Product Features

• Structure: Forged from high-strength alloy steel, with precision-machined gear teeth and a lightweight, hollow design featuring 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 has a precision fit for the rear end of the crankshaft.

Core Function

• Transmits rotational power from the crankshaft to the engine’s rear-end components, such as the oil pump and balance shaft, ensuring their synchronized operation.

• Maintains precise timing between the crankshaft and auxiliary systems, supporting stable engine performance.

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

Crankshaft Rear Gear 200-02115-0256 SINOTRUK – OEM Quality, Factory-Direct Pricing

When your SINOTRUK engine demands precision-engineered timing components, the Crankshaft Rear Gear 200-02115-0256 delivers uncompromising performance where it matters most. This OEM-spec gear sits at the heart of your engine’s gear train, ensuring perfect crankshaft-to-camshaft synchronization that keeps your heavy-duty fleet running on schedule — and your maintenance costs under control.

Sourced directly from our factory supply chain at JINAN METTLEAD AUTO SALES CO.LTD., this genuine-equivalent crankshaft rear gear eliminates middleman markups while maintaining the strict quality standards your procurement team requires.

Key Features and Benefits of Crankshaft Rear Gear 200-02115-0256

• Precision Tooth Profile: CNC-machined gear teeth ensure accurate meshing with the camshaft timing gear and idler gear assembly, minimizing backlash and reducing noise under heavy load conditions.
• High-Grade Alloy Steel Construction: Manufactured from carburized and hardened alloy steel (20CrMnTi equivalent), delivering superior wear resistance across 500,000+ km service intervals.
• OEM Dimensional Accuracy: Matches original SINOTRUK specifications to within ±0.01mm tolerance, guaranteeing drop-in fitment without machining or modification.
• Optimized Surface Hardness: Heat-treated to HRC 58-62 on tooth surfaces while maintaining a tough core (HRC 30-42), preventing both surface pitting and catastrophic fracture.
• Corrosion-Resistant Finish: Phosphate-coated surface treatment protects against oxidation during storage and transit to your warehouse.
• Reduced Downtime: Direct replacement design means your mechanics complete the swap in minimal time — getting trucks back on the road faster.

Technical Specifications – Crankshaft Rear Gear 200-02115-0256 SINOTRUK

Application Scenarios – Where This Crankshaft Rear Gear Works

Compatible Vehicle Models

The Crankshaft Rear Gear 200-02115-0256 is engineered for SINOTRUK vehicles equipped with MC11 and MC13 series engines, including:

• SINOTRUK SITRAK C7H – Long-haul tractor units (6×4 configurations)
• SINOTRUK SITRAK G7 – Heavy-duty logistics trucks
• SINOTRUK HOWO T7H – Highway tractor and cargo variants
• SINOTRUK HOWO A7 – Select models with MC-series engine upgrades
• SINOTRUK HOHAN J7 – Premium heavy-duty truck platform

Exact Installation Position

This gear is pressed onto the rear journal of the crankshaft, positioned on the flywheel side of the engine block. It forms a critical link in the rear gear train assembly, directly meshing with the rear idler gear (which in turn drives the camshaft gear, air compressor gear, and PTO gear). During replacement, technicians must remove the flywheel housing and flywheel to access this component. Proper alignment with the keyway and timing marks is essential to maintain correct valve timing.

OEM/ODM Capability – Custom Solutions for Your Market

At JINAN METTLEAD AUTO SALES CO.LTD., we understand that different markets have different requirements. Our flexible manufacturing partnerships allow us to serve your brand strategy:

• White-Label Packaging: Receive the Crankshaft Rear Gear 200-02115-0256 in neutral packaging, ready for your own branding and distribution.
• Custom Packaging: We produce parts with your company logo, part numbers, and market-specific labeling — building your brand identity in your territory.
• Strict Quality Control: Every batch undergoes dimensional inspection, hardness testing, and visual QC before shipment. Inspection reports available upon request.
• Bulk Order Flexibility: Whether you need 10 pieces or 10,000, our supply chain scales to match your demand cycles.
• Factory Visit Welcome: We invite procurement teams to inspect our supply chain firsthand in Jinan, China.

Frequently Asked Questions – Crankshaft Rear Gear 200-02115-0256

What are the signs that a crankshaft rear gear needs replacement?

Listen for abnormal rattling or knocking sounds from the rear of the engine block, especially at idle. Excessive gear backlash causes timing drift, which may trigger fault codes related to camshaft/crankshaft position sensor deviation. Visible tooth wear, pitting, or chipping during scheduled inspections also indicates immediate replacement is needed.

Is this crankshaft rear gear compatible with both MC11 and MC13 engines?

Yes. Part number 200-02115-0256 is specified by SINOTRUK for both the MC11 and MC13 engine platforms, which share the same rear gear train architecture derived from MAN D20/D26 technology.

What happens if the crankshaft rear gear fails during operation?

A failed crankshaft rear gear disrupts the entire rear gear train timing. This can cause loss of air compressor function, incorrect valve timing leading to power loss or engine damage, and potential PTO failure. In severe cases, broken gear teeth can circulate through the oil system and damage bearings throughout the engine.

How should the crankshaft rear gear be installed to ensure correct timing?

The gear must be heated (to approximately 80–100°C) for thermal expansion before pressing onto the crankshaft journal. Align the keyway precisely and match all timing marks with the idler gear assembly. Torque all related fasteners to SINOTRUK-specified values and verify gear backlash with a feeler gauge (typically 0.05–0.15mm).

What is the expected service life of this crankshaft rear gear?

Under normal operating conditions with proper lubrication and maintenance, this gear is designed to last the full engine overhaul interval — typically 500,000 to 800,000 km depending on operating conditions and oil change adherence.

Can I order a sample before committing to a bulk purchase?

Absolutely. We encourage procurement managers to order samples for dimensional verification and fitment testing before placing volume orders. This ensures complete confidence in the product quality for your specific application.

Ready to Secure Your Supply of Crankshaft Rear Gear 200-02115-0256?

Your fleet uptime depends on having the right parts, at the right price, delivered on time. As a factory-direct supplier of SINOTRUK engine components, JINAN METTLEAD AUTO SALES CO.LTD. gives your procurement team the competitive edge: genuine-quality parts, transparent pricing, and reliable global logistics.

👉 Contact us today to request a quotation, confirm lead times, or arrange a sample shipment for the Crankshaft Rear Gear 200-02115-0256 SINOTRUK.

👉 Browse our complete catalog of SINOTRUK HOWO Engine Parts to find every component your workshop needs — from timing gears and bearings to pistons and cylinder liners.