DiigParr Decel Controller Assy 21W-06-21712 Fits for Komatsu PC78US-5 PC75UU-3 PC75US-3 PC75UD-3 PC60-7 PC128US-2

Part Number:21W-06-21712, 21W0621712

Applications:

Excavator: PC78US-5, PC75UU-3, PC75US-3, PC75UD-3, PC70-7-B, PC60-7-B,

PC60-7, PC158USLC-2, PC158US-2, PC128UU-2, PC128UU-1, PC128US-2, PC128US-1,

BR100JG-2, BA100-1

PC78US-5 S/N 1001-UP EXCAVATORS

PC78US-5 S/N 1001-UP (For North America) EXCAVATORS

PC75UU-3 S/N 15001-UP EXCAVATORS

PC75US-3 S/N 16307-UP EXCAVATORS

PC75UD-3 S/N 15001-UP EXCAVATORS

PC70-7-B S/N 45001-UP EXCAVATORS

PC70-7 S/N 45001-UP EXCAVATORS

PC60-7-B S/N 45001-UP EXCAVATORS

PC60-7 S/N 45001-UP EXCAVATORS

PC60-7 S/N 45001-UP (With Front Blade Spec.) EXCAVATORS

PC60-7 S/N 45001-UP (For China) EXCAVATORS

PC158USLC-2 S/N 10001-UP (Overseas Version) EXCAVATORS

PC158US-2 S/N 10001-UP EXCAVATORS

PC138US-2 S/N 1001-UP EXCAVATORS

PC128UU-2 S/N 5001-UP EXCAVATORS

PC128UU-2 S/N 5001-UP (For North America) EXCAVATORS

PC128UU-1 S/N 1001-UP EXCAVATORS

PC128US-2 S/N 5001-9500 EXCAVATORS

PC128US-2 S/N 5001-9500 (For North America) EXCAVATORS

PC128US-2 S/N 5001-9500 (For EU) EXCAVATORS

PC128US-1 S/N 1001-UP EXCAVATORS

BR100JG-2 S/N 1301-UP MOBILE CRUSHERS AND RECYCLERS

BR100JG-2 S/N 1301-UP (Overseas Version) MOBILE CRUSHERS AND RECYCLERS

BA100-1 S/N 1003-UP OTHER

Condition: new, aftermarket

• Decel Controller Assembly designed for Komatsu excavator models including PC78US-5, PC75UU-3, PC75US-3, PC75UD-3, PC60-7, and PC128US-2.
• This OEM-equivalent component regulates deceleration functions to ensure smooth hydraulic operation and precise machine control.
• Built to meet original equipment specifications for reliable performance in demanding construction and earthmoving applications.
• Part number 21W-06-21712 provides direct compatibility with your equipment.
• Essential for maintaining optimal excavator responsiveness and safety during operation.

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.