YAMAHA 396-21170-00-33 Battery Box Mount Flahser Relay

( Part Type: Battery Box Mount ), ( Universal Fitment: No ), ( Vintage Part: Yes ), ( UPC: 396211700033 )

Review YAMAHA Battery Box Mount Flahser Relay fits RD125 1975

The **Yamaha 396-21170-00-33** is a meticulously engineered, high-quality battery box mount designed specifically for the 1975 Yamaha RD125, a classic motorcycle known for its timeless performance and sporty aesthetics. This precision-crafted component is crafted to seamlessly integrate with the bike s electrical system, ensuring both functionality and durability. The mount is constructed from robust, corrosion-resistant materials, including reinforced metal and durable plastics, which guarantee long-lasting performance even under the demanding conditions of daily riding. Its design is both functional and ergonomic, featuring a secure, vibration-dampening base that keeps the battery box firmly in place, reducing rattles and ensuring optimal electrical connectivity. The mount is engineered to accommodate the bike s original battery box with ease, providing a snug fit that prevents shifting or misalignment, which could lead to potential electrical issues or safety hazards.

Beyond its structural integrity, the **396-21170-00-33** also includes a built-in housing for the flasher relay, a critical component for the motorcycle s lighting system. The relay mount is strategically positioned to minimize wiring clutter while maximizing accessibility for maintenance or adjustments. This thoughtful placement ensures that the flasher relay operates efficiently, contributing to reliable headlight and taillight functionality, which is essential for both visibility and safety during rides. The design also incorporates thoughtful routing for wiring harnesses, allowing for a clean and organized installation that enhances the bike s overall aesthetic while maintaining practicality.

For enthusiasts and restorers seeking to preserve the authenticity of their 1975 Yamaha RD125, this battery box mount is an ideal choice. It is compatible with the bike s original specifications, ensuring that the fit and function remain true to the manufacturer s intent without compromising on modern reliability. Whether used in a restoration project or as part of routine maintenance, the **396-21170-00-33** offers a perfect blend of heritage and functionality, allowing riders to enjoy the classic RD125 experience with confidence in its electrical system s performance. Its attention to detail, combined with Yamaha s reputation for quality, makes this component a must-have for anyone looking to maintain or enhance their bike s drivability and longevity.

### **Pros and Cons of buying a Yamaha RD125 Battery Box Mount Flashing Relay (Part #396-21170-00-33, 1975 Model)**

1. **Compatibility** This part is specifically designed for the 1975 Yamaha RD125, ensuring a proper fit without modifications. It is part of the electrical system, which means it integrates seamlessly with the bike s existing wiring and components.

2. **Functionality** The flashing relay is essential for the turn signal system. If the original relay fails, this replacement ensures that the turn signals function correctly, improving visibility and safety during rides.

3. **Reliability** Yamaha parts are generally built to last, and this relay is no exception. A high-quality relay reduces the risk of intermittent or complete failure of the turn signal system, which can be dangerous.

4. **Ease of Installation** Since it is a direct replacement, installation is straightforward for someone with basic mechanical or electrical knowledge. No major modifications to the bike are required, and it can often be installed in under an hour with the right tools.

5. **Prevents Further Damage** A faulty relay can cause excessive strain on the turn signal lights or wiring, potentially leading to more expensive repairs if ignored. Replacing it early prevents cascading electrical issues.

6. **Cost-Effective** Compared to the cost of repairing or replacing a damaged turn signal system, this relay is a relatively inexpensive fix. It extends the life of the bike s electrical components without requiring significant investment.

7. **Maintains Resale Value** If you plan to sell the bike later, having all original or genuine replacement parts (like this relay) can make the bike more appealing to buyers who prioritize authenticity and reliability.

---

1. **Age of the Part** The part is from the 1970s, which means it may not be as robust as modern equivalents. While it should function adequately, it might be slightly less durable than newer relays designed with modern materials and engineering.

2. **Limited Availability** As a vintage part, it may not be as widely stocked as newer Yamaha parts. You might need to order it from a specialty motorcycle parts dealer, which could take longer than purchasing a more common component.

3. **Potential for Wear** If the bike has been ridden extensively over the years, the relay or its associated wiring may already be degraded. Replacing just the relay might not solve all issues if the wiring harness or connections are corroded or damaged.

4. **No Upgrades** This is a direct replacement, meaning it does not offer any performance or safety upgrades beyond restoring functionality. If you re looking for modern enhancements (e.g., brighter LEDs, longer-lasting components), this part alone won t provide them.

5. **Skill Dependency** While installation is relatively simple, if you lack experience with motorcycle electrical systems, there s a risk of improper installation. This could lead to short circuits, faulty connections, or even damage to the bike s wiring.

6. **Cost Relative to Newer Alternatives** If you re open to upgrading, newer flashing relays or even LED turn signal kits might offer better reliability and longevity. However, these would require additional modifications and may not be as straightforward as a direct replacement.

---

The **Yamaha RD125 Battery Box Mount Flashing Relay (396-21170-00-33)** is a practical and necessary replacement for restoring the turn signal functionality of a 1975 RD125. Its primary advantage lies in its **direct compatibility, reliability, and ease of installation**, making it an ideal choice for owners who prioritize authenticity and simplicity. The part is cost-effective and prevents further electrical issues, which is crucial for maintaining the bike s safety and drivability.

However, its **age, limited availability, and lack of modern upgrades** are minor drawbacks. If the bike s electrical system is otherwise in good condition, this relay will serve its purpose well. For those who want to explore modern alternatives, further research into LED turn signal kits or higher-quality relays may be worthwhile but these would require additional effort and potentially more complex installation.

---

- Your 1975 Yamaha RD125 s turn signals are malfunctioning due to a faulty relay.

- You prefer a direct, no-frills replacement that ensures compatibility and reliability.

- You have basic mechanical skills or access to someone who can assist with installation.

- You want to avoid more extensive electrical repairs that could arise from ignoring the issue.

- You re open to upgrading the turn signals to LEDs or brighter lights for better visibility.

- You suspect the wiring harness or other electrical components are degraded, in which case a full electrical inspection may be needed.

- You cannot find the part easily and are willing to explore aftermarket or newer OEM equivalents.

**Final Verdict:** This is a **solid, cost-effective solution** for restoring turn signal functionality to a classic Yamaha RD125. For most owners, it is the best choice for maintaining the bike s original character while ensuring safety.

Details:

Flasher relay included.

part #: 396211700033 prices

• $24.00-$50.56

specifications cyclevintagee:

• for models: Rd125
• for makes: Yamaha
• for years: 1975
• part type: Battery Box Mount
• universal fitment: No
• vintage part: Yes
• upc: 396211700033

offer cyclevintagee:

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

payments cyclevintagee:

• credit card: Diners-club
• other
• wallet: Paypal

shipping cyclevintagee:

• carrier: USPS
• class: Standard
• transit: 4-10 Days
• cost: $8.06
• service: USPS Ground Advantage
• type: Calculated

seller cyclevintagee:

• rating: 100.0%
• # reviews: 93
• city: Minonk, Illinois

general cyclevintagee:

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

returns cyclevintagee:

• policy: No Returns

Yamaha 396-21170-00-33 Is Similar To:

• 11445555 Yamaha Rubber Battery Box (38.5% similar) The sleeve set has been cleaned, inspected, and is in good overall used usable working condition. Fits yamaha XS850. Ships in a 7X7X6 and weighs 1 to 2 pounds. Hi, this battery sleeve was removed from a 1980 yamaha...(November 29th, 2017)
• 12v Cm11-50 Yamaha Ignition Coil With Bracket (29.6% similar) ...(December 16th, 2018)
• 15-5520 Yamaha Cycle Country Mount (30.8% similar) Ships same day. This part may be compatible with multiple yamaha model's...(December 15th, 2017)
• 174-26335-01 Yamaha Genuine Nos Cable Clutch With Spring (27% similar) 5 inch casing length , 41. 5 cable length shown to fit the following model's please verify YCS11968 YCS1C vintage dirt and trail motorcycles...(October 17th, 2018)
• 1a0-21170-01-33 Yamaha Nos Battrey Box (46.3% similar) This is a new battery box for the yamaha RD400 no and some shelf wear little dirty dusty but nice part longer available from buy now save...(August 5th, 2018)
• 20-5170 Cycle Country Yamaha Grizzly Winch Mount (27.1% similar) Please look at photos carefully to be sure you can use this part rubber city vintage cycle yamaha grizzly 660 YFM660 country winch mount new part brand. Again please look at the photos for condition. Please review all pictures to assess the condition of item...(June 23rd, 2018)
• 214-14771-00 Yamaha Exhaust Muffler Stay Mount Bracket Lot Of New (31.1% similar) ...(July 25th, 2018)
• 214-21240-10-33 Yamaha Nos Battery Box (35.2% similar) I ship worldwide via us mail and will combine shipping whenever possible. Hi ak pr APO AP may be higher. Location: BM7-18E...(July 26th, 2018)
• 2al-w217e-40 Yamaha Oem Ysr Side Cover Battery Lid (33.3% similar) Yamaha oem yrs side cover painted yellow item is sold as pictured...(October 13th, 2018)
• 2gv-82305-20-00 Yamaha Virago Ignitor Cdi Spark Control Box Ecu (21.1% similar) Used 2GV fitment: 1990 yamaha virago 535...(February 27th, 2018)
• 2j5-14453-00-00 Yamaha Air Box Intake Boot Yz (31.3% similar) Yamaha YZ80E YZ80F air box intake boot VAX ME vintage restoration motocross MC Eco aroma Z 80 e f 78 79...(June 3rd, 2018)