21039-3003 KAWASAKI Starter Motor Brush JS440 Js

Review KAWASAKI Starter Motor Brush Genuine Oem for JS440 JS 440 1976–1991

The Kawasaki 21039-3003 JS440 starter motor brush is an essential component for maintaining the optimal performance of your Kawasaki JS440 engine model from 1976 to 1991. This starter motor brush is meticulously designed to replace the worn-out brushes in your JS440 engine's starter motor.

This brush set is specifically engineered to fit and function effectively in the Kawasaki JS440 starter motor. The brushes are made from high-quality carbon material that ensures efficient electrical conductivity to provide a reliable spark during engine cranking. The carbon material is known for its superior durability, which makes these brushes a long-lasting solution for your engine's starting needs.

Each brush in the set is meticulously insulated with non-conductive material to prevent electrical short circuits and ensure the safety of your engine components. The brushes are held in place by robust metal holders that securely fasten the brushes to the commutator.

The Kawasaki 21039-3003 JS440 starter motor brush set is an excellent investment for any Kawasaki engine enthusiast or professional mechanic. By replacing the worn-out brushes with new, high-quality ones, you can ensure a smoother and more efficient starting process. This not only saves time but also prevents potential engine damage caused by a weak or failed starter motor.

Installing the new Kawasaki 21039-3003 JS440 starter motor brush set is a straightforward process that can be accomplished with basic hand tools. The brush set comes complete with detailed instructions to guide you through the installation process. If you are not confident in performing the installation yourself, it is recommended to consult a professional mechanic for the best results.

In conclusion, the Kawasaki 21039-3003 JS440 starter motor brush set is an essential replacement part that ensures the reliable starting process of your Kawasaki JS440 engine model from 1976 to 1991. Its high-quality carbon material, robust metal holders, and non-conductive insulation make it a long-lasting and effective solution to maintain the performance and longevity of your engine.

Pros and Cons of Buying Kawasaki 21039-3003 JS440 JS 440 Starter Motor Brush for 1976-1991 Models

The Kawasaki 21039-3003 JS440 JS 440 Starter Motor Brush is designed for specific Kawasaki models between the years 1976 and 1991. This part is crucial for ensuring proper starting functionality in your Kawasaki engine. In this analysis, we will discuss the potential advantages and disadvantages of purchasing this starter motor brush.

1. OEM (Original Equipment Manufacturer) Part: This starter motor brush is a direct replacement for the original part that comes with your Kawasaki engine. This ensures a perfect fit and optimal performance.

2. Improved Starting Performance: A worn-out brush can negatively affect the starter motor's performance, leading to difficulty in starting the engine. Replacing the brush with a new one, like the Kawasaki 21039-3003, can help improve starting performance.

3. Longer Engine Lifespan: By maintaining the starter motor with a new brush, you can potentially prolong the lifespan of your engine, as a poorly functioning starter motor can put extra stress on other engine components.

4. Easy Installation: This starter motor brush is relatively easy to install, with no complex procedures required. This can save you time and money compared to more intricate repairs.

1. Cost: Replacement parts, including starter motor brushes, can be relatively expensive. While the price of the Kawasaki 21039-3003 is reasonable compared to some other aftermarket options, it may still be a significant investment for some budget-conscious consumers.

2. Availability: Depending on your location and the specific Kawasaki model you own, it may be challenging to find this starter motor brush locally. This could result in additional shipping costs and wait times.

3. Limited Lifespan: Despite being a high-quality OEM part, the starter motor brush will eventually wear out again, requiring another replacement in the future.

The Kawasaki 21039-3003 JS440 JS 440 Starter Motor Brush is a worthwhile investment for those seeking reliable starting performance and a perfect fit for their Kawasaki engine. Its advantages, such as improved performance and easier installation, outweigh the potential disadvantages, like cost and limited lifespan. Ultimately, the decision to purchase this part depends on your personal circumstances, including your budget, engine model, and availability of local alternatives.

If you own a Kawasaki engine within the 1976-1991 model range and have experienced difficulties in starting the engine or notice any signs of wear on the starter motor brush, the Kawasaki 21039-3003 JS440 JS 440 Starter Motor Brush is a solid choice for restoring optimal starting functionality. By investing in this OEM part, you can enjoy peace of mind, knowing that you have a high-quality component designed specifically for your Kawasaki engine.

Details:

Fit's: Kawasaki JS440 1976-1991. Part# 21039-3003. We request that you.

specifications watercraftimp:

• for models: Js440, Js, 440
• for years: 1976–1991
• brand: Kawasaki
• mpn: 21039-3003
• part type: Starter Motor Brush

seller watercraftimp:

• city: los angeles, california
• rating: 100.0%
• # reviews: 29

returns watercraftimp:

• policy: returns accepted
• paid by: seller
• time: 30 days

offer watercraftimp:

• sold #: 14
• options: ship-to-home
• availability: in stock
• in stock #: 5
• started: december 9, 2025
• prices: $7.48–$24.99
• item condition:
  • New
  • New other (see details)

shipping watercraftimp:

• service: expedited
• transit: 6-11 days
• type: fixed
• class: expedited

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general watercraftimp:

• category: Watercraft Parts > Engines > Impellers Components