Product Features

• Structure: Cast from high-strength alloy cast iron, with integrated intake/exhaust ports, valve seats, injector bores, and coolant passages. It features a modular design for easy maintenance of valves and injectors.

• Performance: Precision-machined combustion chambers and valve seats ensure optimal airflow and fuel atomization, supporting high engine efficiency and low emissions. The cast iron construction provides excellent heat resistance and rigidity.

• Design: Equipped with pre-installed valve guides and seats, and includes mounting points for rocker arms, injectors, and the intake/exhaust manifold, simplifying assembly.

Core Function

• Seals the top of the cylinder block to form the combustion chamber, containing high-pressure gases during the engine’s power stroke.

• Houses the intake and exhaust valves, controlling airflow into and out of the cylinders for efficient combustion.

• Contains coolant passages to dissipate heat from the combustion process, preventing overheating and ensuring stable performance.

Cylinder Head Assy 202-03100-6455 SINOTRUK – Factory-Direct OEM Quality for Heavy-Duty Diesel Engines

When your fleet depends on uninterrupted performance, the Cylinder Head Assy 202-03100-6455 delivers the precision-engineered sealing and combustion control that SINOTRUK engines demand. Sourced directly from our manufacturing base in China, this cylinder head assembly is built to meet or exceed original equipment specifications — ensuring your trucks stay on the road and your maintenance costs stay down.y.

Key Features & Benefits of Cylinder Head Assy 202-03100-6455

Precision-Engineered for SINOTRUK Powertrains

This cylinder head assembly is the heart of your engine’s breathing system. It governs intake and exhaust flow, houses the valve train, and maintains critical combustion chamber geometry. Every casting is machined to tight tolerances that guarantee a perfect gasket seal and optimal thermal management.

• OEM-Matched Fitment — Direct replacement for part number 202-03100-6455, eliminating guesswork during installation.
• High-Grade Cast Iron/Alloy Construction — Resists thermal fatigue, warping, and cracking under sustained high-temperature operation.
• Optimized Coolant & Oil Passages — Engineered internal channels promote even heat dissipation and reliable lubrication to valve seats and guides.
• Pre-Machined Valve Seats & Guides — Ready for direct assembly, reducing workshop downtime by up to 40% compared to bare-head rebuilds.
• Strict Quality Control — Each unit undergoes pressure testing, dimensional inspection, and surface-finish verification before shipment.

Application Scenarios

1. Compatible Vehicle Models

• SINOTRUK HOWO A7 / HOWO T7H heavy-duty tractor trucks
• SINOTRUK SITRAK C7H / G7 series long-haul tractors
• SINOTRUK HOWO TX heavy-duty dump trucks
• Vehicles equipped with MAN-technology MC11 / MC13 diesel engines (Euro III–Euro V emission standards)

2. System & Functional Role

• Engine Top-End Assembly — Seals the combustion chamber, supports injector mounting, and anchors the camshaft housing.
• Valve Train System — Provides precision bores for intake/exhaust valve guides, ensuring accurate valve timing and gas exchange.
• Cooling System Interface — Integrates with the engine block’s coolant jacket to prevent hot-spot formation around cylinders.
• Emission Control Support — Maintains combustion geometry critical for meeting emission-stage requirements.

Technical Specifications — Cylinder Head Assy 202-03100-6455

OEM/ODM Capability & Custom Packaging

JINAN METTLEAD AUTO SALES CO., LTD. understands that distributors and fleet operators often need more than a standard box on the shelf. That’s why we offer flexible partnership options:

• White-Label Packaging — Ship under your own brand identity with custom-printed boxes, labels, and documentation.
• Custom Kitting — Bundle the cylinder head assembly with gasket sets, head bolts, and valve stem seals for a complete repair kit.
• Volume Pricing Tiers — Factory-direct pricing means no middleman markups. The more you order, the more competitive your landed cost becomes.
• Quality Documentation — We provide inspection reports, material certificates, and dimensional records upon request.

We also supply a full catalog of SINOTRUK HOWO Engine Parts — from turbochargers and crankshafts to piston kits and oil pumps — so you can consolidate your sourcing with a single trusted supplier.

Frequently Asked Questions — Cylinder Head Assy 202-03100-6455

Q1: Is this cylinder head assembly a complete unit or a bare casting?

This is a complete assembly (Assy), meaning it comes pre-fitted with valve guides, valve seats, and related internal components. It is ready for valve train installation, significantly reducing your rebuild time.

Q2: How do I confirm this part fits my specific SINOTRUK engine?

Cross-reference your existing part number with 202-03100-6455. If you can provide your engine nameplate data (engine model, serial number, or VIN), our technical team will verify compatibility before you place an order.

Q3: What causes a cylinder head to fail, and how does this replacement prevent recurrence?

Common failure modes include thermal cracking from overheating, warping due to improper torque sequences, and coolant passage corrosion. Our replacement head uses upgraded alloy composition and tighter flatness tolerances (≤ 0.05 mm) to resist these failure mechanisms when installed per OEM torque specifications.

Q4: Can I order a sample before committing to bulk quantities?

Absolutely. We encourage procurement managers to order a single unit for inspection and fitment testing. Sample orders ship within 3–5 business days, and sample costs can be credited toward your first bulk purchase.

Q5: What is the typical lead time for bulk orders of this cylinder head?

Standard bulk orders (10–50 units) ship within 7–15 business days. For larger volumes or custom-packaged orders, lead time is confirmed upon order placement — typically 15–25 days depending on packaging requirements.

Q6: Does this cylinder head require any machining before installation?

No additional machining is required under normal circumstances. The deck surface, valve seats, and guide bores are finish-machined to OEM specifications. Simply follow the manufacturer’s torque sequence and use a new head gasket set for installation.

Ready to Secure Factory-Direct Pricing? Let’s Talk.

Every day without the right parts on your shelf is a day your customers wait — and waiting costs money. Whether you need a single Cylinder Head Assy 202-03100-6455 SINOTRUK for an urgent repair or a container load for your warehouse, JINAN METTLEAD AUTO SALES CO., LTD. is ready to deliver.

• ✅ Factory-direct pricing — no middleman
• ✅ Complete SINOTRUK parts catalog under one roof
• ✅ Flexible, secure payment methods
• ✅ Visitors welcome at our facility for inspection

Get your personalized quote within 24 hours. Send us your part number, quantity, and destination — our team will respond with pricing, lead time, and shipping options tailored to your needs.

👉 Contact Us Now to Request a Quote