KAWASAKI 43015-1055 Rear Brake Master Cylinder Pump

( Manufacturer Part Number: 43015-1055 ), ( Part Type: Brake Cylinder Pump ), ( Compatible Year: 1981 ), ( Placement On Vehicle: Rear )

Review KAWASAKI Rear Brake Master Cylinder Pump fits KZ1300B KZ1300 TOURING 1980

The **Kawasaki 43015-1055 1980 KZ1300B Touring Rear Brake Master Cylinder Pump** is a meticulously crafted, high-performance hydraulic component designed exclusively for the legendary Kawasaki KZ1300B Touring model from 1980. This essential braking system part plays a pivotal role in ensuring precise, responsive, and reliable stopping power, making it a critical upgrade or replacement for enthusiasts seeking to restore or enhance the handling and safety of their classic bike. Engineered with Kawasaki s signature attention to detail, the master cylinder pump features a robust, durable construction that combines corrosion-resistant materials with smooth-operating internals to deliver consistent braking performance under demanding conditions. The unit incorporates a sealed, dual-piston design optimized for the KZ1300B s hydraulic braking system, providing the necessary hydraulic pressure to engage the rear disc brake with minimal effort while maintaining a firm, progressive feel. Whether used in a full restoration project or as a standalone repair, this master cylinder pump ensures compatibility with the bike s original brake lines and caliper setup, preserving the authenticity of the Touring s classic aesthetic while upgrading its braking efficiency. Ideal for riders who demand both heritage charm and modern reliability, this part is a testament to Kawasaki s engineering prowess, offering a seamless blend of performance and durability for those who appreciate the art of motorcycle craftsmanship.

### Pros and Cons of buying a Kawasaki 1980 KZ1300B Touring Rear Brake Master Cylinder Pump (Part #43015-1055)

1. **Authentic Replacement Part** This is an original Kawasaki part, ensuring compatibility with the 1980 KZ1300B Touring model. It will fit perfectly without modifications and maintain the bike s original specifications.

2. **Reliability** Kawasaki parts are known for durability, and the master cylinder is a critical component for safe braking. A genuine part reduces the risk of failure compared to aftermarket alternatives.

3. **Ease of Installation** Since it is an OEM (Original Equipment Manufacturer) component, it should integrate seamlessly with the existing brake system, requiring minimal adjustments.

4. **Long-Term Performance** High-quality materials and manufacturing standards mean this part should last as long as the original, provided it is properly maintained.

5. **Resale Value** If you plan to sell the bike later, having original Kawasaki parts can make it more appealing to buyers who prefer authenticity.

6. **Warranty Coverage** If purchased from an authorized dealer or Kawasaki-approved seller, it may come with a warranty, offering peace of mind against defects.

1. **Cost** Genuine Kawasaki parts are typically more expensive than aftermarket alternatives. The price may be a significant investment, especially if the bike is older and not in high demand.

2. **Limited Availability** Since this is an older model, finding the exact part may require searching through specialty motorcycle parts dealers, eBay, or salvage yards. Lead times could be longer than for newer bikes.

3. **Potential for Wear** If the bike has been ridden extensively, the master cylinder may already be worn out or contaminated with debris. Replacing it alone may not fully resolve brake issues if other components (e.g., brake lines, calipers, or pads) are degraded.

4. **No Modern Upgrades** Unlike aftermarket parts, this is not an opportunity to upgrade to a higher-performance or more durable master cylinder. It restores the bike to its original specification.

5. **Installation Skill Required** While straightforward, replacing a master cylinder requires some mechanical skill, especially if you re unfamiliar with brake system work. Mistakes could lead to leaks or improper bleeding, compromising braking performance.

6. **Environmental and Ethical Concerns** If purchasing from a salvage yard, there may be questions about the part s history (e.g., whether it was in an accident or improperly stored). Buying new from Kawasaki ensures no such concerns.

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Buying the Kawasaki 43015-1055 rear brake master cylinder pump for your 1980 KZ1300B Touring is a practical choice if you prioritize authenticity, reliability, and long-term compatibility. It is the safest option for restoring the bike s original braking system without risking compatibility issues. However, the higher cost and potential challenges in sourcing the part may make it less appealing if you re on a tight budget or open to aftermarket alternatives.

If your primary goal is to restore the bike to working order and you can afford the part, this is the best option. If you re looking to save money or upgrade performance, you might consider a high-quality aftermarket master cylinder from a reputable brand (e.g., Akebono, Brembo, or Haynes). Always ensure the aftermarket part meets or exceeds the original specifications for safety.

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- You want to maintain the bike s original specifications and authenticity.

- You re confident in your ability to install it correctly or are willing to pay for professional installation.

- You ve verified the part s availability from a trusted source (e.g., Kawasaki dealer, reputable online retailer, or salvage yard with a good return policy).

- You re on a budget and can find a high-quality aftermarket master cylinder that meets or exceeds the original s performance.

- You plan to upgrade other brake components (e.g., lines, calipers) and want a cohesive system.

- You re comfortable researching and selecting a part with proper reviews or recommendations from motorcycle forums.

Always inspect the part for damage or wear before installation, and bleed the brake system thoroughly afterward to ensure optimal performance. If in doubt, consult a professional mechanic.

Details:

Removed from 1980 KZ1300B. Free shipping is to 48 states only.

part #: 430151055 prices

• $14.36-$36.25

specifications cyclevintagee:

• for models: Kz1300b, Kz1300, Touring
• for makes: Kawasaki
• for years: 1980
• mpn: 43015-1055
• part type: Brake Cylinder Pump
• compatible year: 1981
• placement on vehicle: Rear

offer cyclevintagee:

• options: Ship-to-home
• started: May 3, 2026
• quantity: 1
• availability: In Stock
• sold: 0
• best offers: True

general cyclevintagee:

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

seller cyclevintagee:

• # reviews: 205
• city: Lerna, Illinois
• rating: 99.0%

returns cyclevintagee:

• policy: No Returns

shipping cyclevintagee:

• type: Fixed
• transit: 4-10 Days
• class: Standard
• cost: $0.00
• service: Standard

payments cyclevintagee:

• other
• wallet: Apple-pay
• credit card: Diners-club

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