The air intake hose is a critical component that directly impacts your engine’s breathing capacity and overall performance. The WG9725191432 2 AIR INTAKE HOSE (HOWO) is engineered to provide maximum airflow, exceptional heat resistance, and a precise fit, ensuring your HOWO engine receives the clean, uninterrupted air it needs to deliver optimal power and fuel economy. As a vital Howo/Sitrak truck parts component, this intake hose is constructed from high‑grade silicone with a robust fabric reinforcement, offering outstanding resistance to high temperatures, oil, and ozone, while maintaining flexibility across a wide temperature range. Its smooth internal bore and optimized curvature minimize turbulence and pressure drop, enabling your turbocharger to spool faster and your engine to respond more eagerly. Whether you are replacing a worn, cracked hose or upgrading your air induction system, the WG9725191432 2 guarantees a perfect OEM fit, extended service life, and consistent performance, making it the trusted choice for professional workshops and fleet operators worldwide.
The air intake hose serves as the conduit that delivers filtered air from the air cleaner to the turbocharger inlet. The WG9725191432 2 is specifically engineered to withstand the extreme under‑hood temperatures, constant vibration, and exposure to oil and fuel vapours that are common in heavy‑duty diesel engines. A compromised hose – whether from cracking, softening, or internal delamination – can restrict airflow, leading to reduced power, poor throttle response, increased fuel consumption, and higher exhaust emissions. HOWO has designed this hose with a multi‑layer construction: a smooth inner liner that reduces friction, a high‑strength textile reinforcement that prevents collapse under vacuum, and a durable outer cover that resists ozone, UV, and abrasion. The precision‑formed bends and exact lengths match the original routing, eliminating the need for modifications. With the WG9725191432 2, you restore the original intake airflow, ensuring that your engine breathes freely and delivers the performance it was designed for.
Optimal Flow
Minimal Restriction
Heat Resistant
Up to 150°C
OEM Fit
Exact Replica
Reinforced
Burst Proof
Precise technical data ensures correct selection and installation. The WG9725191432 2 is manufactured to strict OEM tolerances, guaranteeing seamless integration with your HOWO air intake system.
| Parameter | Specification | Detail |
|---|---|---|
| OEM Number | WG9725191432 2 | Exact Match |
| Part Name | AIR INTAKE HOSE (HOWO) | Genuine HOWO |
| Brand | HOWO | Original Equipment |
| Application | HOWO T7H / A7 / MC11/MC13 | Air filter to turbo |
| Material | Silicone / EPDM rubber | Reinforced with fabric |
| Inner Diameter (Filter side) | 100 mm | to 90 mm (Turbo side) |
| Overall Length | 510 mm | With preformed bends |
| Working Temperature | -40°C to +150°C | Suitable for all climates |
| Max Burst Pressure | 4.0 bar (58 psi) | High safety margin |
| Reinforcement | 2‑ply synthetic fabric | Prevents collapse |
| Weight | 0.95 kg | Lightweight |
| Warranty | 12 Months | Manufacturer Guarantee |
The WG9725191432 2 is produced using advanced extrusion and mandrel‑building techniques that ensure consistent wall thickness and an exceptionally smooth internal surface. The inner liner is engineered to resist attack from oil, fuel, and coolant vapours, while the fabric reinforcement provides the structural integrity needed to prevent collapse under the high vacuum conditions that can occur during sudden throttle closure or when the air filter is partially blocked. The outer cover is formulated to resist ozone, UV radiation, and weathering, ensuring that the hose remains flexible and crack‑free over its long service life.
The hose ends are precision‑cut and may feature additional reinforcement, such as a wire helix or extra fabric layers, to maintain shape and prevent kinking at the critical connection points. The internal diameter is carefully stepped or tapered to match the airflow requirements of the original design, optimising velocity and reducing turbulence. Each hose is subjected to rigorous testing, including burst pressure, vacuum resistance, and dimensional verification, using automated inspection systems. This meticulous engineering guarantees that the WG9725191432 2 delivers consistent, unrestricted airflow, contributing to optimal combustion, reduced emissions, and improved fuel efficiency.
The WG9725191432 2 is specifically designed for HOWO T7H and A7 trucks equipped with MC11 or MC13 engines, as well as many Sinotruk models with similar air induction systems. It directly replaces the original air intake hose with identical port diameters, overall length, and routing geometry, ensuring a straightforward, hassle‑free installation without the need for adapters or modifications. The hose is compatible with both standard and heavy‑duty air filter housings and mates seamlessly with the stock turbocharger inlet.
To confirm fitment, always cross‑reference the OEM number on your existing hose with WG9725191432 2. If they match, this component will integrate flawlessly. Keeping this hose in your spare parts inventory enables rapid air system repairs, minimising downtime and preserving the performance and reliability of your engine.
HOWO T7H
Primary Fitment
HOWO A7
Also Compatible
Induction System
Air Filter to Turbo
Direct Fit
No Alterations
Replacing a deteriorated intake hose with the WG9725191432 2 immediately restores the full airflow capacity of your engine. The smooth internal bore and optimised geometry significantly reduce pressure drop, allowing the turbocharger to spool more rapidly and deliver boost sooner. This results in improved throttle response, increased low‑end torque, and a more responsive driving experience. For turbocharged diesel engines, consistent and unrestricted airflow is essential for maintaining the correct air‑to‑fuel ratio, which directly influences combustion efficiency, power output, and emissions compliance.
The reinforced construction ensures that the hose maintains its shape even under high vacuum, preventing the collapse that can cause hesitation, surging, or stalling. The improved airflow also helps keep exhaust gas temperatures in check, reducing thermal stress on the turbocharger and extending its lifespan. For fleet operators, a genuine intake hose reduces unscheduled repairs, improves fuel economy, and enhances overall vehicle reliability. By investing in the WG9725191432 2, you ensure that your engine receives the vital air it needs to deliver peak performance, mile after mile.
Installing the WG9725191432 2 Air Intake Hose is a simple and quick procedure. Start by disconnecting the vehicle’s battery and relieving any stored pressure in the intake system. Loosen the hose clamps at both ends and carefully remove the old hose, taking note of its orientation and any alignment marks. Thoroughly clean the filter housing outlet and the turbocharger inlet flange to remove any dirt, old sealant, or debris.
Slide the new hose into position, ensuring it follows the original routing without any kinks, sharp bends, or twisting. Secure the hose with the original clamps or new worm‑drive clamps, tightening them to the recommended torque (typically 3‑5 Nm). Avoid overtightening, as this can damage the hose or cause leaks. Reconnect the battery and start the engine, checking for any air leaks around the connections. Periodically inspect the hose for signs of cracking, swelling, or soft spots, and replace it if any degradation is noted. With proper installation and regular checks, the WG9725191432 2 will deliver reliable service for many years.
Pro Tip: When replacing the intake hose, it is highly recommended to also inspect and, if necessary, replace the air filter element. A clean filter reduces the load on the hose and ensures optimal engine breathing. The WG9725191432 2 is designed to work best with a well‑maintained intake system.
Genuine HOWO components are engineered to the highest standards, and the WG9725191432 2 Air Intake Hose is no exception. Aftermarket hoses often use inferior rubber compounds, lack adequate reinforcement, or have inaccurate dimensions, leading to premature cracking, collapse, or poor fitment. HOWO’s hose is manufactured using the same materials and processes as the original equipment, guaranteeing a perfect fit, reliable performance, and long service life.
By choosing the WG9725191432 2, you benefit from HOWO’s rigorous testing, including thermal ageing, ozone resistance, and burst pressure 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 WG9725191432 2?
A: It is designed for HOWO T7H and A7 trucks with MC11/MC13 engines, as well as many Sinotruk models with the same air intake system.
Q: What are the symptoms of a faulty intake hose?
A: Reduced engine power, sluggish acceleration, excessive black smoke, a whooshing sound from the engine bay, or visible cracks/swelling on the hose itself are common indicators.
Q: Does the hose come with clamps?
A: The WG9725191432 2 is supplied as the hose only. We recommend using new, high‑quality clamps for a secure installation – they are available separately.
Q: How do I verify this is the correct part?
A: Check the OEM number printed on your existing hose. If it matches WG9725191432 2, this is the exact replacement. You may also consult your vehicle’s parts manual for additional confirmation.
Order your WG9725191432 2 Air Intake Hose today! Explore our complete selection of genuine HOWO and Sinotruk air induction components at Howo/Sitrak truck parts and ensure your engine breathes freely and efficiently.
The WG9725191432 2 Air Intake Hose from HOWO is a testament to precision engineering and uncompromising quality. By choosing this genuine component, you ensure that your engine receives a clean, uninterrupted airflow, delivering maximum power, fuel efficiency, and reliability. Whether you are a professional mechanic or a fleet manager, this intake hose offers the durability and exact fit required for modern heavy‑duty trucks. Trust HOWO – the benchmark for excellence in heavy‑duty truck components – and experience the difference that genuine quality makes.
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