The air compressor is a critical component of your truck’s braking and pneumatic systems, and effective cooling is essential to maintain its performance and longevity. The 612600130788 Air Compressor Water Pipe Assembly from HOWO is engineered to deliver reliable coolant circulation, superior heat dissipation, and a precise factory fit, ensuring that your air compressor operates at optimal temperatures under the most demanding conditions. As a vital Howo/Sitrak truck parts component, this water pipe assembly is manufactured from high‑grade steel with precision‑formed ends and a durable corrosion‑resistant coating, providing a secure, leak‑free connection between the engine cooling system and the air compressor. Whether you are replacing a worn pipe or performing a full air system overhaul, the 612600130788 guarantees a perfect factory fit, reliable coolant flow, and extended compressor life – making it the trusted choice for professional workshops and fleet operators worldwide.
The air compressor water pipe assembly is responsible for circulating engine coolant through the compressor head, dissipating the significant heat generated during compression and preventing overheating. The 612600130788 is specifically designed to provide a reliable, unrestricted flow of coolant, maintaining the compressor at a consistent operating temperature and preventing thermal damage to internal components. A blocked, corroded, or leaking water pipe can lead to compressor overheating, reduced efficiency, and premature failure – potentially compromising your vehicle’s braking system. HOWO has engineered this water pipe assembly with a precision‑formed steel tube that resists kinking and corrosion, and precision‑machined end fittings that ensure a leak‑free seal with the engine block and compressor. The assembly is also designed to withstand the high temperatures and pressure fluctuations of the engine cooling system. With the 612600130788, you restore the original coolant flow to your air compressor, protecting your investment and ensuring the reliable operation of your vehicle’s braking and auxiliary air systems.
Coolant Flow
Consistent Cooling
Leak‑Proof
Precision Fittings
OEM Fit
Exact Replacement
Heat Resistant
Withstands High Temperatures
Accurate engineering data ensures correct application and installation. The 612600130788 is manufactured to the highest OEM standards, guaranteeing seamless integration with your HOWO air compressor cooling system.
| Parameter | Specification | Detail |
|---|---|---|
| OEM Number | 612600130788 | Exact Match |
| Part Name | Air Compressor Water Pipe Assembly | HOWO Genuine |
| Brand | HOWO | Original Equipment |
| Application | HOWO T7H / A7 / MC11/MC13 | Air compressor cooling |
| Material | High‑grade steel (DIN 2391) | Zinc‑plated |
| Tube Outer Diameter | 16 mm | Standard |
| Overall Length | 380 mm | End‑to‑end |
| End Fittings | Swivel nut (M18 x 1.5) both ends | Pre‑installed seals |
| Max Operating Pressure | 5 bar (72.5 psi) | Coolant system |
| Temperature Range | -40°C to +150°C | Extreme duty |
| Weight | 0.55 kg | Complete assembly |
| Warranty | 12 Months | Manufacturer Guarantee |
The 612600130788 air compressor water pipe assembly is produced using advanced tube bending and welding techniques that ensure consistent internal diameter and smooth flow characteristics. The steel tube is drawn to exacting tolerances, then cut and formed to the required length and bend profile to match the original routing. The ends are fitted with precision‑machined swivel nuts that are double‑sealed to prevent coolant seepage, even under pressure fluctuations. The entire assembly is zinc‑nickel plated and passivated, providing a robust barrier against corrosion and wear. Each unit is pressure‑tested to verify leak integrity and inspected for dimensional accuracy, guaranteeing that the 612600130788 meets HOWO’s strict quality standards. This engineering excellence ensures that your air compressor receives a reliable, unrestricted supply of coolant, maintaining proper operating temperatures for long‑lasting, dependable operation.
The 612600130788 air compressor water pipe assembly is specifically designed for HOWO heavy‑duty trucks equipped with MC11 or MC13 engines, including T7H, A7, and derivative models. It directly replaces the original water pipe, with identical length, end fittings, and routing, ensuring a straightforward installation without modifications. The pipe is compatible with both standard and heavy‑duty air compressor configurations. This water pipe assembly is also compatible with many Sinotruk and other commercial vehicles that share the same engine and compressor architecture. To confirm fitment, always cross‑reference the OEM number on your existing pipe with 612600130788. If they match, this component will integrate seamlessly. Keeping this pipe in your spare parts inventory enables rapid air system repairs, minimising downtime and preserving the reliability of your braking and auxiliary air systems.
HOWO T7H
Primary Fitment
HOWO A7
Also Compatible
MC11/MC13
Engine Series
Direct Replacement
No Modifications
Replacing a corroded, kinked, or leaking air compressor water pipe with the 612600130788 immediately restores the proper coolant flow to your air compressor. The smooth internal bore and precise routing ensure that engine coolant reaches the compressor at the correct flow rate, maintaining optimal operating temperatures and preventing overheating. This reduces wear on the compressor’s pistons, cylinders, and valves, extending its service life and preventing costly failures. The leak‑proof connections eliminate the risk of coolant loss, which can lead to engine overheating and potential damage. The corrosion‑resistant coating also ensures that the pipe remains functional and easy to service over time, without seizing or weakening. For fleet operators, a reliable coolant pipe reduces air compressor‑related breakdowns, lowers maintenance costs, and helps maintain the performance and reliability of your braking and auxiliary air systems. By investing in the 612600130788, you ensure that your HOWO truck’s air compressor operates smoothly and reliably, mile after mile.
Installing the 612600130788 air compressor water pipe assembly is a straightforward procedure. Begin by safely supporting the vehicle and relieving the cooling system pressure. Remove the old pipe by loosening the fittings at both ends and carefully withdrawing it from the vehicle. Clean the fitting surfaces and inspect the threads for damage. Install the new pipe, ensuring it follows the original routing without sharp bends or kinks. Torque the fittings to the manufacturer’s specification, using new sealing washers if provided. After installation, refill the cooling system with the correct coolant mixture, start the engine, and check for any leaks at the connections. Periodically inspect the pipe for signs of corrosion or abrasion, and replace it if any damage is found. With proper installation, the 612600130788 will provide reliable, leak‑free coolant delivery for many years.
Pro Tip: When replacing the coolant pipe, it is recommended to also inspect the air compressor’s coolant inlet and outlet fittings for any signs of wear or damage. The 612600130788 is designed to work with OEM‑spec fittings; ensuring all connections are clean and properly torqued will guarantee a leak‑free installation.
Genuine HOWO components are engineered to the highest standards, and the 612600130788 air compressor water pipe assembly is no exception. Aftermarket pipes often use inferior steel, thinner walls, or lack proper corrosion protection, leading to premature rust, pinhole leaks, and failure. HOWO’s pipe is manufactured using the same materials and processes as the original equipment, guaranteeing a perfect fit and reliable performance. By choosing the 612600130788, you benefit from HOWO’s rigorous testing, including pressure, vibration, and corrosion tests. This ensures that the pipe meets the demanding requirements of heavy‑duty trucking. Moreover, genuine parts are backed by a comprehensive warranty and supported by HOWO’s global network, giving you confidence in your purchase.
OEM Authentic
Factory Quality
Long Service
Extended Life
Global Standard
Trusted Worldwide
Q: Which vehicles use the 612600130788 air compressor water pipe assembly?
A: The 612600130788 is designed for HOWO T7H, A7, and other models with MC11/MC13 engines, as well as many Sinotruk trucks with the same air compressor cooling setup.
Q: What are the symptoms of a failing air compressor water pipe?
A: Coolant leaks around the compressor area, overheating of the air compressor, reduced compressor efficiency, and visible corrosion or cracks on the pipe are common indicators.
Q: Does the pipe come with new fittings?
A: Yes, the 612600130788 is supplied with pre‑installed swivel nuts and seals, ready for installation.
Q: How do I verify the correct part?
A: Check the OEM number on your existing pipe. If it matches 612600130788, this is the exact replacement. Consult your vehicle’s parts manual for additional confirmation.
Order your 612600130788 Air Compressor Water Pipe Assembly today! Explore our complete selection of genuine HOWO and Sinotruk air system components at Howo/Sitrak truck parts and keep your air compressor properly cooled and protected.
The 612600130788 Air Compressor Water Pipe Assembly from HOWO is a testament to precision engineering and uncompromising quality. By choosing this genuine component, you ensure that your truck’s air compressor receives the vital cooling it needs to operate reliably, protecting your braking system and auxiliary air components. Whether you are a professional mechanic or a fleet manager, this water pipe assembly offers the durability, reliability, and exact fit that you can count on. Trust HOWO – the benchmark for excellence in heavy‑duty truck components – and experience the difference that genuine quality makes.
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