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MerCruiser 4.3 Exhaust Parts

MerCruiser 4.3 Exhaust Parts

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  • OEM MerCruiser 4.3 V6 Exhaust Manifold and Riser Kit (4 inch) 1983-2002 99746A17 807988Q03

    OEM MerCruiser 4.3 V6 Exhaust Manifold and Riser Kit (4 inch) 1983-2002 99746A17 807988Q03

    Mercury Marine / Quicksilver

    $1,293.68 $1,067.54
    OEM MerCruiser 4.3 V6 Exhaust Manifold & Riser Kit For MerCruiser 4.3 engines with center riser exhaust and 4 inch risersApprox 1986-2002 with some exceptions Includes: • 2x MerCruiser manifold part number - 99746A17 (Replaces 99745,...
    Part Number:
    K-OEM262
    Availability:
    In Stock - Ships same or next business day.
    Coating:
    Hot Dipped (Ceramic) Manifolds /E-coated Risers
    Engine Size:
    4.3 v6
    Generation:
    Wet Joint (86-2002)
    $1,293.68 $1,067.54
    Qty in Cart: 0
    Price:
    $1,293.68 $1,067.54
    Buy this product to earn $32.03 in Store Credit
    Subtotal:
  • OEM MerCruiser 4" Ceramic Coated Riser/Elbow  807988A03

    OEM MerCruiser 4" Ceramic Coated Riser/Elbow 807988A03

    Mercury Marine / Quicksilver

    $334.75 $286.99
    OEM MerCruiser 4" Ceramic Coated Riser/Elbow  807988A03 Exhaust elbow 807988A03 is for use on V-6 and V-8 MerCruiser stern drive or inboard engines made by General Motors having a center rise outlet exhaust manifold (model year 2002 and older). It...
    Part Number:
    710-807988A03
    Availability:
    In Stock - Ships same or next business day.
    Coating:
    Ceramic
    $334.75 $286.99
    Qty in Cart: 0
    Quantity:
    Price:
    $334.75 $286.99
    Buy this product to earn $8.61 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
    OEM MerCruiser Dry Joint Riser mounting bolt 10-865982057 865982057

    OEM MerCruiser Dry Joint Riser mounting bolt 10-865982057 865982057

    Mercury Marine / Quicksilver

    $17.17 $14.01
    NEW Factory OEM MerCruiser Dry Joint Riser mounting bolt 10-865982057 865982057    Please confirm fitment of MerCruiser parts with your serial numberPhotos and descriptions provided via Mercury may not always be accurateAll of our...
    Part Number:
    710-10-865982057
    Availability:
    In Stock - Ships same or next business day.
    Fitment:
    .375-16 x 7.50
    Qty in Cart: 0
    Price:
    $17.17 $14.01
    Buy this product to earn $0.42 in Store Credit
    Subtotal:
  • OEM MerCruiser Exhaust Bellows Hose Clamp 710-54-815504372

    OEM MerCruiser Exhaust Bellows Hose Clamp 710-54-815504372

    Mercury Marine / Quicksilver

    $15.90 $11.85
    OEM MerCruiser Exhaust Bellows Hose Clamp 710-54-815504372 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 and priced EACH
    Part Number:
    710-54-815504372
    Availability:
    In Stock - Ships same or next business day.
    $15.90 $11.85
    Qty in Cart: 0
    Quantity:
    Price:
    $15.90 $11.85
    Buy this product to earn $0.36 in Store Credit
    Subtotal:
  • Sierra MerCruiser 4.3 Liter V6 Exhaust Manifold 99746A17 9975 18-19521

    Sierra MerCruiser 4.3 Liter V6 Exhaust Manifold 99746A17 9975 18-19521

    Sierra

    $377.79 $273.91
    Sierra 18-1952-1 Replacement Exhaust Manifold Kit For MerCruiser V6 4.3 Liter 02 and older engines Will not work for dry joint systems Kit Contains: • 1x Exhaust Manifold • 1x Mounting Package • 1x...
    Part Number:
    47-19521
    Availability:
    In Stock - Ships same or next business day.
    $377.79 $273.91
    Qty in Cart: 0
    Quantity:
    Price:
    $377.79 $273.91
    Buy this product to earn $8.22 in Store Credit
    Subtotal:
  • OEM Quicksilver/Mercury 4" Dry Joint 14 Degree Riser/Elbow  864591T02

    OEM Quicksilver/Mercury 4" Dry Joint 14 Degree Riser/Elbow 864591T02

    Mercury Marine / Quicksilver

    $451.36
    OEM Quicksilver/Mercury 4" Dry Joint 14 Degree Riser/Elbow  864591T02 These Will only work with Dry Joint systems! Exhaust elbow 864591T02 is for use on V-6 and V-8 MerCruiser stern drive engines made by General Motors with dry joint exhaust...
    Part Number:
    710-864591T02
    Availability:
    In Stock - Ships same or next business day.
    $451.36
    Qty in Cart: 0
    Quantity:
    Price:
    $451.36
    Buy this product to earn $13.54 in Store Credit
    Subtotal:
  • Sold out - Special order may be available, please call 856-232-6969 ext1
    Sierra MerCruiser 4.3 V6 Exhaust Manifold & Riser Kit 18-1952-1 18-1976-2

    Sierra MerCruiser 4.3 V6 Exhaust Manifold & Riser Kit 18-1952-1 18-1976-2

    Sierra

    $1,219.76 $999.99
    Sierra Exhaust Manifold and Riser Kit for MerCruiser V6 4.3 Liter 2x Manifold 18-1952-1 Replaces:  • Osco: 9745 • GLM: 51220 • MerCruiser: 99746A17 • Barr marine: 1-99746 2x Riser Elbow...
    Part Number:
    k-sierra262
    Availability:
    In Stock - Ships same or next business day.
    Qty in Cart: 0
    Price:
    $1,219.76 $999.99
    Buy this product to earn $30.00 in Store Credit
    Subtotal:
  • OEM MerCruiser 4" Dry Joint 7 Degree Riser/Elbow 864309T02

    OEM MerCruiser 4" Dry Joint 7 Degree Riser/Elbow 864309T02

    Mercury Marine / Quicksilver

    $422.99 $398.99
    OEM 7 Degree Dry Joint Riser Exhaust elbow 864309T02 is for use on V-6 and V-8 MerCruiser stern drive engines made by General Motors with dry joint exhaust manifold (model year 2002 through 2004, serial number 0M600000 through 0W309999). It has a 4"...
    Part Number:
    710-864309T02
    Availability:
    In Stock - Ships same or next business day.
    Coating:
    Ceramic
    $422.99 $398.99
    Qty in Cart: 0
    Quantity:
    Price:
    $422.99 $398.99
    Buy this product to earn $11.97 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:
  • NEW OEM MerCruiser V6 V8 Exhaust Riser spacer kit 6" 6 inch 93322A12

    NEW OEM MerCruiser V6 V8 Exhaust Riser spacer kit 6" 6 inch 93322A12

    Mercury Marine / Quicksilver

    $690.14 $603.72
    NEW OEM MerCruiser V6 V8 Exhaust Riser spacer kit 6" 6 inch 93322A12  • For all MerCruiser center riser manifolds • All V6 and all V8 engines from early 80+ • New bolts, gaskets, 6 inch high spacers, nuts and washers Will...
    Part Number:
    710-93322A12
    Availability:
    In Stock - Ships same or next business day.
    $690.14 $603.72
    Qty in Cart: 0
    Quantity:
    Price:
    $690.14 $603.72
    Buy this product to earn $18.11 in Store Credit
    Subtotal:
  • OEM MerCruiser Exhaust Y-pipe with Flappers 815786 8M0115149 807130a4 807130c 861229c

    OEM MerCruiser Exhaust Y-pipe with Flappers 815786 8M0115149 807130a4 807130c 861229c

    Mercury Marine / Quicksilver

    $956.50 $821.46
    New OEM Y-Pipe Works with many mercruiser engines!part number 807130a4 casting number 807130-c or 861229c Replaces 815786 8M0115149 807130a4 807130c 861229c exhaust Flappers included !
    Part Number:
    710-8M0115149
    Availability:
    In Stock - Ships same or next business day.
    $956.50 $821.46
    Qty in Cart: 0
    Quantity:
    Price:
    $956.50 $821.46
    Buy this product to earn $24.64 in Store Credit
    Subtotal:
  • OEM (7 degree risers) MerCruiser V6/V8 "Dry Joint" Exhaust Riser 3" Spacer Kit (7 degree risers) (std cooling)

    OEM (7 degree risers) MerCruiser V6/V8 "Dry Joint" Exhaust Riser 3" Spacer Kit (7 degree risers) (std cooling)

    Mercury Marine / Quicksilver

    $971.36 $839.94
    OEM (7 degree risers) MerCruiser V6/V8 "Dry Joint" Exhaust Riser 3" Spacer Kit (7 degree risers) (std cooling) For V6 and V8 engines with (7 degree risers) 864309T02 (std cooling)Will work with Dry Joint Exhaust only Includes: •...
    Part Number:
    710-864929A 1
    Availability:
    In Stock - Ships same or next business day.
    $971.36 $839.94
    Qty in Cart: 0
    Quantity:
    Price:
    $971.36 $839.94
    Buy this product to earn $25.20 in Store Credit
    Subtotal:
  • Sold out - Special order may be available, please call 856-232-6969 ext1
    Sierra MerCruiser 3" Exhaust Riser Elbow MC-20-55538 98504A3 18-1970-1 18-1970-2

    Sierra MerCruiser 3" Exhaust Riser Elbow MC-20-55538 98504A3 18-1970-1 18-1970-2

    Sierra

    $313.69 $214.12
    Sierra replacement 3" Exhaust elbow for MerCruiser MerCruiser 175-205 GM 229/262 CID V6 (1983+) MerCruiser 200-320 GM 305/350/377 CID V8 Small Block (1983+) MerCruiser 330-370 GM 454/502 CID V8 Big Block (1981+) Comparable Part...
    Part Number:
    47-19702
    Availability:
    In Stock - Ships same or next business day.
    MPN:
    18-19701
    Qty in Cart: 0
    Price:
    $313.69 $214.12
    Buy this product to earn $6.42 in Store Credit
    Subtotal:
  • OEM MerCruiser V6/V8 Dry Joint Exhaust Riser 1.7" Spacer Kit  865995A01

    OEM MerCruiser V6/V8 Dry Joint Exhaust Riser 1.7" Spacer Kit 865995A01

    Mercury Marine / Quicksilver

    $777.07 $670.74
    OEM MerCruiser V6/V8 Dry Joint Exhaust Riser 1.7" Spacer Kit  865995A01 for V6 and V8 engines with (14 degree risers)864309T01, 864309T02 (std cooling)Will work with Dry Joint Exhaust only Includes: • Gaskets • 1.7 inch...
    Part Number:
    710-865995A01
    Availability:
    In Stock - Ships same or next business day.
    $777.07 $670.74
    Qty in Cart: 0
    Quantity:
    Price:
    $777.07 $670.74
    Buy this product to earn $20.12 in Store Credit
    Subtotal:
  • Sold out - Special order may be available, please call 856-232-6969 ext1
    Sierra Marine "14 DEGREE" DRY JOINT MerCruiser Riser Elbow 864591T02 18-1845

    Sierra Marine "14 DEGREE" DRY JOINT MerCruiser Riser Elbow 864591T02 18-1845

    Sierra

    $462.99 $322.26
    14 degree Riser 18-1845 Replaces: • Barr: MC-2-0864591 • MerCruiser: 864591T02 Includes bolts
    Part Number:
    47-1845
    Availability:
    In Stock - Ships same or next business day.
    Qty in Cart: 0
    Price:
    $462.99 $322.26
    Buy this product to earn $9.67 in Store Credit
    Subtotal:
  • OEM MerCruiser V6/V8 Dry Joint Exhaust Riser 6" Spacer Kit (std cooling)

    OEM MerCruiser V6/V8 Dry Joint Exhaust Riser 6" Spacer Kit (std cooling)

    Mercury Marine / Quicksilver

    $895.64 $776.34
    OEM (14 degree risers) MerCruiser V6/V8 Dry Joint Exhaust Riser 6" Spacer Kit (std cooling) Fits: • MerCruiser • 4.3L, 5.0L, 5.7L, 6.2L • Part Number#864908A1 Includes: • 2x spacer, all bolts and gaskets needed...
    Part Number:
    710-864908A 1
    Availability:
    In Stock - Ships same or next business day.
    $895.64 $776.34
    Qty in Cart: 0
    Quantity:
    Price:
    $895.64 $776.34
    Buy this product to earn $23.29 in Store Credit
    Subtotal:
  • OEM MerCruiser V6/V8 "Dry Joint" Exhaust Riser 3" Spacer Kit (14 degree risers) (std cooling) 864929A3

    OEM MerCruiser V6/V8 "Dry Joint" Exhaust Riser 3" Spacer Kit (14 degree risers) (std cooling) 864929A3

    Mercury Marine / Quicksilver

    $884.21 $766.74
    OEM MerCruiser DRY JOINT 3 inch riser kit For V6 and V8 engines with (14 degree risers) 864309T01, 864309T02 (std cooling) Will work with Dry Joint Exhaust only Includes: • Gaskets • 3 inch spacers • Mounting...
    Part Number:
    710-864929A 3
    Availability:
    In Stock - Ships same or next business day.
    $884.21 $766.74
    Qty in Cart: 0
    Quantity:
    Price:
    $884.21 $766.74
    Buy this product to earn $23.00 in Store Credit
    Subtotal:
  • (14 Degree) Dry Joint OEM MerCruiser 4.3 V6 Exhaust Manifold and Riser Kit

    (14 Degree) Dry Joint OEM MerCruiser 4.3 V6 Exhaust Manifold and Riser Kit

    Mercury Marine / Quicksilver

    $1,896.69
    OEM MerCruiser 4.3 V6 Exhaust Kit For MerCruiser 4.3 engines with DRY JOINT center riser exhaust and 14 degree 4 inch risers (if you are not sure of the angle of your risers, please call us with your serial number) 2002+ with some exceptions Includes:...
    Part Number:
    K-OEM262DRY14
    Availability:
    In Stock - Ships same or next business day.
    Coating:
    Hot Dipped (Ceramic)
    Engine Size:
    4.3 v6
    Generation:
    Dry Joint (02-2010)
    $1,896.69
    Qty in Cart: 0
    Price:
    $1,896.69
    Buy this product to earn $50.00 in Store Credit
    Subtotal:
  • MerCruiser down Elbow Tube 14478T01

    MerCruiser down Elbow Tube 14478T01

    Mercury Marine / Quicksilver

    $215.17 $158.63
    MerCruiser down Elbow Tube 14478T01 Used for converting the 1 peice manifolds!Elbow tube for MerCruiser MODEL 175-205 - V6, GM 229/262 CID (1983 up to 0M SN #) Please confirm fitment of MerCruiser parts with your serial numberPhotos and descriptions...
    Part Number:
    710-14478T01
    Availability:
    In Stock - Ships same or next business day.
    $215.17 $158.63
    Qty in Cart: 0
    Quantity:
    Price:
    $215.17 $158.63
    Buy this product to earn $4.76 in Store Credit
    Subtotal:
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4.3 Exhaust Parts

NuWave Marine has a full stock of MerCruiser 4.3 exhaust parts for boat owners and mechanics who need to replace a faulty or worn-out component or take on an entire rebuild. Come to us for all the replacement parts you need to get maximum power from your engine and keep it in top condition.

We suggest changing your OEM exhaust system every 5 years, just to be safe. It’s possible that it could last for longer, but you’re really taking a risk that water will seep into your motor and cause serious damage. For fresh water applications, exhaust parts might last much longer, but routine maintenance is still necessary. If you have a 4.3L MerCruiser engine, you’ll need 4.3 exhaust kits or individual components from our large inventory. NuWave Marine is proud to carry only premium OEM parts and high-quality Sierra aftermarket parts. Stop a small problem from becoming a big one with these exhaust system replacement parts.

MerCruiser 4.3 Exhaust Manifold

Venting hot gasses from the cylinders is an important job and it all starts with your manifold. Exhaust manifolds from NuWave Marine are precision-engineered to be efficient, durable, and easy to install. Made to handle the outflow of gasses from these powerful engines, a new manifold is a must if you notice any sort of corrosion or leakage.

MerCruiser 4.3 Exhaust Y Pipe

In addition to riser elbows, MerCruiser 4.3 Y pipes play an important role in venting gas collected by the manifold outward. Y pipes take exhaust from two separate manifolds and combine it into one transom assembly. Just like with the manifolds, if you notice any seepage, leakage, or corrosion, the best course of action is to replace the part entirely.

We also carry other essentials for 4.3 liter MerCruiser motors. MerCruiser 4.3 spacer kits contain the parts you need to make sure your exhaust system sits at the right height. We also offer riser elbows, and smaller spare MerCruiser 4.3 exhaust parts like gaskets and bolts. If you need an entire new system, or just a new gasket, we’ve got all the MerCruiser exhaust replacement parts you require.

NuWave Marine has been fixing, building, and maintaining marine engines since 1987. If you have a question, drop us a line and let our experience work for you.