Fuel Injector Supply Tube Line Kit 3960783 3960784 for Cummins Engine 6B5.9 6BT 5.9L 1991-1993 Dodge Pickup
Fuel Injector Supply Tube Line Kit for Engine,Vehicle
Engine,Vehicle Fuel Injector Supply Tube Line Kit
Fuel Injector Supply Tube Line Kit compatible with Engine,Vehicle
 Fuel Injector Supply Tube Line Kit For Dodge
FridayParts Fuel Injector Supply Tube Line Kit

Fuel Injector Supply Tube Line Kit 3960783 3960784 for Cummins Engine 6B5.9 6BT 5.9L 1991-1993 Dodge Pickup

1 Review Add Your Review
US$76.99
Get at least 2% points for cashback & save up to 10%! View Details
Choose options for shipping rates.
Shipping to
SKU#: FPZY2509200
In Stock
Add to Wish List
100k+ Customers' Top Choice
Chosen by over 100,000 customers for trusted quality and exceptional service.
1 Year Warranty
Enjoy a full year of warranty, ensuring long-lasting reliability and peace of mind.
90-Day Return
Hassle-free 90-day return policy for a risk-free shopping experience.
24/7 Service
Round-the-clock support to assist you whenever you need it.
Product Details

Fuel Injector Supply Tube Line Kit 3960783 3960784 for Cummins Engine 6B5.9 6BT 5.9L 1991-1993 Dodge Pickup

Replacement Part Number: 3960783, 3960784, 3909439

Fit For Cummins Engine: 6B5.9, 6BT, 6B, 5.9L

Applications:
Fit For 1991-1993 Dodge Pickup Truck

Content:
1 x Injector Fuel Supply Tube, 3960784
1 x Injector Fuel Supply Tube, 3960783

Product Highlights
Brand: FridayParts
Compatible Engine Brand: For CUMMINS
Engine Number: 6B5.9, 6BT, 6B
Replacement Part Number: 3909439, 3960783, 3960784
Shipping
Ships to:
Delivery:
Choose options for shipping rates.
Customer Reviews
5 5 out of 5
5 stars
100%
4 stars
0%
3 stars
0%
2 stars
0%
1 star
0%

Top Reviews

user
Dan Wilkins
Reviewed on 11/09/2025
Stopped My Cummins Leak Perfectly

My '92 Dodge with the 5.9L had developed multiple fuel leaks from the old brittle supply lines. This kit was exactly what I needed to get it fixed right. The quality is immediately noticeable - the lines are heavy-duty steel with perfect bends and the fittings are precisely machined. Everything arrived well-packaged and complete. Installation was straightforward since everything matched the factory routing exactly. No struggling to make lines fit or dealing with poorly made connectors. The flare nuts tightened up smoothly and sealed perfectly on the first try. No more diesel smell or drips in my driveway. The truck now runs smoothly with consistent fuel pressure. This is a quality kit that solved my problem completely. For any Cummins owner dealing with fuel line issues, this is definitely the way to go. Great product that saved me from buying more expensive individual components.

Was this review helpful?
0
0
1
Questions and Answers
Loading...