Skip to product information
SKU:
NLT1U00569
Ships for free in 2–4 business days.
Kubota 13 PSI Radiator Cap for MX5000 MX5100 RTV900 and SQ Generators
$24.99
In Stock
$24.99
Sale price
$24.99
Regular price
This new aftermarket 13 psi cooling system radiator cap is intended for the compatible models and reference numbers shown below.
Estimated delivery between
Let Northline Parts Do the Heavy Lifting for You!
Not sure which part you need? Our team can help you find the right replacement.
Parts Support Hours: Monday–Friday, 8:00 AM–5:00 PM CT
Live Chat: Available 24/7
I reached out for some replacement head bolts and they responded quickly with a few questions and cautionary information and is sending me some bolts. Great customer service! Thanks
Edward H. — Verified customer
Compatible Models
We do our best to list all compatible models. Although this may be the part you need, your exact model may not appear below.
Compatible equipment / model
- Kubota MX5000
- Kubota MX5100
- Kubota RTV900
- Kubota SQ-1140
- Kubota SQ-1200
- Kubota SQ-3170
- Kubota SQ-3250
Product Overview
Coolant pushed into the overflow, a hose that never firms up, or boiling at a lower-than-normal temperature can come from a cap that no longer holds pressure. Leaks and true overheating causes must still be checked.
This 13 PSI / 0.9 bar cap seals and regulates pressure on compatible Kubota tractor, utility-vehicle, and generator cooling systems. Neck depth, ear shape, seal diameter, and pressure rating must match.
Key Features & Performance
- 13 PSI pressure rating
- Equivalent to approximately 0.9 bar
- Spring-loaded pressure and vacuum seals
- Fits listed Kubota equipment
- New aftermarket cap
Common Uses
- Replacing a cap with a hardened seal
- Correcting loss of cooling-system pressure
- Cooling-system service after leak testing
- Replacing a damaged or missing cap
Technical Specifications
- Product Type: Radiator pressure cap
- Pressure Rating: 13 PSI / 0.9 bar
- Material: Steel and rubber sealing components
- Condition: New
- Replacement Type: Aftermarket
Installation & Fitment
- Never remove a cap from a hot system
- Inspect the filler-neck sealing surfaces
- Compare cap depth and locking ears
- Fill coolant to the machine procedure
- Pressure-test and watch the overflow during warm-up
Compatibility Notice
Northline Parts does its best to list all known compatible models, but the correct part may fit an application not shown.
Model, production date, serial number, dimensions, electrical or mounting configuration, installed options, and previous repairs can affect fitment. Compare the removed part and equipment information before purchase.
Frequently Asked Questions
Q: Can a bad radiator cap cause coolant loss? A: Yes. A weak seal can release coolant too early, but leaks, combustion pressure, and overheating can also force coolant out.
Q: Can I install a higher-pressure cap? A: Use only the pressure rating specified for the equipment; a higher cap can overstress hoses, radiator, and seals.
Q: How do I confirm fitment before ordering? A: Match the original reference number, equipment model and serial number, dimensions, connector or mounting details, and the product photos. Do not rely on appearance alone.
Q: Is this made by the original equipment manufacturer? A: No. This is a new aftermarket part. Brand names and model numbers are used only to identify compatible equipment.
Part Summary
keywords: Kubota 13 PSI radiator cap, Kubota MX5100 coolant cap, RTV900 radiator cap replacement, Kubota SQ generator cooling cap, 0.9 bar Kubota cap
Brand names, model numbers, and reference part numbers are used for identification and compatibility purposes only. Verify the original component, dimensions, and application before purchase.