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Product Details
Product Overview
This high-quality engine valve guide seat, identified by the model number 4105T7-2, is a precision-engineered component specifically designed for use in Dong Fang Hong diesel engines. As a critical part of the cylinder head assembly, the valve guide seat ensures proper valve stem alignment, efficient heat dissipation, and reliable sealing, which are essential for maintaining optimal engine performance and longevity.
Manufactured by , this component is produced to OEM size specifications, ensuring a direct fit and seamless integration with the original engine design. It is an ideal replacement part for agricultural, industrial, construction, and marine applications where Dong Fang Hong engines are commonly used.
Whether you are a maintenance professional, a workshop owner, or a parts distributor, this valve guide seat offers a dependable solution for restoring cylinder head functionality and preventing premature valve and seat wear.
Key Features & Benefits
Precision Fitment: Manufactured to exact OEM size standards for a direct, hassle-free installation in the cylinder head, eliminating the need for modifications.
Enhanced Durability: Constructed from high-grade, wear-resistant materials that withstand extreme combustion temperatures and pressures, reducing the risk of deformation or cracking.
Improved Valve Seal: Ensures a tight and consistent seal between the valve stem and guide, minimizing oil consumption and preventing exhaust gas leakage.
Engine Protection: Proper valve guide function helps maintain correct valve timing and clearances, protecting the engine from performance loss and potential internal damage.
Rigorous Quality Control: Each unit undergoes a machinery test report and video outgoing inspection, guaranteeing dimensional accuracy and structural integrity before shipment.
Versatile Application: Suitable for a wide range of machinery including tractors, generators, marine engines, and industrial equipment powered by Dong Fang Hong 4105T7-2 engines.
Reliable After-Sales Support: Backed by a 6-month warranty and online technical support for your peace of mind.
Technical Specifications
Specification
Details
Part Name
Engine Valve Guide Seat
Engine Model
4105T7-2
Engine Type
Diesel
Size
OEM Size (Standard)
Weight
2 kg (approx.)
Material
High-Strength Alloy / Cast Iron (Industry Standard)
Place of Origin
Guangdong, China
Warranty
6 Months
Packing
Plastic Bag, Box, Carton
Inspection
Video Outgoing & Machinery Test Report Provided
After Warranty Service
Online Support
OEM Cross-Reference
This valve guide seat is designed as a direct replacement for the original equipment part used in Dong Fang Hong engines. While the specific OEM part number for the 4105T7-2 valve guide seat may vary by production batch, this component is manufactured to match the factory specifications of the original part.
For exact cross-referencing, please compare the dimensions of this part against your original component. If you require a specific OEM number, please contact our sales team with your engine serial number for verification.
Compatibility
This engine valve guide seat is specifically designed for the Dong Fang Hong 4105T7-2 diesel engine. It is commonly used for the following applications:
Agricultural Machinery: Dong Fang Hong tractors and harvesters.
Industrial Equipment: Generators, pumps, and compressors.
Construction Machinery: Small to medium-sized loaders and excavators.
Marine Applications: Auxiliary engines and small vessel propulsion systems.
Handling Equipment: Forklifts and material handlers.
Note: This part is intended for engines with the specific 4105T7-2 model designation. Always verify your engine’s model number and cylinder head specifications before ordering.
Global Supply & Distribution
We offer worldwide shipping capabilities from our strategic location in Guangdong, China, a major manufacturing and logistics hub. Our distribution network ensures fast and reliable delivery to key industrial markets across the globe, including:
North America: Shipping to major ports such as Los Angeles, Houston, and New York.
Europe: Quick delivery to Rotterdam, Hamburg, and other major European distribution centers.
Asia-Pacific: Rapid service to Singapore, Tokyo, and Sydney.
Middle East & Africa: Efficient logistics to Dubai, Jeddah, and key African ports.
South America: Reliable shipping to Santos, Buenos Aires, and Callao.
We have extensive experience in international trade, handling both small parcel shipments and full container loads (FCL/LCL) with proper export documentation and customs clearance support.
Quality Assurance
At, quality is our highest priority. This valve guide seat is manufactured in a facility that adheres to strict quality control standards. Key quality assurance measures include:
Material Testing: Raw materials are sourced from certified suppliers and tested for hardness and durability.
Dimensional Accuracy: Each part is machined to precise OEM tolerances and verified using calibrated measuring equipment.
Machinery Test Report: A detailed report is provided with each shipment, confirming the part’s compliance with specifications.
Video Outgoing Inspection: We offer video inspection of the final product before packaging to ensure it meets your expectations.
Warranty: This product is covered by a 6-month warranty against manufacturing defects.
FAQ
Q1: How can I confirm this valve guide seat will fit my Dong Fang Hong engine? A: This part is specifically designed for the 4105T7-2 engine model. To confirm fitment, please check the model number stamped on your engine block or cylinder head. You can also compare the dimensions (inner diameter, outer diameter, and length) of your old valve guide with the specifications of this part. If you are unsure, please send us a photo or the serial number of your engine, and our technical support team will assist you.
Q2: What is the recommended installation procedure for a valve guide seat? A: Installation should be performed by a qualified diesel mechanic. The general process involves: (1) Removing the old, worn valve guide seat using a suitable driver or press. (2) Cleaning the bore in the cylinder head thoroughly. (3) Applying a light coat of engine oil to the new guide. (4) Pressing the new guide into the cylinder head to the correct depth, ensuring it is not installed too deep or too shallow. (5) After installation, it is critical to ream the guide to the correct valve stem clearance and then perform a valve seat grinding operation to ensure a perfect seal.
Q3: What are the common signs that a valve guide seat needs replacement? A: Common symptoms of a worn valve guide include excessive oil consumption (blue smoke from the exhaust), a noticeable ticking noise from the cylinder head area, poor engine performance, and difficulty starting. A compression test or a leak-down test can also help identify a failing valve guide. It is often recommended to replace valve guides when performing a cylinder head overhaul or when replacing valve seals.
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