This multi-model piston assembly kit is a core power part for MS series chainsaws (MS660/MS381/MS250 etc.) and FS series trimmers (FS55/FS220). It includes a precision-machined metal piston, wear-resistant piston pin, and sealing piston rings.

Designed to match the cylinder dimensions of each model, the kit installs tightly without modification. The piston's smooth surface reduces cylinder friction, while the rings ensure airtightness for efficient power conversion. It works reliably for both chainsaw logging and trimmer grass-cutting tasks.

Q1: Can you customize products according to OEM/ODM requirements?
A: Sure, we can fully customize products in accordance with customer OEM and ODM technical requirements.
Q2: Do you cooperate with professional raw material suppliers?
A: We cooperate with certified professional suppliers to adopt high-grade raw materials for production.
Q3: How to arrange transportation for my ordered goods?
A: We can arrange sea freight for bulk orders, air freight for urgent orders and express for small orders.
Q4: How long does mass production and delivery take?
A: The whole mass production and delivery cycle is within 15 days after customer payment.
Q5: Do you implement 100% pre-shipment quality inspection?
A: Yes, 100% full inspection is implemented for all finished products before factory shipment.
Q6: Is it possible to get free product samples?
A: Product samples are free, while customers need to cover international freight expenses.
Q7: What quality assurance measures does your factory have?
A: We have complete quality assurance measures covering raw material inspection, process inspection and finished product inspection.