Skip to content

DiigParr Fits For Komatsu Excavator PC78MR-6 PC78US-6 PC78UU-6 Hydraulic Radiator Assembly 21W-03-41110

SKU DP25121215
Original price $506.39 - Original price $506.39
Original price $506.39
$506.39
$506.39 - $506.39
Current price $506.39
Availability:
In stock
Request a Quote

DiigParr Fits For Komatsu Excavator PC78MR-6 PC78US-6 PC78UU-6 Hydraulic Radiator Assembly 21W-03-41110

Part number: 21W-03-41110

Application: Fits Komatsu Excavator PC78MR-6 PC78US-6 PC78UU-6

Specification:Core Dimensions(mm):525 527 50

Fitment Details:

PC78MR-6 S/N 1001-UP (For EU) EXCAVATORS

PC78MR-6 S/N 1001-UP (For North America) EXCAVATORS

PC78US-6 S/N 4001-UP (For North America) EXCAVATORS

PC78US-6 S/N 4001-UP (For Norway) EXCAVATORS

PC78US-6 S/N 4001-UP (Overseas Version) EXCAVATORS

PC78US-6 S/N 4001-UP EXCAVATORS

PC78UU-6 S/N 22001-UP EXCAVATORS

  • Engineered for Komatsu PC78 series excavators, this hydraulic radiator assembly delivers reliable thermal management under demanding jobsite conditions.
  • The 21W-03-41110 unit efficiently dissipates heat from hydraulic systems, maintaining optimal fluid temperatures for peak equipment performance.
  • Compatible with PC78MR-6, PC78US-6, and PC78UU-6 models, this OEM-specification component ensures proper cooling capacity and system longevity.
  • Built to withstand heavy-duty excavation operations, it's an essential replacement for maintaining your machinery's efficiency and preventing costly downtime.

Orders are delivered within 4–9 business days, including 1–2 business days for processing and 3–7 business days for shipping, depending on the destination and carrier.

We currently ship within the United States only.

Shipping Carriers
We ship via trusted carriers such as FedEx, DHL, and UPS.

Shipping Charges (USA Orders)

Orders over $299: Free shipping.

Orders $299 or below: Flat shipping fee of $28.99.

Return &Refund policy

We want you to be completely satisfied with your purchase. If for any reason you are not, you may request a return within 30 days from the date of delivery.

Return Conditions

  • All returns require a Return Authorization Number (RAN), which you can obtain by contacting our customer service team.
  • Items must be returned in their original condition and packaging.
  • Returns must be shipped back within 30 days after the RAN is issued.
  • Customers are responsible for return shipping costs unless the return is due to our error (e.g., incorrect or defective item).

Return Label

  • Once your return request is approved, we will provide a return shipping label.
  • The label can be downloaded and printed from the instructions sent to your email.
  • The cost of return shipping is the customer’s responsibility, unless the return is due to our error (e.g., incorrect or defective item).

Restocking Fee

  • A 10% restocking fee may apply to returns that are not the result of our error.

Defective or Damaged Items

  • If your item arrives damaged or defective, please contact us immediately.
  • Returned items will be inspected. If confirmed defective, we will, at our discretion:Replace the item at no cost, orIssue a full refund including shipping costs.
  • If the item is found to be in working condition, the standard restocking fee may apply.

Non-Returnable Items

  • Items damaged due to misuse, alteration, or improper handling cannot be returned or refunded.

How to Request a Return

To request a return, please contact our customer service team with:

  • Order number
  • Part number & product description
  • Photos of the product and packaging
  • Reason for return

Refund Processing

  • Refunds are issued to the original payment method.
  • Please allow 5–10 business days after we receive your return for processing.

Warranty: Our parts are covered for 6 months warranty without limitation on miles or hours of operation. Our parts are warranted on a parts-replacement-only basis. For more information, please view our warranty policy.