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Yamaha Drum Brake Actuator Lever (Front) - 3E1-25155-00
Yamaha Drum Brake Actuator Lever (Front) - 3E1-25155-00
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This is a genuine Yamaha front brake camshaft lever (Part Number: 3E1-25155-00). This external actuator arm is a critical component for drum brake systems. When you pull the brake lever on your handlebars, this arm rotates, forcing the internal brake cam to expand the brake shoes against the drum for stopping power.
Vehicle Compatibility & Year Fitment
| Model | Compatible Years |
| Yamaha CW50 (Zuma / BWS) | 1990s |
| Yamaha YT175 | 1982 |
| Yamaha T50 / T80 (Town Mate) | Various |
| Yamaha PW80 / BW80 | Various |
Note: This part is widely used across Yamaha’s vintage small-displacement fleet, particularly on models with leading-link or basic telescopic front forks utilizing a front drum brake. Please verify your brake cam shaft’s splined interface, as minor variations in arm length and angle exist across models.
Fitment & Installation Details
Before installation, clean the splined shaft on the brake cam thoroughly with a wire brush to ensure a tight, bind-free fit. Position the lever so that the actuator cable pull is as perpendicular to the lever as possible at the point of maximum braking effort—this provides the best mechanical advantage. Tighten the pinch bolt securely and ensure the cable housing is properly seated in the frame/fork lug.
Important: Please ensure the part number matches your motorbike before purchasing. If you have any questions about the sticker or its compatibility, feel free to contact us. We’re here to help!
At Dmmotorcycles, we’ve specialized in vintage and vintage sports motorcycles and parts directly from Japan since 1998. We stock a wide selection of rare genuine and high-quality aftermarket parts and continually update our inventory to meet growing demand.
Looking for a specific part? Don’t hesitate to ask! We may have it in stock even if it’s not listed online. If not, we’ll do our best to source it for you.
We’re also happy to provide guidance on installation and offer excellent after-sales support to ensure your satisfaction.
Shipping Information
We ship worldwide, carefully inspecting and securely packing all parts to ensure safe delivery. Your order will be insured and shipped quickly, with the best available shipping option chosen for speed and reliability.
Please note:
- All parts are shipped from Cyprus (Europe).
- Customers outside the EU may incur additional import taxes based on the value of the item.

How we handle your order in 4 steps
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1. Order Verification
We confirm the order and make sure the correct part number, quantity, and any special requests match what’s on the sales confirmation
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2. Quality Check
Since our parts are new old stock we Inspect the parts for any defects, scratches, or missing components to ensure it meets quality standards. otherwise will notify you before proceeding with the order.
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3. Safe and Secure packaging
- Protective Wrapping: We use bubble wrap or foam padding to wrap the part, focusing on sharp edges or delicate components.
- Boxing: We place the wrapped part inside a sturdy box, filling gaps with packing materials to prevent movement.
- Sealing and Labeling: Securely tape the box and attach the shipping label, including orientation-specific markers like "Fragile."
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4. Finalizing of Shipment
We confirm the shipping address and contact details, give the package to the Post, keep the tracking number, and then send it to the customer along with the shipment notification.