HONDA 90200-10120-0A Flange Bolt Engine Frame ATC90

( Manufacturer Part Number: 90200-10120-0A ), ( Part Type: Flange Bolt Engine Frame )

Review HONDA Oem Original Flange Bolt Engine Frame fits ATC110 ATC125M XL175

The **Honda 90200-10120-0A** is a high-performance, precision-engineered **engine frame flange bolt** designed exclusively for Honda s lineup of **ATC110, ATC90, ATC125M, and XL175** outboard motors, ensuring optimal compatibility and reliability for both marine and recreational applications. Crafted from **high-grade, heat-treated steel**, this bolt is engineered to withstand the rigorous demands of high-speed operation, frequent exposure to saltwater corrosion, and the constant stress of engine vibrations, making it an indispensable component for maintaining structural integrity and performance in demanding marine environments. The **A-grade threading** and **precision-machined fit** guarantee a secure, leak-proof connection between the engine frame and the lower unit, preventing premature wear, oil leaks, or catastrophic failure critical factors for long-term durability and safety. Whether installed in a **fishing vessel, personal watercraft, or utility boat**, this bolt ensures seamless power transmission and minimizes the risk of mechanical failure, allowing operators to focus on performance without compromise. Its **universal fitment** across multiple Honda outboard models makes it a versatile and cost-effective solution for both original equipment replacement and aftermarket upgrades, reinforcing Honda s reputation for dependable engineering in the marine industry.

### **Pros and Cons of Buying a Honda 90200-10120-0A (ATC110, ATC90, ATC125M, XL175 Flange Bolt Engine Frame)**

This part is a **rear engine mount (flange bolt type)** used in various Honda models, including the **ATC110, ATC90, ATC125M, and XL175** (and some other small ATVs). Below is a detailed breakdown of its advantages and disadvantages, followed by a conclusion and recommendation.

---

### **Pros**

1. **Compatibility with Multiple Models**

- The **90200-10120-0A** is designed to fit several Honda ATVs, making it a versatile replacement part. If you own or work on multiple models (ATC110, ATC90, ATC125M, XL175), this part can be used across them, reducing the need for multiple spares.

2. **Durability and Reliability**

- Honda is known for producing **high-quality, long-lasting components**, and engine mounts are no exception. This part is built to withstand vibrations and stress, reducing the risk of premature failure.

- The **flange bolt design** ensures a secure attachment to the engine and frame, preventing loosening during operation.

3. **Ease of Installation**

- Replacing an engine mount is a relatively straightforward process, especially if you have basic mechanical skills. The **bolt pattern is standard**, and most mechanics or DIYers can install it without specialized tools.

- Honda provides **clear service manuals** that guide the replacement procedure, reducing the chance of mistakes.

4. **Prevents Engine Movement and Damage**

- A failing engine mount can cause **excessive engine movement**, leading to **damage to the exhaust, fuel lines, or electrical connections**. Replacing it with an **OEM or high-quality aftermarket part** ensures proper alignment and stability.

- Reduces **vibration transfer**, which can wear out other components over time.

5. **Cost-Effective Compared to Engine Replacement**

- If an engine mount fails, **ignoring it can lead to catastrophic engine damage**, which is far more expensive to repair than simply replacing the mount.

- The **cost of this part is relatively low** (typically under $50 for an OEM or aftermarket equivalent), making it a **wise preventive maintenance choice**.

6. **Aftermarket Availability**

- While Honda s OEM part is reliable, **aftermarket alternatives** (from brands like **Motocross Parts, Power Sport Parts, or eBay sellers**) are often **cheaper** without sacrificing quality.

- Some aftermarket versions may even include **stainless steel bolts** for added durability.

7. **Prevents Safety Hazards**

- A loose or broken engine mount can **disconnect the engine from the transmission**, causing **sudden power loss** while riding this is a **serious safety risk**.

- Ensures the **engine stays properly seated**, reducing the chance of **accidents due to mechanical failure**.

---

### **Cons**

1. **Potential for Counterfeit or Low-Quality Parts**

- The **aftermarket market for Honda parts is flooded with counterfeit or substandard replicas**, especially on platforms like **eBay, Amazon, or Alibaba**.

- **Risk of purchasing a fake part** that fails quickly, leading to **recurring problems and wasted money**.

- **Solution:** Always buy from **authorized dealers, reputable aftermarket suppliers (like **Motocross Parts, Power Sport Parts, or local Honda dealerships**), or verified sellers with **positive reviews**.

2. **Wear and Tear Over Time**

- Even **OEM engine mounts degrade** with **age, extreme vibrations, or off-road abuse**. If the original mount was **already worn**, replacing it with a new one may not solve the underlying issue (e.g., **frame damage, improper installation**).

- **Solution:** Inspect the **mounting points on the engine and frame** for **rust, cracks, or bent bolts** before installation.

3. **Installation Errors Can Void Warranty (If Applicable)**

- If you re **not experienced**, improper tightening of bolts can **strip threads** or **damage the engine or frame**.

- **Solution:** Follow the **torque specifications** (usually **25-30 ft-lbs** for these bolts) and **consult a mechanic** if unsure.

4. **Limited Lifespan in Harsh Conditions**

- In **extreme off-road conditions** (rock crawling, heavy mud, frequent jumps), even a **high-quality mount** may wear out **faster than expected**.

- **Solution:** Consider **reinforced aftermarket mounts** (e.g., **stainless steel or reinforced rubber**) if you use the ATV aggressively.

5. **Replacement May Require Additional Work**

- If the **original mount was damaged beyond repair**, you may need to **clean rust, replace bolts, or check for frame damage** before installing the new one.

- In some cases, **minor frame modifications** (e.g., **drilling new holes**) may be needed if the old mount pattern is no longer usable.

6. **Price Variability in Aftermarket Parts**

- While aftermarket parts are **cheaper than OEM**, prices can **vary widely** depending on the seller.

- **Cheap knockoffs** may fail quickly, while **mid-range aftermarket brands** (e.g., **Motocross Parts, Power Sport Parts**) offer a **good balance of price and quality**.

- **Solution:** Research before buying check **Amazon reviews, eBay feedback, or forums** (like **ATV.com, Honda forums**) for recommendations.

7. **Not a Permanent Fix for Underlying Issues**

- If the **engine or frame has structural damage** (e.g., **bent mounts, cracked frame rails**), replacing just the mount **won t solve the problem**.

- **Solution:** Inspect the **entire engine and frame assembly** during replacement to ensure no **hidden damage exists**.

---

### **Conclusion**

The **Honda 90200-10120-0A engine mount (flange bolt type)** is a **critical but often overlooked part** that plays a **vital role in engine stability, safety, and longevity**. Its **main advantages** include **reliability, ease of installation, cost-effectiveness, and compatibility with multiple Honda ATVs**, making it a **smart investment for preventive maintenance**.

However, **potential downsides** such as **counterfeit parts, wear over time, and installation risks** must be **mitigated through careful sourcing and proper installation techniques**. If you **purchase from a trusted supplier, follow installation guidelines, and inspect the surrounding components**, this part will **extend the life of your engine and prevent costly failures**.

For **most riders**, replacing a **failing engine mount is a straightforward and necessary repair** rather than an optional upgrade. **Ignoring it can lead to far more expensive engine damage**, so **addressing it promptly is the best course of action**.

---

### **Recommendation**

1. **Buy from a Trusted Source**

- **Best option:** Purchase from an **authorized Honda dealer** or a **reputable aftermarket supplier** (e.g., **Motocross Parts, Power Sport Parts, or local ATV shops**).

- **Budget option:** Check **Amazon, eBay, or RockAuto** for **verified sellers with high ratings**, but **avoid suspiciously cheap listings** (they re likely counterfeit).

- **Avoid:** Random sellers on **Facebook Marketplace, Craigslist, or unknown e-commerce sites** without reviews.

2. **Inspect Before Installing**

- Check the **engine and frame mounting points** for **rust, cracks, or bent bolts**.

- If the **original mount was damaged**, consider **cleaning threads and using anti-seize compound** to prevent future issues.

3. **Follow Proper Installation Steps**

- **Remove the old mount carefully** to avoid damaging the **engine or frame**.

- **Tighten bolts in a crisscross pattern** to ensure even pressure.

- **Use the correct torque specification** (typically **25-30 ft-lbs** for these bolts).

- **Recheck bolts after 50-100 miles** to ensure they haven t loosened.

4. **Consider Upgrading if Needed**

- If you **ride aggressively**, look for **reinforced aftermarket mounts** (e.g., **stainless steel or high-durability rubber**).

- Some brands offer **universal fits** that may work on **other Honda models** if you plan to upgrade later.

5. **Prevent Future Issues**

- **Regularly inspect engine mounts** during **oil changes or general maintenance**.

- **Listen for unusual vibrations** if you feel **excessive movement**, have it checked immediately.

- **Store your ATV properly** to prevent **rust and wear** on mounts.

### **Final Verdict**

**Buying and replacing the Honda 90200-10120-0A engine mount is a worthwhile and necessary repair** for maintaining **engine stability, safety, and longevity**. By **choosing a high-quality part, installing it correctly, and performing regular checks**, you can **prevent costly engine damage and

Details:

Free shipping in the US. These are the two rear flange bolts that hold engine to frame taken from a 1983 ATC 110 The straight and nuts thread on fine This may fit other years model's There included in this listing each one is pictured, but they not shown together.

part #: 90200101200a prices

• $25.00-$213.57

specifications cyclevintagee:

• for models: Atc110, Atc125m, Xl175
• for makes: Honda
• mpn: 90200-10120-0a
• part type: Flange Bolt Engine Frame

general cyclevintagee:

• condition: Used
• Parts Accessories > Motorcycle Scooter Parts Accessories > Other Motorcycle Scooter Parts Accessories

shipping cyclevintagee:

• carrier: USPS
• service: USPS Ground Advantage
• class: Standard
• transit: 4-10 Days
• type: Fixed
• cost: $0.00

offer cyclevintagee:

• options: Ship-to-home
• quantity: 1
• started: May 17, 2026
• availability: In Stock
• sold: 0

returns cyclevintagee:

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

payments cyclevintagee:

• other
• credit card: Mastercard
• wallet: Apple-pay

seller cyclevintagee:

• city: West Chester, Pennsylvania
• # reviews: 1935
• rating: 99.9%

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