-17% sale
Crusader Qualifies for Free Shipping Crusader Cap Remote Cool Recovery Tank #23527
00
DAYS
00
HRS
00
MIN
00
SEC
Crusader Crusader Remote Cool Recovery Tank Cap #23527 $10.82 $12.91
Crusader 23527 Expansion Tank Remote Cool Recovery Tank Cap Normalized SKU: 23527
NEW ARRIVAL -20% sale
Seakamp Qualifies for Free Shipping Seakamp Coolant Overflow Recovery Tank #SK-3111
00
DAYS
00
HRS
00
MIN
00
SEC
Seakamp Seakamp Coolant Overflow Recovery Tank #SK-3111 $76.81 $95.35
Seakamp SK-3111 Expansion Tank Designed to work as an overflow reservoir for marine engine coolant. Translucent plasticReplaces Marine Power 527070Replaces Mercruiser 71587A10Replaces R & D Enterprises Inc 222Replaces Universal 300238Replaces Seakamp Engineering SK3111-14Normalized SKU: SK3111
Sold out NEW ARRIVAL -20% sale
00
DAYS
00
HRS
00
MIN
00
SEC
EMP EMP Expansion Tank #1400-00100 $130.49 $161.98
EMP 1400-00100 Expansion TankThis product replaces:840080418759Normalized SKU: 140000100UPC Code: 840080418759
NEW ARRIVAL
Mercury Marine Mercury Reservoir Retaining Strap #808023T $19.39
Mercury Marine 808023T Expansion TankMercury Reservoir Retaining Strap #808023TNormalized SKU: 808023TUPC Code: 745061289260
NEW ARRIVAL
Mercury Marine Qualifies for Free Shipping Mercury Coolant Overflow Recovery Kit #71587A10
Mercury Marine Mercury Coolant Overflow Recovery Kit #71587A10 $97.49
Mercury Marine 71587A10 Expansion Tank The Mercury Marine 71587A10 is a genuine OEM coolant overflow recovery kit for applicable Mercury MerCruiser sterndrive and inboard engines. This kit includes the expansion tank and associated components needed to properly manage coolant overflow in a closed cooling system, keeping the cooling circuit sealed, pressurized, and functioning the way Mercury designed it. Closed cooling systems on MerCruiser engines use a freshwater circuit to cool the engine block, with raw water handling only the heat exchanger side. The coolant overflow recovery tank is a critical part of that closed loop. As coolant heats up and expands, it moves into the overflow tank rather than being lost overboard. When the engine cools back down, the system draws that coolant back in. A cracked, missing, or failed overflow tank breaks that cycle and can lead to low coolant levels, overheating, and air pockets in the cooling system. This is a genuine Mercury OEM kit, not an aftermarket substitute. Fitment is specific to MerCruiser engines equipped with closed cooling systems that use this tank configuration. Always verify compatibility with your engine's model number and serial number before ordering, as MerCruiser has used several different overflow tank designs across its engine lineup over the years. If your existing tank is cracked, has a failed cap seal, or is showing signs of coolant residue around the seams, replacement is the right move before the next season rather than after an overheat on the water. This kit gives you everything needed to restore the overflow recovery system to factory spec. Normalized SKU: 71587A10UPC Code: 745061173224
Sold out -17% sale
00
DAYS
00
HRS
00
MIN
00
SEC
Seakamp Seakamp Replacement Cap for SK-SK3111-14 #SK3111-14-CAP $19.86 $23.70
Seakamp SK3111-14-CAP Expansion Tank Seakamp Replacement Cap Fits SK-SK3111-14 Normalized SKU: SK311114CAP
-20% sale
Pleasurecraft Qualifies for Free Shipping Pleasurecraft Reservoir Coolant Recovery #R146002
00
DAYS
00
HRS
00
MIN
00
SEC
Pleasurecraft Pleasurecraft Reservoir Coolant Recovery #R146002 $102.96 $127.82
Pleasurecraft R146002 Expansion Tank Reservoir Coolant Recovery  Normalized SKU: R146002
-20% sale
Volvo Penta Qualifies for Free Shipping Volvo Penta Expansion Tank #844062
00
DAYS
00
HRS
00
MIN
00
SEC
Volvo Penta Volvo Penta Expansion Tank #844062 $439.26 $548.25
Volvo Penta 844062 Expansion TankVolvo Penta Exploded view / schematic Extra Expansion Tank KitNormalized SKU: 844062
Sold out -22% sale
Volvo Penta Qualifies for Free Shipping Volvo Penta Expansion Tank #21666983
00
DAYS
00
HRS
00
MIN
00
SEC
Volvo Penta Volvo Penta Expansion Tank #21666983 $294.69 $374.27
Volvo Penta 21666983 Expansion TankVolvo Penta Exploded view / schematic Expansion tankNormalized SKU: 21666983
Sold out -17% sale
00
DAYS
00
HRS
00
MIN
00
SEC
MMD Powerline MMD Powerline Coolant Recovery Tank Kit #35088 $55.40 $66.47
MMD Powerline 35088 Expansion TankMMD Powerline Coolant Recovery Tank Kit #35088Normalized SKU: 35088
-22% sale
Crusader Qualifies for Free Shipping Crusader Reservoir Degas Bottle #R146001
00
DAYS
00
HRS
00
MIN
00
SEC
Crusader Crusader Reservoir Degas Bottle #R146001 $157.59 $200.15
Crusader R146001 Expansion Tank Reservoir Degas Bottle Replaces Pleasurecraft Marine R146001 Normalized SKU: R146001
Sold out -22% sale
Volvo Penta Qualifies for Free Shipping Volvo Penta Expansion Tank #861105
00
DAYS
00
HRS
00
MIN
00
SEC
Volvo Penta Volvo Penta Expansion Tank #861105 $187.20 $237.75
Volvo Penta 861105 Expansion TankThe purpose of the expansion tank is to help maintain a minimal pressure increase during heated water expansion and reduces the coolant hammer. Then the engine cooling system protects from stress. It is fit to collect coolant as the engine hot water system warms up and expands to make servicing of level more accessible. An Expansion Tank from Volvo Penta is a high- recommended product, just in case you're planning to replace it. The expansion tank engine coolant can be installed easily in an accessible position, and filling the system is considerably easier. Manufactured from a semi-transparent material to enable the checking of the coolant level. Key Features: A maximum of 1.2 meters above the highest point of the engine. It includes a pressure cap, tank, and fittings for installation. High-quality, durable products, easy-to-use, and it fits many diesel applications. Specifications: Brand: Volvo Penta SKU: 861105 Weight: 0.93 LBS Material: Plastic Volvo Penta Exploded view / schematic Expansion tankNormalized SKU: 861105
Sold out -20% sale
Volvo Penta Qualifies for Free Shipping Volvo Penta Diesel Expansion Tank #3812272
00
DAYS
00
HRS
00
MIN
00
SEC
Volvo Penta Volvo Penta Diesel Expansion Tank #3812272 $333.67 $416.46
Volvo Penta 3812272 Expansion TankVolvo Penta Exploded view / schematic Kit for Expansion Tank Bulk Head MountedNormalized SKU: 3812272
Sold out -18% sale
Volvo Penta Qualifies for Free Shipping Volvo Penta Expansion Tank Kit #3581297
00
DAYS
00
HRS
00
MIN
00
SEC
Volvo Penta Volvo Penta Expansion Tank Kit #3581297 $688.13 $833.28
Volvo Penta 3581297 Expansion TankVolvo Penta Expansion Tank Kit #3581297Normalized SKU: 3581297
Sold out -17% sale
Crusader Qualifies for Free Shipping Crusader Coolant Recovery Reservoir #R146002 Crusader Qualifies for Free Shipping Crusader Coolant Recovery Reservoir #R146002
00
DAYS
00
HRS
00
MIN
00
SEC
Crusader Crusader Coolant Recovery Reservoir #R146002 $66.66 $79.99
Crusader R146002 Expansion Tank Coolant Recovery Reservoir Replaces Crusader 98207 Replaces Pleasurecraft Marine R146002 Normalized SKU: R146002
Sold out -20% sale
Seakamp Qualifies for Free Shipping Seakamp Coolant Recovery Tank with Bracket #14 Cap #SK3111-14
00
DAYS
00
HRS
00
MIN
00
SEC
Seakamp Seakamp Coolant Recovery Tank with Bracket #14 Cap #SK3111-14 $73.91 $91.75
Seakamp SK3111-14 Expansion Tank Seakamp coolant overflow recovery tank Translucent plastic Replaces Marine Power 527070 Replaces Mercruiser 71587A10 Replaces R & D Enterprises Inc 222 Replaces Universal 300238 Replaces Seakamp Engineering SK3111 Normalized SKU: SK311114

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.

Free Shipping

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

Secure Shopping

Fast, secure checkout with a variety of payment methods.

Shop with confidence

25+ years serving the marine industry.

Support center

Need help? Contact us via live chat, phone, or email.