Products Description
GX240/173F & GX270/177F Generator Fan Case | Engine Cooling Fan Shroud for 8–9 HP Generator & Industrial Engine Platforms
Deep-Drawn Stamped Steel Blower Housing with Gloss Red Enamel Finish, Integrated Recoil Starter Mount & Multi-Point Mounting Flanges
Generator GX240/173F/GX270/177F Fan case
This fan case - also referred to as the blower housing or fan shroud - is the deep-drawn stamped steel cover that surrounds the engine cooling fan and flywheel on Honda GX240 (240 cc, ~8 HP) and GX270 (270 cc, ~9 HP) engines, as well as their Chinese 173F and 177F clone equivalents. It performs three critical functions: (1) it directs the cooling airflow generated by the fins on the rotating flywheel across the cylinder and cylinder head cooling fins, preventing overheating during continuous full-load operation; (2) it provides the structural mounting platform for the recoil starter assembly, which bolts to the central circular face; and (3) it serves as the engine's forward mounting structure, with integrated flanges at the base and sides that secure the engine to the generator frame, pump bracket, or pressure washer chassis.
Technical Profiles & Materials
Integrated Recoil Starter Mount - Central Circular Face with Precision Bolt Pattern：
The central circular opening features a multi-stepped rim with precision-drilled mounting holes positioned at the 12, 2, 6, and 10 o'clock positions (and additional positions depending on the specific recoil starter model). These holes accept the bolts that secure the recoil starter assembly to the shroud face. The stepped rim design centers the recoil starter pulley concentrically with the flywheel nut, ensuring the starter pawls engage cleanly with the flywheel cup on every pull.
Multi-Point Mounting Flanges - Engine-to-Frame Structural Connection：
The shroud includes multiple integrally formed mounting flanges: a rounded tab with a single hole at the bottom left, wider flanged feet with reinforcement ribs at the bottom center and right, and additional mounting points around the periphery. These flanges bolt the engine to the generator frame, pump bracket, or pressure washer chassis - the fan case is literally the structural bridge between the engine and the equipment it powers.
Technical Specifications
| ITEM | DETAILS |
| Type | Engine Cooling Fan Case / Blower Housing - Deep-Drawn Stamped Steel |
| Application | Honda GX240 (240 cc, ~8 HP), GX270 (270 cc, ~9 HP), 173F, 177F 4-stroke engines on generators, water pumps, pressure washers & industrial equipment |
| Code | 1603052 |
| Material | Heavy-gauge (1.0–1.2 mm) SPCC cold-rolled stamped steel, baked red alkyd-enamel finish over phosphate base coat |
| Details explanation | Deep-drawn asymmetrical shroud. Multi-stepped central rim with precision recoil starter bolt pattern. Integral reinforced mounting flanges. Direct bolt-on for GX240/GX270/173F/177F. |
| Brand Name | SeaSummer |
| Operating Temp | −20 ~ +150 °C (shroud surface near cylinder) |
| Delivery Time | 30 Days |
| Packaging | Cardboard packaging |
Products Application
Engine Rebuild & Frame-Mount Replacement
When a generator is dropped or tipped over during transport, the fan case is almost always the first component to take the impact - the shroud is the forward-most part of the engine. A bent shroud that contacts the rotating flywheel fins makes a distinctive scraping noise and will quickly wear through both the shroud and the plastic fan fins. Replacing the shroud is a common engine-out or partial-disassembly repair: remove the recoil starter, fuel tank, and cylinder shroud, unbolt the damaged fan case from the engine block, and install the replacement. The jig-drilled mounting holes ensure the new shroud aligns perfectly with the existing frame bolt pattern - no drilling, no slotting, no shimming.
Engine-Driven Water Pumps & Pressure Washers
The same GX240/GX270 platform drives 3-inch centrifugal water pumps for irrigation, dewatering, and firefighting, as well as commercial-grade pressure washers delivering 3,000–4,000 PSI at 4–6 GPM. In water pump service, the fan case is exposed to splash water and mud that accelerate corrosion on unpainted or scratched steel surfaces. The baked enamel finish on this shroud provides the corrosion resistance needed for wet-service applications. In pressure washer service, the engine runs at continuous full load for hours - the fan case must maintain its shape and sealing to ensure maximum cooling airflow reaches the cylinder fins.
Generator Sets
(4–6 kVA Class)
The GX240 and GX270 engines paired with 4–6 kVA alternator heads power millions of portable and stationary generators used for residential backup, construction sites, outdoor events, and small business power. The fan case is the single most exposed structural component on a generator engine - it faces forward, unprotected, and takes impact from tools dropped during refueling, being pushed against walls, and transport in truck beds. A dented or cracked fan case not only disrupts cooling airflow (causing the engine to overheat and shut down under load within 20–30 minutes) but also misaligns the recoil starter, making the generator difficult or impossible to start.
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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Customer Reviews
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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