Product Features

• Structure: A dual-gear assembly, consisting of a large outer timing gear and a smaller inner drive gear, both precision-machined from high-strength alloy steel with a hardened surface. It features a precision bore with a bronze bushing for smooth rotation.

• Performance: Transmits torque between the crankshaft and camshaft, maintaining precise valve timing. The hardened gear teeth resist wear and fatigue, while the bronze bushing ensures low-friction rotation even under high loads.

• Design: Factory-calibrated for exact tooth meshing and timing accuracy, with direct-fit mounting to the engine’s timing gear case.

Core Function

• Transfers rotational power from the crankshaft to the camshaft, ensuring the engine’s valves open and close at the precise moment for optimal combustion.

• Maintains stable timing across all engine speeds, preventing valve-piston interference and ensuring smooth, efficient engine operation.

• The dual-gear design allows for precise adjustment of the gear train ratio, optimizing engine performance and fuel efficiency.

Middle Gear Assy 200-04505-5133 for SINOTRUK – Precision-Engineered Transmission Component

When your SINOTRUK fleet demands uncompromising drivetrain reliability, the Middle Gear Assy 200-04505-5133 delivers exactly what your transmission system craves — smooth torque transfer, minimal power loss, and extended service life under the harshest operating conditions. Sourced directly from METTLEAD Truck Parts’ quality-controlled production line in China, this genuine-spec gear assembly speaks the language of durability that procurement professionals trust.

Functional Advantages & Procurement Benefits

Engineering That Performs Under Pressure

The Middle Gear Assy 200-04505-5133 sits at the heart of your SINOTRUK transmission, bridging the input and output shafts to ensure seamless gear engagement across all speed ranges. Every tooth profile is precision-ground to maintain consistent meshing accuracy, reducing vibration and noise while protecting adjacent drivetrain components from premature wear.

• Optimized Tooth Geometry — CNC-machined gear teeth deliver uniform load distribution, extending fatigue life by reducing stress concentration at contact points.
• Heat-Treated Alloy Steel Construction — Carburized and quenched surfaces achieve a hardness of HRC 58-62, resisting pitting and spalling even under sustained heavy loads.
• Precise Dimensional Tolerance — Manufactured to OEM-equivalent specifications (ISO Grade 6-7 accuracy) ensuring drop-in fitment without modification.
• Reduced Downtime Risk — Direct replacement design means your maintenance crew spends less time in the shop and more time keeping your fleet on the road.
• Factory-Direct Pricing — Eliminates middleman markups, giving procurement managers a clear cost advantage on bulk orders.

Why Procurement Managers Choose METTLEAD

• Competitive unit pricing with volume-tiered discounts
• Typical lead time of 3-7 days for stocked items
• Flexible payment terms (T/T, L/C, Western Union, Trade Assurance)
• White-label and custom packaging available for distributors
• Factory open for on-site inspection visits

Technical Specifications

Application Scenarios & Compatible Vehicle Models

The Middle Gear Assy 200-04505-5133 is engineered to serve the demanding transmission systems found across SINOTRUK’s heavy-duty lineup. Whether your trucks haul construction aggregates through mountainous terrain or deliver goods across long-haul corridors, this gear assembly thrives where torque demands are relentless.

Compatible Models Include:

• SINOTRUK HOWO A7 — Long-haul logistics and heavy cargo transport
• SINOTRUK HOWO T7H — Highway tractor units operating under continuous high-speed loads
• SINOTRUK SITRAK C7H — Premium heavy-duty trucks for demanding fleet operations
• SINOTRUK HOWO T5G — Medium-to-heavy distribution and construction applications
• SINOTRUK HOHAN — Regional and international transport configurations

From mining sites where dust and vibration punish every component, to intercity freight corridors where consistent shifting performance defines driver satisfaction — this middle gear assembly holds its ground. Explore our full range of SINOTRUK Truck Parts to complete your transmission rebuild or maintenance order.

OEM/ODM Capability

METTLEAD Truck Parts understands that distributors and fleet operators often need more than a standard off-the-shelf part. Our manufacturing facility supports flexible customization to match your market requirements:

• White-Label Packaging — Ship under your own brand identity with custom-printed boxes, labels, and documentation.
• Custom Packaging Solutions — Anti-corrosion treatment, individual poly-bag sealing, or bulk pallet configurations tailored to your logistics.
• Strict Quality Control — Every Middle Gear Assy 200-04505-5133 passes dimensional inspection, hardness testing, and visual examination before dispatch.
• Sample Verification — Request samples for bench testing and dimensional confirmation before committing to volume orders.
• Technical Support — Our engineering team provides fitment guidance and cross-reference verification to prevent ordering errors.

Frequently Asked Questions — Middle Gear Assy 200-04505-5133

What is the exact function of the Middle Gear Assy 200-04505-5133 in the SINOTRUK transmission?

The Middle Gear Assy 200-04505-5133 operates on the intermediate shaft of the transmission, transferring rotational force between the input gear and the output gear sets. It enables multiple gear ratio selections, allowing the driver to match engine speed to road load conditions efficiently.

Is this Middle Gear Assy 200-04505-5133 a direct OEM replacement?

Yes. This gear assembly is manufactured to OEM-equivalent dimensions and material specifications. It installs directly into compatible SINOTRUK transmissions without machining or adaptation, maintaining original shifting feel and load capacity.

What causes premature wear on the Middle Gear Assy, and how does this part resist it?

Premature middle gear failure typically results from inadequate lubrication, misalignment, or shock loading. The 200-04505-5133 combats these threats through deep-case carburizing (creating a tough core with a hard surface) and precision tooth grinding that ensures even contact distribution under load.

Can I order a single unit of the Middle Gear Assy 200-04505-5133, or is there a minimum quantity?

METTLEAD accommodates orders starting from 1 piece. However, significant per-unit savings are available on bulk purchases — our team will provide a tiered quote based on your required volume.

How should I store the Middle Gear Assy 200-04505-5133 before installation?

Keep the gear assembly in its protective packaging in a dry, temperature-stable environment. Avoid direct contact with moisture or corrosive chemicals. The factory-applied anti-rust coating protects the part during transit and reasonable storage periods.

How do I verify this part number matches my specific SINOTRUK model?

Cross-reference part number 200-04505-5133 against your vehicle’s transmission parts catalog or VIN-based parts lookup. If you need assistance confirming compatibility, our technical team can verify fitment based on your chassis number or transmission model code.

Ready to Secure Your Supply of Middle Gear Assy 200-04505-5133?

Your fleet’s uptime depends on having the right parts, at the right price, delivered on time. METTLEAD Truck Parts combines factory-direct pricing with rigorous quality assurance to keep your SINOTRUK vehicles shifting smoothly mile after mile.

Take the next step:

• Request a competitive quote with volume pricing
• Ask for a sample to verify dimensional accuracy before bulk ordering
• Confirm cross-reference compatibility with our technical team

Contact Us Now to discuss your Middle Gear Assy 200-04505-5133 requirements and let our team build a supply solution tailored to your procurement schedule and budget.