	·	part
3	Brake Chamber 1 parts	city-bus-brake-chamber	4×	4	1	assembly
3.1	O-Ring Set	oring-set	1×	4	·	part
4	ABS Module 2 parts	city-bus-abs-module	1×	1	97	assembly
4.1	Electronic Control Unit 4 parts	ecu	1×	1	93	assembly
4.1.1	Bare PCB	pcb-bare	1×	1	·	part
4.1.2	Microcontroller	mcu	1×	1	·	part
4.1.3	CAN Transceiver	can-transceiver	1×	1	·	part
4.1.4	SMD Passive (R/C/L)	smd-passives	90×	90	·	part
4.2	Wheel Speed Sensor	city-bus-wheel-speed-sensor	4×	4	·	part
5	Coolant Hose	coolant-hose	4×	4	·	part
6	Air Line Fitting	city-bus-air-fitting	320×	320	·	part
7	Air Line	city-bus-air-line	60×	60	·	part
8	Air Valve	city-bus-air-valve	22×	22	·	part
9	Brake Disc	city-bus-brake-disc	6×	6	·	part
10	Brake Pad Set	city-bus-brake-pad	6×	6	·	part
11	Air Disc Brake Caliper	city-bus-brake-caliper	6×	6	·	part
12	Body Bolt	city-bus-body-bolt	80×	80	·	part
13	Cable Tie & Harness Clip	city-bus-cable-tie	120×	120	·	part

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Where the air brake system is used

1 product across 1 domain contain it, directly or inside a sub-assembly

• Rail & Transit 1 City Bus

Used in 1 assembly

City Bus

Sourcing: possible vendors

Browse the supplier directory → Prices, MOQ, and lead times are algorithmic estimates, not quotes, and not claims about these companies. Company mappings are curated by keyword; est. price band $0.50–$100. How estimates work

Vendor	HQ	Specialty	MOQ	Lead time
🇨🇳Foxconn foxconn.com ↗	Shenzhen, CN	Electronics contract mfg	1,000 pcs	6–10 wks
🇸🇬Flex (Singapore) flex.com ↗	Singapore	Electronics contract mfg	1,000 pcs	6–10 wks
🇮🇳Dixon Technologies dixoninfo.com ↗	Noida, IN	Electronics contract mfg	1,000 pcs	6–10 wks
🇨🇳BYD Electronics bydelectronic.com ↗	Shenzhen, CN	Electronics contract mfg	1,000 pcs	6–10 wks
🇸🇬Venture Corp venture.com.sg ↗	Singapore	Electronics contract mfg	1,000 pcs	6–10 wks