Product Introduction
 Structure: Forged from high-strength alloy steel, with precision-machined gear teeth and a hollow, lightweight design with ventilation holes  for heat dissipation.

• Performance: Heat-treated for high hardness and wear resistance, with precision-ground teeth for smooth meshing and minimal noise. The central bore features a precision fit for the crankshaft front end.

Core Function

• Transmits rotational power from the crankshaft to the engine’s timing gear train, driving components such as the camshaft, oil pump, and fuel injection pump.

• Maintains precise timing between the crankshaft and valve train, ensuring efficient engine operation.

• The ventilation holes reduce rotational inertia and improve heat dissipation, enhancing durability under high-load conditions.

Crankshaft Front Gear 200-02115-0278 SINOTRUK – Premium OEM Engine Timing Gear

When your SINOTRUK engine demands precise valve timing and flawless power delivery, the Crankshaft Front Gear 200-02115-0278 stands as the heartbeat of your gear train system. Engineered to OEM specifications, this crankshaft front gear synchronizes your camshaft timing with micron-level accuracy, ensuring every combustion cycle fires exactly when it should. Sourced directly from our factory supply chain, it delivers the reliability your fleet needs — without the inflated middleman pricing.

At JINAN METTLEAD AUTO SALES CO.LTD., we’ve supplied thousands of SINOTRUK engine components to fleet operators, distributors, and repair workshops across 60+ countries. This isn’t just a gear — it’s your engine’s timing guarantee.

Key Features & Benefits of Crankshaft Front Gear 200-02115-0278

• Precision-Machined Tooth Profile: Each tooth is cut to exact OEM tolerances, minimizing backlash and ensuring whisper-quiet meshing with the idler gear and camshaft gear assembly.
• High-Grade Alloy Steel Construction: Manufactured from carburized alloy steel (20CrMnTi) with surface hardness of HRC 58-62, delivering exceptional wear resistance under extreme thermal cycling.
• Perfect Timing Synchronization: Maintains crankshaft-to-camshaft timing accuracy within ±0.05mm, preventing valve-piston interference and protecting your engine investment.
• Direct OEM Replacement: Drops into your SINOTRUK engine without modification — same bolt pattern, same interference fit, same timing marks as the original factory part.
• Extended Service Life: Shot-peened tooth roots resist fatigue cracking, delivering 300,000+ km of reliable service under normal operating conditions.
• Factory-Direct Pricing: By eliminating distribution layers, we pass 20-35% cost savings directly to your procurement budget.

Application & Fitment – Where This Crankshaft Front Gear Lives

Installation Position

The Crankshaft Front Gear 200-02115-0278 mounts directly onto the front nose of the crankshaft, seated behind the front oil seal and timing cover. It meshes with the idler gear assembly in the engine’s front gear train housing, driving the camshaft gear, oil pump gear, and air compressor gear in synchronized rotation. During replacement, technicians access it by removing the front crankshaft pulley, vibration damper, and timing gear cover.

Compatible Vehicle Models

• SINOTRUK HOWO A7 – Equipped with MC11/MC13 engine series
• SINOTRUK SITRAK C7H / G7 – MC11.44-50 / MC13.54-60 powertrains
• SINOTRUK HOWO T7H – MC11.36-40 engine configurations
• SINOTRUK HOWO TX / TH – Next-generation MC-series platforms
• SINOTRUK Mining Trucks – Heavy-duty MC13 engine applications

Note: Always verify your engine serial number and existing part marking against OEM number 200-02115-0278 before ordering. Our technical team can assist with cross-referencing.

Technical Specifications – Crankshaft Front Gear 200-02115-0278 SINOTRUK

OEM/ODM Capability & Custom Packaging

Whether you’re a regional distributor building your own brand or a fleet operator standardizing your parts inventory, we adapt to your business model:

• White-Label Packaging: Your brand, your logo, your part numbers printed on every box. Minimum order quantities start as low as 50 pieces for custom packaging runs.
• Custom Kitting: We can bundle the crankshaft front gear with related timing components (idler gear, camshaft gear, thrust washers) into ready-to-install kits under your brand.
• Strict Quality Control: Every gear undergoes CMM dimensional inspection, magnetic particle testing for subsurface cracks, and hardness verification before shipment. Rejection rate maintained below 0.3%.
• Flexible Order Volumes: From sample orders (1-5 pcs) for testing to container-load quantities for established distributors — we scale with your demand.

Explore our full range of SINOTRUK engine timing and gear train components in our SINOTRUK HOWO Engine Parts catalog.

Frequently Asked Questions – Crankshaft Front Gear 200-02115-0278

Q1: What are the symptoms of a worn crankshaft front gear?

A failing crankshaft front gear typically announces itself through abnormal rattling or whining noise from the front timing cover area, especially at idle. As tooth wear progresses, you may notice slight timing drift causing rough running, increased fuel consumption, or in severe cases, diagnostic fault codes related to camshaft/crankshaft position sensor correlation. If tooth chipping occurs, metal debris contaminates the oil system — so check your oil filter for metallic particles during routine service.

Q2: Is this crankshaft front gear compatible with the older SINOTRUK WD615 engine?

No. Part number 200-02115-0278 is specifically designed for the MC11/MC13 engine platform (MAN-technology based). The older WD615/WD618 Steyr-technology engines use a different gear train configuration with different tooth counts and module sizes. Contact our team if you need the correct WD615 crankshaft gear — we stock those as well.

Q3: Should I replace the idler gear and camshaft gear at the same time?

Best practice says yes. Gear train components wear together as a matched set. Installing a new crankshaft gear against worn mating gears creates uneven load distribution, accelerates wear on the new gear, and may introduce noise. We recommend replacing the complete front gear train assembly during major overhauls, especially beyond 500,000 km.

Q4: How do I ensure correct timing alignment during installation?

The crankshaft front gear features an engraved timing dot that must align with the corresponding mark on the idler gear during assembly. Set the engine to TDC (Top Dead Center) on cylinder #1 compression stroke before removing the old gear. Use a hydraulic press or thermal expansion method (heating the gear to 120°C) for interference-fit installation — never hammer it on, as impact force can micro-crack the hardened tooth surfaces.

Q5: What is the typical lead time for bulk orders?

Standard stock items ship within 3-5 business days. For bulk orders exceeding 200 pieces or custom-packaged orders, production and packaging typically require 10-15 business days. We maintain safety stock of high-demand SINOTRUK engine parts to minimize your wait time.

Ready to Secure Your Supply? Let’s Talk.

Your fleet doesn’t wait — and neither should your parts supply chain. Whether you need 5 pieces for an urgent repair or 5,000 for your annual procurement plan, our team responds to inquiries within 12 hours with confirmed pricing, stock availability, and shipping options to your port.

Get your competitive quote on Crankshaft Front Gear 200-02115-0278 today.

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JINAN METTLEAD AUTO SALES CO.LTD. — Your factory-direct source for SINOTRUK, SITRAK, HOWO, SHACMAN, FAW, WEICHAI, DONGFENG & FOTON truck parts worldwide.