KAWASAKI 59051-0037 Starter Idler Reduction Gear Pin

( Manufacturer Part Number: 59051-0037 ), ( Part Type: Idler Starter Gear Pin ), ( Machine Type: Street Motorcycle ), ( Manufacturer Warranty: 1 Month ), ( Vintage Part: No ), ( Country Of Origin: Japan )

Review KAWASAKI Starter Idler Reduction Gear Pin fits Z1000 ZR1000 2003–2006

Kawasaki 59051-0037 03-06 Z1000 ZR1000 Starter Idler Reduction Gear Pin

The Kawasaki 59051-0037 03-06 Z1000 ZR1000 Starter Idler Reduction Gear Pin is an essential component of the starter system in selected Kawasaki motorcycles. This part is specifically designed for use in Z1000 and ZR1000 models manufactured between 2003 and 2006.

This starter idler reduction gear pin is primarily responsible for reducing the rotational speed between the starter motor and the engine flywheel. By doing so, it helps to minimize the load on the starter motor during engine cranking. This results in a smoother and more efficient starting process, as well as extended starter motor lifespan.

The Kawasaki 59051-0037 03-06 Z1000 ZR1000 Starter Idler Reduction Gear Pin is made from high-quality materials to ensure durability and reliability. Its precise dimensions and geometry are engineered to fit perfectly in the starter system of the specified motorcycle models.

Installation of this part is a straightforward process. It simply replaces the worn-out or damaged idler reduction gear pin. Users can perform this task at home, following the instructions provided in their motorcycle's maintenance manual. Alternatively, they can take their bike to an authorized Kawasaki dealer for professional installation.

In summary, the Kawasaki 59051-0037 03-06 Z1000 ZR1000 Starter Idler Reduction Gear Pin is an essential replacement part for maintaining the optimal performance and longevity of the starter system in select Kawasaki motorcycles. Its primary function is to reduce the rotational speed between the starter motor and the engine flywheel, ensuring a smoother and more efficient starting process while extending the lifespan of the starter motor.

Kawasaki 59051-0037 03-06 Z1000 ZR1000 Starter Idler Reduction Gear Pin: A Comprehensive Analysis

The Kawasaki 59051-0037 03-06 Z1000 ZR1000 Starter Idler Reduction Gear Pin is an essential component of the motorcycle's starting system. This part reduces the load on the starter motor by transmitting the torque from the starter motor to the engine through the reduction gears. In this analysis, we will discuss the pros and cons of purchasing this part.

1. Improved Starting Performance: A faulty or worn-out starter idler reduction gear pin can lead to poor starting performance. Replacing this part with a new one can help improve the starting process, making it smoother and more efficient.

2. Longer Engine Life: A damaged or worn-out reduction gear pin can cause excessive wear and tear on the engine components. By replacing this part, you can prevent further damage and prolong the life of your engine.

3. Peace of Mind: Knowing that your motorcycle's starting system is in good working order can give you peace of mind. Replacing a worn-out or faulty reduction gear pin is a proactive step to ensure that your bike is always ready to go.

1. Cost: Replacing the starter idler reduction gear pin can be an expensive repair, especially if you are not doing it yourself. The cost of the part itself, along with labor charges if you are getting it installed at a shop, can add up.

2. Time: The process of replacing the reduction gear pin can be time-consuming, especially if you are doing it yourself. It may require removing the engine cover, starter motor, and other components to access the pin.

3. Availability: In some cases, it may be difficult to find this specific part for your model and year of Kawasaki motorcycle. You may need to order it online or from a specialty shop, which can add to the time and cost of the repair.

The Kawasaki 59051-0037 03-06 Z1000 ZR1000 Starter Idler Reduction Gear Pin is an essential component of the motorcycle's starting system. While replacing this part can be an expensive and time-consuming repair, the benefits of improved starting performance, longer engine life, and peace of mind make it a worthwhile investment. If you notice any issues with your starter system, it is recommended to replace the reduction gear pin as soon as possible to avoid further damage and costly repairs down the line.

If you are experiencing starting issues with your Kawasaki motorcycle, it is recommended to inspect the starter idler reduction gear pin for signs of wear or damage. If you find that the part is worn out, it is advisable to replace it with a new one as soon as possible. You can either do it yourself or take it to a professional mechanic to ensure that the repair is done correctly and efficiently.

Details:

Has normal wear. Part brand: Genuine Kawasaki part. Condition notes: Good condition. You can expect your calls, texts and messages to be answered within our open hours.

Mounted/Tested fine. See all pics-you get this exact item. Donor machine: 2006 Z1000 ZR1000A with 10,708 miles.

part #: 590510037 prices

• $35.34-$108.86

specifications scostarters:

• for models: Z1000, Zr1000
• for makes: Kawasaki
• for years: 2003-2006
• mpn: 59051-0037
• part type: Idler Starter Gear Pin
• machine type: Street Motorcycle
• manufacturer warranty: 1 Month
• vintage part: No
• country of origin: Japan

seller scostarters:

• # reviews: 32879
• city: Union, Missouri
• rating: 99.8%

payments scostarters:

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

shipping scostarters:

• type: Fixed
• service: USPS Ground Advantage, USPS Priority Mail
• transit: 3-8 Days
• cost: $7.49
• class: Standard, Expedited
• carrier: USPS

returns scostarters:

• time: 30 Days
• policy: Returns Accepted
• paid by: Buyer

offer scostarters:

• sold: 0
• availability: In Stock
• options: Ship-to-home
• quantity: 1
• started: November 12, 2025

general scostarters:

• Motorcycle Scooter Parts Accessories > Electrical Ignition Components > Starter Motors
• condition: Used

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