DiigParr 4 PCS Fuel Injector 5I-7706 5I7706 10R-7599 10R7599 Fits for Caterpillar CAT Engine 3064 3066 S4KT S6KT

Replace Part Number:5I-7706, 10R-7599, 5I7706, 10R7599, CA5I7706, CA10R7599

Condition: new, aftermarket

Engine Model:

Fit for Caterpillar CAT Engine 3064, 3066

Fit for Mitsubishi Engine S4KT, S6KT

Applications:

Fit for Caterpillar CAT Excavator: 311, 311B, 312, 312B, 320, 320 L, 320B,320B FM LL, 320B L, 320B U, 320N, 321B

Fitment details:

311 SUPPLEMENT FOR TRACK-TYPE EXCAVATOR /67 HP DERATED/ 9LJ00001-UP (MACHINE)

311 TRACK-TYPE EXCAVATOR 9LJ00001-UP (MACHINE) POWERED BY 3064 ENGINE

311 TRACK-TYPE EXCAVATOR 9LJ00262-UP (MACHINE) POWERED BY 3064 ENGINE

311B TRACK-TYPE EXCAVATORS 2LS00001-UP (MACHINE) POWERED BY 3064 ENGINE

312 TRACK-TYPE EXCAVATOR 6GK00001-UP (MACHINE) POWERED BY 3064 ENGINE

312 TRACK-TYPE EXCAVATOR 6GK00393-UP (MACHINE) POWERED BY 3064 ENGINE

312B & 312B L TRACK-TYPE EXCAVATORS 2NS00001-UP (MACHINE) POWERED BY 3064 ENGINE

320, 320L & 320N TRACK-TYPE EXCAVATORS 1XM00001-UP (MACHINE) POWERED BY 3066 ENGINE

320, 320L TRACK-TYPE EXCAVATORS 1KL00001-UP (MACHINE) POWERED BY 3066 ENGINE

320, 320L TRACK-TYPE EXCAVATORS 2DL00001-00213 (MACHINE) POWERED BY 3066 ENGINE

320B & 320B L Excavators 4XW00001-UP (MACHINE) POWERED BY 3066 Engine

320B & 320B L TRACK-TYPE EXCAVATORS 5BR00001-UP (MACHINE) POWERED BY 3066 ENGINE

320B FOREST MACHINE 6LS00001-UP (MACHINE) POWERED BY 3066 ENGINE

320B N TRACK-TYPE EXCAVATOR 4NR00001-UP (MACHINE) POWERED BY 3066 ENGINE

320B U 320B LU TRACK-TYPE EXCAVATORS BAN00001-UP (MACHINE) POWERED BY 3066 ENGINE

321B LCR TRACK-TYPE EXCAVATORS 9CZ01002-01003 (MACHINE) POWERED BY 3066

322B L TRACK-TYPE EXCAVATOR /HAMMER ARRANGEMENT, / 1ES00001-UP (MACHINE) POWERED BY 3066 ENGINE

• Precision fuel injectors engineered for Caterpillar diesel engines.
• This 4-piece set features OEM-equivalent components (5I-7706 and 10R-7599) designed to restore optimal fuel atomization and combustion efficiency in 3064, 3066, S4KT, and S6KT engine models.
• Direct replacement injectors ensure reliable cold starts, reduced emissions, and consistent power delivery.
• Compatible with both industrial and heavy equipment applications requiring factory-specification performance.

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.