Cummins NEW OEM 3818463 Plain Washer Flat Washer Diesel Engine Hardware NOS 0810

Cummins Plain Washer — Part Number 3818463

Brand: Cummins | Condition: New Old Stock (NOS)

Genuine Cummins original equipment plain washer, part number 3818463. "Plain Washer" is Cummins' own catalogue designation for a flat, unsplit, non-locking washer, and this is the factory part in the factory numbering — from original dealer stock, in Cummins packaging, never installed.

Condition Details

New Old Stock. The washer is new and unused, never fitted. As with all NOS stock, the original packaging may show shelf wear, dust, discoloration, handling marks, or age-related dirt, and bag printing may be faded. The part is sold as new; the packaging is sold as-is. The washer is flat and true with no corrosion, burrs, or distortion.

Specifications

• Part Number: 3818463
• Part Type: Plain washer (flat washer)
• Form: flat, unsplit, non-locking
• Marked on factory packaging: PLAIN WASHER
• Sold: each (one washer per unit unless the listing photo shows otherwise)
• Manufacturer: Cummins, original equipment

Inside diameter, outside diameter and thickness are not published by Cummins for this number. Please see the Application section and order by part number. The listing photographs show the washer clearly against a scale; if you need an exact measurement before you buy, send us a message and we will take it for you and send you the figures.

Superseded & Cross Reference Part Numbers

• Cummins: 3818463

No aftermarket cross reference exists for this number. Cummins hardware in the plain washer series is not catalogued by the aftermarket seal and gasket houses, which is why original stock is the route when a parts manual calls out a specific washer number.

Features

• Genuine Cummins original equipment hardware, not a generic flat washer
• Plain, not split and not toothed — Cummins specifies a plain washer where the job is to spread load across a soft or machined face without biting into it. A split or toothed washer in the same position will mark the surface and will not distribute load the same way
• Cummins maintains a dedicated plain washer series with its own numbering precisely because the diameter, the bore and the thickness are specified per location rather than left to a standard size
• Still carries the Cummins number your parts manual calls out
• A washer is the cheapest part in any assembly and one of the few that is specified by dimension rather than by function. Getting the right one is a matter of matching the number, not of finding something that fits the bolt

Application

Fits Cummins applications calling for part number 3818463.

Important — please read before ordering. Cummins catalogues plain washers as standard hardware, which means a given number is called out across many engines and assemblies rather than belonging to one. Cummins does not publish dimensional data against the individual washer numbers, and this particular number does not currently appear in the online retail catalogues. Order by part number only.

This matters more for a washer than for most parts, because a washer's dimensions are its entire identity. The Cummins plain washer series contains dozens of numbers that are visually identical and differ only in bore, outside diameter or thickness. Please match 3818463 against your engine's parts manual, your dealer lookup, or the Cummins bag the old washer came in — do not order this washer because it looks like the one in your hand.

If you are working from a parts manual and want help confirming this is your item, send us a message with your engine model, serial number and CPL and the callout number from your manual, and we will check it with you before you buy. If what you actually need is a washer of a specific size rather than a specific Cummins number, tell us the dimensions you need and we will measure this one and tell you honestly whether it matches.

Why Choose Cummins?

Cummins has built diesel engines since 1919, and the hardware catalogue is where the company's engineering habits are least visible and most consistent. A plain washer looks like the most interchangeable part in an engine and is not. Its bore sets how much it can float on the fastener, its outside diameter sets how widely it spreads clamping load into the material underneath, and its thickness sets how much it will dish before it stops working. Cummins assigns a number to each combination because an engine that runs for twenty thousand hours does so partly on the assumption that every clamped joint was assembled with the washer the drawing specified. It is a small thing to get right and an annoying thing to get wrong.

Returns

Returns accepted within 30 days through the eBay return request process. The part must be returned in the condition in which it was sent. Because Cummins does not publish dimensions for the individual numbers in the plain washer series, please confirm the part number against your parts manual or the old washer before ordering, or message us first and we will help you verify.

Thank you for looking at this listing. We are a small parts business and we work hard to describe every part accurately, including the condition of NOS packaging and the limits of what the factory data tells us. If anything about this part is not what you expected when it arrives, please contact us first and give us the chance to make it right. We will always work with you.

If you have a part number you are hunting for and do not see it listed, send us a message — our inventory is considerably larger than what is posted at any given moment, and we are happy to check the shelves for you.

QBS Parts, Inc — Gardena, CA