Genuine Shimano replacement part. You will receive item number 4. Life Is Better On A Bike.
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This guide is for cyclists who need a genuine replacement lever unit for their Shimano hydraulic disc brake system. The key benefit is restoring original braking performance and reliability. A potential caveat is ensuring compatibility with your specific brake model. This lever unit is a direct replacement part designed to maintain the high standards of Shimano braking systems, ensuring consistent stopping power and control on your bike.
| Model Part Number | 8V39803 |
|---|---|
| Brand | SHIMANO |
No, this is a specific replacement part (8V3 9803) for the Shimano BL-M988 lever unit. You must verify compatibility with your exact brake model.
It is highly recommended to bleed your brakes after replacing the lever unit to ensure optimal hydraulic performance and remove any potential air introduced during the process.
Installation requires mechanical aptitude and potentially specialized tools. If you are not comfortable with bicycle brake system maintenance, it is best to have a professional bike mechanic perform the installation.
Warranty information for replacement parts typically depends on the retailer and Shimano's specific policies for spare components. Please check with your point of purchase for details.
Signs include excessive play, a lever that doesn't return properly, or a lever that feels significantly different in engagement compared to when it was new. Cracks or visible damage also necessitate replacement.
MPN stands for Manufacturer Part Number. 8V39803 is the specific identifier for this Shimano BL-M988 lever unit, ensuring you get the correct replacement part.
Ensure the lever unit is fully seated and the pivot bolt is tightened to the manufacturer's specifications. If play persists, inspect for worn bushings or damage to the lever body.
The hydraulic system likely needs to be bled. Follow the Shimano service manual for your specific brake model to properly bleed the brake line and ensure no air is trapped.
Check for obstructions around the lever mechanism. Ensure internal springs are correctly seated and not damaged. The lever unit may need to be reinstalled or replaced if damaged.
Compatibility: This BL-M988 lever unit is a genuine Shimano part, intended as a replacement for specific Shimano hydraulic disc brake levers. It is crucial to verify that your existing brake lever assembly is compatible with this unit, often indicated by the Shimano part number on your current lever. Consult your bicycle's manual or a qualified bike mechanic if unsure.
Setup: Installation typically involves disassembling the brake lever body to replace the existing lever. This process may require specific bicycle tools, such as hex wrenches and potentially a brake bleeding kit if the system needs to be opened. It is highly recommended to follow the official Shimano service manual for the BL-M988 or seek assistance from a professional bike mechanic to ensure correct installation and brake function.
Care: After installation and proper bleeding, the lever unit requires minimal care. Keep the lever clean from dirt and debris using a soft, damp cloth. Avoid using harsh solvents or degreasers directly on the lever mechanism, as this can degrade materials. Periodically check that the lever actuation remains smooth and that there is no excessive play. Proper brake fluid maintenance, as per the brake system's requirements, will also contribute to the longevity of the lever unit.
