Kubota V1702 Fuel Injector Nozzle 15221-53020

This is sold per nozzle. The V1702 is a 4-cylinder engine with one nozzle per cylinder. If you're replacing all nozzles during a service or rebuild, order 4. If a single cylinder is identified as the problem cylinder, one nozzle is sufficient.

Black smoke points to improper fuel atomization — a worn or clogged nozzle that dribbles or streams fuel instead of producing a fine mist is a primary cause. The injection pump can also cause over-fueling and black smoke if it's not metering correctly. Test the nozzles first by loosening each injector line one at a time with the engine running — the cylinder that doesn't change the engine note is the weak one. If a nozzle replacement doesn't clear the smoke, the pump should be inspected next.

You can replace just the problem nozzle if the others test within spec. However, if the machine has high hours and hasn't had nozzle service, replacing all four at once saves a second teardown later. At $35.99 per nozzle, doing all four at once is straightforward and protects your investment in the repair.

We offer free returns within 30 days if the part doesn't fit or you're not satisfied. Parts must be unused and in original packaging.

Yes. Call (818) 261-3896 and we'll help you confirm fitment, answer installation questions, or troubleshoot issues.

Orders ship same-day if placed before 3 PM EST. Standard delivery is 3-5 business days.