Product Overview

This high-quality oil seal is a critical component for diesel engine fuel injection systems, designed for direct replacement and repair applications. Manufactured in Shandong, China, this seal ensures a reliable barrier against leaks and contamination in your fuel pump. We serve a global B2B clientele, with fast shipping to major industrial centers in North America, Europe, Asia-Pacific, and the Middle East via DHL, TNT, UPS, EMS, and FEDEX.

Key Features & Benefits

• Precision Engineering: Manufactured to exacting tolerances for a perfect fit and long service life in fuel injection pumps.
• Superior Material: Crafted from high-quality, oil-resistant elastomer to withstand harsh diesel environments and prevent hardening or cracking.
• Leak-Proof Performance: Designed with a precise lip geometry to provide an effective seal against high-pressure fuel, reducing the risk of system failure.
• Cost-Effective Solution: A direct replacement part offering OEM-quality performance at a competitive price point, ideal for bulk B2B orders.
• Global Availability: Stocked for immediate dispatch with a minimum order quantity of just 20 pieces, supported by 24-hour online service.

Technical Specifications

OEM Cross-Reference

This oil seal is a direct replacement for the following OEM and reference numbers:

• OEM NO: 20*30*7
• OE NO: 20307
• Model Number: Other

Alternative Dimensions Available: 20x30x7.3 mm, 20x31x17 mm, 17x28x7 mm. Please verify your original part’s dimensions before ordering.

Compatibility

This oil seal is designed for use in car engines and is specifically intended for the Fuel Injection System. It is a general-purpose replacement part suitable for a wide range of diesel engine applications where these standard metric dimensions are required. Always confirm the exact size (20x30x7mm) matches your application.

Global Supply & Distribution

• Worldwide Shipping: We ship to all major global markets via DHL, TNT, UPS, EMS, and FEDEX.
• Major Markets Served: North America (USA, Canada, Mexico), Europe (Germany, UK, France, Italy), Asia-Pacific (Australia, Japan, Korea), Middle East (UAE, Saudi Arabia), and Africa.
• Fast Delivery: Typical delivery time is 3-35 working days depending on destination and shipping method. We prioritize quick dispatch from our Shandong warehouse.
• Export Experience: Our team is experienced in international trade, ensuring smooth customs clearance and compliance with global shipping regulations.

Quality Assurance

• Manufacturing Standards: Produced under strict quality control processes to ensure dimensional accuracy and material integrity. While specific certifications are not listed, the product is defined as “High-Quality” for its intended purpose.
• Warranty: Backed by a 6-month warranty against manufacturing defects.
• Testing: Each batch is inspected to ensure it meets the required specifications for hardness, elasticity, and dimensional tolerance.

FAQ

Q1: How do I confirm this 20x30x7mm oil seal will fit my fuel pump?
A1: You must measure your existing oil seal’s inner diameter (20mm), outer diameter (30mm), and thickness (7mm). This part is designed for standard metric applications. If your seal has a different thickness, please check our other available dimensions (e.g., 20x31x17mm or 17x28x7mm).

Q2: What is the proper installation procedure for this type of oil seal?
A2: Ensure the housing bore and shaft are clean and free of burrs. Lubricate the seal lip with clean engine oil before installation. Use a proper seal driver or a socket slightly smaller than the outer diameter to press the seal evenly into the bore until it is flush. Avoid hammering directly on the seal body to prevent damage.

Q3: Can this seal be used in high-pressure common rail fuel pumps?
A3: This oil seal is designed for standard fuel injection system applications. For high-pressure common rail systems, we recommend verifying the seal’s material compatibility with your specific pressure requirements and fuel type. If in doubt, please contact our 24-hour online service with your pump model for expert advice.