Product Introduction

• Structure: Made of durable, oil-resistant black rubber with a reinforced ribbed (corrugated) design. It features integrated mounting flanges at both ends for a secure, airtight connection.

• Performance: The flexible corrugated design allows for movement between engine components while maintaining an airtight seal. It protects the air intake system from dust, dirt, and water, ensuring clean, efficient airflow to the engine.

• Design: Manufactured to original equipment specifications, ensuring a precise fit with Howo truck engines and compatibility with factory mounting hardware.

Core Function

1. Airflow Delivery: Transports filtered air from the air filter to the engine’s intake system.

2. Flexibility: Absorbs engine vibrations and thermal expansion to prevent damage to rigid components.

3. Contamination Protection: Seals the intake system to prevent dust, dirt, and moisture from entering the engine.

Air Inlet Bellows WG9719190015 for Sinotruk HOWO Heavy-Duty Trucks

When your Sinotruk HOWO truck demands a reliable air intake connection, the Air Inlet Bellows WG9719190015 stands as the critical link between your engine’s turbocharger and intake manifold. This OEM-spec flexible coupling absorbs engine vibrations, compensates for thermal expansion, and ensures an airtight seal — so your heavy-duty truck breathes efficiently mile after mile. Manufactured to factory-original tolerances, this air inlet bellows delivers the durability and precision that fleet operators and workshop professionals trust worldwide.

Why This Air Inlet Bellows Matters for Your HOWO Truck

Think of the air inlet bellows as your engine’s flexible joint — it connects rigid intake components while absorbing constant movement and heat cycles. Without a properly functioning bellows, unfiltered air can leak into the system, reducing turbo efficiency, increasing fuel consumption, and ultimately shortening engine life. Here’s what this specific part brings to the table:

• Vibration Absorption: Effectively isolates engine vibrations from the rigid intake piping, preventing fatigue cracks and premature component failure.
• Thermal Compensation: Engineered to flex with temperature fluctuations, maintaining a secure seal from cold starts through full operating temperature.
• Airtight Performance: Precision-molded construction ensures zero air leakage at boost pressures, preserving turbocharger efficiency and power output.
• Chemical Resistance: High-grade rubber compound resists degradation from oil mist, fuel vapors, and environmental contaminants.
• Extended Service Life: Reinforced corrugation design distributes stress evenly, significantly outlasting generic aftermarket alternatives.

In other words, replacing a worn or cracked air inlet bellows with this OEM-quality WG9719190015 part restores your engine’s breathing capacity and protects downstream components from costly damage.

Technical Specifications — Air Inlet Bellows WG9719190015

Application — Vehicle Fitment Guide

The Air Inlet Bellows WG9719190015 is specifically designed for the Sinotruk HOWO heavy-duty truck platform. Whether your fleet operates in long-haul logistics, mining transport, or construction haulage, this part fits seamlessly into the following common scenarios:

• Sinotruk HOWO A7 Tractor Heads — Commonly used in intercity freight corridors across Africa, Southeast Asia, and the Middle East.
• HOWO 6×4 Dump Trucks — Ideal for mining and quarry operations where dust ingestion and vibration stress are severe.
• HOWO 8×4 Cargo Trucks — Supporting heavy payload configurations that demand maximum engine airflow efficiency.
• HOWO Mixer Trucks — Continuous-operation vehicles that require reliable intake sealing under constant engine load.

If you’re managing a mixed Sinotruk fleet, you can browse our full range of Sinotruk HOWO Truck Parts to source everything from engine components to cabin accessories in one place. Additionally, explore our dedicated Truck Cab Parts category and our comprehensive Sinotruk Truck Parts catalog for complete fleet maintenance support.

OEM/ODM Capability & Custom Packaging

At Mettlead, we understand that different markets have different branding needs. That’s exactly why we offer flexible manufacturing and packaging solutions tailored to your business:

• White-Label Supply: Receive the Air Inlet Bellows WG9719190015 in neutral packaging, ready for your own branding and distribution.
• Custom Packaging: We design and print your company logo, part numbers, and product information directly on the packaging — helping you build brand recognition with your end customers.
• Strict Quality Control: Every single bellows undergoes dimensional inspection, material testing, and pressure verification before shipping. We don’t let defective parts leave the warehouse.
• Bulk Order Flexibility: Whether you need 50 pieces or 5,000, our factory-direct model scales production to meet your purchasing cycles.

This combination of OEM-quality manufacturing and tailored packaging solutions makes Mettlead a preferred long-term supply partner for distributors and wholesalers across 60+ countries.

Customer Case Study — Air Inlet Bellows WG9719190015 in Action

A fleet management company based in Nigeria was experiencing recurring turbo efficiency losses across their 45-unit HOWO A7 tractor fleet. After inspection, their maintenance team discovered that deteriorated air inlet bellows were allowing unfiltered air to bypass the intake system — reducing power output by an estimated 8-12% and increasing fuel costs noticeably.

They reached out to Mettlead for a bulk order of Air Inlet Bellows WG9719190015 units. Within 7 working days, we shipped 120 pieces (including safety stock) with custom-labeled packaging matching their internal inventory system. Following installation, the fleet reported restored turbo boost levels, measurably improved fuel economy, and zero repeat failures over the following 12-month service interval.

This is the kind of reliable, cost-effective parts supply that keeps fleets running and procurement managers confident in their sourcing decisions.

Frequently Asked Questions — Air Inlet Bellows WG9719190015

What are the signs that my Air Inlet Bellows WG9719190015 needs replacement?

Look for visible cracks, hardening, or deformation in the rubber. You may also notice a hissing sound near the intake piping, reduced boost pressure, increased black smoke, or higher fuel consumption. These symptoms indicate the bellows has lost its sealing integrity and should be replaced promptly.

Is this Air Inlet Bellows an exact OEM replacement for Sinotruk HOWO?

Yes. The WG9719190015 air inlet bellows is manufactured to match OEM dimensions, material specifications, and fitment exactly. It installs as a direct bolt-on replacement without any modifications required.

How long does the Air Inlet Bellows WG9719190015 typically last?

Under normal operating conditions, this air inlet bellows can last 80,000–120,000 km or more. However, in extremely dusty or high-temperature environments (mining, desert operations), we recommend inspecting it at every 40,000 km service interval.

Can I use this bellows on other Sinotruk models besides HOWO?

The WG9719190015 is specifically designed for the HOWO platform. While some SITRAK or older Steyr-series trucks may share similar components, we strongly recommend confirming the part number against your vehicle’s parts catalog. Feel free to contact us with your VIN or chassis number, and our team will verify fitment for you.

What material is the Air Inlet Bellows WG9719190015 made from?

It’s constructed from high-grade heat-resistant rubber reinforced with embedded steel wire for structural rigidity. This composite design ensures flexibility under vibration while maintaining shape retention under boost pressure and high temperatures.

Do you offer a minimum order quantity for this part?

We accommodate both small trial orders and large bulk purchases. There’s no rigid MOQ for the Air Inlet Bellows WG9719190015 — we work with your procurement schedule and volume needs. Larger orders naturally benefit from better unit pricing.

Ready to Source Your Air Inlet Bellows WG9719190015?

Stop letting worn intake bellows steal your fleet’s performance and fuel budget. Mettlead delivers factory-direct pricing, strict quality assurance, and fast turnaround — everything a procurement manager needs to make a confident purchasing decision.

Get your competitive quote today. Simply contact us with your required quantity, preferred shipping method, and any custom packaging needs. Our team typically responds within 12 hours with a detailed quotation — including FOB/CIF pricing, lead times, and available payment terms.

We also welcome factory visits and video inspections for new partners. Let’s build a supply relationship that keeps your trucks running and your costs under control.