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NEW Manifold 3945189 Replaces For Cummins Engine QSB6.7 ISB QSB5.9
$453.99
Sale price
$453.99
Regular price
Available to Order
This aftermarket engine manifold provides a dependable replacement for select Cummins diesel engines and compatible equipment, helping restore the intended air or exhaust flow through the engine.
Not sure which part fits your equipment?
Our Northline Parts team can help you find the right replacement. Support Hours: Monday–Friday, 8:00 AM–5:00 PM CT | Live Chat: Available 24/7
I reached out for some replacement head bolts and they responded quickly with a few questions and cautionary information and is sending me some bolts. Great customer service! Thanks
Edward H. — Verified customer
Product Overview
The manifold routes intake air or exhaust gases through the engine system, depending on the original application. Cracking, warping, damaged mounting surfaces, or leakage can affect performance and make replacement necessary.
The listed replacement number is 3945189. Match the part number, port layout, mounting pattern, sensor or hose connections, and engine configuration with the part currently installed.
Key Features & Performance
- Supports proper sealing when installed with serviceable gaskets
- Restores the intended gas-flow path
- Helps correct leakage from a cracked or warped manifold
- Designed for compatible Cummins engine applications
Fitment & Compatibility
Compatible with Cummins Engine QSB6.7 ISB QSB5.9 applications. Serial-number breaks, production changes, or equipment options may affect the required part.
Technical Specifications
- Product Type: Engine Manifold
- Compatible Brand: Cummins
- Part Number(s): 3945189
Frequently Asked Questions
Q: How do I confirm the correct manifold? A: Match the original part number and compare the port count, bolt pattern, connection points, and complete engine model before ordering.
Q: Is this an original OEM part? A: No. It is an aftermarket component made to replace the listed part in compatible equipment.
Confirm the original part number and physical configuration before ordering, especially when multiple versions were used.