Brand Comparison
Cox Marine vs Yamaha Outboards
A straight, factual side-by-side — both are excellent builders that simply shine in different places. Here is how they line up and who each one suits.
| Cox Powertrain Ltd. | Yamaha Outboards | |
|---|---|---|
| Founded | Project from 2007–2008; production 2020 | 1960 |
| Headquarters | Shoreham-by-Sea, United Kingdom | Kennesaw, Georgia (U.S. marine HQ); Shizuoka, Japan (global) |
| Ownership | Privately held (Cox Powertrain) | Yamaha Motor Co., Ltd. |
| Stock / Ticker | Privately held | TYO: 7272 — Yamaha Motor Co., Ltd. |
| Annual Revenue | Not publicly disclosed (private company) | ¥2,534.2 billion group revenue (FY2025); Marine Products ¥527.6 billion |
| Employees | Not publicly disclosed | 53,701 consolidated (Dec 2023, Yamaha Motor group) |
| Manufacturing | One purpose-built manufacturing facility | 130 consolidated subsidiaries worldwide (21 in Japan, 109 overseas) |
| HP Range | 300 – 350 hp | 2.5 – 450 hp |
| Fuel / Power | Diesel (compression-ignition) | 4-stroke gasoline + electric (HARMO) |
| Product Lines | 2 families | 7 families |
| Signature Tech |
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| Famous For | The world's first purpose-built high-power diesel outboard. Cox is famous for the CXO300 — a ground-up V8 diesel aimed at military and commercial operators, not a converted automotive engine. | Reliability and resale value. Yamaha is widely treated as the default "safe choice" for offshore center-consoles, helped by proprietary corrosion protection (YDC-30 alloy, Electro-Deposition Coating) that holds up over thousands of saltwater hours. |
| Best For | Military, commercial and superyacht-tender operators needing a rugged, long-range diesel outboard and single-fuel logistics. | Reliability-first buyers, offshore multi-engine rigs, and bass/performance freshwater boats. |
Revenue and workforce figures are point-in-time snapshots from company filings for the year shown (in several cases the parent company, not just the marine division). Stock price, market value, and ROI change daily — use the ticker for live pricing.
Where Each Brand Dominates
Cox Marine on the water
Military & Commercial
Rugged diesel built for patrol, security and workboat duty with single-fuel logistics.
Long-Range & Efficiency
Diesel economy and torque suit heavy loads and extended range.
Superyacht Tenders
Diesel-tender option matching a mothership's fuel supply.
Yamaha on the water
Offshore Center-Consoles
Considered an industry standard for multi-engine offshore rigs; the F300 V6 and F425 XTO V8 are staples on large center consoles.
Commercial & Charter Fishing
"Bulletproof" reputation over high-hour saltwater use; favored by charter operators for low downtime and OEM parts availability.
Bass / Performance Freshwater
The V MAX SHO line is well-regarded on bass and performance freshwater boats.
Which one fits you?
Choose Cox Marine if…
- ✓Purpose-built marine diesel (not an adapted car engine)
- ✓Diesel efficiency and range (claims of ~30% better economy)
- ✓Commercial/military durability and single-fuel logistics
Choose Yamaha if…
- ✓Reputation for reliability and strong resale value
- ✓Very popular for offshore multi-engine center-consoles
- ✓V MAX SHO line well-regarded in bass/performance freshwater
Browse & Official Links
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The Honest Take
Both Cox Powertrain Ltd. and Yamaha Outboards are top-tier outboard builders — you can buy either with confidence. Cox Marine leans toward military, commercial and superyacht-tender operators needing a rugged, long-range diesel outboard and single-fuel logistics, while Yamaha leans toward reliability-first buyers, offshore multi-engine rigs, and bass/performance freshwater boats. For most buyers the deciding factors are which dealer and service network is strongest in your area, and which brand your local mechanics know best. Whichever you choose, you can browse listings for both on OutboardListings.com.
FAQ
Is Cox Marine or Yamaha the better outboard?
Neither is universally "better" — they lead in different areas. Cox Marine is best for military, commercial and superyacht-tender operators needing a rugged, long-range diesel outboard and single-fuel logistics. Yamaha is best for reliability-first buyers, offshore multi-engine rigs, and bass/performance freshwater boats. The right choice depends on how you boat and what dealer support is near you.
What is the HP range of Cox Marine vs Yamaha?
Cox Powertrain Ltd. offers 300 – 350 hp, while Yamaha Outboards offers 2.5 – 450 hp.
Who owns Cox Marine and Yamaha?
Cox Powertrain Ltd.: Privately held (Cox Powertrain). Yamaha Outboards: Yamaha Motor Co., Ltd..