Products Description
GX390 188F Heavy-Duty Crankcase Housing with Precision Bearing Alignment
Industrial-spec structural engine module featuring high-density ADC12 substrate for professional 13HP-15HP power units.
Water pump GX390/188F crankcase cover
Designed as a high-integrity mechanical interface, the GX390/188F structural housing unit ensures axial stability for high-displacement gasoline engines. Manufactured from a high-tensile metallic substrate, this component features a precision-machined bearing retention matrix that guarantees absolute rotational alignment and optimizes hydrodynamic sealing performance.
Engineered for rigorous industrial environments, this structural module is specifically calibrated to dissipate vibration-induced stress, effectively mitigating caloric saturation and structural fatigue during extended high-torque pumping or power-generation cycles. Its robust construction supports sustained operational reliability under demanding conditions.
Technical Profiles & Materials
ADC12 Die-Cast Alloy: High rigidity, thermal distortion resistance, dimensional stability across operating temperature ranges.
Precision Alignment: CNC-machined bearing/oil-seal interface ensures crankshaft concentricity, reduces friction & vibration. Tolerance: ±0.03 mm.
Precision Alignment: CNC-machined bearing/oil-seal interface ensures crankshaft concentricity, reduces friction & vibration. Tolerance: ±0.03 mm.Induction-Ready Utility Ports: Integrated with specialized threaded apertures for oil-level sensing and lubrication management, precision-milled to ensure air-tight integration with electronic and mechanical engine sensors.
Technical Specifications
| ITEM | DETAILS |
| Type | Engine Structural Side Housing |
| Application | Water Pump GX390 / 188F / 13HP-15HP |
| Code | 1604131 |
| Material | Die-cast ADC12 Aluminum Alloy |
| Alignment Tolerance | Bearing Seat: ±0.03 mm |
| Brand Name | SeaSummer |
| Clamping Protocol | Standard 7-Bolt Symmetrical Pattern |
| Delivery Time | 30 Days |
| Packaging | Cardboard packaging |
Products Application
Industrial-Grade Fluid
Transfer
Optimized for 4-inch high-throughput water pumps, delivering consistent crankshaft support under heavy hydraulic loads and high-RPM cycles in irrigation and drainage operations.
Professional Powerhead Restoration
Serves as a high-tolerance drop-in replacement for original units, restoring factory-grade rotational stability and safeguarding internal drivetrains against catastrophic failure.
Heavy-Duty Construction Logistics
≥80 HB hardness, 389cc–420cc compatibility, CNC-machined ±0.03 mm bearing tolerance, anti-oxidation passivation. Industrial-grade certified for continuous-duty outdoor power and generation applications.
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
Production process
Quality control
Expo experience
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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