01
Top Real Business Limited · Since 2011
Innovation drives the future of power
The company specializes in the R&D, manufacturing, and sales of outboard motor parts and complete engines.
2011
Founded in Kowloon, Hong Kong
2
Brands — ERIONER and OVERSEE
20+
Countries in the ERIONER service network
24h
Reply time for inquiries
// 01Product range
One-stop parts solution
We specialize in providing a one-stop parts solution for your watercraft. From precision hydraulic steering systems and CDI units to multi-function digital gauges, carburetor kits, and various gaskets, we carefully select each product to ensure a perfect fit for major brands and universal models.
Download catalog
// 02About us
One group, two brands.
Top Real Business Ltd. was established in Kowloon, Hong Kong in 2011. The company specializes in the R&D, manufacturing, and sales of outboard motor parts and complete engines. With a professional technical team and an excellent marketing team, the company continuously launches innovative and practical products.
One group, two brands. Recognizing the differences between online and offline ecosystems, the company operates two independent brands—ERIONER (offline) and OVERSEE (online)—to precisely target different customer segments.
About Top Real
01
Comprehensive One-Stop Shopping
We offer a full line of parts covering steering systems, electronic controls, power units, and daily maintenance consumables. Whether you need universal parts or exact replacements for specific models, you can find them here.
02
Strict Quality Assurance
The marine environment is complex and demanding, requiring extreme durability. We strictly control our supply chain to ensure all parts have excellent corrosion resistance and reliable performance.
03
Professional Fitment & Service
Whether you are an experienced marine mechanic or a passionate boat owner, we provide not only products but also professional fitment advice to ensure you buy the right part with confidence.
// 03Capabilities
From R&D to delivery
Every step, from concept to certification, is guided by our single commitment: to serve our customers better through quality and performance.
99.9%+
Picking accuracy with AI vision and RFID
10×
Max. order capacity gain with goods-to-person picking
30–60%
Better space use with AS/RS
3
Trademark regions: US · Europe · South America
// 04Our brands
Dual-brand strategy
With deep insight into the differences between online and offline markets, we have established two brands under our umbrella — ERIONER (offline) and OVERSEE (online) — adopting a dual-brand independent operation model to precisely target different customer segments.
// 05Showroom & factory
Explore ERIONER Showrooms
Experience the true quality of our outboard motors firsthand. A glimpse into our professional offline spaces and craftsmanship.
Showroom design concept. AI-assisted visualization; layout and finishes are illustrative.
// 06Partnership
Become an ERIONER dealer
ERIONER is more than a supplier; we are a growth engine for your business. Through our comprehensive offline support system—ranging from structured dealer guidance to reliable bulk after-sales service—we ensure that every partner operates with absolute confidence.
- 01 On-site testing
- 02 Transparent commercial support
- 03 Face-to-face technical expertise
- 04 Structured dealer guidance
- 05 Reliable bulk after-sales service
// 07Catalogs
Download Product Catalog
// 08News
Latest news
// 09FAQ
Frequently asked questions
Still have a question?
Send us your inquiry and our experts will reply within 24 hours.
// 10Contact Us
Have a specific requirement?
Send us your inquiry and our experts will reply within 24 hours.
Hong Kong headquarters
Flat A516, 5/F, Efficiency House, 35 Tai Yau Street, San Po Kong, Kowloon, Hong Kong
China office
No.11 Building, Guanchang Garden, East Jianshe Rd., Pingxiang City 337000, China