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DB4427-6337 is a DB series 4-cylinder mechanical inline high-pressure fuel injection pump specially calibrated for NEF 4 TC 2V diesel engine, serving as the core assembly of China II mechanical fuel supply system. It generates high injection pressure mechanically through four sets of precision plunger assemblies. The built-in full-range mechanical governor accurately controls fuel delivery volume, stable idle speed, overspeed fuel cut-off protection and injection advance angle. Optimized with increased fuel supply for long-term full-load heavy-duty operation of NEF 4 TC 2V engine, it delivers strong low-speed torque and sufficient power reserve for full-load climbing, heavy starting and continuous high-intensity work.
Key Features & Benefits
Mechanically generate high injection pressure for NEF 4 TC 2V turbocharged engine. Built-in mechanical governor realizes stable idle speed and overspeed fuel cut-off safety protection. Precisely adjust injection advance angle and fuel supply to guarantee smooth engine operation. Heavy-load dedicated fuel curve outputs powerful low-speed torque for overloaded transportation. All-mechanical structure owns superior anti-shock performance for bumpy severe working environments. Wear-resistant alloy plunger and delivery valve pairs effectively extend service life. High tolerance for impure diesel fuel, insensitive to tiny particulate impurities. Universal DB4427 mounting dimension supports direct interchange with all serial pumps. Easy disassembly, inspection and overhaul with affordable maintenance expenses. Widely applied on heavy trucks, loaders, harvesters and generators with high cost performance.
Product Images
Company Details
Bronze Gleitlager
,
Bronze Sleeve Bushings
and
Graphite Plugged Bushings
from Quality China Factory
Business Type:
Manufacturer
Year Established:
2018
Total Annual:
15000000 USD-16000000
Employee Number:
130~160
Ecer Certification：
Verified Supplier
We are a company that has been deeply engaged in the field of auto parts production for more than 30years. Our company boasts an extremely professional team with over 90 members, including experienced maintenance technicians, assembly technicians, and professional R&D engineers. We are equipped ... We are a company that has been deeply engaged in the field of auto parts production for more than 30years. Our company boasts an extremely professional team with over 90 members, including experienced maintenance technicians, assembly technicians, and professional R&D engineers. We are equipped ...
