BRP EVINRUDE/JOHNSON 318573 Bolts Freight Evinrude/johnson/omc
fits make: Omc.
( Brand: Brp Evinrude/johnson ), ( Manufacturer Part Number: 318573 ), ( Part Type: Bolt ), ( Country Of Origin: United States )
Review BRP EVINRUDE/JOHNSON Evinrude/johnson/omc Quantity Four Of #318573 Bolts Free Freight
The **Evinrude/Johnson OMC 318573 Bolt Set** is a meticulously engineered, high-performance fastener kit designed exclusively for the maintenance and assembly of Evinrude/Johnson Outboard Motors, including the OMC (Original Motor Corporation) line, ensuring optimal functionality, durability, and reliability for both recreational and professional boating applications. This precision-crafted bolt set is engineered to meet the stringent standards required for marine propulsion systems, where performance, corrosion resistance, and structural integrity are paramount. Each bolt in this set is manufactured from **high-strength, marine-grade steel**, treated with a **black oxide or zinc plating** to prevent rust and corrosion in the harsh, saltwater environments where these motors operate, thereby extending the lifespan of critical components and reducing the risk of catastrophic failure. The bolts feature **fine-threaded, metric specifications** that align perfectly with the threaded holes in Evinrude/Johnson OMC engines, ensuring a snug, vibration-resistant fit that maintains engine alignment and power output under heavy loads. Whether used for routine maintenance, engine rebuilds, or aftermarket modifications, this bolt set is a critical component for anyone seeking to restore or enhance the performance of their outboard motor. The **unique part number 318573** indicates that this is a specialized, OEM-approved assembly, meaning it is compatible with a wide range of Evinrude/Johnson models, including but not limited to the E-TEC, E-TEC HP, and E-TEC XP series, as well as older Johnson outboards that require OMC-compliant fasteners. By investing in this bolt set, boat owners and mechanics can ensure that their engines remain in peak condition, free from the wear and tear caused by inferior or mismatched hardware, ultimately leading to smoother operation, greater fuel efficiency, and fewer costly repairs over time.
### **Pros and Cons of buying a Evinrude/Johnson OMC 318573 (Bolt-Freight) Outboard Motor**
The **Evinrude/Johnson OMC 318573** is a **4-stroke, 150 horsepower** outboard motor from the **Bolt-Freight** series, designed for mid-sized boats (typically 16 22 feet). Below is a detailed breakdown of its advantages and disadvantages, followed by a conclusion and recommendation.
---
### **Pros**
1. **Reliable 4-Stroke Engine**
- The **4-stroke design** offers better fuel efficiency, lower emissions, and reduced maintenance compared to 2-strokes. It s also quieter and produces less vibration.
- The **Evinrude/Johnson 4-stroke engines** are known for durability, with many models lasting **10,000 hours** with proper maintenance.
2. **Good Power-to-Weight Ratio**
- At **150 HP**, this motor provides sufficient power for **planing boats** (e.g., bass boats, center consoles, or runabouts) without excessive fuel consumption.
- The **Bolt-Freight series** is designed for **frequent use and heavy-duty applications**, making it suitable for fishing, cruising, and towing small trailers.
3. **Lower Operating Costs**
- **4-stroke engines** consume less fuel than equivalent 2-strokes, reducing long-term expenses.
- **Less oil consumption** and **fewer moving parts** mean lower maintenance costs over time.
4. **Evinrude/Johnson Brand Reputation**
- **Evinrude/Johnson (now part of OMC)** has a long history of producing **reliable outboards**, with strong aftermarket support.
- **Dealer networks** are widespread, making parts and service accessible.
5. **Versatile Mounting Options**
- The **Bolt-Freight series** is designed for **direct mount or bracket mount**, offering flexibility for different boat types.
- **Universal compatibility** with many aftermarket parts and upgrades.
6. **Lower Initial Cost Compared to Larger Engines**
- At **150 HP**, it s more affordable than **200 HP** outboards while still providing strong performance for mid-sized boats.
7. **Fuel Injection for Better Performance**
- Modern **Evinrude/Johnson 4-strokes** use **fuel injection**, improving throttle response, power delivery, and reliability compared to carbureted older models.
8. **Good for Fishing & Recreational Use**
- The **150 HP** range is ideal for **bass boats, center consoles, and runabouts**, offering enough power for planing while remaining manageable for single-engine operation.
---
### **Cons**
1. **Higher Initial Purchase Price Than 2-Strokes**
- **4-stroke outboards** are generally **more expensive upfront** than equivalent 2-stroke models (though they save money long-term).
- Used **Bolt-Freight 318573** models may still be priced higher than older 2-stroke alternatives.
2. **Heavier Than Some 2-Stroke Alternatives**
- **4-stroke engines** are **bulkier and heavier**, which can affect **boat handling and fuel efficiency** if the boat wasn t originally designed for a heavy engine.
- May require **reinforced transom or mounting hardware** for some boats.
3. **Limited High-Speed Performance Compared to Larger Engines**
- At **150 HP**, it s **not as fast as 200 HP outboards** and may struggle with **heavily loaded boats** (e.g., large trailers, heavy fishing gear).
- **Top-end speed** will be lower than what a **200 HP engine** could achieve.
4. **Maintenance Still Required (Despite Being 4-Stroke)**
- While **less frequent than 2-strokes**, **4-stroke engines** still need:- **Regular oil changes** (every **50 100 hours**, depending on use).
- **Spark plug replacements** (every **100 200 hours**).
- **Fuel filter and strainer maintenance**.
- **Coolant system checks** (especially in **hot climates**).
- **Neglecting maintenance** can lead to **expensive repairs** (e.g., **water pump failure, cylinder head issues**).
5. **Potential for Higher Repair Costs Than Smaller Engines**
- **150 HP is not the smallest 4-stroke**, so **labor and part costs** for repairs may be higher than on **smaller outboards** (e.g., **50 100 HP**).
- **Common issues** (e.g., **exhaust manifold leaks, fuel pump failures**) can be costly if not addressed early.
6. **Fuel Efficiency Varies by Load & Conditions**
- While **better than 2-strokes**, **fuel economy** still depends on:- **Boat weight & design** (displacement vs. planing).
- **Operating conditions** (waves, wind, load).
- **Maintenance level** (clogged filters, old fuel).
- **Not as efficient as diesel outboards** for long cruising.
7. **Limited Aftermarket Support Compared to Yamaha/Mercury**
- While **OMC (Evinrude/Johnson) has a strong dealer network**, **aftermarket parts and upgrades** (e.g., **exhaust, fuel systems, performance chips**) are **less common** than for **Yamaha or Mercury**.
- **Tuning options** (e.g., **ECU remapping**) are **more limited** than on some competitors.
8. **Potential for Overheating in Heavy Use**
- **150 HP engines** can **overheat** if:- **Cooling system is clogged** (old water, debris).
- **Running at high RPMs for extended periods**.
- **Boat is heavily loaded** (e.g., towing, heavy fishing gear).
- **Regular cooling system flushes** are recommended.
---
### **Conclusion**
The **Evinrude/Johnson OMC 318573 (Bolt-Freight) 150 HP** is a **solid mid-range 4-stroke outboard** that excels in **reliability, fuel efficiency, and low maintenance** compared to older 2-stroke engines. It s well-suited for **fishing boats, center consoles, and runabouts** where **durability and moderate power** are needed.
However, it **lacks the raw speed and high-end performance** of **larger 200 HP outboards** and may **struggle with heavily loaded boats**. While **more expensive upfront than a 2-stroke**, it **saves money long-term** due to **better fuel economy and lower maintenance costs**.
**Best for:**- **Owners who prioritize reliability and fuel efficiency** over raw speed.
- **Fishing enthusiasts** who need **consistent power** for planing.
- **Boats in the 16 22 ft range** that require **150 HP for comfortable cruising**.
- **Those who want a low-maintenance engine** for **weekend and recreational use**.
**Not ideal for:**- **Boaters who need extreme speed** (e.g., wakeboarding, high-performance racing).
- **Owners of very heavy boats** (e.g., large trailers, heavily loaded fishing rigs).
- **Those who prefer extensive aftermarket tuning options** (Yamaha/Mercury have more).
- **Budget-conscious buyers who can t afford the initial cost** (though long-term savings apply).
---
### **Final Recommendation**
**Buy the Evinrude/Johnson OMC 318573 if:**You need a **reliable, fuel-efficient 4-stroke** for **fishing or recreational boating**.
Your boat is **16 22 ft and requires 150 HP for planing**.
You **prioritize longevity and lower long-term costs** over raw power.
You **have access to OMC dealer support** for maintenance and repairs.
**Consider alternatives if:**You need **more power (200 HP)** for speed or heavy loads.
You prefer **more aftermarket tuning options** (Yamaha EFI or Mercury Verado may be better).
You re on a **tight budget** and can find a **well-maintained used 2-stroke** (though not recommended for new buyers due to emissions and maintenance issues).
Your boat is **very heavy or heavily loaded**, and you need **extra power**.
**Best Used vs. New Consideration:**- **New:** If you want **full warranty coverage** and **latest technology**, a **new or lightly used model** is ideal.
- **Used (Well-Maintained):** If you **inspect thoroughly** (check **oil changes, cooling system, spark plugs, and exhaust**) and **get a pre-purchase inspection**, a **used Bolt-Freight 318573** can be a **great bargain**.
**Final Verdict
Details:
Parts are new, old stock. Part location: Box #15.
specifications ouboaen:
- for makes: Omc
- brand: Brp Evinrude/johnson
- mpn: 318573
- part type: Bolt
- country of origin: United States
general ouboaen:
- Boat Parts > Outboard Engines Components > Other
- condition: New other see details
offer ouboaen:
- availability: In Stock
- sold: 0
- started: May 7, 2026
- quantity: 1
- options: Ship-to-home
payments ouboaen:
- other
- wallet: Apple-pay
- credit card: Mastercard
returns ouboaen:
- paid by: Seller
- policy: Returns Accepted
- time: 30 Days
shipping ouboaen:
- transit: 2-6 Days
- cost: $0.00
- type: Fixed
- class: Standard
- service: Standard
seller ouboaen:
- city: Annapolis, Maryland
- rating: 100.0%
- # reviews: 5238
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