DiigParr Relief Valve 204-2678 2042678 Fits For Caterpillar Cat E330D E320DL

Part number: 204-2678, 2042678

Application: Fits For Caterpillar Cat E330D, E320DL, 330C, 330C FM, 330C L, 330C MH, 330D, 330D L, 330D LN, 330D MH, 336D, 336D L, 336D LN, 336D2, 336D2 L, 336E, 336E HVG, 336E L, 336E LN, 336F L, 340D L, 340D2 L, M330D

Condition: new, aftermarket

Fitments: 

336F & 336F L Excavators DSW00001-UP (MACHINE) POWERED BY C9.3 Engine

336F L & 336F LN Excavators KCS00001-UP (MACHINE) POWERED BY C9.3 Engine

336D2 L Excavator MBP00001-UP (MACHINE) POWERED BY C9 Engine

340F Excavator RBD00001-UP (MACHINE) POWERED BY C9.3 Engine

340F Excavators WBX00001-UP (MACHINE) POWERED BY C9.3 Engine

336D2 L OEM GGH00001-UP (MACHINE) POWERED BY C9 Engine

336D2 L OEM EF300001-UP (MACHINE) POWERED BY C9 Engine

336F L & 336F LN Excavators TJE00001-UP (MACHINE) POWERED BY C9.3 Engine

340F Excavator SGH00001-UP (MACHINE) POWERED BY C9.3 Engine

336D2 L Excavator DGR00001-UP (MACHINE) POWERED BY C9 Engine

336F Mobile Hydraulic Power Unit WGF00001-UP (MACHINE) POWERED BY C9.3 Engine

336D2 L Excavator TMC00001-UP (MACHINE) POWERED BY C9 Engine

330C Excavator MSD00001-UP (MACHINE) POWERED BY C-9 Engine

330C L & 330C LN Excavators CAP00001-UP (MACHINE) POWERED BY C-9 Engine

330C & 330C L Excavators GKX00001-UP (MACHINE) POWERED BY C-9 Engine

330C & 330C L Excavators JAB00001-UP (MACHINE) POWERED BY C-9 Engine

330C L Excavator DKY00001-UP (MACHINE) POWERED BY C-9 Engine

330C L Excavator CYA00001-UP (MACHINE) POWERED BY C-9 Engine

330C Hydraulic Material Handler D3C00001-UP (MACHINE) POWERED BY C-9 Engine

330C Forest Swing Machines B4N00001-UP (MACHINE) POWERED BY C-9 Engine

330C Forest Swing Machines B1K00001-UP (MACHINE) POWERED BY C-9 Engine

330C L Material Handler MKM00001-UP (MACHINE) POWERED BY C-9 Engine

330C & 330C L Excavators JCD00001-UP (MACHINE) POWERED BY C-9 Engine

330C Forest Swing Machine B3M00001-UP (MACHINE) POWERED BY C-9 Engine

330D & 330D L Excavators EDX00001-UP (MACHINE) POWERED BY C9 Engine

330D L & 330D N Hydraulic Excavator GGE00001-UP (MACHINE) POWERED BY C-9 Engine

330D L Excavator MWP00001-UP (MACHINE) POWERED BY C9 Engine

330D L Excavator T2Y00001-UP (MACHINE) POWERED BY C-9 Engine

330D Material Handler PEL00001-UP (MACHINE) POWERED BY C9 Engine

330D L Excavators B6H00001-UP (MACHINE) POWERED BY C9 Engine

330D & 330D L Excavators EAH00001-UP (MACHINE) POWERED BY C9 Engine

330D L Mobile Hydraulic Power Unit D3D00001-UP (MACHINE) POWERED BY C9 Engine

330D Excavator ERN00001-UP (MACHINE) POWERED BY C-9 Engine

330D L Excavator HAS00001-UP (MACHINE) POWERED BY C9 Engine

M330D Excavator KRE00001-UP (MACHINE) POWERED BY C9 Engine

330C Mobile Hydraulic Power Unit MSL00001-UP (MACHINE) POWERED BY C-9 Engine

330D L Excavator MAG00001-UP (MACHINE) POWERED BY C9 Engine

330D L Mobile Hydraulic Power Unit H3D00001-UP (MACHINE) POWERED BY C9 Engine

330D L Excavator LRM00001-UP (MACHINE) POWERED BY C9 Engine

330D L Excavator R2D00001-UP (MACHINE) POWERED BY C9 Engine

336D L Excavator W3K00001-UP (MACHINE) POWERED BY C9 Engine

336D L Excavator J2F00001-UP (MACHINE) POWERED BY C9 Engine

336D L Excavator WET00001-UP (MACHINE) POWERED BY C9 Engine

336D L & 336D LN Excavator KDJ00001-UP (MACHINE) POWERED BY C9 Engine

336D & 336D L Excavators KKT00001-UP (MACHINE) POWERED BY C9 Engine

336D & 336D L Excavators JBT00001-UP (MACHINE) POWERED BY C9 Engine

336D L Excavators M4T00001-UP (MACHINE) POWERED BY C9 Engine

336D L Excavator JBF00001-UP (MACHINE) POWERED BY C9 Engine

336D L Excavator DTS00001-UP (MACHINE) POWERED BY C9 Engine

336D & 336D L Excavators PGW00001-UP (MACHINE) POWERED BY C9 Engine

336D L & 336D LN Excavators MYG00001-UP (MACHINE) POWERED BY C9 Engine

336E L & 336E LN Excavators TMZ00001-UP (MACHINE) POWERED BY C9.3 Engine

336E L Excavators BZY00001-UP (MACHINE) POWERED BY C9.3 Engine

336D L Excavator LMG00001-UP (MACHINE) POWERED BY C9 Engine

336D L Excavator JWR00001-UP (MACHINE) POWERED BY C9 Engine

336E L Excavators FJH00001-UP (MACHINE) POWERED BY C9.3 Engine

336D & 336D L Mobile Hydraulic Power Units M3M00001-UP (MACHINE) POWERED BY C9 Engine

340D L Excavator JTN00001-UP (MACHINE) POWERED BY C9 Engine

336E & 336E L Excavators CMR00001-UP (MACHINE) POWERED BY C9.3 Engine

336D L Excavator PTB00001-UP (MACHINE) POWERED BY C9 Engine

336D L Excavator MDS00001-UP (MACHINE) POWERED BY C9 Engine

336D L Excavator ZML00001-UP (MACHINE) POWERED BY C9 Engine

336D L Mobile Hydraulic Power Unit L5X00001-UP (MACHINE) POWERED BY C9 Engine

336D L Mobile Hydraulic Power Unit J6D00001-UP (MACHINE) POWERED BY C9 Engine

336D L Mobile Hydraulic Power Unit JRX00001-UP (MACHINE) POWERED BY C9 Engine

336D LN Mobile Hydraulic Power Unit L5K00001-UP (MACHINE) POWERED BY C9 Engine

336E Mobile Hydraulic Power Unit T3Z00001-UP (MACHINE) POWERED BY C9.3 Engine

336E L HVG UHD Mobile Hydraulic Power Unit RBS00001-UP (MACHINE) POWERED BY C9.3 Engine

336D2 & 336D2 L Excavators TLY00001-UP (MACHINE) POWERED BY C9 Engine

336D2 & 336D2 L Excavators EF

• DiigParr Relief Valve 204-2678 is engineered for Caterpillar E330D and E320DL excavators, delivering precise pressure regulation in hydraulic systems.
• This OEM-compatible component maintains optimal system performance by controlling fluid pressure and preventing damage from excessive loads.
• Built to meet Caterpillar specifications, it ensures reliable operation in demanding construction and earthmoving applications.
• Direct fit replacement for seamless installation on compatible models.

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.