Cummins O-Ring 145530
Free returns on all eligible orders
You have 30 days to request a return. All sale items are final sale.
The Cummins 145530 O-Ring is a replacement sealing O-ring used on compatible Cummins engine or marine system assemblies. O-rings are critical service parts designed to seal fluid or air passages between mating components, helping prevent leaks, pressure loss, contamination, and repeat service issues.
Key Features
- Replacement Cummins O-ring
- Used for sealing compatible Cummins assemblies where 145530 is specified
- Helps prevent fluid, oil, coolant, fuel, or air leakage depending on application
- Suitable for maintenance, rebuild, and component service work
- Correct replacement when the original parts breakdown calls for 145530
Product Compatibility
For Cummins applications that specify O-ring 145530 in the parts diagram or service breakdown.
Fitment Notice
Confirm fitment by engine model, component assembly, and original part number before ordering. Cummins O-rings can vary by diameter, thickness, material, and application, even when they look similar.
When This Part Needs Replacement
Replace this O-ring whenever the related component is removed, when the old seal is flattened, cracked, swollen, brittle, cut, or leaking. Reusing old O-rings can cause repeat leaks after reassembly.
Installation Notes
Clean the sealing groove and mating surface before installation. Lightly lubricate the O-ring with the correct fluid if required by the service procedure, and avoid twisting, stretching, or pinching the seal during assembly.
Alternate/Superseded Part Numbers
- 145530 — Cummins O-ring reference
Parts Desk Insight
Small seals are often the reason a repair has to be reopened. If the part is already apart, replacing the O-ring is usually the safer move than trying to reuse a compressed old seal.
Shipping: Ships same or next day for fast Canada wide shipping. ⚓
Shipping information
In-stock and OEM parts: ship same or next business day.
Locally warehoused items: ship within 3–4 business days.
Special-order items: timeline confirmed after order.
Returns & warranty
Returns & Satisfaction Guarantee
We stand firmly behind the quality of every product we sell. Your confidence matters to us — and we back it with a straightforward 30-Day Satisfaction Guarantee.
If you are not fully satisfied, you may request a return within 30 days of delivery. All returns must receive pre-approval prior to being sent back. Unauthorized returns will not be accepted.
To qualify for a return:
Item must be in new, unused condition
Product must be in its original packaging
All parts, components, hardware, manuals, and accessories must be included
Packaging must be undamaged and suitable for resale
Important:
Electronics are strictly inspected. No returns on open-box electronics. Exceptions may apply only with prior written approval. Any electronic unit that has been installed, powered, activated, or altered may not be eligible for return.
We are serious about product integrity — and equally serious about taking care of our customers. If there is ever a product issue, contact us immediately so we can make it right.
For return authorization, please contact our support team before shipping anything back.