The cooling system is the lifeblood of your engine, and the coolant connecting rubber pipe is a critical conduit that ensures uninterrupted circulation of coolant between the engine block, radiator, and heater core. The 612600062156 Coolant Connecting Rubber Pipe from HOWO is engineered to deliver exceptional flexibility, outstanding resistance to heat and pressure, and a precise factory fit, guaranteeing that your engine maintains optimal operating temperatures under the most demanding conditions. As a vital Howo/Sitrak truck parts component, this coolant hose is manufactured from high-grade EPDM rubber with a robust textile reinforcement, offering superior resistance to coolant additives, ozone, and extreme temperature fluctuations. Whether you are replacing a worn hose or performing a complete cooling system overhaul, the 612600062156 delivers factory-spec performance, leak-free sealing, and lasting reliability – making it the trusted choice for professional workshops and fleet operators worldwide.
The coolant connecting rubber pipe is the flexible link that transfers coolant between rigid components, absorbing engine vibration and accommodating thermal expansion while maintaining a leak-free seal. The 612600062156 is specifically designed to withstand the harsh under-hood environment, including temperatures ranging from -40°C to +125°C, exposure to aggressive coolant additives, and constant pressure cycling. A cracked, swollen, or degraded hose can lead to coolant loss, engine overheating, and costly repairs. HOWO has engineered this pipe with a multi-layer construction: a smooth, non-porous inner liner that resists coolant permeation, a high-strength textile reinforcement that provides burst strength, and a durable outer cover that resists ozone, oil, and abrasion. The precise pre-formed bends and exact length match the original routing, eliminating the need for cutting or adapters. With the 612600062156, you restore the original cooling system integrity, prevent leaks, and ensure that your engine stays cool and reliable, mile after mile.
Leak-Proof
Zero Seepage
Heat Resistant
-40°C to +125°C
OEM Fit
Exact Match
Reinforced
Textile Braid
Accurate technical data ensures correct selection and installation. The 612600062156 is manufactured to strict OEM tolerances, guaranteeing seamless integration with your HOWO cooling system.
| Parameter | Specification | Detail |
|---|---|---|
| OEM Number | 612600062156 | Exact Match |
| Part Name | Coolant Connecting Rubber Pipe | HOWO Genuine |
| Brand | HOWO | Original Equipment |
| Application | HOWO T7H / A7 / MC11/MC13 | Coolant circulation |
| Material | EPDM rubber with textile reinforcement | Heat & coolant resistant |
| Inner Diameter | 32 mm | Precision-sized |
| Outer Diameter | 40 mm | Standard fitment |
| Overall Length | 180 mm | Pre-formed |
| Max Working Pressure | 2.0 bar (29 psi) | Burst > 10 bar |
| Temperature Range | -40°C to +125°C | Wide operating range |
| Coolant Compatibility | Ethylene glycol / water (up to 50%) | Excellent resistance |
| Weight | 0.25 kg | Lightweight |
| Warranty | 12 Months | Manufacturer Guarantee |
The 612600062156 coolant connecting rubber pipe is produced using advanced extrusion and mandrel-building techniques, ensuring consistent wall thickness and a smooth internal surface that minimises flow resistance. The inner liner is formulated to resist the aggressive additives in modern coolants, preventing swelling or degradation that could restrict flow. The textile reinforcement, typically consisting of high-tenacity polyester or aramid fibres, is applied in a precise spiral pattern, providing excellent burst strength and resistance to vacuum collapse. The outer cover is compounded to resist ozone, UV, and weathering, ensuring the hose remains flexible and crack-free over its long service life. Each pipe is factory-cut and may include pre-formed bends or straight sections to match the original routing, eliminating the need for cutting or adapters. The ends are engineered to accept standard hose clamps, ensuring a secure, leak-free connection. Each unit is tested for burst pressure, vacuum resistance, and dimensional accuracy, guaranteeing that the 612600062156 meets HOWO’s stringent quality standards. This meticulous engineering ensures that your coolant system operates reliably, delivering consistent cooling performance mile after mile.
The 612600062156 is specifically designed for HOWO heavy-duty trucks equipped with MC11 and MC13 engine families, including T7H, A7, and derivative models. It directly replaces the original coolant connecting hose with identical dimensions, bend angles, and connection sizes, ensuring a straightforward installation without modifications. The pipe is compatible with all factory-specified hose clamps and works seamlessly with the radiator, thermostat housing, and water pump connections. This coolant pipe is also compatible with many Sinotruk and other commercial vehicles that share the same cooling system architecture. To confirm fitment, always cross-reference the OEM number on your existing hose with 612600062156. If they match, this component will integrate seamlessly. Keeping this pipe in your spare parts inventory enables rapid cooling system repairs, minimising downtime and preserving the performance and reliability of your engine.
HOWO T7H
Primary Fitment
HOWO A7
Also Compatible
MC11/MC13
Engine Series
Direct Replacement
No Modifications
Replacing a degraded, cracked, or swollen coolant hose with the 612600062156 immediately restores the integrity of your cooling system. The smooth internal bore and precise diameter ensure optimal coolant flow, allowing the engine to maintain stable temperatures even under heavy loads and extreme ambient conditions. The robust reinforcement prevents the hose from collapsing under vacuum or bulging under pressure, ensuring consistent circulation and heat transfer. The durable EPDM material resists hardening and cracking, extending the service life of the hose and reducing the risk of unexpected failures. The leak-free seal prevents coolant loss, protecting your engine from overheating and corrosion. For fleet operators, a reliable coolant pipe reduces the risk of cooling system breakdowns, lowers maintenance costs, and helps maintain the performance and efficiency of your vehicles. By investing in the 612600062156, you ensure that your HOWO truck’s cooling system operates at its best, mile after mile.
Installing the 612600062156 coolant connecting rubber pipe is a simple procedure. Begin by safely draining the coolant to a level below the hose connection. Remove the old hose by loosening the hose clamps and carefully pulling the hose off the fittings. Clean the connection points on the engine, radiator, or thermostat housing, ensuring they are free of old sealant, dirt, and corrosion. Inspect the clamps for wear or damage; replace them if necessary. Apply a thin film of coolant-resistant sealant to the fitting surfaces (optional) and slide the new hose onto the fittings, ensuring it is fully seated and correctly oriented. Tighten the hose clamps to the manufacturer’s recommended torque. Refill the cooling system with the correct coolant mixture, start the engine, and check for any leaks. Periodically inspect the hose for signs of cracking, swelling, or damage during routine maintenance. With proper installation, the 612600062156 will provide years of reliable service.
Pro Tip: When replacing a coolant hose, always use new high-quality hose clamps (preferably constant-tension type) to ensure a secure, leak-free connection. The 612600062156 is designed to work with standard clamps; using OEM-spec clamps guarantees optimal sealing and longevity.
Genuine HOWO components are engineered to the highest standards, and the 612600062156 coolant connecting rubber pipe is no exception. Aftermarket hoses often use inferior rubber compounds, inadequate reinforcement, or imprecise dimensions, leading to premature cracking, swelling, or leakage. HOWO’s hose is manufactured using the same materials and processes as the original equipment, guaranteeing a perfect fit and reliable performance. By choosing the 612600062156, you benefit from HOWO’s rigorous testing, including pressure cycling, temperature resistance, and coolant compatibility tests. This ensures that the hose 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 612600062156 coolant pipe?
A: The 612600062156 is designed for HOWO T7H, A7, and other models with MC11/MC13 engines, as well as many Sinotruk trucks with the same cooling system layout.
Q: What are the symptoms of a failing coolant hose?
A: Visible cracks or swelling, coolant leaks, low coolant levels, overheating, and a sweet smell of coolant are common indicators.
Q: Can I use a generic hose instead?
A: Generic hoses may not have the correct length, bend angles, or reinforcement, leading to poor fitment and potential failure. The 612600062156 is specifically engineered for your vehicle to ensure perfect fit and reliable performance.
Q: How do I verify the correct part?
A: Check the OEM number on your existing hose. If it matches 612600062156, this is the exact replacement. Consult your vehicle’s parts manual for additional confirmation.
Order your 612600062156 Coolant Connecting Rubber Pipe today! Explore our complete selection of genuine HOWO and Sinotruk cooling system components at Howo/Sitrak truck parts and keep your engine running cool and efficiently.
The 612600062156 Coolant Connecting Rubber Pipe from HOWO is a testament to precision engineering and uncompromising quality. By choosing this genuine component, you ensure that your engine’s cooling system delivers the reliability, efficiency, and durability required for modern heavy-duty trucking. Whether you are a professional mechanic or a fleet manager, this coolant pipe offers the performance, 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.
We are a heavy-duty truck parts store. Please leave your contact information and inquiries. We will respond within 12 hours.
