DPS 12V Cummins RV Exhaust Manifold for 1988-1998 5.9 Cummins Motorhomes & Bus
(Replaces 5.9 Cummins industrial exhaust manifold Motorhome and 12V Bus manifolds)
Fits 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 years.
** Legal for installation and street use in California, California E.O. Exemption**
- Flows 24% more than the industrial manifold
- Cools rear ports by up to 200 degrees
- T3 Turbo Exhaust Flange
- Excellent exhaust flow characteristics lower EGT’s, improves overall performance.
- Drilled/Tapped ports for pyrometer and pressure fitting.
- Black High Temperature Coating
- Comes pressed together, pressure tested and ready to install.
- Expansion joints prevent cracking
5.9 Cummins Motorhome Manifold Includes:
Stock manifolds are known to shrink significantly, causing manifold-cracking, gasket problems, and exhaust flow problems created by exhaust port misalignment. The Diesel Power Source 2-Piece 12 valve Manifold, on the other hand, allows manifold to expand and contract with heat, eliminating warping and cracking to the manifold, eliminating the dreaded manifold shrinkage.
The 2-Piece Manifold vastly improves exhaust flow allowing better fuel efficiency, quicker turbo spool-up, increasing overall horsepower and torque, and cooling the end cylinders much better. It also has a divided scroll design to improve spool-up.
This exhaust manifold is generally used on RV's Buses, and Fummins (Ford Cummins Conversions).
Replaces and fits:
- 5.9 Cummins industrial exhaust manifold
- 5.9 Cummins motorhome
- 12 valve Cummins bus engine
- 12V Cummins bus
- 12V Cummins motorhome
- 12V Cummins RV
- Cummins RV Manifold
- Cummins bus manifold
Free shipping to the lower 48 states. When shipping to anywhere outside of the lower 48 states, additional shipping fees may apply.
Q: I have a 5.9 cummins industrial exhaust manifold, how is the DPS RV exhaust manifold better for my Cummins motorhome?
A: The DPS 5.9 Cummins Motorhome manifold cools the rear cylinders by 150-200 degrees and flows much better than the factory 5.9 cummins industrial exhaust manifold. It is CFD designed and tested to outflow all other 12 valve industrial manifolds.