DiigParr Hydraulic Steering Pump 3S4386 3S-4386 Fits for Caterpillar CAT 955K 955L Engine 3304

Part Number: CA3S4386, 3S-4386, 3S4386

Product type:Hydraulic Steering Pump for Caterpillar CAT 955K 955L 

Hydraulic Steering Pump for Engine 3304

Applications: 955K TRAXCAVATOR 61H00001-UP (MACHINE) 955K TRAXCAVATOR 64J00001-03993 (MACHINE) 955K TRAXCAVATOR 85J00001-04671 (MACHINE) 955L TRACK LOADER / POWER SHIFT / 08Y00001-UP (MACHINE) POWERED BY 3304
ENGINE 955L TRACK LOADER / POWER SHIFT / 13X00001-UP (MACHINE) POWERED BY 3304
ENGINE 955L TRACK TYPE LOADER 57M00001-UP (MACHINE) POWERED BY 3304 ENGINE 955L TRAXCAVATOR 64J03994-05182 (MACHINE) 955L TRAXCAVATOR 64J05183-07631 (MACHINE) 955L TRAXCAVATOR 64J07632-UP (MACHINE) POWERED BY 3304 ENGINE 955L TRAXCAVATOR 85J04672-06246 (MACHINE) 955L TRAXCAVATOR 85J06247-09509 (MACHINE) 955L TRAXCAVATOR 85J09510-UP (MACHINE) POWERED BY 3304 ENGINE

• DiigParr Hydraulic Steering Pump 3S4386 delivers reliable directional control for Caterpillar CAT 955K and 955L loaders.
• Engineered to OEM specifications, this pump maintains consistent pressure and flow under demanding jobsite conditions.
• Compatible with 3304 engines, it ensures responsive steering performance and reduced operator fatigue.
• Built for durability in heavy equipment applications, this replacement component restores your machine's steering precision and safety.
• Trust factory-matched quality for your fleet maintenance needs.

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.