Overview – SPRING WASHER 111445-20 Series
If you run Cummins fastening and alignment positions as the spring washer that holds bolt tension, the Cummins SPRING WASHER 111445-20 and its series variants give you flexible sourcing without compromising fit.
Parts Characteristics
A spring washer that bites into the joint and keeps a bolt loaded against vibration and thermal cycling, so the assembly stays clamped instead of walking loose under running load. It carries the spring tension that a plain washer cannot, so a true, seated washer keeps the fastener from backing off.
Applicable Models & Applications
Used across Cummins fastening positions specifying this spring washer (series). Match the diameter, the section and the finish against your old washer – spring washers differ in how they bite and seat.
Maintenance & Replacement
Inspect every fastener for a flat or relaxed washer at each service. A washer that has begun to lose its spring lets the bolt drift, and the drift is what loosens the joint.
Replace rather than reuse a compressed washer – it loses grip the moment it is flattened. A reused washer that has taken a set holds nothing and the bolt walks.
Confirm the washer seats square under the head and the torque holds. A washer canted in its counterbore binds and the clamp never reaches spec.
Keep common spring washers for your model on the bench. They cost almost nothing, they hold an expensive joint, and a component open on a washer is a machine waiting on a small part.
Price Reference (USD)
As a reference, the SPRING WASHER 111445-20 is typically priced between USD 2 and USD 25 depending on configuration, lot size, and current exchange rates.
Value & Service
We supply brand-new Cummins spring washers with the diameter and section confirmed against your fastening, so the bolt stays loaded.
Compatible SPRING WASHER part numbers: 135783-20, 181466-20, 3036460X, 3165975-20, 3165976-20, 3165977-20, 3165978-20, 3165979-20, 3165980-20, 3165982-20, 3165983-20, 3866614-20, 3910266X, 4974100X, 4974101X, 4974298X, 70262-20, C3967108, C3967110, C3967119, and more. Share your engine tag and we will pinpoint the right one.
The SPRING WASHER 111445-20 is just one of thousands of Cummins General Parts stocked by Racer Machinery, all backed by technical advice from people who work with these engines daily.







