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285814-79 Valve Spring - DeWalt

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$6.78
In Stock
SKU
285814-79
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Know Before You Order

Some orders ship faster than others

We stock tens of thousands of parts in our warehouse, and most in-stock orders ship within 24 business hours. Because we specialize in hard-to-find tool parts, some items are sourced directly from the manufacturer after your order is placed and may require 10–14 business days before shipment. We believe in being transparent about timelines so you know what to expect before ordering. If timing is critical, please contact with your part number for an estimated delivery timeframe.

Why does M&M Tool Parts offer parts other companies don’t?

As a family-owned business, we’ve built long-standing relationships with trusted manufacturers across the industry. These partnerships allow us to source specialty parts that are often unavailable through larger retailers or online marketplaces. In many cases, M&M Tool Parts provides one of the few reliable ways to obtain these components — and we work hard to get them to you as quickly as possible.

What should I expect after placing my order?

Our team begins processing orders immediately. If your item is stocked locally, you’ll typically receive tracking information within 24 business hours. For manufacturer-sourced items, we coordinate directly with vendors to secure and ship your order as efficiently as possible. We understand downtime is frustrating, and we sincerely appreciate your patience while we help source parts that can often be difficult to find elsewhere.

This DeWalt 285814-79 Engine Valve Spring is a genuine OEM replacement component for the gas engine used on compatible DeWalt pressure washers, generators, and gas-powered air compressors.
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The DeWalt 285814-79 Engine Valve Spring is a genuine OEM replacement engine component used on compatible DeWalt gas-powered equipment. Manufacturer service documentation identifies this part as “VALVE SPRING.”

Product Specifications

Part Number: 285814-79
Part Type: Engine Valve Spring
Manufacturer: DeWalt
Manufacturer Description: VALVE SPRING
Application: Gas Engine Assembly
Quantity Used in DeWalt DPD3300 Type 1: 2
Condition: Genuine OEM DeWalt Replacement Part

Equipment Compatibility

DeWalt 285814-79 is documented for compatible configurations of the following equipment:

DeWalt D55672
DeWalt D55684
DeWalt DG3000
DeWalt DG3000C
DeWalt DPD3000IC
DeWalt DPD3100
DeWalt DPD3100IC
DeWalt DPD3300 Type 1

This list highlights verified DeWalt applications and may not include every compatible regional or cross-branded model. Verify the complete model and type number against the applicable manufacturer parts diagram before ordering.

Part Function

Valve spring that returns the applicable engine valve to its seated position.

When to Replace

Replace this component if inspection shows wear, cracking, deformation, contamination, leakage, loss of function, or damage that prevents correct installation. Diagnose the complete assembly before ordering because the same symptom can be caused by nearby components.

Important Compatibility Information

Part 285814-79 is documented for specific engine configurations. Do not select this component based only on equipment type, horsepower, pressure rating, physical appearance, or approximate dimensions. Similar DeWalt machines may use different engines or production revisions.

Confirm the exact equipment model, type number, and engine parts breakdown before ordering. Components that appear similar in the same diagram should not be assumed to be interchangeable unless the manufacturer documents a replacement or supersession.

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You're reviewing:285814-79 Valve Spring - DeWalt
Compatibility
  1. Dewalt D55672 Compressor
  2. DeWalt DPD3100 Type 1 Parts - Pressure Washer
  3. DeWalt DPD3300 Type 1 Parts - Pressure Washer
  4. DeWALT Parts
  5. DeWALT Generator Parts
  6. DeWALT DG3000 Type 1 Portable Generator Parts
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