HONDA 07HMA-MR70200 Lock Nut Wrench

( Manufacturer Part Number: 07HMA-MR70200 ), ( Part Type: Lock Wrench )

Review HONDA Lock Nut Wrench

The **Honda 07HMA-MR70200 Lock Nut Wrench** is a precision-engineered tool specifically designed for Honda motorcycles, offering a reliable and efficient solution for handling stubborn lock nuts on critical components like the engine, transmission, or suspension. This high-quality wrench features a robust, heat-treated steel construction, ensuring durability and resistance to wear, even under the most demanding conditions. Its ergonomic design incorporates a deep, contoured handle that provides a secure, non-slip grip, allowing mechanics and riders to apply consistent torque without fatigue. The wrench s smooth, polished surface minimizes friction, making it easier to engage and disengage the lock nut, while its precise fit reduces the risk of slippage or damage to the surrounding hardware. Ideal for both professional garages and dedicated motorcycle enthusiasts, this wrench is a must-have for any Honda maintenance routine, ensuring secure and repeatable installations of components like the engine mount, swingarm, or rear subframe. Its compact yet sturdy build makes it a versatile addition to any toolkit, offering the confidence of a tight, reliable fit every time.

The **Honda 07HMA-MR70200 Lock Nut Wrench** is a specialized tool designed to remove the lock nut on Honda engines, particularly those with the **D13, D14, D15, D16, D17, and D18** series engines. Below is a detailed breakdown of its pros and cons, followed by a conclusion and recommendation.

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### **Pros of buying a Honda 07HMA-MR70200 Lock Nut Wrench**

1. **Engine-Specific Design**

The wrench is specifically engineered for Honda s **lock nut system**, which uses a **one-time-use locking mechanism** on the crankshaft pulley. This means it is the **only tool guaranteed to work** without damaging the nut or the engine components. Universal or generic tools may not fit properly or could strip the nut.

2. **Prevents Damage to the Nut**

Honda s lock nuts are designed to be removed **only once** after that, they must be replaced. Using the wrong tool can strip the nut, requiring a **crankshaft pulley replacement**, which is costly. This wrench ensures a clean removal without risking damage.

3. **Included with Some Honda Service Kits**

The wrench is often sold as part of **Honda s official crankshaft pulley replacement kits**, which include the pulley, nut, and gasket. Buying it separately ensures you have the correct tool if you re replacing the pulley yourself.

4. **Durable and Reliable**

Honda tools are generally well-built and designed for professional use. The wrench is made from **high-quality steel** and is built to last multiple uses (though Honda recommends replacing the nut after removal).

5. **Time-Saving for Mechanics**

For professional mechanics, this wrench **eliminates guesswork** no need to improvise with makeshift tools or risk damaging the engine. It speeds up the process of removing the lock nut.

6. **Widely Available**

The part is stocked by **Honda dealerships, auto parts stores (like RockAuto, Amazon, and local shops), and online retailers**. It is not a hard-to-find tool, making it accessible for DIYers.

7. **Part of Honda s Official Maintenance Protocol**

Honda recommends using this tool when servicing engines with these lock nuts. Using it aligns with **factory specifications**, reducing the risk of warranty issues if working on a newer model.

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### **Cons of buying a Honda 07HMA-MR70200 Lock Nut Wrench**

1. **Limited Use Case**

The wrench is **only useful for Honda engines with the specified lock nut system** (D13-D18 series). If you work on other brands (Toyota, Ford, etc.), this tool will be **completely useless**. This makes it a **niche purchase** unless you frequently work on these Honda models.

2. **Cost**

The wrench is **not cheap**, typically ranging between **$20 $40** depending on the seller. For a single-use tool (if following Honda s recommendation to replace the nut), some may find this an unnecessary expense if they only need it occasionally.

3. **One-Time-Use Nut Replacement Recommendation**

Honda **strongly recommends replacing the lock nut after removal**, even if it s not damaged. This means you ll need to buy a **new nut (part # 07HMA-MR70201)** separately, adding to the cost. Some may argue that this makes the wrench **more of a single-use tool** unless they plan to re-use the nut (which Honda discourages).

4. **Requires Proper Technique**

Removing the lock nut can be **physically demanding** it often requires **significant torque** and proper alignment. If not done correctly, the wrench can slip, damaging the nut or the engine components. This may require **additional tools (like a torque wrench or breaker bar)** for optimal use.

5. **Not a Universal Tool**

Unlike a **crankshaft pulley removal tool** that can be used on multiple engines, this wrench is **exclusive to Honda s lock nut system**. If you have a different engine, you ll need a different tool.

6. **Potential for Counterfeit or Low-Quality Copies**

Since this is a **popular Honda part**, there are **counterfeit versions** available, especially on platforms like eBay or Amazon. Buying from **unverified sellers** could result in a **poorly made, non-functional wrench**. Always purchase from **authorized dealers or reputable suppliers** to avoid this risk.

7. **Not Needed for All Honda Engines**

Not all Honda engines use this lock nut system. If you re working on **older models (pre-D13) or different series (like K-series, L-series, etc.)**, this wrench will be **irrelevant**. Always check your engine s specifications before purchasing.

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### **Conclusion**

The **Honda 07HMA-MR70200 Lock Nut Wrench** is a **specialized, high-quality tool** essential for safely removing the lock nut on Honda s D13-D18 engine series. It **prevents damage**, aligns with **factory recommendations**, and is **durable**, making it a **must-have for mechanics and serious DIYers** working on these engines.

However, its **limited use case, cost, and the requirement to replace the nut** mean it may not be worth it for **occasional users** or those working on non-Honda engines. If you frequently service these Honda models, the wrench is a **wise investment**. If not, the expense may not justify its single-purpose nature.

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### **Recommendation**

- You frequently work on **Honda D13-D18 engines** (e.g., CR-V, Civic, Accord, Odyssey, Pilot).

- You re **replacing the crankshaft pulley** and need the correct tool to avoid damaging the nut.

- You want to **follow Honda s official service procedures** to maintain warranty compliance.

- You re buying it as part of an **official Honda service kit** (which often includes the pulley and nut).

- You only work on **non-Honda engines** or older Honda models without this lock nut system.

- You re a **casual DIYer** who rarely needs to remove this nut.

- You re on a **tight budget** and can t justify the cost for occasional use.

- You re purchasing from an **unverified seller** (risk of counterfeit tools).

- If you decide to buy, **purchase from an authorized Honda dealer or a trusted auto parts retailer** (e.g., RockAuto, Amazon with verified sellers).

- **Replace the lock nut after removal** (Honda part # 07HMA-MR70201) to ensure proper sealing.

- If you re unsure whether your engine uses this system, **check the engine code** (e.g., D16Y8) or consult a **Honda service manual**.

For most **professional mechanics and dedicated Honda enthusiasts**, this wrench is **worth the investment**. For others, the cost and limited use may make it **less necessary**.

Details:

part #: 07hmamr70200 price

• $90.00

specifications cyclevintagee:

• for makes: Honda
• mpn: 07hma-mr70200
• part type: Lock Wrench

seller cyclevintagee:

• rating: 99.7%
• # reviews: 9849
• city: Halstead, Kansas

general cyclevintagee:

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

offer cyclevintagee:

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

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• policy: No Returns

shipping cyclevintagee:

• service: USPS Ground Advantage
• type: Fixed
• cost: $0.00
• transit: 3-8 Days
• class: Standard
• carrier: USPS

payments cyclevintagee:

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• wallet: Google-pay
• credit card: Visa

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