Air & Fuel System

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For Reference Only - Some Applications May Vary.


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  1. Kit, Hp Fuel Inj Line, Seal, Cyl 1,2,3 - A4700781810 - Detroit Diesel
    Price $73.59
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  2. Header - SSI,CONC, 6 Bolt, CMNS - 04-31354-004 - Freightliner
    Freightliner Header - SSI,CONC, 6 Bolt, CMNS
    Part# 04-31354-004 OLD# 04-31354-003
    Price $584.01
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  3. Clamp - Constant Torque HD SS #88 - CT550LTRP - TRP
    Price $12.57
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  4. Hump Hose, Cold Side CAC Assembly - D50-1076 - Paccar
    Price $71.66
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  5. Isolator - Air Cleaner, Rear, P3 - 03-36187-000 - Freightliner
    Price $20.05
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  6. Clamp, Constant Torque (6-1/2 In.) - CT650LTRP - TRP
    Price $12.79
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  7. Vacuator Valve, Air Cleaner - P525956 - Donaldson
    Donaldson Vacuator Valve, Air Cleaner
    Part# P525956 OLD# P52-5956
    Price $4.97
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  8. Elbow - Rubber, Reducer (5-1/2 X 5 In.) - 90HL55R50TR - Paccar
    Price $102.69
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  9. Tube - Fuel Draw Line - K88-1013-04010200 - Kenworth
    Kenworth Tube - Fuel Draw Line
    Part# K88-1013-04010200 OLD# -
    Price $229.89
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  10. Pipe - Air Intake 90deg 5 In. MLDRBR W/Logo - D66-1103-295 - Paccar
    Price $262.87
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  11. Kit-Service Throttle Control 132831 - 133525W1L - Williams Controls
    Price $553.51
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  12. KIT-Throttle Pedal Sensor Cummins - 134168 - Williams Controls
    Price $139.20
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  13. Fuel Bleed Valve - V38-1153 - Paccar
    Paccar Fuel Bleed Valve
    Part# V38-1153 OLD# -
    Price $37.94
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  14. Control Valve, HP Fuel Rail - 2136382PE - Paccar Engine
    Price $440.03
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  15. Supply Pipe - Fuel Dosing Module - 2021251PE - Paccar Engine
    Price $185.91
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  16. Pump-Fuel Lift - 1939435PE - Paccar Engine
    Paccar Engine Pump-Fuel Lift
    Part# 1939435PE OLD# -
    Price $480.57
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  17. Exhaust/Radiator Mount - Air to Air Bushing (High Temp) - EM75-69096-HT - Atro
    Price $13.96
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  18. Air Cooler Mount Kit - EM75-61001-HT - Atro
    Atro Air Cooler Mount Kit
    Part# EM75-61001-HT OLD# EM75-61001
    Price $125.36
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  19. Air Intake Pipe Y 6 Inch Rubber - D66-6305 - Peterbilt
    Price $505.00
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  20. Elbow - Air Intake (6 In. ID X 90 Deg) - 90HL6SR - Paccar
    Price $23.14
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  21. Fuel Injection Pipe - 2047596PE - Paccar Engine
    Paccar Engine Fuel Injection Pipe
    Part# 2047596PE OLD# 1930517PE
    Price $209.86
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  22. Fuel Injection Pipe - 2047595PE - Paccar Engine
    Paccar Engine Fuel Injection Pipe
    Part# 2047595PE OLD# 1930516PE
    Price $209.86
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  23. Steering & Fuel Lift Pump Assembly 16L - 1782345PEX - Paccar Engine

    Core charge

    Price $1,248.90
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  24. Steering & Fuel Lift Pump Assembly 17cc - 1885524PE - Paccar Engine
    Price $1,345.61
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  25. CAC Connector - Hot Side 4 In. DIA - FLX7716 - FlexFab
    Price $27.66
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  26. CAC Connector - Hot Side 4 Inch DIA - FLX7715-0002 - FlexFab
    Price $26.70
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  27. Duraguard Charge Air Connector - 4 Inch DIA - FLX1070-0003 - FlexFab
    Price $48.11
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  28. Fuel Pump Tester - 5573247 - Cummins
    Cummins Fuel Pump Tester
    Part# 5573247 OLD# 3164621
    Price $328.86
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  29. Fuel Pump Support - 3687025 - Cummins
    Cummins Fuel Pump Support
    Part# 3687025 OLD# -
    Price $52.44
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  30. Hose-Hump CAC Assembly Red - D50-6039 - Paccar
    Price $61.17
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  31. Roller - 131139 - Williams Controls
    Williams Controls Roller
    Part# 131139 OLD# -
    Price $23.80
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  32. Injector - 3411760PX - Cummins
    Cummins Injector
    Part# 3411760PX OLD# -

    Core charge

    Price $901.23
    Ships Today
  33. CAC Connector - Hot Side 4 In. DIA - FLX7723D - FlexFab
    Price $23.41
    Ships Today
  34. Tube, Injector Fuel Supply - 2899571 - Cummins
    Price $127.67
    Ships within 72 hours
  35. Tube, Injector Fuel Supply - 2899572 - Cummins
    Price $128.38
    Ships within 72 hours
  36. Tube, Injector Fuel Supply - 2899573 - Cummins
    Price $127.53
    Ships within 72 hours
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What is the Air & Fuel System in trucks?

The air and fuel system in trucks and semis is a complex system, composed of many parts. Making sure all of them are replaced in time and well-maintained will allow your vehicle to remain safe and efficient on the road, allowing you to save money on fuel and repairs.

Main components of Air & Fuel Systems in trucks and semis

The air intake system is one of the most basic components of every air and fuel system in trucks and semis. The system draws in fresh air from outside, filters it to remove dust and debris, and directs it into the engine’s combustion chamber. Its key parts include the air filter, intake manifold, and throttle body, all of which need to be well-maintained at all times.

Just as the air intake system provides air to the engine, the fuel delivery system provides fuel. It includes the fuel tank, fuel pump, fuel filter, fuel lines, and fuel injectors - or a carburetor in older trucks. The fuel pump sends fuel from the tank through the fuel filter and lines to the injectors (or carburetor), which mix fuel and air to create an efficient mixture that enters the combustion chamber.

Maintaining your Air & Fuel System 

By keeping the air and fuel system well-maintained, truck owners can ensure better engine performance, fuel efficiency, and safety, all essential for the truck’s long-term operation. Replace all the essential parts when necessary, and your truck will thank you for it.

You can find a wide range of air and fuel system parts at Big Rig World, with many options for different types of vehicles. From tubes and hoses to valves and fuel pumps, Big Rig World offers a variety of high-quality parts for trucks and semis at affordable prices.