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SIERRAMARINE 18-1976-2 MANIFOLD ELBOW

SIERRAMARINE 18-1976-2 MANIFOLD ELBOW

Vendor: SIERRAMARINE
SKU: S5M1819762
Availability: 22 In Stock
Product Type: MARINE EXHAUST MANIFOLD RISER
$270.30 CAD
$271.67
$270.30 CAD
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Description
Description
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Sierra Marine · Exhaust Elbow

Sierra Marine 18-1976-2 MerCruiser Exhaust Elbow

A single 4-inch, 7-degree cast-iron centre-rise elbow for specified 2002-and-older MCM/MIE GM V6 and V8 marine exhaust systems.

Product Description

Sierra 18-1976-2 is a black cast-iron exhaust manifold elbow/riser for specified MerCruiser MCM/MIE GM V6 and V8 engines with centre-rise outlet manifolds. Current application data limits the broad description to 2002 and older systems and identifies a 4-inch hose outlet with a 7-degree elbow.

Marine exhaust parts must match the engine, serial range, manifold family, outlet size and water passages. Verify the existing casting and Sierra application chart before removal.

Compatibility & Key Features

  • MCM/MIE GM V6 and V8 centre-rise outlet exhaust manifolds, 2002 and older, where 18-1976-2 is specified.
  • 4-inch hose connection and 7-degree configuration.
  • Cast-iron construction for marine exhaust service.
  • Common cross-reference applications include selected Mercury 44354A3/807988A-series systems; confirm the exact OEM number and serial range.
  • Not a universal elbow for every GM-based marine engine.

Frequently Asked Questions

Q: Which engines use 18-1976-2?

A: Specified 2002-and-older MerCruiser MCM/MIE GM V6 and V8 engines with centre-rise outlet manifolds; verify serial-range application.

Q: What outlet size is it?

A: It is listed with a 4-inch hose connection.

Q: Is it a straight riser?

A: The exact part is described as a 7-degree elbow/riser.

Q: Is the gasket included?

A: Yes. Current package data lists an exhaust-elbow gasket, pipe plug and riser bolts.

Q: Is the exhaust manifold included?

A: No. This listing is for one elbow/riser package.

Q: Can it replace any MerCruiser elbow?

A: No. Match engine family, year/serial range, manifold and OEM cross-reference.

Q: Should both sides be inspected?

A: Yes. On multi-bank engines, inspect both exhaust paths and cooling passages even if replacing one elbow.

Q: Is professional installation recommended?

A: Yes, especially where corrosion, water passage condition or engine serial identification is uncertain.

More product details & helpful resources

Resources

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Shipping
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SHIPPING & DELIVERY INFORMATION

Free Shipping

  • Eligibility: Orders over $99 in the USA & Canada.
  • Exceptions: Oversized or heavy items may incur extra fees (we’ll notify you before shipping).
  • Non-Eligible Areas: Vancouver Island, Yukon, NWT, Nunavut, Alaska, Hawaii, Puerto Rico & other U.S. territories.

Fast Shipping

  • Processing: Orders placed before 2 PM usually ship the same day.
  • Delivery Time: 2–5 business days via Purolator, FedEx, or Loomis Express.
  • Note: Delivery may take longer for distant warehouses or inter-warehouse transfers.

Shipping Limitations

  • No P.O. Boxes: Please provide a physical address.
  • Remote Areas: Free shipping excludes remote regions.

Special Orders & Backorders

  • May incur additional handling fees (discussed before shipping).
  • You may cancel if costs are too high for a full refund.

Warranty

  • For internal damage or missing parts, contact the manufacturer directly for faster service.
  • After 30 days, contact the manufacturer first — if unresolved, our team will assist.

Oversized Items

  • Shipped via LTL Freight (items over 150 lbs or large dimensions).
  • We’ll confirm any added costs before shipping.
  • Examples: Large Fridges, Oversize Toolbox or Tanks, Drop in Bed liners, Wheel to Wheel Step bar & Running Boards, Large Roof Cargo Box, Heavy Bumpers, RV Doors, Oversize, Roof Tent, Large gas tank, Oversize Grille Guards, Fifth Wheel Hitch, Sofa , Trailer Axle.
  • Special Handling Fees: Items like batteries may incur additional shipping fees.

Returns & Cancellations

In-Stock Items

  • Cancel before shipment; once shipped, standard return policy applies.
  • 20% restocking fee, excluding oversize item. Both way shipping is customer responsibility under store error.

Backorders / Special Orders

  • 5% restocking fee applies if canceled within 30 days.
  • Non-cancellable once shipped from the manufacturer.
  • Refused Deliveries: Refund minus shipping & restocking fees (excludes special orders).
  • Payment Disputes: Chargebacks do not cancel orders — please contact us directly.

Core Fees

  • Not included in the purchase price.
  • Refundable upon return of the old part in usable condition.

If you have any questions or need assistance, please reach out to us at 800.292.4173 or support@mytruckpoint.ca.

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