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SKU:
NLT2T01219
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Fuel Manifold 3927633 3966863 for Cummins Engine 4B3.9 B5.9 GAS PLUS CM556
$131.19
In Stock
$131.19
Sale price
$131.19
Regular price
This is a new replacement manifold for Cummins engines using fuel return manifold 3927633 / 3966863. It is built for the listed application and is a practical replacement when the original part is worn, damaged, or no longer working correctly, replacing reference numbers 3927633, 3966863.
Estimated delivery between
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Compatible Models
We do our best to list all compatible models. Although this may be the part you need, your exact model may not appear below.
Compatible equipment / model
- Cummins 4B3.9
- Cummins B5.9 GAS PLUS CM556
- Cummins 6C8.3
- Cummins B3.3
- Cummins B4.5
- Cummins QSB3.9 / QSB4.5 / QSB6.7
- Cummins ISB / ISC / ISL applications using the same return manifold
Product Overview
A cracked manifold, leaking gasket surface, soot tracks, exhaust noise, or heat damage around the manifold area can make replacement necessary on Cummins engines using fuel return manifold 3927633 / 3966863.
Inspect the mounting studs, gasket surfaces, and adjoining exhaust pieces before installation. Fixing leaks at the manifold helps restore proper exhaust flow and keeps hot gases away from nearby components.
Key Features & Performance
- New aftermarket manifold for the listed application
- Designed to replace the original component without changing the machine's basic system layout
- Built for dependable service in agricultural, construction, industrial, or power-equipment use as applicable
Replaces Part Numbers
- 3927633
- 3966863
Common Uses
- Replacing a worn or failed manifold
- Repairing equipment that shows the related operating symptoms described above
- Restoring dependable operation during scheduled repair or overhaul work
Technical Specifications
- Product Type: Manifold
- Condition: New aftermarket replacement
- Part Function: Fuel return manifold / injector return line
Installation & Fitment
- Match the original part number whenever it is available
- Compare mounting points, connectors, ports, shaft style, or gasket pattern with the original component
- Use the machine serial number and engine model when the manufacturer lists serial-number breaks
Compatibility Notice
Parts can vary by engine, serial number, production date, or equipment configuration. Verify the original component and machine information before ordering.
Frequently Asked Questions
Q: What should I check before ordering? A: Match the original part number and compare the mounting, connections, and application information with the part currently on the machine.
Q: Is this a genuine OEM part? A: No. This is a new aftermarket replacement. Brand names and OE numbers are used only to identify the intended application.
Part Summary
keywords: manifold, cummins engines using fuel return manifold 3927633 / 3966863, 3927633, 3966863
Brand names, model numbers, and reference part numbers are used for identification and compatibility purposes only. Verify the original component, dimensions, and application before purchase.