Mikuni 4042-490 Main Jet

Large hex type used in most Mikuni carburetors.

Built for reliable engine performance and long service life
Designed for dependable fit, sealing, or fuel delivery as applicable
Verify fitment and specs before installation

Part Number: 4042-490

Confirm specifications, dimensions, and application details before ordering.

Shop Steel Steeds for powersports parts and accessories with fast shipping and easy returns.

Once your Steel Steeds gear leaves our warehouse, it typically arrives at your doorstep within 2–4 business days, unless otherwise noted. We partner with trusted shipping carriers to ensure your off-road essentials get to you fast and hassle-free. So gear up with confidence—your next big adventure is just around the corner!

We are committed to providing quality products and stand behind our items with a warranty. Exact coverage may vary, so please refer to our warranty page for more details!

FAQs

Absolutely! Shopify is certified Level 1 PCI DSS compliant. This compliance extends by default to all stores powered by Shopify. Including Us!

Once your Steel Steeds gear leaves our warehouse, it typically arrives at your doorstep within 2–5 business days, unless otherwise noted. We partner with trusted shipping carriers to ensure your off-road essentials get to you fast and hassle-free. So gear up with confidence—your next big adventure is just around the corner!

Absolutely! Nearly every item we carry comes with a warranty tailored to that specific product. We stand behind the quality of the products we distribute and want you to ride with confidence. For full details, visit our dedicated warranty page—and rest assured, we’ve got you covered every step of the way!