KD KISONIED Fuel Tank Cap RD411-51122 with 2 Keys for Kubota — OEM-fit, Durable Seal

RD411-51122 is a direct-replacement fuel tank cap for a wide range of Kubota loaders and mini excavators, supplied with two keys for secure, on-site refueling.

Keep fuel systems sealed, keyed, and service-ready with this KD KISONIED replacement gas cap engineered to match OEM fitments. It replaces part numbers RD411-51122, 411-51122 and 265-8575 and is made for a broad list of Kubota skid steer loaders, mini excavators and compact loaders so you can restore fuel security quickly without modifying the machine.

Which Kubota models does this fuel cap fit?

This cap fits many Kubota models across skid-steer loaders, mini excavators and compact loaders. Before ordering, verify the part number on your existing cap and match visual details to the product photos to ensure compatibility.

• Skid steer loaders: SVL75, SVL75-2, SVL75-2C, SVL75C, SVL90 variants.
• Mini excavators: U35-4, U35-S2, U55, U45S, U45ST, KX series including KX040-4, KX057-4, KX91, KX121, KX161 variants.
• Loaders: 901C, 902C, 903C and other compatible compact loader models.
• Replaces part numbers: RD411-51122 / 411-51122 and 265-8575 for straightforward cross-reference.

How easy is installation and what should I expect?

Installation is straightforward: remove the old cap and install this unit in its place — no special tools required in most cases. The cap is designed to be a direct replacement for OEM parts so alignment and sealing should match the original function.

• Direct-replacement design for simple swap-in installation.
• Comes with two keyed locks for immediate use and spare key storage.
• Constructed to OEM-equivalent tolerances to ensure a proper seal.
• No modifications to the fuel tank or filler neck expected for compatible models.

What materials and quality controls are used?

The cap is produced under quality standards intended to meet longevity and fit expectations of replacement parts. While it’s not sold as an OEM-produced item, materials and manufacturing aim to replicate the performance and sealing characteristics of the original part.

• Built from durable materials chosen for fuel resistance and weather exposure.
• Machined and assembled to match common OEM dimensions and threading.
• Supplied with two keys to reduce downtime and risk of lost access.
• Packaged for protection during shipping to avoid scratches or damage.

What should I check before ordering this replacement cap?

Confirm the part number on your existing fuel cap and compare photos carefully: visual match and part number cross-reference are the quickest way to ensure compatibility. If your machine’s part number appears in the fitment list, this cap should be a suitable replacement.

• Verify part numbers: RD411-51122, 411-51122, 265-8575 or equivalents on your old cap.
• Match the filler-neck shape and threading shown in product images to your tank.
• Confirm model fit from the listed Kubota models before purchasing.
• Contact seller if you need clarification or additional photos for fitment assurance.

Who is this for: This KD KISONIED RD411-51122 fuel tank cap is aimed at fleet managers, equipment owners and repair technicians who need an affordable, OEM-compatible replacement for Kubota compact loaders and mini excavators. It’s a practical pick when a keyed, reliable fuel cap is required to secure fuel tanks, prevent contamination and restore original functionality without lengthy downtime.