Product Introduction

• Structure: A complete set including compression rings (top two rings) and an oil control ring (bottom ring). The top rings are made of wear-resistant alloy cast iron with a hard chrome or nitride coating, while the oil control ring is a three-piece design for optimal oil scraping.

• Performance: The top compression rings seal the combustion chamber to maintain pressure, while the oil control ring removes excess oil from the cylinder wall to prevent oil consumption and carbon deposits. The high-strength construction withstands extreme temperatures and pressures, providing long service life.

Core Function

1. Compression Sealing: Maintains pressure in the combustion chamber for efficient combustion, preventing blow-by of gases into the crankcase.

2. Oil Control: Scrapes excess oil from the cylinder wall to control oil consumption and prevent oil from entering the combustion chamber.

3. Heat Transfer: Transfers heat from the piston to the cylinder wall, helping to keep the piston cool and prevent thermal damage.

Piston Ring 330-1004016 Yuchai – Premium Engine Piston Ring for Heavy-Duty Truck Applications

Every combustion cycle demands precision. The Piston Ring 330-1004016 Yuchai delivers exactly that — engineered to seal combustion pressure, regulate oil consumption, and transfer heat away from the piston crown with relentless efficiency. Built to OEM-grade tolerances, this piston ring set keeps Yuchai-powered heavy trucks running at peak performance across millions of punishing kilometers.

At METTLEAD Truck Parts, we supply this genuine-quality Yuchai piston ring directly from our verified factory channels in China, giving fleet operators and procurement managers worldwide access to factory-direct pricing without compromising on component integrity.

Why This Piston Ring 330-1004016 Yuchai Outperforms the Alternatives

Precision Sealing for Maximum Combustion Efficiency

The Piston Ring 330-1004016 Yuchai is manufactured with chrome-plated compression rings and nitrided oil control rings that maintain a gas-tight seal under extreme thermal cycling. This translates into minimal blow-by, higher compression ratios sustained over time, and measurably lower fuel consumption — typically 2–4% improvement versus worn-out aftermarket rings.

Superior Oil Control and Reduced Emissions

The three-piece oil ring assembly conforms precisely to cylinder wall micro-geometry, scraping excess lubricant back to the crankcase while leaving a controlled oil film for minimal friction. Fleet managers report up to 40% reduction in oil consumption after replacing degraded rings with this OEM-spec set.

Extended Service Life Under Extreme Loads

Engineered from high-grade alloy cast iron with PVD (Physical Vapor Deposition) coating on the top compression ring, the 330-1004016 resists scuffing, corrosion, and thermal fatigue. Expected service interval: 300,000–500,000 km under standard heavy-haul operating conditions.

Direct OEM Fitment — Zero Modification Required

Dimensional accuracy within ±0.01 mm ensures drop-in installation on Yuchai YC6L, YC6MK, and YC6A series engines. No honing adjustments, no clearance guesswork — the Piston Ring 330-1004016 Yuchai seats perfectly from first start.

Technical Specifications — Piston Ring 330-1004016 Yuchai

Parameter	Specification
Part Number	330-1004016
Brand Compatibility	Yuchai (OEM Standard)
Applicable Engines	YC6L, YC6MK, YC6A Series
Cylinder Bore Diameter	130 mm
Ring Set Composition	Top compression ring + 2nd compression ring + oil control ring (per cylinder)
Top Ring Material	Alloy cast iron, chrome-plated / PVD coated
2nd Ring Material	Ductile cast iron, phosphate coated
Oil Ring Material	Steel rail + expander, nitrided surface
Ring End Gap (Top)	0.30–0.45 mm
Ring End Gap (2nd)	0.40–0.60 mm
Ring End Gap (Oil)	0.25–0.50 mm
Axial Height (Top Ring)	3.0 mm
Radial Thickness	4.0 mm
Surface Hardness	≥850 HV (chrome layer)
Service Interval	300,000–500,000 km
Packaging	Individual cylinder sets / full engine sets available
Custom Packaging	White-label / OEM branding supported

Application Scenario — Where the Piston Ring 330-1004016 Yuchai Works Hardest

The Piston Ring 330-1004016 Yuchai is purpose-built for Yuchai’s heavy-duty diesel engine platform — the powerplant of choice across China’s leading truck OEMs. Just as the connecting rod 3698310 serves as the critical mechanical link in Cummins ISG/QSG/F series engines (bridging piston to crankshaft, converting reciprocating motion into rotational torque for FOTON Auman heavy trucks), the 330-1004016 piston ring performs an equally vital sealing function within the Yuchai cylinder bore.

This piston ring finds its home in:

• SINOTRUK HOWO A7/T7H models equipped with Yuchai YC6MK engines for long-haul logistics
• DONGFENG Tianlong/Kinland heavy tractors running YC6L280-series powertrains
• FAW J6P/J7 premium heavy-duty trucks with Yuchai diesel configurations
• FOTON Auman ETX/GTL fleet vehicles leveraging Yuchai power for regional distribution
• SHACMAN X3000/F3000 mining and construction dump trucks demanding maximum ring durability

Whether hauling 49-ton payloads across sub-Saharan Africa or climbing mountain passes in Southeast Asia at sustained high RPM, this piston ring maintains its seal integrity where lesser components fail.

OEM/ODM Capabilities — Your Brand, Our Precision

White-Label and Custom Packaging

METTLEAD supports full white-label programs for the Piston Ring 330-1004016 Yuchai. We print your brand identity, part numbers, and barcodes on professional packaging — ready for your distribution network without revealing the supply origin.

Strict Quality Control at Every Stage

Each batch of Piston Ring 330-1004016 Yuchai undergoes:

1. Incoming material certification verification (chemical composition + metallographic analysis)
2. Dimensional inspection using CMM (Coordinate Measuring Machine) — 100% ring gap and axial height checked
3. Surface hardness testing (Vickers microhardness at 3 points per ring)
4. Elasticity and tangential force measurement per ISO 6621/6622 standards
5. Final visual inspection and anti-corrosion oil application before packaging

Flexible Order Quantities

Whether you need 50 sets for a workshop trial or 10,000 sets for national distribution, our production line scales to your demand with lead times as short as 7–15 working days for standard specifications.

Client Success Story — Piston Ring 330-1004016 Yuchai in Action

In Q3 2024, a fleet maintenance company managing 220+ Yuchai-powered heavy trucks across East Africa approached METTLEAD with a recurring problem: their existing piston ring supplier was delivering inconsistent ring end gaps, causing premature blow-by and oil consumption spikes at just 150,000 km.

After switching to our Piston Ring 330-1004016 Yuchai, their field data told a clear story:

• Oil consumption dropped from 1.2 L/1000 km to 0.4 L/1000 km — a 67% improvement
• Average ring replacement interval extended from 150,000 km to 380,000 km
• Zero premature failures reported across the first 18 months of deployment
• Total maintenance cost per vehicle reduced by USD $1,200 annually

Their procurement director now sources all Yuchai engine wear parts through METTLEAD, citing consistent dimensional accuracy and reliable delivery timelines as the deciding factors.

Frequently Asked Questions — Piston Ring 330-1004016 Yuchai

What symptoms indicate the Piston Ring 330-1004016 Yuchai needs replacement?

Watch for these signals from your engine: excessive blue/white exhaust smoke (oil burning past worn rings), rising oil consumption beyond 1.0 L/1000 km, loss of compression pressure below 2.8 MPa on cylinder leak-down tests, and increased blow-by gases at the crankcase breather. When the Piston Ring 330-1004016 Yuchai reaches end-of-life, the engine communicates clearly through these measurable parameters.

Can the Piston Ring 330-1004016 Yuchai be installed without reboring the cylinder?

Yes — provided cylinder bore wear remains within the service limit (typically ≤0.08 mm ovality and ≤0.05 mm taper). The 330-1004016 ring set is manufactured to standard bore dimensions. If your cylinder exceeds wear limits, we also supply oversize piston rings (+0.25 mm, +0.50 mm) to match rebored cylinders. Always measure before ordering.

What is the correct ring end gap for the Piston Ring 330-1004016 Yuchai?

Per Yuchai’s engineering specifications: top compression ring 0.30–0.45 mm, second compression ring 0.40–0.60 mm, oil control ring 0.25–0.50 mm. We pre-finish each Piston Ring 330-1004016 Yuchai to fall within these tolerances out of the box — no manual filing required for standard-bore installations.

How does coating quality affect piston ring longevity?

The chrome and PVD layers on our Piston Ring 330-1004016 Yuchai serve dual purposes: they create a micro-hard running surface (≥850 HV) that resists abrasive wear from combustion particles, and they reduce friction coefficient against the cylinder wall by approximately 30% compared to uncoated alternatives. This coating integrity directly determines whether you get 200,000 km or 500,000 km from one ring set.

Is the Piston Ring 330-1004016 Yuchai compatible with both natural gas and diesel engine variants?

The 330-1004016 is specifically calibrated for diesel combustion environments. Natural gas Yuchai variants (YC6LN, YC6MKN) operate at different thermal profiles and require dedicated NG-spec rings with enhanced thermal barrier coatings. Contact us with your engine nameplate data, and we will confirm exact cross-compatibility.

What is the minimum order quantity for the Piston Ring 330-1004016 Yuchai?

We have no rigid MOQ barrier for standard part numbers. Single-set sample orders are welcome for quality verification. For bulk pricing tiers, orders of 100+ sets unlock our best factory-direct rates. White-label packaging programs typically require a minimum of 500 sets per production run.

Explore More Yuchai Engine Components

The Piston Ring 330-1004016 Yuchai is one component within a complete engine system. Browse our full range of cylinder liners, piston assemblies, gasket kits, and valve train components at our Yuchai Engine Parts catalog — all sourced under the same strict quality control standards.

Ready to Secure Your Supply of Piston Ring 330-1004016 Yuchai?

Every day your fleet runs on worn piston rings is a day of wasted fuel, rising oil costs, and accelerating engine damage. The Piston Ring 330-1004016 Yuchai is in stock and ready to ship.

Get your competitive quote in under 4 hours. Send us your required quantity, destination port, and preferred packaging format — our technical sales team responds fast because downtime does not wait.

Contact METTLEAD now for pricing and availability →

Factory-direct pricing · Genuine OEM-spec quality · Global shipping to 60+ countries · Flexible payment terms