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**
DPS Performance Bus & RV Exhaust Manifold for 12V Cummins Motorhome. Cummins RV Manifold fits 1988-1998 Cummins bus engines and 5.9 Cummins Motorhomes. This 2-piece 5.9 Cummins industrial exhaust manifold and 12 valve cummins bus engine manifold has expansion joints. OEM 3931747, J901683, J931747
RV Exhaust Manifold Features Include:
- 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:
- All necessary bolts and hardware
- 6 Steel Gaskets
- Turbo Flange Gasket
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).
**When upgrading to the Spin Lock Bolt or Multi-Layer Gasket Kit, please note that these are upgraded components. The standard bolts and gaskets will not be included with the upgrade option.
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
