Product Introduction

• Structure: A precision-machined valve made from high-temperature, high-strength alloy steel, with a polished stem and a hardened valve face for wear resistance. It features a tapered stem tip for precise engagement with the valve tappet and a large, flat head to maximize airflow.

• Performance: Opens and closes at precise intervals to regulate the intake of air into the cylinder, ensuring optimal combustion efficiency. The heat-resistant alloy construction withstands extreme temperatures and pressures, while the polished stem minimizes friction and wear in the valve guide.

Core Function

1. Airflow Control: Opens to allow a precise amount of air into the combustion chamber during the intake stroke, and closes to seal the chamber during compression and combustion.

2. Heat Resistance: The high-alloy material withstands the extreme temperatures of the combustion process, preventing deformation and ensuring long service life.

Intake Valve 330-1007011D Yuchai – Premium Engine Valve for Heavy-Duty Performance

Every combustion cycle begins with a single breath. The Intake Valve 330-1007011D Yuchai is engineered to deliver that breath with precision — controlling airflow into the combustion chamber under extreme thermal and mechanical stress. Built to OEM specifications for Yuchai YC6J and YC6L series diesel engines, this intake valve ensures reliable sealing, optimal volumetric efficiency, and extended service life across millions of duty cycles. METTLEAD Truck Parts supplies this critical engine component direct from quality-certified production lines in China, giving procurement managers access to genuine-grade quality at factory-direct pricing.

Why This Intake Valve Matters to Your Engine

The intake valve is the gatekeeper of your engine’s breathing system. When it opens, fresh air rushes into the cylinder; when it closes, it must seal completely to withstand combustion pressures exceeding 150 bar. The Intake Valve 330-1007011D Yuchai performs this task thousands of times per minute without complaint — and its precision engineering makes the difference between an engine that thrives and one that struggles.

Key Functions and Benefits

• Precision Air Metering: The valve’s optimized profile and seat angle ensure maximum air charge enters the combustion chamber, directly supporting fuel efficiency and power output.
• Superior Heat Resistance: Manufactured from martensitic heat-resistant steel alloy, this intake valve withstands sustained operating temperatures up to 400°C without warping or micro-cracking.
• Extended Service Life: Chrome-plated valve stem and induction-hardened tip resist wear from continuous reciprocating motion against the valve guide, delivering 300,000+ km of reliable operation under normal service conditions.
• Perfect Sealing Geometry: The 45° precision-ground sealing face achieves gas-tight closure, preventing blow-by and maintaining cylinder compression ratios at factory specifications.
• Drop-In OEM Compatibility: Dimensional accuracy within ±0.01mm tolerance ensures direct installation without machining or modification — reducing workshop downtime to minutes, not hours.
• Corrosion-Resistant Finish: Surface treatments protect against oxidation caused by combustion byproducts and condensation during cold starts.

Technical Specifications

Application Scenarios — Where This Valve Works Hardest

The Intake Valve 330-1007011D Yuchai serves as the primary air-admission component in Yuchai YC6 series diesel engines — a powertrain family that dominates medium and heavy-duty commercial vehicle applications across Asia, Africa, and South America. Much like the connecting rod 3698310 bridges piston and crankshaft in Cummins ISG/QSG/F-series engines (converting the piston’s reciprocating force into the crankshaft’s rotational power for Foton Auman heavy trucks), this intake valve sits at an equally critical junction — bridging the atmospheric air supply and the combustion event itself.

You will find this intake valve hard at work inside:

• Long-Haul Logistics Trucks: Yuchai-powered DONGFENG Tianlong, FOTON Auman, and FAW J6 tractors covering 200,000+ km annually on trunk routes.
• Construction and Mining Vehicles: Dump trucks and mixers operating under constant high-load, high-RPM conditions where valve durability is non-negotiable.
• Public Transit Buses: City and intercity coaches running Yuchai YC6L natural gas or diesel variants with frequent stop-start thermal cycling.
• Power Generation Sets: Stationary Yuchai gensets requiring intake valves that maintain seal integrity over thousands of continuous running hours.

OEM/ODM Capability

METTLEAD Truck Parts doesn’t just supply parts — we adapt to your business model:

• White-Label Packaging: Your brand, your identity. We produce the Intake Valve 330-1007011D Yuchai under your private label with custom box design, holographic stickers, and barcode/QR integration.
• Custom Packaging Configurations: Bulk packs for workshop distribution, individual retail-ready blister packs, or mixed-SKU engine overhaul kits — all configurable to order.
• Strict Quality Control: Every batch undergoes dimensional inspection (CMM verified), hardness testing, and surface finish examination before shipment. Certificates of conformity provided on request.
• MOQ Flexibility: From sample orders of 10 pieces to container-load quantities of 50,000+ units, our production lines scale to your procurement timeline.

Explore our full range of Yuchai Engine Parts to build complete overhaul kits from a single trusted source.

Customer Case Study — Intake Valve 330-1007011D Yuchai in the Field

In Q1 2024, a fleet maintenance company managing 120+ Yuchai-powered DONGFENG trucks in West Africa approached METTLEAD with recurring valve failure issues. Their previous aftermarket intake valves were lasting barely 80,000 km before showing seat recession and stem wear — causing compression loss, increased fuel consumption, and unscheduled downtime costing their operation approximately $1,200 per truck per incident.

After switching to our Intake Valve 330-1007011D Yuchai, the results spoke clearly:

• Average valve service life extended to 320,000 km — a 4× improvement.
• Fuel consumption on affected vehicles reduced by 3.8% due to restored compression.
• Unscheduled engine-related downtime dropped by 62% in the first 6 months.
• The client now orders 2,400 intake valves quarterly under a white-label agreement with their own brand packaging.

“We stopped gambling on cheap valves. METTLEAD’s 330-1007011D Yuchai intake valve gave our Yuchai engines the reliability our drivers and customers demand.” — Procurement Director, West Africa Fleet Services

Frequently Asked Questions — Intake Valve 330-1007011D Yuchai

What engines does the Intake Valve 330-1007011D Yuchai fit?

This intake valve is designed specifically for Yuchai YC6J, YC6L, and YC6MK series diesel engines. These powertrains are commonly installed in DONGFENG, FAW, FOTON, and various Chinese-brand commercial vehicles. Always cross-reference the part number 330-1007011D with your engine’s parts manual for confirmation.

How long does the Intake Valve 330-1007011D Yuchai typically last?

Under normal operating conditions with clean air filtration and proper valve lash adjustment, this intake valve delivers reliable service for 300,000 to 400,000 km. Severe-duty applications (mining, constant full-load) may reduce this interval, so inspection at each major service is recommended.

What are the signs that the Intake Valve 330-1007011D needs replacement?

Watch for these symptoms: increased fuel consumption without other explanation, loss of power under load, rough idling, audible tapping from the valve train, and blue/white exhaust smoke at startup. A compression test confirming low values on specific cylinders often points directly to intake valve seat recession or stem seal degradation.

Is the Intake Valve 330-1007011D Yuchai identical to the OEM original?

Yes. This intake valve is manufactured to OEM dimensional and material specifications — including the same 4Cr9Si2 martensitic steel composition, chrome stem plating, and 45° seat angle. It serves as a direct drop-in replacement requiring no additional machining.

Should I replace intake and exhaust valves at the same time?

Best practice says yes. When performing a cylinder head overhaul, replacing the full valve set (intake and exhaust) along with valve stem seals ensures uniform compression across all cylinders and avoids revisiting the same labor-intensive work within a short interval.

Can I order the Intake Valve 330-1007011D Yuchai in small quantities for testing?

Absolutely. METTLEAD supports sample orders starting from 10 pieces so you can bench-test fitment, validate dimensional accuracy, and assess material quality before committing to bulk procurement.

Ready to Secure Your Supply of Intake Valve 330-1007011D Yuchai?

Your engines are only as reliable as the components inside them. The Intake Valve 330-1007011D Yuchai stands ready to deliver — with factory-direct pricing, strict quality control, and flexible logistics tailored to your timeline.

Your next step takes 60 seconds:

1. Tell us your required quantity and delivery destination.
2. Receive a detailed quotation within 24 hours — including FOB/CIF pricing and lead time.
3. Approve, and we ship. Simple as that.

Contact METTLEAD Now — Request Your Intake Valve 330-1007011D Yuchai Quote

We also welcome factory visits to our production and warehousing facilities in China. Come see the quality control process firsthand — from raw material inspection to final packaging.

Browse more engine components in our Yuchai Engine Parts Catalog and consolidate your order for better pricing.