AUTOMOTO8 M551-A033 Starter Relay Solenoid 4SV-81940-00-00 4SV-81940-12-00
fits make: Yamaha. year: 2007–2008.
( Brand: Automoto8 ), ( Manufacturer Part Number: M551-A033 ), ( Part Type: Starter Solenoid ), ( Money Back Or Item Exchange: Yes, Within 180 Days After Receiving Item ), ( Warranty: 1 Year )
Review AUTOMOTO8 Starter Relay Solenoid Yamaha Oem Part fits 2007–2008
The **Automoto8 M551-A033 Starter Relay Solenoid** is a high-performance, precision-engineered replacement component specifically designed to restore optimal functionality to Yamaha outboard motors featuring the **4SV-81940-00-00** and **4SV-81940-12-00** starter solenoid assemblies, as well as compatible models from the **2007 and 2008** production years. Crafted with meticulous attention to detail, this solenoid is built to meet or exceed OEM specifications, ensuring seamless integration with your engine s electrical system while delivering reliable ignition and starter engagement. The M551-A033 is constructed from durable, corrosion-resistant materials, including high-grade metal contacts and a robust coil winding system, which are engineered to withstand the demanding conditions of marine environments from saltwater corrosion to extreme temperature fluctuations. Its compact yet sturdy design ensures a secure fit within the engine s starter housing, minimizing clearance issues and preventing premature wear. The internal spring mechanism is calibrated for precise engagement, providing instant and consistent power delivery to the starter motor, reducing the risk of misfires or delayed cranking that can occur with worn or low-quality replacements. Whether you re preparing for a day on the water or restoring an older Yamaha outboard, this solenoid serves as an essential upgrade, enhancing both performance and longevity. Backed by Automoto8 s commitment to quality and compatibility, this part is an ideal solution for mechanics and DIY enthusiasts seeking a dependable, long-lasting replacement that aligns perfectly with your engine s original specifications.
**Pros and Cons of buying a Automoto8 M551-A033 Starter Relay Solenoid for Yamaha 4SV-81940-00-00 / 4SV-81940-12-00 (2007-2008 Models)**
### **Pros**
1. **Compatibility** The Automoto8 M551-A033 is specifically designed to fit Yamaha 4SV starter systems, including the models 4SV-81940-00-00 and 4SV-81940-12-00, as well as the 2007-2008 variants. This reduces the risk of purchasing an incorrect part that won t function properly.
2. **Quality Construction** Automoto8 is a reputable brand known for producing reliable automotive and marine electrical components. The M551-A033 appears to be built with durable materials, ensuring longevity and consistent performance.
3. **Direct Replacement** This part is a direct drop-in replacement for the original Yamaha starter relay/solenoid, meaning no modifications or additional wiring are required. This simplifies installation and reduces labor costs.
4. **Reliability in Performance** A properly functioning starter relay/solenoid ensures smooth engine cranking, reducing the risk of starter motor failure or intermittent starting issues. This can prevent costly repairs down the line.
5. **Warranty and Support** Automoto8 typically offers warranties on their products, providing some assurance against defects. Additionally, the brand has a track record of customer support, which can be helpful if issues arise.
6. **Cost-Effective Alternative** Compared to purchasing an OEM (original equipment manufacturer) part from Yamaha, this aftermarket option is often more affordable while maintaining similar performance standards.
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### **Cons**
1. **Potential Quality Variations** While Automoto8 is a trusted brand, aftermarket parts can sometimes vary slightly in quality compared to OEM components. Some users report minor differences in durability or fit, though these are usually minor.
2. **Limited Availability of OEM Parts** If the OEM relay/solenoid is still available, some buyers may prefer it for absolute reliability, even if it comes at a higher cost. However, for most consumers, the aftermarket option provides a practical balance.
3. **Installation Complexity (If DIY)** While the installation is straightforward for most mechanics, those without experience may find it challenging, especially if the starter motor or wiring harness needs adjustment. Professional installation may be required to ensure proper function.
4. **Compatibility with Modified Systems** If the vehicle has undergone modifications (e.g., upgraded starters, custom wiring, or aftermarket electrical systems), the Automoto8 part may not integrate perfectly. Always verify compatibility with any additional components.
5. **Counterfeit Concerns** As with any aftermarket part, there is a risk of purchasing a counterfeit or low-quality imitation, particularly if buying from untrusted sellers. Stick to authorized dealers or well-reviewed retailers to mitigate this risk.
6. **No Long-Term Data on Specific Models** While the part is listed as compatible, long-term performance data specific to the 2007-2008 Yamaha 4SV models may be limited compared to more widely used applications. User reviews can help gauge real-world reliability.
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### **Conclusion**
The Automoto8 M551-A033 starter relay/solenoid is a strong choice for Yamaha 4SV-81940-00-00 and 4SV-81940-12-00 owners (2007-2008) seeking a reliable, cost-effective replacement. Its direct compatibility, durability, and ease of installation outweigh the minor drawbacks, such as potential quality variations or installation challenges for inexperienced DIYers. For most users, this part will provide a dependable solution to starting issues without the premium price of OEM components.
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### **Recommendation**
- **Buy from a trusted source** (e.g., Amazon, eBay with seller ratings, or a Yamaha marine parts dealer) to avoid counterfeit or low-quality products.
- **Verify fitment** by checking user reviews or consulting with a Yamaha dealer if unsure about compatibility with your specific model.
- **Consider professional installation** if you lack experience with electrical or starter system repairs to ensure proper function.
- **Pair with a high-quality starter motor** if the issue persists, as a faulty relay/solenoid can sometimes mask underlying starter problems.
- **Monitor performance** after installation. If the part fails prematurely, contact the seller or manufacturer for a replacement under warranty.
For most Yamaha 4SV owners facing starter relay/solenoid failure, the Automoto8 M551-A033 is a practical and reliable upgrade.
Details:
Even with the ignition OFF!Before pulling an old solenoid off a Motorcycle, you can test it.Applying 12 volts to two wires inside plastic connector, is polarity sensitive.Applying in wrong doesn't hurt solenoid, it simply won't work.When are applied small correctly:If starter cranks, battery and all good.If makes audible sound but your crank, good. Important Notes. We respond within 48h with solution. Claim Process.
WARRANTY Coverage. ULTRA-FAST SHIPPING Because you should't wait. Required: Proof of purchase clear defect photos/video. 90-365 Day Coverage varies by product - see listing details.
Item shows signs of use/wear. Return doesn't match the original product condition missing/damaged.
part #: m551a033 price
- $16.99
specifications electricacompone:
- for makes: Yamaha
- for years: 2007-2008
- brand: Automoto8
- mpn: M551-a033
- part type: Starter Solenoid
- money back or item exchange: Yes, Within 180 Days After Receiving Item
- warranty: 1 Year
seller electricacompone:
- rating: 99.3%
- # reviews: 4065
- city: Los Angeles, California
shipping electricacompone:
- type: Fixed
- transit: 9-19 Days
- class: Economy
- service: Economy
- cost: $0.00
payments electricacompone:
- credit card: Visa
- other
- wallet: Paypal
returns electricacompone:
- policy: Returns Accepted
- time: 60 Days
- paid by: Seller
offer electricacompone:
- best offers: True
- availability: In Stock
- sold: 0
- quantity: 5
- started: May 5, 2026
- options: Ship-to-home
general electricacompone:
- condition: New
- ATV, Side-by-Side UTV Parts Accessories > Electrical Ignition Components > Other Electrical Ignition Components
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