BD Diesel Common Rail Exhaust Manifold T4 Mount (1045987-T4) for 2003-2007 Cummins 5.9L
$648.85
The BD Diesel Common Rail Exhaust Manifold T4 Mount (1045987-T4) is a performance upgrade for 2003–2007 Dodge Ram trucks with the 5.9L Cummins engine. Designed to boost exhaust flow and reduce backpressure, it features a durable cast construction and a T4 turbo flange for fitting larger turbochargers. This enhances turbo spool-up, horsepower, and torque while resisting heat-related cracking. Ideal for towing, racing, or daily driving, it ensures better engine efficiency and reliability.
The BD Diesel Common Rail Exhaust Manifold T4 Mount (1045987-T4) is a high-performance upgrade designed specifically for 2003-2007 Dodge Ram trucks equipped with the 5.9L Cummins engine. Engineered to improve exhaust flow and reduce backpressure, this manifold features a robust cast design that enhances turbo spool-up and overall engine efficiency. The T4 turbo flange allows for the installation of larger, performance-oriented turbochargers, making it ideal for enthusiasts looking to increase horsepower and torque. Its durable construction helps resist cracking caused by high exhaust temperatures, while the precision-engineered ports ensure optimal alignment and sealing. Whether for towing, racing, or daily driving, the BD Diesel T4 exhaust manifold offers a reliable and efficient solution to maximize the potential of your Cummins-powered truck.
| Weight | 25 lbs |
|---|---|
| Dimensions | 28 × 8 × 7 in |
Fitment
2003-2007 Cummins 5.9L
Features
- T4 mount with fully divided pulse manifold design
- Designed for Borg Warner SX-E T4 installs on the Cummins 5.9 and 6.7
- Cast from High-silicon ductile iron which is designed to withstand extreme temperatures and vibration
- Precision connection joint allows for expansion and contraction, preventing cracks and exhaust leaks
- Quicker turbo spool up with reduced back-pressure and increased power
- Pre-drilled for pyrometer probes
- Gaskets are available separately (1045986-T4)
Installation
INSTALL TIME
- 2 Hours 30 Minutes
WARRANTY
Parts
- 36-Months
- 75,000 Miles
Warning
This product CANNOT be shipped to California!

