The part system is a critical piping assembly that conveys compressed air from the air compressor to the air dryer and brake system on the HOWO MAX 4X2 tractor. This genuine HOWO Compressor outlet lo kit includes the steel exhaust pipe, hose assembly, spiral pipe bracket, clamp plate, flange hardware, and a heat-resistant quick connector – all engineered for leak-free, durable performance. When you choose authentic Howo Parts, this Compressor outlet lo kit guarantees OE fitment, high-temperature resistance, and reliable air delivery. Below are detailed descriptions of every component included with this Compressor outlet lo assembly.
Four M6 hex flange nuts are supplied to secure The part components to their mounting points. The flange acts as a built-in washer, providing a larger bearing surface and eliminating the need for separate washers. These nuts are made from zinc-plated steel and are torqued to 10 Nm, ensuring a vibration-proof hold for The part bracket and clamp plate assembly.
Four flat washers (Q401B06) are used under the bolt heads or nuts to distribute the clamping load evenly. These Compressor outlet lo washers prevent the fastener from embedding into the softer bracket or clamp plate material, ensuring consistent clamp force. They are made from hardened steel with a zinc-plated finish for corrosion resistance.
The spiral pipe bracket is a precision-formed steel support that secures The part pipes and hoses to the chassis. This bracket is designed to absorb vibration and maintain proper clearance between the pipes and surrounding components. The bracket is powder-coated for corrosion resistance and includes pre-drilled holes for the M6 fasteners.
Four M6 flange bolts are used to secure the spiral pipe bracket and the clamp plate to the engine or chassis. These Compressor outlet lo bolts feature an integrated flange that distributes clamping load evenly, eliminating the need for separate washers. The bolts are grade 8.8, zinc-plated, and torqued to 10 Nm for a secure, long-lasting hold.
Eight clamp plates are supplied to secure The part hoses and pipes in position. These plates are stamped from spring steel with a rubber lining to prevent chafing and absorb vibration. The clamp plate design allows for quick installation and adjustment, ensuring the pipes remain securely routed without contacting hot or moving parts.
The hose assembly is a flexible, reinforced rubber hose that connects The part steel pipe to the air dryer or the next component in the air circuit. This hose is made from oil-resistant NBR with a textile braid reinforcement, rated for 12 bar working pressure and temperatures up to 120°C. The hose is pre-cut to the correct length for the MAX 4X2 chassis and includes crimped end fittings for a secure, leak-free connection.
This steel exhaust pipe is the primary rigid conduit that carries hot compressed air from the air compressor outlet to the hose assembly. The part pipe is made from seamless steel with a corrosion-resistant coating, sized at 16mm outer diameter. It is precision-bent to match the MC/MT13 China VI engine layout, ensuring correct routing and clearance. The pipe includes flared ends for secure fitting connections.
This heat-resistant C-type straight-through quick connector joins the steel pipe to the hose or to other air line components. The part connector features a M10x1 thread on one end and a 6mm push-to-connect fitting on the other. It is made from brass with a high-temperature sealing O-ring, rated for continuous operation up to 150°C. The quick-connect design allows for fast assembly and disassembly without tools.
Compressor outlet lo – genuine HOWO air compressor outlet piping and hardware kit for MAX 4X2
This Compressor outlet lo kit includes the steel pipe, hose, bracket, clamps, and all fasteners required for a full installation. No additional parts are needed to connect the air compressor outlet to the air dryer or reservoir.
The steel exhaust pipe and the quick connector in this Compressor outlet lo kit are designed to withstand high temperatures generated by the air compressor. The materials resist oxidation and maintain structural integrity, ensuring long service life.
The spiral pipe bracket and clamp plates in this Compressor outlet lo kit are stamped to the exact dimensions of the MAX 4X2 chassis, ensuring proper routing and clearance. The rubber-lined clamps prevent chafing and reduce vibration.
The heat-resistant C-type quick connector simplifies installation and maintenance of The part system. The push-to-connect fitting allows for fast disconnection without tools, reducing service time.
The part system conveys pressurised air from the air compressor (mounted on the engine) to the air dryer and the primary air reservoir. The compressor draws in atmospheric air, compresses it, and delivers it through the steel exhaust pipe. The high-temperature compressed air then passes through the hose assembly, where it is routed to the air dryer for moisture removal.
The spiral pipe bracket and clamp plates secure the piping to the chassis, absorbing engine vibration and preventing metal fatigue. The quick connector allows the hose to be easily disconnected for service. The hex flange nuts and bolts ensure that the entire Compressor outlet lo assembly remains securely attached, even under severe vibration.
A properly installed Compressor outlet lo system ensures that the brake system receives a continuous supply of clean, dry air, which is essential for safe and reliable braking performance. Any leaks in The part piping can result in reduced air pressure, increased compressor run time, and potential brake system failure. Regular inspection of The part components is recommended to maintain system integrity.
Before installation, depressurise the air system and disconnect the battery. Remove the old Compressor outlet lo pipe and hose. Clean the compressor outlet port and the chassis mounting points. Install the steel exhaust pipe onto the compressor outlet,
torquing the fitting to 25 Nm. Position the spiral pipe bracket on the chassis and secure it using the M6 flange bolts and hex flange nuts (torque 10 Nm). Attach the hose assembly to the steel pipe using the heat-resistant quick connector.
Route the hose to the air dryer or reservoir, securing it with the clamp plates at intervals along the chassis. Connect the hose end to the inlet of the air dryer or next component. Check that The part pipes and hoses are clear of moving parts and hot surfaces. Reconnect the battery and pressurise the system, checking for leaks with soapy water. The part installation is now complete.
If The part system develops an air leak, inspect the connections at the steel pipe, the quick connector, and the hose ends. A hissing sound usually indicates a loose fitting; retorque or replace the quick connector O-ring. If the steel pipe shows signs of cracking or corrosion,
it must be replaced immediately. A vibrating or rattling pipe indicates a loose bracket or missing clamp plate; secure The part components using the provided hardware. If the hose is chafed or damaged, replace the hose assembly. Always use genuine Compressor outlet lo components to ensure correct fit and compatibility with the high temperatures and pressures of the air system.
Inspect The part system every 50,000 km or annually. Check the steel pipe for rust or damage. Inspect the hose assembly for cracks, bulges, or chafing. Ensure all brackets and clamps are secure, retorquing the M6 fasteners if necessary.
Replace the quick connector O-ring if it shows signs of hardening or leakage. During routine air system maintenance, drain moisture from the reservoir to prevent it from reaching The part components. If the vehicle operates in dusty or off-road conditions, inspect The part more frequently. Regular maintenance of The part ensures reliable air supply to the brake system and extends the service life of the air compressor.
This Compressor outlet lo kit is specifically designed for the HOWO MAX 4X2 tractor with MC13 and MT13 China VI engines. It is compatible with all production years from 2020 onward. The steel pipe size (16mm OD) and the quick connector (M10x1) match the standard fittings used on these engines. The part kit is also suitable for SITRAK C7H and HOWO T7H models that share the same air compressor and chassis layout.
It is not compatible with older MC11 engines or vehicles with non-China VI emissions systems, which use different pipe routing and connector types. Always verify your vehicle’s engine and chassis configuration before ordering The part kit.
Aftermarket Compressor outlet lo components often use sub-standard materials that cannot withstand the high temperatures and pressures of the air compressor discharge. Generic steel pipes may have thin walls that crack under thermal stress, leading to sudden air loss. Non-genuine hoses may use inferior rubber that degrades quickly,
causing leaks or hose blow-outs. Counterfeit quick connectors may not seal properly, resulting in continuous air leaks and increased compressor cycling. A failure in The part system can lead to insufficient air pressure in the brake reservoir,
compromising stopping distance and safety. Genuine HOWO Compressor outlet lo components are manufactured to Sinotruk’s exacting standards, using certified materials, precision-formed brackets, and high-temperature seals. The small additional cost of a genuine Compressor outlet lo kit is insignificant compared to the safety risk and repair cost of a failed air system.
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