null

New name, same great NuWave team!

Mercruiser 7.4 454 & 502 Gaskets and Bolts

Mercruiser 7.4 454 & 502 Gaskets and Bolts

Mercruiser 7.4 454 & 502 Gaskets and Bolts
  • Product
  • Qty in Cart
  • Quantity
  • Price
  • Subtotal
  • OEM MerCruiser 454 / 7.4  Manifold mounting bolt 10-37612

    OEM MerCruiser 454 / 7.4 Manifold mounting bolt 10-37612

    Mercury Marine / Quicksilver

    $2.40 $1.86
    New OEM MerCruiser Big block manifold mounting bolt 454 /502 Each manifold requires 8 of these bolts
    Part Number:
    710-10-37612
    Availability:
    In Stock - Ships same or next business day.
    $2.40 $1.86
    Qty in Cart: 0
    Quantity:
    Price:
    $2.40 $1.86
    Buy this product to earn $0.06 in Store Credit
    Subtotal:
  • OEM MerCruiser 4" Exhaust Riser elbow mounting bolt 10-43749

    OEM MerCruiser 4" Exhaust Riser elbow mounting bolt 10-43749

    Mercury Marine / Quicksilver

    $8.50 $6.59
    OEM MerCruiser Exhaust Riser mounting bolts Fits 4.3 , small block, and big block MerCruiser engines with 4" Riser Elbows Will not work for dry joint (2002+) Not for riser mounted remote oil filter! see other listings
    Part Number:
    710-10-43749
    Availability:
    In Stock - Ships same or next business day.
    $8.50 $6.59
    Qty in Cart: 0
    Quantity:
    Price:
    $8.50 $6.59
    Buy this product to earn $0.20 in Store Credit
    Subtotal:
  • Sold out - Special order may be available, please call 856-232-6969 ext1
    On Sale
    OEM MerCruiser Full Flow Riser Elbow Gasket 27-863726

    OEM MerCruiser Full Flow Riser Elbow Gasket 27-863726

    Mercury Marine / Quicksilver

    $17.40 $12.43
    OEM MerCruiser Full Flow Riser Elbow Gasket 27-863726 Factory gasket that goes between the manifold and riser. Used on GM V6 and V8 engines. This is the Completely open gasket for Full Flow engines only! Exhaust elbow gasket 863726 is the standard...
    Part Number:
    710-27-863726
    Availability:
    In Stock - Ships same or next business day.
    Qty in Cart: 0
    Price:
    $17.40 $12.43
    Buy this product to earn $0.37 in Store Credit
    Subtotal:
  • OEM MerCruiser Restricted Riser Elbow to Manifold Gasket 27-863724

    OEM MerCruiser Restricted Riser Elbow to Manifold Gasket 27-863724

    Mercury Marine / Quicksilver

    $17.60 $13.11
    OEM MerCruiser Restricted Riser Elbow Gasket 27-863724 Exhaust elbow gasket 863724 is the standard cooling, restrictor gasket. This gasket is for use on V-6 and V-8 MerCruiser stern drives and inboard engines (1981 through 1997) made by General motors...
    Part Number:
    710-27-863724
    Availability:
    In Stock - Ships same or next business day.
    $17.60 $13.11
    Qty in Cart: 0
    Quantity:
    Price:
    $17.60 $13.11
    Buy this product to earn $0.39 in Store Credit
    Subtotal:
  • OEM MerCruiser Block off riser elbow Gasket 27-8637251

    OEM MerCruiser Block off riser elbow Gasket 27-8637251

    Mercury Marine / Quicksilver

    $18.90 $14.08
    OEM MerCruiser Block off riser elbow Gasket 27-8637251 Factory gasket that goes between the manifold and riser. Used on GM V6 and V8 engines. This is the Completely blocked off gasket for closed cooling engines only! Exhaust elbow gasket 8637251 is...
    Part Number:
    710-27-863725 1
    Availability:
    In Stock - Ships same or next business day.
    $18.90 $14.08
    Qty in Cart: 0
    Quantity:
    Price:
    $18.90 $14.08
    Buy this product to earn $0.42 in Store Credit
    Subtotal:
  • OEM MerCruiser DRY JOINT Restricted riser elbow Gasket 27-864850a02

    OEM MerCruiser DRY JOINT Restricted riser elbow Gasket 27-864850a02

    Mercury Marine / Quicksilver

    $58.25 $49.99
    OEM MerCruiser DRY JOINT Restricted riser elbow Gasket 27-864850a02 Exhaust elbow gasket 864850A02 is for use on 2002 and newer V-6 and V-8 MerCruiser stern drive and inboard engines with dry joint exhaust manifolds. This is a restrictor style gasket...
    Part Number:
    710-27-864850A02
    Availability:
    In Stock - Ships same or next business day.
    $58.25 $49.99
    Qty in Cart: 0
    Quantity:
    Price:
    $58.25 $49.99
    Buy this product to earn $1.50 in Store Credit
    Subtotal:
  • OEM MerCruiser DRY JOINT riser elbow Full Flow Gasket 27-864547a02

    OEM MerCruiser DRY JOINT riser elbow Full Flow Gasket 27-864547a02

    Mercury Marine / Quicksilver

    $58.17 $49.99
    OEM MerCruiser DRY JOINT riser elbow Full Flow Gasket 27-864547a02 Exhaust elbow gasket 864547A02 is for use on 2002 and newer V-6 and V-8 MerCruiser stern drive and inboard engines with dry joint exhaust manifolds. See your owner's manual or service...
    Part Number:
    710-27-864547A02
    Availability:
    In Stock - Ships same or next business day.
    $58.17 $49.99
    Qty in Cart: 0
    Quantity:
    Price:
    $58.17 $49.99
    Buy this product to earn $1.50 in Store Credit
    Subtotal:
  • OEM MerCruiser Exhaust Manifold 90 Drain Plug Elbow Fitting  22-862210a01

    OEM MerCruiser Exhaust Manifold 90 Drain Plug Elbow Fitting 22-862210a01

    Mercury Marine / Quicksilver

    $28.00 $23.99
    OEM MerCruiser Exhaust Manifold 90 Drain Plug Elbow Fitting 22-862210a01 Stainless Steel Exhaust Manifold Drain Elbow Kit 862210A01 is for use on V-6 and V-8 MerCruiser stern drive and inboard engines with center rise manifolds. Kit includes the...
    Part Number:
    710-22-862210A01
    Availability:
    In Stock - Ships same or next business day.
    Manufacturer Part Number:
    22-862210a01
    $28.00 $23.99
    Qty in Cart: 0
    Quantity:
    Price:
    $28.00 $23.99
    Buy this product to earn $0.72 in Store Credit
    Subtotal:
  • MerCruiser " T " fitting for under manifold 22-863786A1

    MerCruiser " T " fitting for under manifold 22-863786A1

    Mercury Marine / Quicksilver

    $48.25 $41.49
    MerCruiser " T " fitting for under manifold 22-863786A1 Exhaust manifold drain t-fitting 863786A1 is for use on MerCruiser V-6 and V-8 (305, 350 and 377 CID) engines with water drain systems. See your owner's manual, parts listing or service manual for...
    Part Number:
    710-22-863786A 1
    Availability:
    In Stock - Ships same or next business day.
    $48.25 $41.49
    Qty in Cart: 0
    Quantity:
    Price:
    $48.25 $41.49
    Buy this product to earn $1.24 in Store Credit
    Subtotal:
  • OEM MerCruiser Big Block Manifold to Head Gasket 27-46820

    OEM MerCruiser Big Block Manifold to Head Gasket 27-46820

    Mercury Marine / Quicksilver

    $23.33 $19.99
    OEM MerCruiser Big Block Manifold to Head Gasket 27-46820 Exhaust manifold gasket 46820 is for use on V-8 (454,482, 496, 502 and 540 CID) engines made by General Motors for MerCruiser stern drives and inboards. Will also fit like CID engines used for...
    Part Number:
    710-27-46820
    Availability:
    In Stock - Ships same or next business day.
    $23.33 $19.99
    Qty in Cart: 0
    Quantity:
    Price:
    $23.33 $19.99
    Buy this product to earn $0.60 in Store Credit
    Subtotal:
  • OEM MerCruiser DRY JOINT riser elbow block off Gasket 27-864549a02

    OEM MerCruiser DRY JOINT riser elbow block off Gasket 27-864549a02

    Mercury Marine / Quicksilver

    $53.92 $45.99
    OEM MerCruiser DRY JOINT riser elbow block off Gasket 27-864549a02 Exhaust elbow gasket 864549A02 is for use on 2002 and newer V-6 and V-8 MerCruiser stern drive and inboard engines with dry joint exhaust manifolds. This is a block off style gasket. See...
    Part Number:
    710-27-864549A02
    Availability:
    In Stock - Ships same or next business day.
    $53.92 $45.99
    Qty in Cart: 0
    Quantity:
    Price:
    $53.92 $45.99
    Buy this product to earn $1.38 in Store Credit
    Subtotal:
  • OEM MerCruiser Exhaust Center Riser mounting bolt (REMOTE OIL FILTER)

    OEM MerCruiser Exhaust Center Riser mounting bolt (REMOTE OIL FILTER)

    Mercury Marine / Quicksilver

    $16.92 $13.80
    OEM MerCruiser Exhaust Riser mounting bolts (extended) (63/4") Fits 4.3 , small block, and big block MerCruiser engines with 4" Riser Elbows Will not work for dry joint (2002+) ONLY for riser mounted remote oil filter!usually 2x per engine You will...
    Part Number:
    710-10-44387
    Availability:
    In Stock - Ships same or next business day.
    Fitment:
    .376-16 x 6.750
    $16.92 $13.80
    Qty in Cart: 0
    Quantity:
    Price:
    $16.92 $13.80
    Buy this product to earn $0.41 in Store Credit
    Subtotal:
  • Sold out - Special order may be available, please call 856-232-6969 ext1
    MerCruiser straight hose fitting 22-866725 22-863804

    MerCruiser straight hose fitting 22-866725 22-863804

    Mercury Marine / Quicksilver

    $17.60 $13.11
    MerCruiser straight hose fitting 22-866725 22-863804 22-866725 replaces 22-863804 Please confirm fitment of MerCruiser parts with your serial numberPhotos and descriptions provided via Mercury may not always be accurateAll of our Mercury parts are sold...
    Part Number:
    710-22-866725
    Availability:
    In Stock - Ships same or next business day.
    Qty in Cart: 0
    Price:
    $17.60 $13.11
    Buy this product to earn $0.39 in Store Credit
    Subtotal:
  • Total: items /

Adding your products to cart

7.4 454 & 502 Gaskets and Bolts

 

Whether you’re looking for a MerCruiser 454 head gasket set or a few spare bolts to finish an exhaust system replacement job, you’ll find it here at NuWave Marine. When it comes to your MerCruiser exhaust, every part matters. Though gaskets and bolts are small, it could lead to a big problem if they should fail and allow water to seep into your engine.

 

At NuWave Marine, we recommend inspecting your boat’s engine annually, and replacing the entire exhaust system every five years if it’s a saltwater boat. Freshwater application may last longer, though it’s still smart to replace 7.4-454-502 exhaust parts before they break down. You can purchase complete exhaust kits or pick up a MerCruiser 7.4 head gasket set if other parts like the riser elbow and manifold don’t need to be replaced at this point. Of course, keep in mind that if you notice wear or corrosion on one part, chances are that other parts that were installed around the same time are likely to follow suit.

MerCruiser 502 Exhaust Manifold Gasket

The MerCruiser 502 gasket set from NuWave Marine contains everything you need to make sure your 502 exhaust system stays leak-free. Since we only carry the very best OEM parts and premium aftermarket parts from trusted brands, you know you're getting parts that can perform under stress.

MerCruiser 454 Manifold Gasket

Forming a watertight seal between the exhaust manifold and the riser elbow is extremely important, especially with wet exhaust systems. Gaskets from this collection are precision-crafted from high-quality materials. We wouldn't sell them to you if we didn't use them in our own boats.

Shop With a Trusted Supplier

NuWave Marine has been providing top-of-the-line replacement parts to both recreational boaters and boat mechanics for four decades. We have warehouses across the country, and we ship every part from the warehouse closest to you within 24 hours of purchase. Whether you need gaskets, elbow risers, or Y-pipe parts, our knowledgeable staff is standing by and ready to assist.