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Sen-Dure Products Sen-Dure Products 2" Heat Exchanger End Cover Assembly #5372 $20.66 $24.66
Sen-Dure Products 5372 Heat ExchangerSen-Dure Products 2" Heat Exchanger End Cover Assembly #5372Cooling: Heat ExchangerNormalized SKU: 5372
Sold out -15% sale
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Sen-Dure Products Sen-Dure Products 3" Heat Exchanger End Cap Gasket #332 $7.94 $9.34
Sen-Dure Products 332 Heat ExchangerSen-Dure Products 3" Heat Exchanger End Cap Gasket #332Cooling: Heat ExchangerNormalized SKU: 332
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Sen-Dure Products Sen-Dure Products 3" Heat Exchanger End Cover Assembly #5373 $33.06 $39.46
Sen-Dure Products 5373 Heat ExchangerSen-Dure Products 3" Heat Exchanger End Cover Assembly #5373Cooling: Heat ExchangerNormalized SKU: 5373
Sold out -17% sale
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Sen-Dure Products Sen-Dure Products 4" Heat Exchanger End Cap Gasket #259 $9.30 $11.10
Sen-Dure Products 259 Heat ExchangerSen-Dure Products 4" Heat Exchanger End Cap Gasket #259Cooling: Heat ExchangerNormalized SKU: 259
Sold out -17% sale
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Sen-Dure Products Sen-Dure Products 4" Heat Exchanger End Cover Assembly #5374 $42.00 $50.40
Sen-Dure Products 5374 Heat ExchangerSen-Dure Products 4" Heat Exchanger End Cover Assembly #5374Cooling: Heat ExchangerNormalized SKU: 5374
Sold out -17% sale
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Sen-Dure Products Sen-Dure Products 5" Heat Exchanger End Cap Gasket #396 $9.81 $11.71
Sen-Dure Products 396 Heat ExchangerSen-Dure Products 5" Heat Exchanger End Cap Gasket #396Cooling: Heat ExchangerNormalized SKU: 396
Sold out -17% sale
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Sen-Dure Products Sen-Dure Products 5" Heat Exchanger End Cover Assembly #5375 $48.00 $57.60
Sen-Dure Products 5375 Heat ExchangerSen-Dure Products 5" Heat Exchanger End Cover Assembly #5375Cooling: Heat ExchangerNormalized SKU: 5375
Sold out -16% sale
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Sen-Dure Products Sen-Dure Products Rubber Gasket #493 $5.66 $6.66
Sen-Dure Products 493 Engine GasketsSen-Dure Products Rubber Gasket #493Normalized SKU: 493
-16% sale
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Sen-Dure Products Sen-Dure Products Rubber Washer #8895 $1.58 $1.86
Sen-Dure Products 8895 O-RingsSen-Dure Products Rubber Washer #8895Normalized SKU: 8895
NEW ARRIVAL -20% sale
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Sen-Dure Products Sen-Dure Thermostat Housing #6743-2 $102.95 $127.80
Sen-Dure 6743-2 Thermostat Housing Sen-Dure Thermostat Housing #6743-2 Normalized SKU: 67432

Frequently Asked Questions

First Choice Marine is an online marine retailer carrying a diverse line of marine parts and accessories and related items from industry-respected and demanded manufacturers and suppliers. Through our diverse distributor network, we are able to access over 150,000 items, including our current site inventory, new products being added, and special order items. If you need it on your boat... we are your one-stop shop!

Yes, we offer FREE Shipping on most orders over $149 to US-48*.

Each product displays a shipping status message, just above the item price. Below is the meaning for each of these codes.

  • Qualifies for Free Shipping: This item qualifies for free shipping when the order is $149+
  • Qualifies for Free Ground Shipping: This item qualifies for free ground shipping when the order is $149+.
  • Oversized - Not Qualified for Free Shipping: This item is too large/heavy to qualify for free shipping
  • Hazardous Item - Not Qualified for Free Shipping: This item is hazardous and does not qualify for free shipping
  • Truck Freight - Not Qualified for Free Shipping: This item has to be shipped via truck freight. Please contact us for a quote
  • In-Store Pickup Only: This item can only be picked up in our Grain Valley, MO retail store

Below the price of the item, on the product page, there is a message indicating the availability of the product.

The quantity on hand is updated as inventory events happen and matches what we have available. If you have urgent needs and we are close to what you need, contact us, and we can confirm stock.

We offer a hassle-free return policy. If you're not completely satisfied with your purchase, you can return it within 30 days for a full refund or exchange.

If you need to return an item, please follow the guidelines here so we can process a prompt refund and assist you in finding the correct item.

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On most orders $149+ to the continental 48 US states.

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