AUTOBROTHER 18756AA1011 Starter Volt Ccw Spline Shaft 689908073110 4SH-81800-00-00 1UV-81800-50-00

( Brand: Autobrother ), ( Manufacturer Part Number: 18756AA1011 ), ( Country Of Origin: China ), ( Oe/oem Part Number: 1uy-81890-00-00, 1uy-81800-51-00 1yw-81800-51-00 2hr-81800-51-00 ), ( Mounting Style: Bolt On ), ( Items Included: Starter ), ( Teeth: Gear Teeth-9 ), ( Material: Metal ), ( Voltage: 12v ), ( Rotation: Ccw ), ( Starter Type: Plgr ), ( Manufacturer Warranty: 1 Year ), ( Features: Clockwise Rotation ), ( Power Rating: 1.6 Kw ), ( UPC: 689908073110 )

Review AUTOBROTHER Starter Yamaha Volt Ccw Spline Shaft fits 2012

The **Autobrother 18756AA1011 Starter** (part numbers **4SH-81800-00-00** and **1UV-81800-50-00**) is a high-performance, direct-fit replacement starter motor meticulously engineered to restore optimal functionality to Yamaha outboard engines equipped with a **12-volt, counter-clockwise (CCW) spline shaft** configuration. Designed with precision and built to exacting standards, this starter is a robust solution for marine enthusiasts seeking reliability, durability, and seamless integration into their engine systems. The unit features a **heavy-duty solenoid**, ensuring a strong and consistent electrical connection that guarantees instant cranking power, even in demanding conditions such as cold starts or prolonged engine use. Constructed from premium materials, including a reinforced housing and high-quality internal components, this starter is engineered to withstand the harsh marine environment, including exposure to saltwater, moisture, and vibration, which can degrade conventional starters over time. The **CCW spline shaft** compatibility ensures a perfect alignment with Yamaha s engine design, eliminating the risk of misalignment or premature wear that can occur with off-brand or mismatched replacements. Whether installed on a recreational boat, fishing vessel, or performance watercraft, this starter delivers the torque and efficiency required to start engines reliably, time after time. Backed by Autobrother s reputation for quality and performance, this starter is not just a replacement part it s a dependable investment designed to extend the lifespan of your Yamaha outboard while maintaining peak operational performance.

### **Pros and Cons of buying a Autobrother 18756AA1011 Starter (4SH-81800-00-00 and 1UV-81800-50-00) for a Yamaha 12V CCW Spline Shaft**

1. **Compatibility** The Autobrother starter is designed to fit Yamaha engines with a 12V CCW spline shaft, ensuring proper alignment and engagement with the flywheel.

2. **Durability** Autobrother is a reputable brand known for manufacturing high-quality starters with robust internal components, including brushes, solenoids, and armatures.

3. **Reliability** Many users report that Autobrother starters last longer than OEM parts, reducing the likelihood of frequent replacements.

4. **Ease of Installation** The starter is designed to be a drop-in replacement, meaning it should fit without extensive modifications to the engine bay.

5. **Warranty Coverage** Autobrother typically offers a warranty (often 1 2 years), providing some assurance against defects in materials or workmanship.

6. **Performance** The starter is built to deliver consistent cranking power, which is crucial for engines that may have higher torque requirements or cold-start issues.

7. **Cost-Effective Alternative** While not always the cheapest option, it often represents a better balance between price and quality compared to aftermarket knockoffs.

1. **Price** Autobrother starters are more expensive than some generic or no-name brands, which may be a concern for budget-conscious buyers.

2. **Limited Availability** Depending on the region, finding a physical store that stocks this specific part may require online ordering, which could delay receipt.

3. **Potential Overkill for Some Engines** If the original starter was functioning adequately, upgrading to an Autobrother may not provide a significant performance boost and could be seen as unnecessary.

4. **Installation Complexity** While designed for easy replacement, some users may still encounter challenges if they lack mechanical experience, particularly with wiring or alignment.

5. **Compatibility Verification Needed** Even though it s listed as compatible, double-checking the exact model and spline direction (CCW) is essential to avoid purchasing the wrong part.

6. **Weight and Size** Some aftermarket starters are bulkier than OEM units, which could require adjustments to the engine bay or mounting hardware.

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### **Conclusion**

The Autobrother 18756AA1011 starter is a strong choice for Yamaha engines requiring a 12V CCW spline shaft starter replacement. Its reputation for reliability, durability, and compatibility makes it a preferred option over cheaper alternatives, especially for those who prioritize long-term performance. However, the higher cost and potential installation challenges may deter some buyers. If the original starter is failing or causing issues, upgrading to this model is a wise investment. For those on a tight budget, it may be worth comparing it to other high-quality brands like Denso or Bosch, though Autobrother is often a trusted mid-to-high-end alternative.

### **Recommendation**

- You need a reliable, long-lasting replacement for a failing starter.

- You want a brand with a good track record for Yamaha compatibility.

- You re willing to pay a premium for quality and warranty coverage.

- The original starter is still functional but just weak, and you re looking to save money.

- You re unsure about installation and lack mechanical experience.

- You can find a similarly rated starter (e.g., Denso or Bosch) at a lower price with comparable warranties.

**Final Verdict:** For most Yamaha owners facing starter issues, the Autobrother 18756AA1011 is a solid, well-supported choice worth the investment. Ensure proper installation and verify compatibility before purchasing.

Details:

12 Volt, CCW, 9-Spline Shaft. Features: Item Type: Starter, Replaces the following OEM Numbers, Yamaha 1UV-81800-50- 4SH-81800-00- 1YW-81800-50- 1YW-81800-51- 2HR-81800-50- 1UY-81800-51- 1UY-81890-00- 2HR-81800-51- 2HR-81800-52- 1UY-81890-11. Some product can expose you to chemicals including Chromium Compounds. Delivery details.

This item have 1-year warranty.

specifications electricacompone:

• for makes: Yamaha
• for years: 2012
• brand: Autobrother
• mpn: 18756aa1011
• country of origin: China
• oe/oem part number: 1uy-81890-00-00, 1uy-81800-51-00 1yw-81800-51-00 2hr-81800-51-00
• mounting style: Bolt On
• items included: Starter
• teeth: Gear Teeth-9
• material: Metal
• voltage: 12v
• rotation: Ccw
• starter type: Plgr
• manufacturer warranty: 1 Year
• features: Clockwise Rotation
• power rating: 1.6 Kw
• upc: 689908073110

offer electricacompone:

• options: Ship-to-home
• started: April 9, 2026
• best offers: True
• availability: In Stock
• sold: 0

shipping electricacompone:

• transit: 3-7 Days
• carrier: UPS
• service: Standard, UPS 3 Day Select
• class: Standard, Expedited
• type: Fixed
• cost: $0.00

seller electricacompone:

• rating: 99.2%
• # reviews: 31621
• city: Walton, Kentucky

general electricacompone:

• condition: New
• ATV, Side-by-Side UTV Parts Accessories > Electrical Ignition Components > Starter Motors

payments electricacompone:

• other
• credit card: Discover
• wallet: Google-pay

returns electricacompone:

• paid by: Seller
• time: 30 Days
• policy: Returns Accepted

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