• Fitment:
  • - For Mercruiser most V6 & V8 applications
  • - For various MCM/MIE GM V-6 & V-8 with center rise outlet exhaust manifold (2002 & older)
  • Note:This Is A "Wet Joint" Riser Elbow. It Will Not Fit "Dry Joint" Riser Applications
  •  
  • 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.
  •  
  • Replace OE Number: 
  • - For Mercury 44354A3, 807914A1, 807988A2 and 807988A03
  • - For Osco 4354
  • For MerCruiser 44354 807988 For Sierra 18-1976-2 Exhaust Riser 4" Elbow V6 V8

    Fitment:

    - For Mercruiser most V6 & V8 applications

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

    Note:This Is A "Wet Joint" Riser Elbow. It Will Not Fit "Dry Joint" Riser Applications

     

    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.

     

    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


    Item Specifics
    Brand Botjj
    Manufacturer Part Number 44354A3, 807914A1, 807988A2 and 807988A03
    Other Part Number 18-1976-2
    Warranty 1 Year
    Type Exhaust Manifold Riser/Elbow
    Compatible Make For MerCruiser Sierra
    Compatible Engine V6, V8 engines
    Material Cast Iron
    Fitment Type Direct Replacement
    JOINT TYPE WET JOINT
    Country of Origin United States

    Payment

    We support multiple payment methods.

    Shipping
    Notice: The Guaranteed Date is automatically generated and displayed by ebay. We can't change it and can't control the speed of delivery, it's depend on the carrier. We will ship your item out asap after the payment is clear.
    Usually your Items will be shipped within 1-3 business day after your payment is cleared.
    International orders may take 10 to 30 business days to arrive.
    We have CA, NJ  warehouses and ship items may vary according to the stock.
    Returns
    30 Days easy returns satisfaction grantee.
    Items to be returned must be in original factory condition.
    Contact Us
    Before leaving us neutral or negative feedback, please contact us first.
    We will do everything we can to give you a satisfying solution.
    Please don't open case via eBay or PayPal.
    We do our best to resolve any issue. Leaving negative feedback and low ratings doesn't get things solved.
    So please talk with us and we will not let you down.
    FeedBack

    We strive for 100% customer satisfaction! FEEDBACK IS VERY IMPORTANT TO US. We request that you contact us immediately BEFORE you give us neutral or negative feedback, so that we can satisfactorily address your concerns.

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

    Fitment:

    - For Mercruiser most V6 & V8 applications

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

    Note:This Is A "Wet Joint" Riser Elbow. It Will Not Fit "Dry Joint" Riser Applications

     

    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.

     

    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

    We support multiple payment methods.

    Shipping
    Notice: The Guaranteed Date is automatically generated and displayed by ebay. We can't change it and can't control the speed of delivery, it's depend on the carrier. We will ship your item out asap after the payment is clear.
    Usually your Items will be shipped within 1-3 business day after your payment is cleared.
    International orders may take 10 to 30 business days to arrive.
    We have CA, NJ  warehouses and ship items may vary according to the stock.
    Returns
    30 Days easy returns satisfaction grantee.
    Items to be returned must be in original factory condition.
    Contact Us
    Before leaving us neutral or negative feedback, please contact us first.
    We will do everything we can to give you a satisfying solution.
    Please don't open case via eBay or PayPal.
    We do our best to resolve any issue. Leaving negative feedback and low ratings doesn't get things solved.
    So please talk with us and we will not let you down.
    FeedBack

    We strive for 100% customer satisfaction! FEEDBACK IS VERY IMPORTANT TO US. We request that you contact us immediately BEFORE you give us neutral or negative feedback, so that we can satisfactorily address your concerns.


    All rights reserved.



    On Jun 16, 2026 at 23:55:42 PDT, seller added the following information:

    Datacaciques