• Description:
  • -Condition: 100% Brand New 
  • -Type: 4 inch exhaust elbow
  • -Accepts 4 in. inside diameter exhaust hose
  • -Includes 18-0897 gasket, 18-4263 pipe plug, and 18-4258 pipe plug
  • -Direct Replacement, Easy Installation
  • -Professional installation is recommended. 
  •  
  • Fitment：
  • - For Mercruiser most V6 & V8 applications
  • - Fits For various MCM/MIE GM V-6 & V-8 with center rise outlet exhaust manifold (2002 & older)
  •  
  • Replace OE Number: 
  • - For Mercury 44354A3, 807914A1, 807988A2 and 807988A03
  • - For Osco 4354
  • - For Sierra 18-1976 and 18-1976-1
  •  

    • Exhaust Riser 4" Elbow V6 V8 For MerCruiser 44354 807988 18-1976-2 For Sierra

    Description:

    -Condition: 100% Brand New 

    -Type: 4 inch exhaust elbow

    -Accepts 4 in. inside diameter exhaust hose

    -Includes 18-0897 gasket, 18-4263 pipe plug, and 18-4258 pipe plug

    -Direct Replacement, Easy Installation

    -Professional installation is recommended. 

     

    Fitment：

    - For Mercruiser most V6 & V8 applications

    - Fits For various MCM/MIE GM V-6 & V-8 with center rise outlet exhaust manifold (2002 & older)

     

    Replace OE Number: 

    - For Mercury 44354A3, 807914A1, 807988A2 and 807988A03

    - For Osco 4354

    - For Sierra 18-1976 and 18-1976-1

     

    Package Include:
    -1* 4 inch exhaust elbow

    -1* Gasket
    -Bolts to install Riser (As Pics Shown)

    -W/o Product Instruction



    Payment

    Shipment

    Usually we arrange shipping in 3 business day after payment confirmed.
    Orders will be shipped out via Carrier USPS or FedEx .

    Delivery time :

    When you find track information is abnormal or not get goods , please feel free to email contact us first for troubleshooting, Don"t open dispute case immediately Please.

    Warrenty & RMA

    Warranty for defective items (excluding items damaged and/or misused after receipt).
    In order to return an item you must contact us to request a RMA No.
    Please returned items in the original packaging, fill in RMA number on package, and PROVIDE us reason for the return, and your eBay ID.

    Service & Contact

    We hope you have a pleasant shopping experience with us and satisfy 100%.
    If there are any item or delivery problems, please email contact us first, BEFORE you leave neutral or negative feedback, or 1,2,3 ratings, so that we can address your concerns. Please give us the opportunity to resolve any problem.
    Usually, we response your email in 1 business day.

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    Exhaust Riser 4" Elbow V6 V8 For MerCruiser 44354 807988 18-1976-2 For Sierra


    Usually we arrange shipping in 3 business day after payment confirmed.
    Orders will be shipped out via Carrier USPS or FedEx .

    Delivery time :

    When you find track information is abnormal or not get goods , please feel free to email contact us first for troubleshooting, Don"t open dispute case immediately Please.

    Warranty for defective items (excluding items damaged and/or misused after receipt).
    In order to return an item you must contact us to request a RMA No.
    Please returned items in the original packaging, fill in RMA number on package, and PROVIDE us reason for the return, and your eBay ID.

    We hope you have a pleasant shopping experience with us and satisfy 100%.
    If there are any item or delivery problems, please email contact us first, BEFORE you leave neutral or negative feedback, or 1,2,3 ratings, so that we can address your concerns. Please give us the opportunity to resolve any problem.
    Usually, we response your email in 1 business day.

    [ Default Others: This is the contents of your Others. You can add a banner for this Others as header and add text descriptions here. The text descriptions can be different Font Size, Font Color, Style and even graphics and icons are also accepted. ]


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    On Nov 3, 2026 at 02:01:48 PST, seller added the following information:

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