Product Introduction

• Structure: A precision-machined spur gear made from high-strength alloy steel, with a hardened tooth surface for maximum wear resistance. It features a splined center bore for secure mounting, four lightening holes to reduce weight and inertia, and a locating pin hole for precise timing alignment.

• Performance: Transmits rotational torque smoothly and efficiently, ensuring the camshaft operates in perfect synchronization with the crankshaft. The hardened teeth and robust construction withstand high loads and provide long service life even in harsh environments.

Core Function

1. Power Transmission: Transfers mechanical power from the crankshaft (via an idler gear) to the camshaft, driving the valve train.

2. Timing Synchronization: Maintains precise synchronization between the crankshaft and camshaft, ensuring accurate valve timing for optimal engine performance, fuel efficiency, and emissions control.

3. Load Bearing: Withstands high torque loads and dynamic forces, ensuring reliable operation of the valve train and protecting critical engine components from wear.

Camshaft Timing Gear 6105Q-1006021 YUCHAI – Precision-Engineered for Peak Engine Performance

Every revolution of your engine depends on flawless valve timing. The Camshaft Timing Gear 6105Q-1006021 for YUCHAI engines delivers the exact synchronization your powertrain demands — tooth after tooth, cycle after cycle. Manufactured to OEM specifications and backed by METTLEAD Truck Parts’ rigorous quality control, this timing gear eliminates premature wear, reduces valve train noise, and keeps your fleet running on schedule rather than sitting in the repair bay

Why This Camshaft Timing Gear Outperforms the Alternatives

A camshaft timing gear does more than spin — it orchestrates the precise opening and closing of every intake and exhaust valve in the combustion sequence. When tolerances slip, fuel efficiency drops, emissions rise, and catastrophic valve-piston contact becomes a real threat. Here is what makes the 6105Q-1006021 YUCHAI Camshaft Timing Gear the procurement-smart choice:

• OEM-Grade Tooth Profile — CNC-machined gear teeth ensure consistent meshing with the crankshaft timing gear, maintaining valve timing accuracy within ±0.5° across the full RPM range.
• High-Fatigue Alloy Steel — Forged from 20CrMnTi carburized steel with a surface hardness of HRC 58-62, this gear resists pitting and spalling even under sustained heavy-duty loads.
• Noise-Dampening Precision — Tight manufacturing tolerances (ISO Grade 6) reduce gear lash and minimize the characteristic “gear whine” that signals misalignment or wear.
• Extended Service Life — Heat-treated core with carburized surface layer delivers 30,000+ operating hours before replacement is needed under normal service conditions.
• Direct Drop-In Fitment — Matches all OEM mounting dimensions, bolt patterns, and keyway specifications for YUCHAI 6105Q series engines with zero modifications required.
• Factory-Direct Pricing — By sourcing directly from METTLEAD’s quality-controlled production line, you bypass distributor markups by 20-35% without sacrificing quality.

Technical Specifications – Camshaft Timing Gear 6105Q-1006021 YUCHAI

Application Scenarios – Where This Timing Gear Works Hardest

The Camshaft Timing Gear 6105Q-1006021 serves as the timing backbone in YUCHAI-powered vehicles and machinery operating across the most demanding conditions on earth:

• Medium-Duty Trucks — DONGFENG and FOTON chassis equipped with YUCHAI YC6105Q engines for regional logistics and construction material transport.
• Public Transit Buses — City and intercity buses running YUCHAI 6108 series diesels where consistent timing prevents mid-route breakdowns and passenger delays.
• Construction Equipment — Wheel loaders, compactors, and concrete mixers using YUCHAI power units in dusty, high-vibration environments where gear integrity is non-negotiable.
• Agricultural Machinery — Harvesters and tractors running extended daily hours during planting and harvest seasons demand timing components that refuse to fatigue.
• Generator Sets — Stationary YUCHAI gensets in mining camps and remote facilities where unplanned downtime costs thousands per hour.

In every scenario, the timing gear’s job remains the same: maintain valve synchronization under thermal stress, vibration, and continuous load — and this part does it reliably, silently, and for the long haul.

OEM/ODM Capability – Your Brand, Our Precision

METTLEAD Truck Parts does not just supply parts — we build partnerships. Our manufacturing flexibility means your brand gets the exact product presentation your market demands:

• White-Label Packaging — Neutral boxes ready for your own branding stickers or labels. Ideal for distributors testing new markets without heavy packaging investment.
• Custom Packaging — Full branded packaging with your company logo, part number system, barcodes, and multilingual instructions printed to your specifications.
• Bulk OEM Supply — Large-volume orders with dedicated production runs, batch traceability codes, and certificates of conformance for each shipment.
• Quality Documentation — Material certificates, hardness test reports, and dimensional inspection records available on request for every batch.

Minimum order quantities are flexible. Whether you need 50 pieces for a trial order or 5,000 for quarterly stock replenishment, our production line scales to your timeline.

Client Case Study – How a West African Fleet Operator Reduced Downtime by 40%

A fleet management company operating 120+ YUCHAI-powered trucks in Nigeria was experiencing recurring camshaft timing gear failures every 8,000–10,000 hours. The aftermarket parts they sourced locally showed premature tooth wear and occasional fracturing, leading to unplanned engine teardowns costing $2,800+ per incident.

After switching to the Camshaft Timing Gear 6105Q-1006021 supplied by METTLEAD, their maintenance team documented the following results over 18 months:

• Zero timing gear failures across all 120 vehicles
• Average gear service life extended beyond 25,000 hours (and still counting)
• Valve train noise complaints from drivers dropped by 60%
• Annual unplanned downtime reduced by 40%, saving an estimated $87,000 in lost productivity
• Procurement cost per unit decreased 28% compared to their previous local supplier

“We were skeptical about sourcing timing gears directly from China, but METTLEAD’s quality control speaks for itself. The parts arrive well-packaged, the dimensions are spot-on, and our engines simply run longer between services now.” — Head of Procurement, Lagos-based fleet operator.

Frequently Asked Questions – Camshaft Timing Gear 6105Q-1006021 YUCHAI

What symptoms indicate a worn camshaft timing gear needs replacement?

Listen for increased gear train noise at idle, especially a metallic rattling or whining sound from the timing cover area. Other indicators include rough idling, loss of power under load, and — in severe cases — misfiring caused by valve timing drift. If a borescope inspection reveals visible tooth wear, pitting, or chipping on the gear surface, immediate replacement prevents costly valve-piston contact damage.

Is this Camshaft Timing Gear 6105Q-1006021 an exact OEM replacement?

Yes. This gear is manufactured to match all original YUCHAI specifications including tooth count (46T), module (3.5mm), bore dimensions, keyway profile, and material hardness. It installs without any modifications, machining, or adapter components. Your technicians will find it indistinguishable from the factory-original part during installation.

What is the recommended replacement interval for YUCHAI camshaft timing gears?

Under normal operating conditions with clean oil and proper maintenance, YUCHAI recommends inspecting timing gears during major overhauls (typically every 20,000–30,000 engine hours). However, severe-duty applications with frequent cold starts, contaminated oil, or sustained high-RPM operation may require earlier inspection. Always replace the gear if backlash exceeds 0.15mm or if any tooth surface damage is visible.

Should I replace the crankshaft timing gear at the same time?

Best practice is yes. Timing gears work as a matched pair — a new camshaft gear meshing with a worn crankshaft gear inherits the existing wear pattern and accelerates degradation of both components. Replacing both simultaneously ensures optimal meshing, minimizes noise, and maximizes the service interval before the next replacement is needed. METTLEAD supplies both components.

What quality control does this timing gear undergo before shipping?

Every Camshaft Timing Gear 6105Q-1006021 passes through a multi-stage inspection process: raw material spectral analysis, post-forging dimensional verification, surface hardness testing (Rockwell), magnetic particle inspection for micro-cracks, gear profile measurement on coordinate measuring machines, and final visual inspection. Batch traceability ensures any quality concern can be traced back to specific production parameters.

Can this timing gear handle engines with higher-than-stock power output?

The 20CrMnTi carburized alloy steel and HRC 58-62 surface hardness provide a significant safety margin above stock loading. For engines tuned up to 15-20% above factory power output, this gear performs reliably without modification. Beyond that threshold, consult with our engineering team about potential upgraded specifications for racing or extreme-duty applications.

Ready to Secure Your Supply of Genuine-Quality Camshaft Timing Gears?

Your engines deserve timing components that perform to specification, ship on time, and cost less than inflated distributor pricing. METTLEAD Truck Parts delivers all three — backed by strict quality control, factory-direct economics, and a team that understands your procurement deadlines are not flexible.

Get your competitive quote today:

• Specify your required quantity and delivery destination
• Receive a detailed quotation within 24 hours
• Flexible payment terms available for verified buyers
• Factory visits welcome — see our quality processes firsthand

👉 Contact Us Now to Request a Quote — our parts specialists are standing by to answer your technical questions and lock in your best pricing.

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