Cummins Seal Ring 3910530
Free returns on all eligible orders
You have 30 days to request a return. All sale items are final sale.
The Cummins 3910530 Rectangular Ring Seal is a genuine OEM Cummins sealing component used primarily on Euro 2 5.9 liter B engines. Cummins identifies this part specifically as a Rectangular Ring Seal, making it more specific than a general seal ring listing.
Key Features
- Genuine Cummins OEM sealing component
- Part number: 3910530
- Identified by Cummins as a Rectangular Ring Seal
- Primary application: Euro 2 5.9L B engines
- Factory replacement seal for the correct Cummins assembly
- Shipment height: 0.1111 in
Engine Compatibility
Used primarily on Cummins Euro 2 5.9 liter B-Series diesel engines. Confirm fitment by engine serial number, CPL, and Cummins parts diagram location before ordering.
Serial Number Fitment Notice
Cummins rectangular ring seals are application-specific. Verify by engine serial number and diagram location, especially because similar-looking seals can differ by profile, material, and sealing position.
When This Part Needs Replacement
Replace this seal if it is worn, flattened, cut, brittle, leaking, or disturbed during component removal. Reusing an old sealing ring can cause repeat seepage.
Installation Notes
Clean the groove and mating surface before installation. Install the rectangular ring seal evenly without twisting, stretching, or pinching it during reassembly.
Alternate/Superseded Part Numbers
- 3910530
Parts Desk Insight
The important detail for this part is that Cummins lists it as a Rectangular Ring Seal for Euro 2 5.9L B engines. Match by part number and engine serial number rather than by appearance.
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.