The CV40 piston assembly usually combines a wear-resistant plastic piston and a flexible vacuum diaphragm. The piston moves smoothly and the diaphragm provides reliable sealing. According to engine intake vacuum, the piston automatically rises to change the air passage area, adjusting fuel mixture and engine response. When the original vacuum diaphragm becomes aged, cracked or the piston sticks, symptoms such as unstable idle, slow acceleration, high-speed fuel cut and backfire may occur. This assembly can be used as a replacement part to restore normal carburetor metering function.

Q1: Is ODM independent product development service available?
A: Yes, we provide one-stop ODM services including product design, development, prototyping and mass production.

Q2: Do you support mixed shipping of multiple products?
A: Sure, we support mixed loading and mixed shipping of different customized products to meet customer diverse needs.

Q3: What factors will affect your standard delivery time?
A: Only extreme force majeure factors will affect delivery; conventional custom orders are guaranteed to be delivered within 15 days.

Q4: Do you have third-party quality certification?
A: Our factory has passed multiple international third-party certifications, and all products meet export quality standards.

Q5: What is your quality after-sales guarantee policy?
A: For quality problems caused by our production, we provide free rework, replacement and after-sales solution support.