Products Description
MS051 Complete Muffler Exhaust Assembly | STIHL Professional Chainsaw Sound Suppression
Pressed-Steel Dual-Shell Acoustic Attenuation Module featuring Cross-Embossed Reinforcement, Integrated Flange-Mount Intake, and Dual-Bracket Structural Anchoring for Large-Displacement Forestry Saws.
Chain saw MS051 Muffler
The MS051 muffler assembly is a complete exhaust-management unit for STIHL's large-displacement professional chainsaw platform. Fabricated from two deep-drawn pressed-steel shells joined by a continuous perimeter seam, the box-form body encloses a multi-baffle expansion chamber that progressively dissipates exhaust pressure pulses into a controlled, attenuated discharge. The top-surface cross-embossed structural reinforcement increases shell rigidity against the high-frequency vibrations of sustained full-throttle felling. An integrated vertical intake flange with a central rectangular port and dual mounting holes provides direct bolt-up alignment to the cylinder exhaust port, while the twin lateral mounting brackets anchor the assembly securely to the saw's crankcase. Purpose-calibrated as a direct OEM-standard replacement, it restores factory-spec sound suppression, exhaust-gas containment, and structural mounting integrity.
Technical Profiles & Materials
Dual-Shell Pressed-Steel Expansion Architecture: The muffler body is assembled from two deep-drawn steel halves with a continuous perimeter seam, forming a sealed multi-baffle expansion chamber that disrupts and dissipates exhaust pressure waves through progressive volume expansion before controlled discharge.
Cross-Embossed Structural Reinforcement: The top surface features a stamped cross-pattern, functioning as a geometric stiffener that increases the shell panel's resistance to vibration-induced flexing and fatigue cracking under the extreme acoustic and mechanical energy of large-displacement 2-stroke exhaust pulses.
Integrated Vertical Intake Flange: The raised tubular intake neck terminates in a flat flange with a central rectangular port aperture and two precision-positioned bolt holes for direct, gasket-sealed mounting to the cylinder exhaust face-eliminating the separate adapter plates and extended leak paths of multi-piece induction interfaces.
Technical Specifications
| ITEM | DETAILS |
| Type | Complete Chainsaw Exhaust Muffler Assembly |
| Application | STIHL MS051 Chainsaw / Large-Displacement Professional Forestry Engine |
| Code | 0120063 |
| Material | Deep-Drawn Pressed Steel / Matte Black High-Temp Finish |
| Details explanation | Pressed-Steel Dual-Shell Multi-Baffle Expansion Chamber |
| Brand Name | SeaSummer |
| Operating Temp | -20°C to +700°C (Muffler Body Continuous) |
| Delivery Time | 30 Days |
| Packaging | Cardboard packaging |
Products Application
Exhaust System Structural & Acoustic Restoration
The definitive replacement for MS051 saws exhibiting muffler degradation-separated perimeter seams from vibrational fatigue, cracked mounting brackets from impact or sustained stress, or excessive noise output from internal baffle collapse or corrosion perforation. The complete assembly addresses all failure points in a single installation.
Post-Impact Muffler Body Replacement
Ideally suited for replacing mufflers deformed by chainsaw kickback events, accidental drops during tree-climbing, or crushing under felled timber. A deformed body alters the internal expansion-chamber volume and backpressure, directly affecting engine tune, while a separated seam releases exhaust gas at unsafe angles, creating fire hazards in dry forest-floor conditions.
Vintage Professional Saw Restoration
An essential exhaust-system spare for collectors and specialist workshops maintaining the durable MS051 platform. Its OEM-standard geometry and complete bolt-on format support straightforward replacement without fabrication or modification, extending the operational life of these high-value professional saws in the global aftermarket.
Quality and Craftsmanship Details
Products Package
About Us
As a premier garden machinery parts supplier, Jiaxing Norsun Trading Co., Ltd. bridges global distributors with over 100 vetted China manufacturers. We streamline your B2B supply chain through strict quality control, flexible production, and factory-direct wholesale pricing. Partner with us for reliable, high-volume sourcing of precision-engineered outdoor power equipment components.
Trusted Partnership Power
YOUR PROFESSIONAL ONE-STOP SOURCE
FOR 10000+ OUALITY PARTS
Verified Factory Excellence
BACKED BY 200+ TRUSTED FACTORY PARTNERS
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FAQ
Q: Are you an impartial industrial components dealer or a direct China water pump factors factory?
A:We are a direct, ISO9001-certified engineering water pump components manufacturing facility and precision fluid-control factor manufacture exporter primarily based in China. We function our personal cleanroom injection molding bays, computerized ultrasonic welding arrays, computerized hydraulic stress check stations, and clean-room packaging lines, passing direct-factory wholesale price financial savings straight to your element procurement margins.
Q: Can your manufacturing unit furnish full certification forms for food-contact or consuming water compliance?
A: Yes, absolutely. For food, beverage, or scientific applications, our manufacturing unit makes use of one hundred percent virgin, un-recycled polypropylene resins accompanied by means of fabric traceability certificates. We mechanically furnish B2B purchasers with complete FDA compliance documentation, NSF-grade compound declarations, and RoHS/REACH chemical protection screening sheets to make certain clean clearance thru worldwide customs.
Q: Do you provide customization picks for distinctly corrosive fluids like sturdy acids or ozone?
A: Yes, we are a thoroughly succesful OEM/ODM supplier. For aggressive chemical or ozone environments, we can improve the 12x26.5mm valve configuration in our factory: substituting the general PP housing with top class PVDF (Fluoropolymer) and changing any steel springs with Hastelloy or whole springless gravity-ball architecture, making sure final chemical resistance.
Q: How do we impervious a pattern batch to execute computerized lifecycle and burst-pressure testing?
A: We relatively inspire complete laboratory contrast earlier than logging mass grant agreements. We can ship a pattern lot of 5-10 gadgets of our inventory 12x26.5mm take a look at valves for assessment (setup costs and DHL/FedEx air freight apply). Once the factors pass by your inner lifecycle verification and a formal wholesale quantity manufacturing contract or container run is locked in, the sampling charges are a hundred percent credited returned to your industrial balance.
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