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A03527 Plug Oil Blk Cat 50- - DeWalt

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$26.57
Special order is available from the date: 2025-10-14
Out of stock
SKU
A03527
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Know Before You Order

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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.

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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 A03527 Pump Oil Drain Plug is a genuine OEM replacement plug for compatible CAT pump assemblies used in DeWalt pressure washers. Cross-references CAT Pumps part number 44842.
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The DeWalt A03527 Pump Oil Drain Plug is a genuine OEM replacement component used in compatible CAT pump assemblies found on DeWalt pressure washers. Replacement-parts documentation identifies this component as “PLUG DRAIN CAT 44842,” providing a direct cross-reference to CAT Pumps part number 44842.

Product Specifications

Part Number: A03527
Part Type: Pump Oil Drain Plug
Manufacturer: DeWalt
Manufacturer Description: PLUG DRAIN CAT 44842
CAT Pumps Reference Number: 44842
Application: Pressure Washer CAT Pump Crankcase
Condition: Genuine OEM Replacement Part

Tool Compatibility

DeWalt A03527 is used with compatible CAT pump configurations found on DeWalt pressure washers including:

DeWalt DP2800 – Applicable configurations
DeWalt DPD3300 – Applicable configurations
DeWalt DPH3800 – Applicable configurations
DeWalt DPE3800X – Applicable configurations
DeWalt DPE3800X Type 1

Verify the complete pressure washer model, type number, and CAT pump configuration before ordering. Different production versions may use different pumps and crankcase components.

Part Function

The A03527 drain plug closes the oil-drain opening in the compatible CAT pump crankcase during normal operation. The plug is removed when draining the pump's lubricating oil during applicable pump maintenance and reinstalled to close the drain opening after service.

CAT Pumps Cross-Reference

DeWalt part number A03527 is identified as PLUG DRAIN CAT 44842. Customers servicing the CAT pump directly may encounter CAT Pumps part number 44842 instead of the DeWalt equipment-level number A03527.

Pump Oil vs. Engine Oil

This is a CAT pump oil drain plug, not the drain plug for the pressure washer's gasoline engine. The engine and high-pressure pump have separate lubrication systems and service components. Confirm that A03527 is specified for the CAT pump on your pressure washer before ordering.

When to Replace the Drain Plug

Replacement may be appropriate if the original drain plug is missing, damaged, has worn or damaged threads, or can no longer properly close the pump oil-drain opening.

If oil is leaking around the drain-plug area, inspect the plug, its sealing components, threads, and the surrounding pump housing before determining which component requires replacement.

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You're reviewing:A03527 Plug Oil Blk Cat 50- - DeWalt
Compatibility
  1. DeWALT Parts
  2. DeWALT Pressure Washer Parts
  3. DeWalt DPD3000IC Type 1 Parts - Pressure Washer
  4. DeWalt DPD3300 Type 1 Parts - Pressure Washer
  5. DeWalt DPH3800 Type 1 Parts - Pressure Washer
  6. DeWalt DPD3800 Type 1 Parts - Pressure Washer
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