DiigParr Fuel Transfer Pump 3137770 313-7770 Fits for Caterpillar CAT 3508 3512 3512B 3512C 3512E 3516 3516B 3516C Engine 777C 785G 793B 776C 994

Part Number: CA3137770, 313-7770, 3137770 

Product type:Fuel Transfer Pump for Caterpillar CAT 3508 3512 3512B 3512C 3512E 3516 3516B 3516C

Fuel Transfer Pump for Engine 777C 785G 793B 776C 994

Condition: new, replacement 

Applications: GEN SET ENGINE: 3508, 3508B, 3512, 3512B, 3516, 3516B 

GENERATOR SET: 3508, 3508B, 3508C, 3512, 3512B, 3512C, 3516, 3516B, 3516C 

INDUSTRIAL ENGINE: 3508, 3508B, 3512, 3512B, 3512C, 3516, 3516B 

LOCOMOTIVE ENGINE: 3508B, 3508C, 3512, 3512B, 3512C, 3516B, 3516C 

MARINE AUXILIARY: 3508B, 3508C, 3512B, 3512C, 3516B, 3516C 

MARINE ENGINE: 3508, 3508B, 3508C, 3512, 3512B, 3512C, 3516, 3516B, 3516C 

MINING EXCAVATOR: 5130B, 5230, 5230B 

PETROLEUM ENGINE: 3508B, 3508C, 3512, 3512B, 3512C, 3516C 

PETROLEUM TRANSMISSION: TH48-E80, TH55-E70 

POWER MODULE: 3516C, PM3508, PM3512, PM3516, PP3516, XQC1200, XQC1600 

PUMPER: SPF343, SPF343C, SPS343, SPT343 

TRACK-TYPE TRACTOR: D11N, D11R 

TRACTOR: 776C, 776D, 784C TRUCK: 777, 777B, 777C, 777D, 785, 785B, 785C, 785D, 789B, 789C, 793C, 793D, 797, 797B 

VEHICULAR ENGINE: 3508, 3512 

WHEEL DOZER: 854G 

WHEEL LOADER: 992G, 994D, 994F

• The DiigParr Fuel Transfer Pump (3137770/313-7770) is engineered for heavy-duty performance in Caterpillar CAT engines including the 3508, 3512, 3512B, 3512C, 3512E, 3516, 3516B, and 3516C series.
• This OEM-compatible component ensures reliable fuel delivery to your equipment, whether operating in 777C, 785G, 793B, 776C, or 994 machines.
• Built to meet stringent industrial specifications, this pump delivers consistent pressure and flow rates critical for engine efficiency and longevity.
• Ideal for fleet maintenance, equipment rebuilds, and replacement applications where precision engineering matters.

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.