Product Overview

Our premium Common Rail Injector Adjusting Shims are precision-engineered components designed for modern diesel fuel injection systems. Manufactured from high-speed steel in Shandong, China, these washers (B11, B12, B13, B14, B15, B16, B17, B21, B22, B25, B26, B27, B31) ensure optimal injector calibration and fuel efficiency. With a monthly supply capacity of 300,000 pieces and global shipping via DHL, UPS, FEDEX, EMS, and TNT, we serve major markets across North America, Europe, Asia-Pacific, and the Middle East, delivering to industrial centers within 3-7 days.

Key Features & Benefits

• High-Speed Steel Construction: Ensures exceptional wear resistance and dimensional stability under high-pressure injection conditions.
• Precision Tolerances: Each shim is manufactured to exacting specifications (±0.01mm) for consistent fuel metering and injector performance.
• Corrosion Resistance: Surface treatment protects against fuel additives and moisture, extending service life in harsh operating environments.
• Universal Fitment: Compatible with a wide range of diesel engines using B-series injector adjusting shims.
• Cost-Effective Solution: Direct OEM replacement at competitive pricing with 6-month warranty coverage.

Technical Specifications

OEM Cross-Reference

This set of adjusting shims covers the following OEM numbers and their equivalents:

• Primary OEM Numbers: B16, B25, B31, B17
• Full Compatibility Range: B11, B12, B13, B14, B15, B16, B17, B21, B22, B25, B26, B27, B31
• Alternative Part Numbers: These shims are designed as direct replacements for standard common rail injector shim kits used in various diesel engine applications.

Compatibility

These injector adjusting shims are designed for use in diesel engines equipped with common rail fuel injection systems. While specific vehicle models vary, they are commonly used in:

• Heavy-duty commercial vehicles (trucks, buses)
• Agricultural machinery (tractors, harvesters)
• Construction equipment (excavators, loaders)
• Industrial diesel generators
• Marine diesel engines

Note: Always verify fitment by comparing physical dimensions and OEM part numbers with your original shims before installation. Year ranges depend on specific engine model configurations.

Global Supply & Distribution

We offer comprehensive worldwide shipping to support B2B customers across all major markets:

• North America: Fast delivery to ports in Los Angeles, New York, Houston, and Vancouver
• Europe: Direct shipping to Rotterdam, Hamburg, Antwerp, and other industrial hubs
• Asia-Pacific: Express delivery to Singapore, Tokyo, Shanghai, and Sydney
• Middle East & Africa: Reliable service to Dubai, Jeddah, and Johannesburg
• South America: Efficient logistics to Santos, Buenos Aires, and Valparaíso

With 3-7 day delivery via major couriers (DHL, UPS, FEDEX, EMS, TNT) and a monthly supply capacity of 300,000 pieces, we ensure uninterrupted inventory for your operations. Our export team handles all international trade documentation and customs compliance.

Quality Assurance

• Manufacturing Standards: Produced under strict quality control in ISO-compliant facilities in Shandong, China
• Testing: Each batch undergoes dimensional inspection and hardness testing to ensure consistent quality
• Warranty: 6-month warranty against manufacturing defects
• Quality Grade: High-Quality commercial grade suitable for both OEM replacement and aftermarket applications

FAQ

Q1: How do I determine the correct shim thickness for my injector?

Select the appropriate shim based on your injector’s calibration specifications. Measure the existing shim thickness using a micrometer, or refer to your engine’s service manual for recommended shim sizes. Our B-series shims (B11-B31) cover a range of thicknesses; verify the part number matches your original equipment requirements.

Q2: Can I install these shims on any common rail injector?

These shims are specifically designed for B-series injector adjusting applications commonly found in diesel engines. While they fit many standard common rail injectors, we recommend comparing the outer diameter, inner diameter, and thickness with your original shim. For non-standard or specialized injectors, consult your vehicle manufacturer’s specifications.

Q3: What maintenance precautions should I take when replacing injector shims?

Always work in a clean environment to prevent contamination of the fuel system. Clean the injector bore thoroughly before installation. Use a torque wrench to tighten injectors to manufacturer specifications—over-tightening can damage the shim or injector body. After replacement, perform a leak-off test to verify proper sealing and injector operation.