Replace your leaky, warped factory exhaust manifold with this heavy duty, jointed manifold from BD-Power for your Cummins motorhome! Heavy duty exhaust manifold for motor homes with the Cummins 5.9L engines that are made from high-silicon ductile iron and are designed to withstand extreme temperatures and vibration. Connection joints that allow for expansion and contraction without cracking or exhaust leaks while offering quicker turbo spool up, reduced backpressure, increased power and better fuel economy. The kit includes stainless steel fasteners and washers to prevent lost or loose manifold bolts, and gaskets are available separately, see options from the drop down menu.
OE Replacement Part Numbers:
No Shipping To CA
OE Replacement Part Numbers:
- Common Rail (BD PN 1045987) Replaces OE 3967995, 3943871, 3943875
- Please confirm your OE replacement part number for 24 valve and Common Rail applications as we have seen several manifold configurations that will need to be confirmed for correct fitment.

Specifications
- Dimensions27 6.5 5
- ManufacturerBD-Power
- MPN1045989 | HD-1045987 | 1045981
WARNING: CANCER AND REPRODUCTIVE HARM
www.P65Warnings.ca.gov
FEATURES & BENEFITS:
- Cast from high-silicon iron to withstand extreme temperatures and vibration
- Connection joints allow for expansion and contraction without cracking
- Stainless steel fasteners and washers included prevent lost or loose manifold bolts
- Change your leaky manifold and improve turbo spool up and increased power
NO VIDEOS AVAILABLE
Blog Posts
Recommended Products
Recently Viewed
Loyalty Rewards
- For each dollar that you spend with us, we reward you with points and we have created three tiers for how many points you'll receive per dollar spent based upon which tier you're in.
-
Diesel Insider ($0-599 spent in the last year):
1 point per $1.00 spent -
Diesel Elite ($600-1199 spent in the last year):
1.2 points per $1.00 spent -
Diesel Expert ($1,200+ spent in the last year):
1.5 points per $1.00 spent - You must create an account or be logged-in to receive loyalty funds
Added To Cart

BD Heavy Duty Exhaust Manifold Cummins 5.9L Motorhome
Quantity: 0
Cart Total$0000.00