labwork 12-Pack 12mm Banjo Bolt Fuel Line Sealing Washers 3963983 for 1989-2019 Dodge Ram Cummins Diesel 5.9L 6.7L 8.3L

Key Features

• OEM Quality: 100% brand new and manufactured to premium quality standards for a perfect, leak-free seal.

• Direct Replacement: Designed as an exact fit alternative to match OEM specifications and performance at a lower cost.

• Warranty: Backed by a 1-Year Manufacturer Warranty for peace of mind.

Reference Part Number

• 3963983

Fitment & Application

Highly versatile fuel system sealing washers compatible with a wide range of Cummins diesel engines, trucks, and heavy equipment:

1. Supported Engine Models

• Cummins 5.9L / 6.7L Diesel Series: 6BT / 6BTA5.9 (12V & 24V), ISB / QSB 5.9 & 6.7 (Common Rail), and ISDE / QSB6.7 series.

• Cummins 8.3L Series: 6CT / 6CTA8.3 and ISC / QSC8.3.

• Other Extended Models: 4BT / 4BTA3.9, ISX (Single/Dual Cam), and selected ISL / QSL series engines.

2. Compatible Vehicles & Equipment

• Dodge Ram Pickups: 1989–2019 Ram 2500, 3500, 4500, and 5500 models equipped with the 5.9L or 6.7L Cummins turbo diesel engine.

• Commercial Trucks: Dongfeng Tianjin and Tianlong trucks equipped with ISDE or ISLE series engines.

• Heavy Machinery & Industrial: Loaders, excavators, power generators, and marine applications powered by Cummins 4BT, 6BT, 6CT, ISC, or ISB engines.

Package Includes

• 12 x 12mm Banjo Bolt Sealing Washers (Note: Product instruction manual is NOT included).

Important Buyer Notes

• Fitment Verification: Please verify your original part number or specific engine and bolt size before purchasing to ensure 100% compatibility.

• Professional Installation: To ensure a reliable, high-pressure fuel seal, professional installation by a certified mechanic is highly recommended.

It is the customer's responsibility to buy the right products. If you are not sure, please contact us in time.

Thank you for your cooperation.