Crossover Cooling Systems:
Click on the part number to check pricing or place an order.
| Hardin
Marine Billet & Stainless Serpentine Belt Crossover for Mercury 454/502 Magnum MPI |
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At last you can finally
purchase a crossover for your serpentine belt driven EFI motor.
Until now there was no way to reap the 15 to 20 horsepower gain that
could be achieved by removing the unnecessary power robbing circulating
pump. These beautifully polished crossovers allow you to retain
your factory serpentine drive belt through the use of a clutchless
freewheeling billet idler pulley. This unit is a perfect addition
for any EFI motor. If you want great looks and performance while
retaining your OEM drive system, then this product has you covered.
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| Hardin
Marine Complete Crossover Kit |
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This kit represents one of
the cleanest installations of a water inlet crossover system found
anywhere. The highly polished 316L stainless steel construction
locates all of the necessary hose connections in the perfect location
for easy installation. This system uses a large 1" bypass hose for
increased water volume...no tiny 5/8" stuff found here!
Eliminating your power robbing circulating pump has never been easier or
more attractive.
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| Hardin
Marine Standard 1-1/4" Stainless Steel Water Inlet Crossover |
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This high quality stainless crossover uses precisely
machined inlet plates welded to a large diameter crossover tube to
provide equal water distribution. It also uses a standard 1-1/4"
slip-on inlet connection (Note: available in port and starboard
configurations, check before ordering) for Chevy engines only.
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| Hardin
Marine Bypass Style Stainless Steel Water Inlet Crossover |
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These precision handcrafted water inlet crossovers feature a 3/4" NPT bung on the top of the crossover tube that can be used to bypass water to the thermostat housing. Available with either a 1-1/4" slip-on connection or a 1" NPT bung for a choice of inlet fittings. | ||||||||||||||||||
| Hardin
Marine 1" NPT Stainless Steel Water Inlet Crossover |
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This 1" NPT inlet water crossover uses the same high
quality construction as the other crossovers except it has a 1" NPT inlet allowing you to use a number of assorted fittings
to adapt to your application.
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| Big Block
Chevy Stainless Steel Water Inlet Crossover With Bypass |
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This crossover is most commonly used in our crossover kits. Its integrated bypass allows a smooth push-on style connection aimed at thermostat area. | ||||||||||||||||||
| Cast
Stainless Adjustable Swivel Inlet Crossover |
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The water inlet can be plumbed from the port to starboard
by rotating the inlet for custom rigging applications.
This crossover is a 1-piece stainless casting and highly
polished. This crossover fits big block Chevy engines and is
available with a 1-1/4" hose connection.
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| Complete
Marine Cooling Crossover Kit |
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By removing that power robbing engine mounted
circulating pump you can experience horsepower gains of up to
15 horsepower while increasing water circulation. These
kits come complete with all necessary bolts, gaskets,
and hardware. Note: Bypass systems use a thermostat
while non-bypass doesn't.
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