End caps, stopcocks, plugs

MerCruiser exhaust assembly parts

In this category you will find MerCruiser exhaust assembly parts for a complete and tight exhaust assembly: end caps for exhaust manifolds, plugs and threaded plugs (NPT) for exhaust elbows/manifolds, hose connections and components for water routing such as water distributors with non-return valves. In practice, many items are procured via OEM reference numbers - use the part number search or direct purchase/quick entry to avoid assembly downtimes due to missing small parts.

End cap for exhaust manifold, MD805629A1
End cap for exhaust manifold, MD805629A1
article nr.03556

Mercruiser Ref. No. 805629A1

77,45 EUR
incl. 19% VAT
Lieferung Thu 20. Aug - Mon 24. Aug 2026 **
24 months statutory warranty
End cap for Mercruiser exhaust manifold, MD73813A1
End cap for Mercruiser exhaust manifold, MD73813A1
article nr.02610

Mercruiser ref. no. 73813A1

52,87 EUR
incl. 19% VAT
Lieferung Thu 20. Aug - Mon 24. Aug 2026 **
24 months statutory warranty
Fitting 90° for Mercruiser MCM 224 exhaust elbow, MD76170
Fitting 90° for Mercruiser MCM 224 exhaust elbow, MD76170
article nr.03618EOL

Mercuiser Ref. No. 22-76170

27,45 EUR
incl. 19% VAT
Lieferung Thu 20. Aug - Mon 24. Aug 2026 **
24 months statutory warranty
Screw set for Mercruiser exhaust manifold, MD18-8549
Screw set for Mercruiser exhaust manifold, MD18-8549
article nr.09874

Screw set for Mercruiser engine 140hp GM181 4 CYL

90,62 EUR / Set
incl. 19% VAT
Lieferung Thu 20. Aug - Mon 24. Aug 2026 **
24 months statutory warranty
(Max quantity: 1 Set)
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    Official Mercury & MerCruiser dealer
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    Order boat spare parts conveniently online 24/7

MerCruiser exhaust assembly parts: Small parts that make or break the installation
Exhaust mounting parts are typical "show-stoppers": If a plug, connection or end cap is missing, the repair is on hold - regardless of whether manifolds/risers are already available. This category therefore bundles assembly and connection components that are regularly required for MerCruiser exhaust systems.

End caps for exhaust manifolds (manifold end caps)
End caps are central wear/service positions on the exhaust manifold. The corresponding end caps are listed as separate items in your range (e.g. MD73813A1 and other variants). This is an ideal long-tail cluster for the category ("end cap exhaust manifold mercruiser", "MD73813A1").

Plugs & threaded plugs (NPT) - frequent search queries
In the exhaust area, plugs and threaded plugs (e.g. 1/8-27 NPT or 3/8-18 NPT) are common small parts. You stock both plugs for exhaust gas elbows (side) and screw plugs/threaded plugs for exhaust gas collectors. These items should be clearly labeled in the listing as "NPT thread + size" (filter + badges) because customers primarily buy by thread size.

Hose connections & water routing
Hose connections and manifold components are relevant for water-cooled exhaust systems. An example from your category is a hose connection for exhaust manifolds (MD22-866725) and a water distributor with non-return valve (863786A1). These components cover long-tails such as "hose connection exhaust manifold" or "check valve mercruiser exhaust".

Part number first & direct purchase (B2B conversion lever)
Your product pages refer to the direct purchase/quick entry: Part numbers (incl. original numbers from Volvo Penta, MerCruiser or OMC) can be transferred directly to the shopping cart - ideal for workshops. Therefore, place a prominent "Enter OEM no." block above the product list at category level.

Checklist for reducing incorrect orders

  1. Determine assembly (end cap/plug/connection/distributor) → 2) Check thread/Ø/connection type (NPT size, hose Ø) → 3) Match OEM no. → 4) Order additional gaskets (cross-link to exhaust gaskets) → 5) Use direct purchase.