Sierra Riser Spacer-3In Marine Pwr Cr - 18-1908
Ships: In 1 Business Day
Additional Details:
- Size: 3"
- For: Mercruiser GM V6 229 & 262cu.in (Models 185 & 205)
- For: Mercruiser GM Small block V8 305-350cu.in. (Models 200, 228, 230, 260 & 898)
- For: Mercruiser GM Big Block V8 454cu,in (Models 330, 340 & 7.4L)
- Use with: 18-1952-1,18-1953-2,18-1957-2 Manifolds, 18-1976-2,18-1970-2 Elbows, 18-0672,18-0897,18-2849-1
Use With:
- 18-1952-1: Manifold
- 18-1953-2: Manifold
- 18-8554: Exhaust Elbow Mounting Kit
- 18-8555: Exhaust Elbow Mounting Kit
- 18-8556: Exhaust Elbow Mounting Kit
- 18-0672: Gasket, Exhaust Elbow
- 18-0897: Gasket, Exhaust Elbow
- 18-2849-1: Gasket, Exhaust Elbow
- 18-1957-2: Manifold
- 18-1970-2: Riser Elbow
- 18-1976-2: Manifold Elbow
Cross References
Barr
- MC-20-93320A3
Mallory
- 9-40530
Mercruiser Stern Drive
- 93320
Osco
- 3320
Fitment Information
Mercruiser
- 350 MAG MPI ALPHA/BRAVO 4 stroke 5 liters 8 cylinders
- 350 MAG MPI HORIZON MIE 4 stroke 8 cylinders
- 350 MAG MPI MIE 4 stroke 8 cylinders
- 350 MAG MPI MIE GEN+ GM 350 V-8 1998-1998 4 stroke 8 cylinders 350 cid
- 350 MAG MPI SKI GEN+ GM 350 V-8 1998 AND UP 4 stroke 8 cylinders 350 cid
- 357 ALPHA 4V 2008-2009 4 stroke 8 cylinders
- 357 MAG BRAVO 4V 2008-2009 4 stroke 8 cylinders
- 383 MAG BRAVO 4V 2008-2009 4 stroke 8 cylinders
- 4.3L EFI GEN+ TBI GM 4 stroke 4.3 liters 6 cylinders 262 cid
- 4.3L GEN + 2 BBL GM 4 stroke 4.3 liters 6 cylinders 262 cid
- 4.3L GEN + 4BBL REMAN 2009-2009 4 stroke 4.3 liters 6 cylinders
- 4.3LH GEN + 4 BBL GM 4 stroke 4.3 liters 6 cylinders 262 cid
- 454 MAG MPI BRAVO GEN VI GM 1998-2019 4 stroke 8 cylinders 454 cid
- 454 MAG MPI HORIZON GEN VI GM 4 stroke 8.2, liters 8 cylinders 454 cid
- 502 MAG MPI BRAVO GEN VI GM 1998-2019 4 stroke 8.2 liters 8 cylinders 502 cid
- 5.0L 2 BBL GM 1998-1998 4 stroke 5 liters 8 cylinders 305 cid
- 5.0L EFI GM 1998-1998 4 stroke 5 liters 8 cylinders 305 cid
- 5.7L 2 BBL GM 1998-1998 4 stroke 5.7 liters 8 cylinders 350 cid
- 5.7L CARB MIE 4 stroke 5.7 liters 8 cylinders
- 5.7L COMPETITION SKI GEN+ GM 1998-1998 4 stroke 5.7 liters 8 cylinders 350 cid
- 5.7L EFI GM 1998-1998 4 stroke 5.7 liters 8 cylinders 350 cid
- 5.7L EFI MIE GM 1997-1997 4 stroke 5.7 liters 8 cylinders 350 cid
- 7.4L BRAVO MPI)(GEN VI GM 1998-1998 4 stroke 7.4 liters 8 cylinders 454 cid
- 7.4L MPI MIE L29 GEN VI GM 1998-1998 4 stroke 7.4 liters 8 cylinders 454 cid
- 8.2L MIE MPI GEN VI GM 4 stroke 8.2 liters 8 cylinders 502 cid
- BLACK SCORPION 350 MAG SKI GEN +,BLACK SCORPION 350 MAG SKI GEN+ 1997-2001 4 stroke 8 cylinders
- BLACK SCORPION MX SKI GEN +,BLACK SCORPION MX SKI GEN+ 1997-2002 4 stroke 6.2 liters 8 cylinders
- MX 6.2L MPI BRAVO 4 stroke 6.2 liters 8 cylinders
- MX 6.2L MPI MIE 4 stroke 6.2 liters 8 cylinders
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.
