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Home Shop By Engine Parts & Anodes Engine Components Manifolds & Risers Sierra 18-1949 | Manifold Riser Spacer
Sierra 18-1949 | Manifold Riser Spacer
Sierra

Sierra 18-1949 | Manifold Riser Spacer

SKU
Save 29% Save 29%
$209.99
$209.99 - $209.99
$209.99
$149.99
$149.99 - $149.99
$149.99
Availability In Stock In Store - Online Only 4 This item is stored in an external warehouse. Online orders will be shipped direct to the shipping address or available for in-store pickup typically within 1-3 days.
Unavailable for Same-Day Pickup or Local Delivery

Substitute Options

Barr Marine 20-0097 | Exhaust Manifold Hardware & Accessories
Barr Marine 20-0097 | Exhaust Manifold Hardware & Accessories $172.99 In Stock

30-Day Return Policy | See Details.

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Prevent backflow and clearance issues with a spacer.

In combatting exhaust back-flow or clearance issues, a spacer can make a big difference. Sierra spacers provide extra height to exhaust risers and help prevent water from traveling back into the riser when throttling down. Installation of a spacer can also provide added clearance for exhaust hose routing. Engineered to be compatible with manifolds used on many Ford and GM based V8 marine engines these spacers feature CNC machined mating surfaces to eliminate additional preparation to establish a proper seal. Sierra uses special casting techniques to create risers with uniform wall thickness and leak tests each spacer prior to paint to ensure quality. For a solution to complex exhaust issues, look to Sierra spacers.

Key Features

  • Engineered to meet or exceed OEM specifications
  • Adds height to exhaust elbow to prevent back-flow issues or add exhaust hose clearance
  • Compatible with Small Block Ford based V8 (302 and 351 cu.in.) and Small Block (305 and 350 cu. in.) and Big Block GM based V8 (454 cu. in.) marine engines
  • Backed by SeaStar Solutions Limited Two-Year Warranty

18-1949 Application Guide

Application OEM Part Number
Barr CM 20-0097
GLM 56030
Mallory 9-40130
Osco 994-S3

The Sierra Engine Parts Selector

In addition to riser extensions, we offer a wide variety of other engine parts manufactured by Sierra. To see if we have the part you need, see our Engine Parts Selector, where you can search by engine make, serial number and model or year of manufacture.

Features & Specifications

  • Manufacturer Part Number: 18-1949

Brand: Sierra

WARNING: This product MAY expose you to chemicals, which are known to the State of California to cause cancer, birth defects and/or other reproductive harm. For more information go to www.p65warnings.ca.gov

Weight:
Dimensions: x x
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Backorder Policy: Occasionally, due to demand or supplier delays, some items may be temporarily out of stock or non-stock items. To ensure you can still get the products you need, you can order items even when they're out of stock. Our sales team will update you with the shipping lead time. Once back in stock, we promptly ship your item, and if your order includes both in-stock and backordered items, we may split the shipment. You can cancel your backorder before shipment, and request a refund to original payment method. For any inquiries, contact us at sales@freeportmarine.com.

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