Cart 0

Replacement Joystick Rubber Boot

  • $15.12
  • or

Koyker Joystick Part 664541

Rubber boot replacement part for Koyker loader joysticks.

Part fits the small loader valve where the joystick is attached directly to the valve. In older Koyker manuals, it was called the Dinoil valve.

Note: Part does not fit 2 & 3 spool joystick with the cables. Please see pictures for dimensions and example of boot with small loader valve.

Part Number: K664541

    This product does not qualify for returns. Please make sure this product is the correct size and will work for your equipment before purchasing. If you have questions or concerns, please contact our Koyker Customer Service Team at 1-800-456-1107.

    We try our best to ship orders in the timeliest manner possible. Each product may have a different level of manufacturing demand and timeframe for shipment.

    Shipping Rates

    We offer calculated shipping rates during the checkout process. USPS, UPS & FedEx services are available if the product ordered qualifies for those options.

    Order Processing

    Business Days: Monday-Thursday.
    Holidays, Fridays, Saturdays and Sundays are not included in processing days.

    If you have any questions or concerns about your order's status, please email us at to discuss.

    International Orders

    Customers are responsible for any brokerage fees incurred on shipping. Sioux Steel Company cannot calculate these fees.


    Products on this website do not qualify for returns. We understand this may cause you concern....

    We are here to help!

    Our customer service team is available Monday-Friday, 8am to 5pm CST to discuss the parts in question PRIOR to placing your order.

    Call us toll free at 1-800-557-4689 to talk and confirm your parts needed.

    Sioux Steel Facebook Page  Sioux Steel YouTube Videos  Sioux Steel Twitter Feed   Connect with Sioux Steel on LinkedIn  Follow Sioux Steel on Instagram  Sioux Steel Pinterest Page

    Dealer Locator
    We distribute products through local dealerships in your area. Prices and product availability may vary between dealerships.

    Verdant Garden Beds:
    Galvanized steel raised garden beds can be found on Amazon.

    Verdant Garden Beds

    Ask a Question

    NOTE: All product specifications are subject to change or improvement without notice. We reserve the right to change product pricing at any time without further notice. Pricing may differ at the time of purchase.

    Contact Sioux Steel by emailing or by calling our customer service specialists at 1-800-557-4689 for additional information.

    SIOUX STEEL COMPANY FOUNDATION: 2% of the total sales dollars from this website are donated to the Leukemia and Lymphoma Society. Beating cancer is in our blood.

    Customer Reviews

    Based on 58 reviews
    Rubber boot

    The boot fits perfectly thanks to the great help I got with cylinder seal set and the rubber boot for the front loader . Looking forward to ordering parts from them in the future. Thanks

    Rubber Boot

    Works as it should

    craig harrison
    rubber boot

    rubber is nice and supple

    Thomas Coleman

    i like it

    Michael Petty
    Rubber joystick boot

    Really great product. Wonderful company to buy from. Fast shipping. Good price.

    We Also Recommend


    Ask a Question
    • Will this fit my 2005 Branson 4720i Front end loader joystick KOYKER JOYSTICK PART 664541 thanks Dennis

      Thank you for reaching out! If you're able to, we do have images on the Rubber Boot page that have the dimensions. That should help you determine if the dimensions fit your loader. If you still are having trouble, our Customer Service Team can be reached at 1-800-557-4689 or 1-605-336-1750. Thank you.

    • will fit koyker 175

      Thank you for reaching out! Yes, the Replacement Joystick Rubber Boot will fit the Koyker 175 loader.

    • How long will it take to ship to north Georgia. Zip code 30739

      Thank you for reaching out! We are typically able to get Replacement Joystick Rubber Boot orders out within 1-3 business days. UPS & USPS have had some delays due to the pandemic, but we have not seen our orders take extraordinary about of time to arrive at their final destination. Thank you.

    • Does this boot come with the strap to attach to valve?

      Thank you for the great question! No, the joystick boot does not come with a specific strap. We suggest working with your local hardware store to locate a heavier duty zip tie to utilize.

    • Hi, Can you ship to Australia. I would like to order a K664541 joystick boot. Can you please advise. Thank you. Anthony.

      Thank you for connecting with us! Yes, we can ship internationally :) Thank you for the great question!

    • How much does this stretch? My joystick base is 3"x2.5" and 4" tall with a 7/16" joystick diameter.

      Greetings! There is some flexibility. Given the information provided, we believe the boot would fit your joystick base. Thank you for the great question!

    • I have a yanmar ym3110d with factory loader that needs a joystick boot will this fit my loader?

      Thank you for asking! Since this is not a Koyker valve, we would not guarantee it would fit. On a few of the product photos, however, there are dimensions listed to help determine if it could possibly fit.

    • I have a Koyker 120 that attached to a Yanmar 1720D. It looks about 20 years old. Would the boot fit that model? Thanks

      Greetings! Thank you for reaching out. Yes, this part should fit.

    • I have a Koyker 210 loader with joystick. Is K664541 the correct boot?

      Thank you for reaching out. Yes! This is the correct part.

    • Will this fit a koyker 220 dinoil joystick

      Thank you for reaching out! I reached out to our Koyker Customer Service Team and they said that will fit.

    • Will this fit a Koyker 210 ?

      Thank you for reaching out! Yes, this boot (K664541) will fit the 210 Koyker loader. 


    Welcome to the Loyalty Points Demo Store :-)

    Sign up and receive 5000 pts to test out in our Store.

    Earning and redeeming Reward Points

    Earns you
    Redeems to

    Ways you can earn

    • Product Purchase
    • Refer a friend
    • Share on social media

    Learn more about our program