STIHL Pump Diaphragm Trimmers HS46 HS56 B59

( Brand: Stihl ), ( Manufacturer Part Number: 42421214800 ), ( Type: Diaphragm )

Review STIHL Genuine Oem Pump Diaphragm 4242 121 4800 Trimmers B59

Introducing the Stihl 42421214800 pump diaphragm, an essential component for keeping your Stihl HS46 and HS56 trimmers in top working condition. This premium quality diaphragm is meticulously designed to provide optimal performance and longevity for your trimmer.

The diaphragm is manufactured using high-density rubber material, ensuring superior flexibility and durability. Its design includes reinforced ribs that enhance the diaphragm's resistance to damage, especially during heavy-duty use. The ribs also help maintain the diaphragm's shape, ensuring consistent vacuum and pressure in the fuel system.

This Stihl 42421214800 pump diaphragm features a precise fit that guarantees seamless integration with your trimmer's fuel pump. Its O-ring seal ensures airtight sealing, preventing fuel leakage and minimizing the risk of contamination. Moreover, the diaphragm's smooth surface ensures unobstructed fuel flow, ensuring efficient operation.

Installing this diaphragm is a breeze, thanks to its straightforward installation process. Simply remove the old diaphragm and replace it with the new one, ensuring that the O-ring seal is properly seated. Regular replacement of the diaphragm is essential for maintaining the overall health and longevity of your Stihl trimmer.

In summary, the Stihl 42421214800 pump diaphragm is a must-have replacement part for your HS46 and HS56 trimmers. Its high-quality construction, durable design, and easy installation make it an indispensable addition to your trimmer maintenance toolkit. Upgrade your trimmer's performance and extend its lifespan with this top-tier pump diaphragm from Stihl.

The Stihl 42421214800 pump diaphragm is a replacement part designed for Stihl HS 46 and HS 56 trimmers with model numbers B59. This diaphragm ensures proper function of the trimmer's cooling system by regulating the flow of cooling liquid. Let's discuss the pros and cons of purchasing this part.

1. Reliability: Stihl is a well-known brand in the power tool industry. Their parts, including the 42421214800 pump diaphragm, are designed to meet high standards of quality and reliability.

2. Proper Fit: This part is specifically designed for Stihl HS 46 and HS 56 trimmers with the B59 model number. It ensures a perfect fit and proper functionality of the cooling system.

3. Availability: Stihl parts, including the 42421214800 pump diaphragm, are widely available at authorized Stihl dealers, online retailers, and through the manufacturer's website.

1. Cost: Replacement parts, including the Stihl 42421214800 pump diaphragm, can be more expensive than some users anticipate. However, the cost is justified by the reliability and longevity of Stihl tools and parts.

2. Installation: Installing the pump diaphragm may require some level of mechanical skill. If you are not comfortable performing this task yourself, it is recommended to have it installed by a professional or an authorized Stihl dealer.

The Stihl 42421214800 pump diaphragm is a high-quality replacement part designed for Stihl HS 46 and HS 56 trimmers. While it may have a higher cost compared to some aftermarket alternatives, the reliability, proper fit, and availability make it a worthwhile investment for those who prioritize the performance and longevity of their power tools.

If you own a Stihl HS 46 or HS 56 trimmer and require a replacement pump diaphragm, the Stihl 42421214800 is the recommended choice. It ensures optimal performance and longevity of your trimmer's cooling system. While installation may require some mechanical skill, the availability of this part at authorized Stihl dealers and online retailers makes it a convenient option for users.

Details:

PART NUMBER: 4242 121 4800. FITS THE FOLLOWING model's AND POSSIBLY OTHERS MISSED: HS46, HS46C, HS56, HS56C.

part #: 42421214800 prices

• $20.99-$43.95

specifications sawpancho:

• brand: Stihl
• mpn: 42421214800
• type: Diaphragm

general sawpancho:

• condition: New
• Yard, Garden Outdoor Living > Outdoor Power Equipment > Chainsaw Parts

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• class: Standard
• type: Calculated
• service: Standard Envelope for eligible items up to $20
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• cost: $0.00

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offer sawpancho:

• best offers: True
• availability: In Stock
• options: Ship-to-home
• started: February 28, 2026
• sold: 0
• quantity: 1

seller sawpancho:

• rating: 100.0%
• # reviews: 11974
• city: Hughson, California

returns sawpancho:

• time: 30 Days
• paid by: Seller
• method: Money back
• policy: Returns Accepted

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