Product Features

• Structure: Forged from high-temperature resistant alloy steel, with a hardened, polished stem and a precision-machined valve head. The stem features a nitride coating for exceptional wear and corrosion resistance.

• Performance: Withstands extreme exhaust gas temperatures (up to 800–900°C) and repeated impact loads, maintaining a reliable seal to prevent gas leakage. The nitride coating reduces friction between the valve stem and guide, extending service life.

• Design: Directly interchangeable with the original equipment valve, ensuring a precise fit with the cylinder head and valve seat for optimal sealing performance.

Core Function

1. Exhaust Control: Opens and closes in sync with the engine’s four-stroke cycle to expel burned exhaust gases from the combustion chamber, ensuring efficient engine operation.

2. Sealing: Maintains a tight seal against the valve seat when closed, preventing the loss of compression and ensuring maximum combustion efficiency.

3. Durability: The high-alloy construction and nitride coating ensure long-term reliability even under the harsh operating conditions of construction machinery.

Engine Valves D04-110-33+А SHANGCHAI – Premium Replacement for Heavy-Duty Diesel Applications

When your SHANGCHAI D-series engine demands peak valve-train performance, the Engine Valves D04-110-33+А deliver the precision sealing, thermal resilience, and long service life that keep your fleet moving. Sourced directly from METTLEAD Truck Parts’ quality-controlled supply chain in China, these valves meet OEM dimensional standards while offering the factory-direct pricing that procurement managers need to stay competitive.

Every valve in this series is engineered to withstand the extreme combustion pressures and temperatures inside SHANGCHAI diesel engines — ensuring reliable gas sealing, minimal carbon buildup, and extended maintenance intervals across thousands of operating hours.

Key Features and Benefits of Engine Valves D04-110-33+А SHANGCHAI

• OEM-Grade Dimensional Accuracy — Manufactured to match the original D04-110-33+А specification, guaranteeing drop-in fitment without machining or modification.
• High-Temperature Alloy Construction — Forged from heat-resistant martensitic steel with stellite-tipped seating surfaces, these valves resist warping and pitting at sustained exhaust temperatures above 700 °C.
• Precision-Ground Stem Finish — Surface roughness held below Ra 0.4 µm to minimize guide wear and oil consumption, extending valve guide service life by up to 30 %.
• Optimized Sealing Geometry — 45° seat angle with micro-lapped contact band ensures gas-tight combustion sealing from first start, reducing break-in time.
• Corrosion-Resistant Coating — Chrome-plated stem resists sulfur and acidic byproducts common in high-sulfur diesel fuel markets across Africa, Southeast Asia, and the Middle East.
• Strict Quality Control — Each batch undergoes hardness testing (HRC 40–45 intake / HRC 35–40 exhaust), dimensional CMM inspection, and metallographic sampling before shipment.
• Cost-Effective Bulk Pricing — Factory-direct supply eliminates middlemen, delivering 20–35 % savings versus aftermarket distributors without sacrificing quality.

Technical Specifications — Engine Valves D04-110-33+А SHANGCHAI

Application Scenarios — Where Engine Valves D04-110-33+А Perform

The SHANGCHAI D-series engine family powers a wide range of heavy-duty vehicles and industrial equipment across global markets. These valves are designed to serve reliably in the following real-world applications:

• SDLG & XCMG Wheel Loaders — SHANGCHAI SC8DK engines in LG956L, LG958L, and ZL50GN loaders operating in mining and quarry environments where dust ingestion accelerates valve wear.
• SANY & Zoomlion Truck Cranes — SC9D-series powered mobile cranes requiring consistent low-end torque and reliable valve sealing under variable-load duty cycles.
• SHACMAN & FOTON Dump Trucks — Vehicles equipped with SHANGCHAI diesel engines for construction-site haulage across Africa, Central Asia, and South America.
• Marine Generator Sets — SHANGCHAI-based gensets aboard coastal vessels and port equipment, where salt-air corrosion demands chrome-plated valve stems.
• Stationary Power Generation — Backup and prime-power diesel gensets in remote infrastructure projects running 8,000+ hours per year.

Whether your fleet operates in the extreme heat of the Middle East or the high-altitude conditions of South America, these valves maintain their sealing integrity and dimensional stability across the full operating envelope.

OEM / ODM Capability — Custom Packaging and White-Label Solutions

METTLEAD Truck Parts understands that distributors and fleet operators often need more than a generic box on the shelf. Our flexible manufacturing and packaging capabilities include:

• White-Label Packaging — Your brand, your logo, your part number printed on every box. We handle the design files or work from your artwork.
• Custom Kitting — Combine Engine Valves D04-110-33+А with matching valve guides, valve seats, and stem seals into a single overhaul kit SKU for faster workshop turnaround.
• Private Labeling with QR Traceability — Each package can carry a unique QR code linking to batch inspection reports, giving your end customers confidence in authenticity.
• Flexible Order Quantities — From trial orders of 50 pieces to container-load volumes, our production line scales to your demand cycle.

Explore our full range of SHANGCHAI engine parts to build a complete procurement list in one shipment.

Frequently Asked Questions — Engine Valves D04-110-33+А SHANGCHAI

What is the exact OEM cross-reference for D04-110-33+А?

D04-110-33+А is the SHANGCHAI original part number used across SC8D and SC9D engine platforms. It cross-references to several aftermarket catalog numbers depending on the distributor. We can verify fitment against your engine nameplate data — simply share the engine serial number when you inquire.

Are these intake valves, exhaust valves, or both?

The D04-110-33+А designation covers a specific valve position in the SHANGCHAI cylinder head. Because intake and exhaust valves differ in head diameter and metallurgy, please confirm your required application (intake, exhaust, or full set) when placing your inquiry so we ship the correct variant.

What material grade ensures durability at high exhaust temperatures?

The valve head is forged from 21-4N austenitic heat-resistant steel — the same grade specified by SHANGCHAI for OEM production. The stem uses 4Cr9Si2 martensitic steel with hard chrome plating, providing excellent wear resistance inside the valve guide bore even under marginal lubrication conditions.

How do I verify quality before committing to a bulk order?

We encourage sample orders. Each sample ships with a dimensional inspection report and material certificate. You are also welcome to visit our facility in China for an on-site quality audit — we support factory inspections and third-party testing arrangements.

Can these valves handle high-sulfur diesel fuel?

Yes. The chrome-plated stem and stellite-reinforced seat face are specifically chosen to resist the corrosive byproducts of high-sulfur combustion, making these valves well-suited for markets in Africa, the Middle East, and parts of Southeast Asia where fuel sulfur content remains elevated.

What is the typical lead time for production orders?

Standard stock items ship within 3–7 business days. Custom-packaged or large-volume orders typically require 15–25 days depending on quantity and packaging complexity. We provide a confirmed delivery schedule at quotation stage.

Ready to Secure Your Supply of Engine Valves D04-110-33+А SHANGCHAI?

Stop overpaying through middlemen. METTLEAD Truck Parts gives you direct access to factory-quality SHANGCHAI engine valves with transparent pricing, strict QC documentation, and flexible logistics to your port of choice.

Your next step is simple:

1. Share your required quantity and engine model.
2. Receive a detailed quotation within 24 hours.
3. Approve samples or proceed directly to production order.

Contact us now to request pricing, confirm fitment, or schedule a factory visit. Our team responds to every inquiry within one business day.