Sierra Exhaust Manifold With Mounting Package - 18-1957-1
Ships: In 1 Business Day
Cross References
Barr
- MC-1-89011
GLM
- 51240
Mallory
- 9-40506
Marine Power
- 0991-1000
Mercruiser Stern Drive
- 807078Q07
- 807078T08
Osco
- 9011
Fitment Information
Mercruiser
- 330 GM 454 1982-1987 4 stroke 8 cylinders
- 340 MIE GM 1981-1992 340hp 4 stroke 7.4, liters 8 cylinders 454 cid
- 370 TRS GM 454 1985-1987 4 stroke 8 cylinders 454, cid
- 454 EFI GEN V GM 1993-1996 4 stroke 8 cylinders 454 cid
- 454 EFI SKI GEN V GM 1994-1996 4 stroke 8 cylinders 454 cid
- 454 MAG ALPHA GM 1986-1989 4 stroke 8 cylinders 454 cid
- 454 MAG BRAVO GEN V GM 1991-1997 4 stroke 7.4, liters 8 cylinders 454 cid
- 454 MAG BRAVO GM 1988-1992 4 stroke 8 cylinders 454 cid
- 454 MAG BRAVO MPI GEN VI GM 1996-1997 4 stroke 8 cylinders 454 cid
- 454 MAG MPI SKI GEN VI GM 1996-1997 4 stroke 8 cylinders 454 cid
- 502 EFI GEN V GM 1993-1996 4 stroke 8.2 liters 8 cylinders 502 cid
- 502 MAG BRAVO GEN V GM 1992-1993 4 stroke 8.2 liters 8 cylinders 502 cid
- 502 MAG BRAVO GM 1990-1992 4 stroke 8.2 liters 8 cylinders 502 cid
- 502 MAG MPI GEN VI GM 1996-1997 4 stroke 8.2 liters 8 cylinders 502 cid
- 7.4L BRAVO GEN V GM 1991-1996 4 stroke 7.4 liters 8 cylinders 454 cid
- 7.4L BRAVO GEN VI GM 454 1996-1997 4 stroke 7.4 liters 8 cylinders 454 cid
- 7.4L BRAVO GM 454 1988-1991 4 stroke 7.4 liters 8 cylinders 454 cid
- 7.4L MIE LH GEN V GM 1992-1996 4 stroke 7.4 liters 8 cylinders 454 cid
- 7.4L MIE LH GEN VI GM 1996-1997 4 stroke 7.4 liters 8 cylinders 454 cid
- 7.4L MIE W/B/W 1988-1992 4 stroke 7.4 liters 8 cylinders 454 cid
- 7.4L MIE W/B/W GM 1981-1987 340hp 4 stroke 7.4 liters 8 cylinders 454 cid
- 7.4L MIE W/HURTH GM 1988-1992 4 stroke 7.4 liters 8 cylinders 454 cid
- 7.4LX BRAVO MPI)(GEN V GM 1996-1996 4 stroke 7.4 liters 8 cylinders 454 cid
- 7.4LX BRAVO MPI)(GEN VI GM 454 1996-1997 4 stroke 7.4 liters 8 cylinders 454 cid
- 7.4LX BRAVO TBI)(GEN VI GM 454 1996-1997 4 stroke 7.4 liters 8 cylinders 454 cid
- 8.2L MIE GEN V GM 1993-1996 4 stroke 8.2 liters 8 cylinders 502 cid
- 8.2L MIE W/HURTH GM 1990-1993 4 stroke 8.2 liters 8 cylinders 502 cid
Please be aware that all products have a production or warehouse lead time. This is the number of business days (typically not including the day the product was ordered) that must pass before the item begins the shipping process. Please see the "Ships: In" information located within the main product description to the right of the product image and below the ADD TO CART button for that particular product's "Ships: In" timeframe.
IMPORTANT: Please note that these timeframes are estimates only based on the latest information provided to us by the manufacturer/supplier. Delays in both material, production and shipping timeframes by manufacturers can vary without advanced notice and while we do our best to keep "Ships: In" timeframes up to date we may not always be able to do so due to a variety of factors.
If a product is needed by a specific date we strongly recommend you reach out to our Sales team (1-800-869-1686) to verify shipping timeframes.
Canadian orders please add an additional 14 business days for processing and shipping. Alaska and Hawaii orders please add 1 additional warehouse processing day.
Click here to see our Standard Shipping Policy
WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov.
