DH55 4PK Air Compressor Assembly for China Engine Parts – Construction & Industrial Diesel

Product Details

Product Overview

This DH55 4PK Air Compressor Assembly is a direct replacement unit designed for China-sourced diesel engines commonly used in heavy-duty construction, industrial, agricultural, and marine equipment. Manufactured under the trusted brand, this assembly provides reliable compressed air delivery for braking systems, pneumatic controls, and auxiliary air-powered components in off-highway machinery.

Engineered to OEM size specifications, the compressor features a 4PK (4-groove) pulley configuration for proper belt alignment and tension. It is suitable for engine models designated as DH55, which are frequently found in excavators, loaders, generator sets, and material handling equipment. This part is an ideal solution for maintenance, repair, and overhaul (MRO) requirements in global fleets.

Please verify your existing compressor’s pulley type (4PK), mounting pattern, and discharge port configuration to confirm compatibility with your specific engine model before purchase.

Key Features & Benefits

• OEM-Spec Dimensions: Manufactured to match original equipment size standards, ensuring straightforward bolt-on replacement without modification.
• 4PK Pulley Configuration: Standard 4-groove pulley design ensures compatibility with common serpentine belt systems used in Chinese diesel engines.
• Durable Construction: Built with high-grade cast iron and precision-machined components to withstand continuous operation in demanding environments.
• Improved Air Delivery: Optimized internal cylinder design provides consistent air pressure output for reliable brake and pneumatic system performance.
• Rigorous Quality Control: Each unit undergoes outgoing inspection and machinery test reporting to verify performance before shipment.
• Versatile Application: Suitable for construction, industrial, agricultural, genset, marine, and material handling equipment powered by DH55-series diesel engines.
• OEM Replacement Service: Available for custom branding or private labeling to meet distributor and fleet requirements.

Technical Specifications

OEM Cross-Reference

This DH55 4PK Air Compressor Assembly is designed as a direct replacement for original equipment parts used in China-sourced diesel engines. While specific OEM part numbers may vary by engine manufacturer, this unit is commonly cross-referenced with the following:

• Original Part Number: DH55-4PK-AC (as marked on product)
• Compatible OEM Series: DH55 engine platform compressors
• Alternative Reference: 4PK Air Compressor for Chinese Diesel Engines

Note: For precise fitment, please compare your original compressor’s mounting flange pattern, pulley dimensions, and discharge port orientation with this unit. Contact our technical team with your engine serial number for cross-reference assistance.

Compatibility

This air compressor assembly is commonly used for the following applications:

• Engine Models: DH55 diesel engines (China origin)
• Equipment Types: Excavators, wheel loaders, bulldozers, generator sets, agricultural tractors, marine auxiliary engines, forklifts, and industrial compressors
• Industries: Construction, mining, agriculture, power generation, marine, material handling

Fitment is inferred based on engine model designation. Always verify physical compatibility with your specific equipment before installation.

Global Supply & Distribution

maintains a robust global supply chain to serve international B2B buyers efficiently. Our distribution capabilities include:

• Worldwide Shipping: Reliable delivery to all major markets including North America, Europe, Asia-Pacific, Middle East, Africa, and South America.
• Fast Transit: Expedited processing and shipping from our Guangdong, China warehouse to major ports such as Shenzhen, Guangzhou, Shanghai, and Hong Kong.
• Industrial Hubs: Direct delivery to industrial centers, construction equipment dealers, and fleet maintenance facilities.
• Export Compliance: Full documentation for international trade, including commercial invoices, packing lists, and certificates of origin.
• Bulk Orders: Volume pricing and consolidated shipping available for distributors and large fleet operators.

Quality Assurance

We are committed to delivering reliable replacement parts that meet or exceed industry standards:

• Manufacturing Standards: Produced in ISO-certified facilities with strict quality control protocols.
• Testing: Each compressor assembly undergoes a machinery test report to verify pressure output and leak integrity.
• Inspection: Video outgoing inspection is available upon request for pre-shipment verification.
• Warranty: Backed by a 6-month warranty against manufacturing defects in materials and workmanship.
• OEM Compliance: Designed to OEM size specifications for reliable fitment and performance.

FAQ

Q1: How can I confirm this DH55 4PK air compressor will fit my engine?

To ensure compatibility, please check the following on your existing compressor: (1) pulley type – it must be a 4PK (4-groove) design; (2) mounting bolt pattern and flange dimensions; (3) discharge port location and thread size. Measure your current unit and compare with the specifications provided. If you have your engine serial number, contact our support team for a fitment verification.

Q2: What maintenance is required for this air compressor assembly?

Regular maintenance includes checking belt tension and wear every 500 operating hours, inspecting air intake filters for cleanliness, and monitoring compressor oil levels if equipped. Ensure the cooling fins are free of debris to prevent overheating. Replacement is recommended if you notice excessive oil carryover, reduced air output, or unusual noise during operation.

Q3: Can I install this compressor myself, or do I need a professional mechanic?

Installation requires basic mechanical skills and knowledge of diesel engine systems. The process involves removing the old compressor, transferring any necessary fittings or pulleys, and installing the new unit with proper torque specifications. We recommend having a qualified diesel mechanic perform the installation to ensure correct alignment, belt tension, and connection integrity, especially for brake system applications where reliability is critical.