Product Introduction
EY20 Rammer Engine Air Filter Assembly - Foam Pre-Filter with Steel Mesh Inner Element for Robin Subaru EY20 Rammer Compactor Engines
Fits Robin Subaru EY20 · EY20-3 · EI-185 · 5HP Single-Cylinder Petrol Engines · Black Foam Pre-Filter + Perforated Steel Mesh Inner Element - OEM Ref 226-32610-08 / 227-36002-03
EY20 Rammer air filter
A rammer compactor operates in some of the most demanding intake air conditions of any petrol engine application - loose sandy backfill, pulverised road base aggregate, cement dust from demolition work, and fine soil particles disturbed by the high-frequency impact of the compactor foot become airborne continuously at engine intake height during operation. The air filter is the engine's sole barrier against abrasive particulate reaching the carburetor and combustion chamber - dust that bypasses a saturated or damaged filter progressively shifts the fuel-air mixture away from calibration, while particles that continue through the intake valve act as a lapping compound against the cylinder bore and piston rings, reducing engine service life from thousands of hours to hundreds.
This air filter assembly for the Robin Subaru EY20 engine delivers a compact two-stage filtration system designed for direct mounting on the EY20 carburetor intake. The outer black open-cell foam pre-filter ring captures coarse dust and soil particles before air reaches the inner stage; the silver aluminium housing with perforated stainless steel mesh inner basket provides secondary filtration and structural rigidity under sustained rammer vibration. Direct replacement for OEM part numbers 226-32610-08 and 227-36002-03, covering EY20, EY20-3, and EI-185 engine variants.
Technical Profiles & Materials
Open-Cell Foam Pre-Filter Ring - Primary Dust Capture The outer ring is cut from open-cell polyurethane foam whose porous matrix intercepts coarse dust, soil particles, and aggregate before they reach the inner mesh element or carburetor intake throat. By carrying the bulk of the particulate load in the pre-filter stage, the foam ring significantly extends the service interval of the inner element in heavily contaminated rammer environments. The open-cell structure maintains adequate airflow even at moderate dust loading, preventing the intake restriction that causes the engine to run rich and lose power before the operator notices saturation. The foam ring is removable for washing, air drying, and light re-oiling - replace only when torn, hardened, or permanently deformed.
Perforated Steel Mesh Basket with Aluminium Housing The inner perforated stainless steel mesh basket provides secondary filtration, capturing finer particles before they reach the carburetor bore and needle valve. The mesh geometry maintains its open structure under continuous rammer vibration, resisting collapse that would occur with a paper or fabric inner element. The silver aluminium housing disc holds all components in correct alignment under bolt torque and vibration loading, distributing clamping force across the disc face rather than the foam material. The aluminium and steel construction gives the assembly durability through multiple foam cleaning cycles before full replacement is required.
OEM-Referenced Fit for EY20 / EY20-3 / EI-185 Variants Assembly dimensions - outer diameter, foam ring thickness, inner basket diameter, housing profile, and mounting hole position - match the EY20 carburetor intake geometry for direct installation without modification. Covers OEM part numbers 226-32610-08 and 227-36002-03 across EY20, EY20-3, and EI-185 variants from multiple equipment manufacturers. Correct dimensional conformance ensures the housing seats flat against the intake port, closing any gap that would allow unfiltered air bypass. Specifying by OEM part number eliminates fitment ambiguity of assemblies listed only by approximate dimensions.
Technical Specifications
| ITEM | DETAILS |
| Type | Two-Stage Round Air Filter Assembly (Foam Pre-Filter + Steel Mesh Inner) |
| Application | Robin Subaru EY20, EY20-3, EI-185 5HP engines; rammer compactors, small generators, portable power equipment |
| Code | 1606081 |
| Material | Black open-cell polyurethane foam outer; perforated stainless steel mesh inner basket; silver aluminium housing disc |
| Details explanation | OEM ref: 226-32610-08 / 227-36002-03; washable foam pre-filter; direct carburetor mount; approx. 10.5×5.5cm |
| Brand Name | SeaSummer |
| Operating Temp | -10°C to +45°C |
| Delivery Time | 30 Days |
| Packaging | Cardboard packaging |
Products Application
Scheduled Filter Replacement to Restore Carburetor Intake Airflow
Rammer compactor operators replace the EY20 air filter assembly at each scheduled service interval - typically every 50 to 100 engine hours depending on site dust levels - to restore the intake air volume that the carburetor's fuel-air calibration requires. With the engine stopped and cooled, the old assembly is unbolted from the carburetor intake, the intake face wiped clean, and the new assembly aligned and secured at the correct torque to seat the housing without distorting the foam ring. A brief engine run after replacement confirms smooth idle and responsive throttle without the rich-running or hesitation that characterise a partially restricted filter. Replacing the filter at interval rather than waiting for visible power loss prevents the carburetor mixture drift that causes progressive fuel economy deterioration between services.
Foam Pre-Filter Cleaning and Inner Mesh Inspection at Interim Service
Between full assembly replacements, the technician removes the filter, separates the foam ring from the aluminium housing, and washes the foam in warm soapy water to dislodge accumulated dust before rinsing, air drying completely, and lightly re-oiling with engine oil prior to refitting. The perforated steel mesh inner basket is cleaned with compressed air directed from the inside outward and inspected for tears, deformation, or embedded blockage that would restrict airflow or allow fine particulate to bypass the filtration stage. The aluminium housing seating face is checked for cracks or warping that would break the sealed fit against the carburetor intake port, and any foam ring that has hardened, torn, or lost its open-cell structure is replaced rather than returned to service.
On-Site Filter Condition Check in High-Dust Construction Environments
On sites where dust generation is severe - fine dry sandy backfill, demolition rubble, or dry clay subgrade - the site technician checks the EY20 air filter at the end of each operating shift rather than waiting for the scheduled interval, removing the assembly and inspecting the foam pre-filter for saturation that signals impending intake restriction. Carrying a spare filter assembly in the site service kit allows immediate replacement when the inspected filter is saturated, returning the rammer to service without the delay of workshop transport or parts delivery to the site. Proactive filter management in high-dust conditions - shortening the inspection frequency when site conditions demand it - is the single most effective preventive action for extending EY20 engine bore and ring service life on abrasive construction sites.
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.
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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.
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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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