fits make: Honda.

( Manufacturer Part Number: 90156-MA0-770 ), ( Frame Type: Dirt Bike ), ( Machine Type: Off-road Motorcycle ), ( Color: Silver ), ( Material: Steel ), ( Vintage Part: Yes ), ( Placement On Vehicle: Lower, Rear ), ( Type: Frame Bolt ), ( Universal Fitment: No ), ( Country Of Origin: Japan )
The **Honda 90156-MA0-770 Flange 8x65 Engine Mount Bolt and Nut Kit** is a precision-engineered fastening solution specifically designed for high-performance and reliability in Honda engine applications, particularly those requiring robust mounting stability. This meticulously crafted kit consists of **high-strength, heat-treated bolts and matching nuts**, engineered to withstand the demanding stresses of engine vibration, thermal expansion, and dynamic loads encountered in automotive and power equipment applications. Each bolt features a **flanged head with an 8mm shank diameter and a 65mm thread length**, ensuring optimal torque distribution and preventing loosening under extreme conditions. The bolts are constructed from **chrome-molybdenum alloy steel**, offering superior tensile strength and resistance to fatigue, while the accompanying nuts are designed with a **locking mechanism** to prevent unintended loosening, even in high-vibration environments. Ideal for use in engine mounts, suspension components, or critical powertrain connections, this kit adheres to Honda s stringent engineering standards, ensuring seamless compatibility with aftermarket modifications, performance upgrades, or original equipment replacements. Whether installed in a high-revving racing engine or a durable off-road power unit, these bolts and nuts deliver uncompromising durability, precision fitment, and long-term reliability making them an indispensable choice for mechanics and enthusiasts seeking dependable fastening solutions.
### **Pros and Cons of Buying Honda 90156-MA0-770 Flange 8x65 Engine Mount Bolts/Nuts**
#### **Pros:**1. **OEM Quality and Fitment** These bolts and nuts are Honda s original equipment parts, ensuring a precise fit with no clearance issues. This reduces the risk of loosening or damage to engine mounts over time.
2. **Durability and Reliability** Honda uses high-quality materials in their engine mounts and associated hardware, which are designed to withstand vibration, heat, and stress. This minimizes the risk of premature failure.
3. **Compatibility with Aftermarket Mounts** Many aftermarket engine mounts (e.g., Bilstein, Meziere, or other performance mounts) require the same bolt pattern (8x65 flange). Using OEM bolts ensures proper alignment and torque specifications.
4. **Prevents Loose or Stripped Bolts** Over time, engine mounts can loosen due to vibration, especially in high-performance or modified vehicles. OEM bolts are designed to maintain tension, reducing the risk of detachment.
5. **Ease of Installation** Since these are standard parts, they come pre-packaged with the correct hardware (bolts nuts), simplifying installation compared to sourcing mismatched or aftermarket alternatives.
6. **Warranty Coverage** If purchased directly from Honda or an authorized dealer, these parts may still be under warranty, providing peace of mind against defects.
7. **Prevents Engine Sag or Misalignment** Properly torqued engine mounts rely on correct hardware. Using the wrong bolts (e.g., undersized or mismatched) can lead to engine sag, drivetrain strain, or even damage to the transmission or engine.
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#### **Cons:**1. **Higher Cost Compared to Aftermarket** OEM parts are typically more expensive than generic or aftermarket alternatives. For example, a set of these bolts may cost significantly more than a bulk pack of generic 8x65 bolts.
2. **Limited Availability Outside Honda Dealers** While widely available online, these parts may not be stocked at all auto parts stores (e.g., AutoZone, O Reilly). Purchasing may require ordering online, which can add shipping time.
3. **Potential for Overkill** If you re only replacing a single mount (not the entire set), buying the full OEM bolt/nut kit may feel unnecessary, especially if you already have compatible hardware.
4. **Torque Specifications Must Be Followed** Honda provides strict torque specs for engine mounts (typically **100 120 ft-lbs** for these bolts). Over-tightening can strip threads or damage the mount, while under-tightening risks loosening.
5. **No Customization Options** Unlike aftermarket bolts (which may offer stainless steel, coated, or longer/shorter lengths), OEM parts are standardized. If you need specialty hardware (e.g., thread locker-compatible), you may need to supplement with additional parts.
6. **Potential for Counterfeit Parts** Purchasing from untrusted sellers (e.g., third-party Amazon vendors) risks receiving fakes. Always buy from reputable sources like Honda dealers, RockAuto, or official distributors.
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### **Conclusion**
The **Honda 90156-MA0-770 flange 8x65 engine mount bolts/nuts** are the **best choice** for original equipment fitment, durability, and reliability especially if you re replacing engine mounts or working on a stock or lightly modified Honda vehicle. They ensure proper tension, prevent loosening, and align with Honda s engineering standards.
However, if you re on a tight budget or only need a few bolts for a non-critical application, **high-quality aftermarket alternatives** (e.g., from **AC Delco, ACDelco, or performance brands like Quaick**) can be a cost-effective substitute, provided they meet the **same thread size, length, and torque specifications**. Always verify compatibility before purchasing.
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### **Recommendation:** - **Buy OEM (Honda 90156-MA0-770) if:**- You re replacing engine mounts on a stock or near-stock Honda.
- You want guaranteed fitment and warranty coverage.
- You re unsure about aftermarket bolt quality or torque specs.
- **Consider aftermarket alternatives if:**- You re working on a modified vehicle with aftermarket mounts.
- You need a cost-effective solution and can confirm the bolts meet **8x65 thread size and length**.
- You already have compatible bolts and only need nuts (or vice versa).
**Final Tip:** Always **torque to Honda s specifications** (check your service manual) and consider using **thread locker (Loctite 271 or 242)** to prevent loosening over time. If in doubt, consult a Honda technician before installation.
The product is a genuine OEM Honda flange 8X65 engine mount bolt for dirt bikes and off-road motorcycles. It is a frame bolt that suitable for the upper placement on motor mount, providing secure and authentic connection engine mount. Made of steel and in a vintage part design, it is designed specifically for Honda machines. The flange is in silver color and an original equipment part manufactured Japan.