Product Overview

Our high-precision Fuel Injector Copper Washers are engineered for demanding diesel fuel injection systems. Manufactured in Shandong, China, these gaskets and shims are designed to provide a critical, leak-proof seal between the fuel injector nozzle and the engine cylinder head. We serve a global B2B clientele across North America, Europe, and Asia-Pacific, ensuring reliable supply for maintenance, repair, and overhaul operations.

Key Features & Benefits

• Premium Copper Material: Constructed from high-quality copper for excellent heat dissipation, malleability, and corrosion resistance, ensuring a durable seal under high pressure and temperature.
• Precision Engineering: Manufactured to exacting tolerances to match OEM specifications (7.2x14x4, 7.2x15x4.8, 9.2x19x8), guaranteeing a perfect fit and preventing fuel leaks.
• Critical Performance: Designed for high-pressure common rail and traditional diesel injection systems, these copper washers are essential for maintaining optimal engine compression and fuel efficiency.
• Versatile Application: Suitable for a wide range of diesel car and light commercial vehicle engines, acting as a direct replacement for worn or damaged original parts.
• Reliable Supply Chain: Available in bulk quantities (MOQ 100pcs) with fast global shipping via DHL, UPS, FedEx, EMS, or TNT.

Technical Specifications

OEM Cross-Reference

This kit includes copper washers that cross-reference with multiple common OEM part numbers. Verify your required size before ordering.

• 7.2x14x4 mm: OE Ref: 72x14x4, 72144
• 7.2x15x4.8 mm: OE Ref: 72x15x48, 721548, 7.2*15*4.8
• 7.2x15x6.5 mm: OE Ref: 72x15x65, 721565
• 9.2x19x8 mm: OE Ref: 92x19x8, 92198, 92x19x6, 92196

Compatibility

These copper washers are designed for use in diesel injection systems. They are suitable for many diesel car and light-duty engine applications where the specified dimensions are required. Common applications include sealing the injector nozzle to the cylinder head in various European and Asian diesel engines. Always cross-reference the dimensions (OD x ID x Height) with your original part to ensure correct fitment.

Global Supply & Distribution

We are an established exporter based in Shandong, China, specializing in diesel engine components. Our logistics network ensures fast and reliable delivery to major industrial centers worldwide.

• Shipping Partners: DHL, UPS, FedEx, EMS, TNT.
• Delivery Time: 3-35 days depending on order volume and destination.
• Major Markets Served: North America (USA, Canada, Mexico), Europe (Germany, UK, France, Italy), Asia-Pacific (Japan, Korea, Australia), Middle East (UAE, Saudi Arabia), and South America.
• Export Experience: Experienced in international trade documentation and customs clearance for B2B shipments.

Quality Assurance

Our manufacturing process adheres to strict quality control standards to ensure each copper washer meets the required hardness and dimensional specifications. We offer a 6-month warranty against manufacturing defects. Each batch is subject to random sampling and dimensional inspection before shipment to guarantee a high-quality, reliable seal.

FAQ

Q: How do I know which size copper washer I need for my injector?
A: Carefully measure your old copper washer or the injector seat. You need the Outer Diameter (OD), Inner Diameter (ID), and Thickness (Height). For example, “7.2x14x4” means an OD of 7.2mm, an ID of 14mm, and a thickness of 4mm. Using the wrong thickness can affect injector protrusion and engine performance.

Q: Is it necessary to replace the copper washer every time I remove an injector?
A: Yes. Copper washers are designed as a single-use, crush-type seal. Once compressed, they lose their ability to seal effectively. Reusing an old washer is a common cause of combustion gas leaks and injector blow-by. Always replace with a new copper washer during any injector service.

Q: Can I use these washers in a high-pressure common rail system?
A: Yes, these copper washers are specifically designed for use in high-pressure common rail and other modern diesel injection systems. The high-quality copper material can withstand the extreme pressures and temperatures found in these systems, providing a reliable seal to prevent fuel leaks and maintain compression.