Cooling Systems - Water Outlet Dividers

Replacement Stainless Steel Mercury 850, 1075, 1200 SCi Thermostat Housing
Your Price:
$2,499.99

Replacement Stainless Steel Mercury 850, 1075, 1200 SCi Thermostat Housing

410-1526

Hardin Marine has done it again! This new all 316L stainless steel fabricated thermostat housing replaces the old, and no longer made cast iron units used in Mercury 850, 1075, 1200 SCi and other applications. Replaces Mercury #840047A02 and #8M0192206 housing and #849875T01 cover. Water inlet is -16 ORB. Circulation Hose bung is 1-7/8". All 4 header and tailpipe fittings are 3/4" NPT. You must reuse their original OEM ball and stud assembly in the tailpipe outlet. Includes 160 degree thermostat, O-rings and hardware needed to install. Fittings are sold separately see related parts.


Chevy Water Outlet Billet 3/4" NPT
Your Price:
$49.99

Chevy Water Outlet Billet 3/4" NPT

500-0681

Chevy Water Outlet Billet 3/4" NPT

  • 3/4" NPT
  • Replaces stock thermostat housing.
  • Polished Aluminum.
  • Thermostat will NOT fit inside
  • 1.45"  tall

BBC Custom Cast Bypass Style Stainless Steel Water Outlet Divider
Your Price:
$149.99

GM / SBC / BBC Custom Cast Bypass Style Stainless Steel Water Outlet Divider

410-1499

  • Constructed from 316L Stainless Steel.
  • For BBC or SBC applications.
  • Features (3) 1" push-on hose barbs.
  • This unit is used in crossover cooling system #620-300100.
  • Length 4-1/4", Height 3", Width 2-3/4".
  • Includes bolts and O-ring.
  • O-Ring sealed, no gaskets required!

Polished 316L Stainless Steel Water Outlet -10 AN Outlet Divider with Bypass
Your Price:
$179.99

Polished 316L Stainless Steel Water Outlet -10 AN Outlet Divider with Bypass

410-1481

  • Constructed of 316L Stainless Steel.
  • Fits most plumbing applications.
  • Designed to fit Big Block and Small Block Chevrolet engines.
  • Bypass hole can also be used for temperature sender.
  • Length 4", Width 2-3/4", Height 2-1/2"
  • Two -10 AN flare fittings and a 3/8" NPT bypass port.
  • Includes bolts and gasket.

Polished 316L Stainless Steel Water Outlet -12 AN Outlet Divider with Bypass
Your Price:
$159.99

Polished 316L Stainless Steel Water Outlet -12 AN Outlet Divider with Bypass

410-1482

  • Polished 316L Stainless Steel.
  • Two -12 AN flare fittings and a 3/8" NPT bypass port.
  • Fits most plumbing applications.
  • Designed to fit Big Block and Small Block Chevrolet Engines.
  • Bypass hole can also be used for temperature sender.
  • Length 4", Width 2-3/4", Height 2-1/2".
  • Includes bolts and gasket.

Polished 316L Stainless Steel Water Outlet -16 AN Outlet Divider with Bypass
Your Price:
$139.99

Polished 316L Stainless Steel Water Outlet -16 AN Outlet Divider with Bypass

410-1486

  • Polished 316L Stainless Steel.
  • Two -16 AN flare fittings and a 3/8" NPT bypass port.
  • Fits most plumbing applications.
  • Designed to fit Big Block and Small Block Chevrolet Engines.
  • Bypass hole can also be used for temperature sender.
  • Length 4", Width 2-3/4", Height 2-1/2".
  • Includes bolts and gasket.

Polished 316L Stainless Steel Water Outlet 3/4" NPT Outlet Divider with Bypass
Your Price:
$119.99

Polished 316L Stainless Steel Water Outlet 3/4" NPT Outlet Divider with Bypass

410-1483

  • Constructed of 316L Stainless Steel.
  • Length 4", Width 2-3/4", Height 2-1/2".
  • Fits most plumbing applications.
  • Designed to fit Big Block and Small Block Chevrolet Engines.
  • Bypass hole can also be used for temperature sender.
  • Two 3/4" NPT Ports and a 3/8" NPT bypass port.
  • Includes bolts and gaskets.

Polished Water Outlet Divider With Bypass Hole & 1" Slip-on Hose Outlets
Your Price:
$139.99

Polished Water Outlet Divider With Bypass Hole & 1" Slip-on Hose Outlets

410-1484

  • Polished 316L Stainless Steel.
  • 1" Slip-on Hose barbs, 3/8" NPT Bypass port.
  • Fits most plumbing applications.
  • Designed to fit Chevrolet Engines, BBC, & SBC
  • Bypass hole can also be used for temperature sender.
  • Length 4", Width 2-3/4", Height 2-1/2".
  • Includes bolts, and gasket.
Matches wider angled water outlet divider #410-1485

Polished Water Outlet Divider With Bypass Hole & 1" Slip-on Hose Outlets
Your Price:
$112.99

Polished Water Outlet Divider With Bypass Hole & 1" Slip-on Hose Outlets - Wide Angle 140°

410-1485

  • Wide Angle 140°
  • Polished 316L Stainless Steel.
  • 1" Slip-on Hose barbs, 3/8" NPT Bypass port.
  • Fits most plumbing applications.
  • Designed to fit Chevrolet Engines, BBC, & SBC
  • Bypass hole can also be used for temperature sender.
  • Length 4", Width 2-3/4", Height 2-1/2".
  • Includes bolts, and gasket.
Matches narrower angled water outlet divider #410-1484

Stainless Steel Thermostat Housing
Your Price:
$189.99

Big Block and Small Block Chevy Stainless Steel Mercruiser Thermostat Housing Replaces Mercury 860256A4

410-1496

  • For use in Big Block and Small Block Chevy Mercruiser Applications
  • Constructed of Cast Stainless Steel.
  • Replaces factory black cast iron MerCruiser housing.
  • Designed to work in conjunction with the factory circulating pump.
  • Can be used in low profile applications such as EFI engines etc.
  • Works with Mercruiser 860256A4 MCM & MIE V6 – V8 (305 & 350cid) w/Bravo Drive
  • Replaces Sierra 18-1989 and 18-3530-1
  • Thermostat NOT included

Supercharger Water Outlet 3/4" NPT Divider with Bypass
Your Price:
$169.99

Supercharger Water Outlet 3/4" NPT Divider with Bypass

410-1474

  • Constructed of 316L Stainless Steel.
  • 3/4" NPT Divider with 3/8" NPT Bypass
  • Fits 8-71 thru 14-71 TBS and B&M 250 and 420 superchargers.
  • Specially designed for V8 Chevrolet engine applications using superchargers.
  • Includes bolts, and gaskets.

Water Outlet 1" Slip-on Divider With Bypass
Your Price:
$149.99

Supercharger Water Outlet 1" Slip-on Divider With Bypass

410-1472

  • Constructed of 316L Stainless Steel.
  • 1" Push on hose barb with 3/8" NPT Bypass.
  • Fits 8-71 thru 14-71 TBS and B&M 250 and 420 Superchargers.
  • Designed for V8 Chevrolet Engine applications using superchargers.

Supercharger Water Outlet 1" Hose Divider with Bypass
Your Price:
$169.99

Supercharger Water Outlet 1" Hose Divider with Bypass

410-1476

  • Constructed of 316L Stainless Steel.
  • 1" Hose Divider with 3/8" NPT Bypass
  • Fits 8-71 thru 14-71 Whipple, Late Roots Style, TBS and B&M 250 and 420 superchargers.
  • Specially designed for V8 Chevrolet engine applications using superchargers.
  • Includes bolts, and gaskets.

Water Outlet -12 AN Divider with Bypass
Your Price:
$149.99

Water Outlet -12 AN Divider with Bypass

410-1471

  • Constructed of 316L Stainless Steel.
  • -12 AN Divider with 3/8" NPT Bypass.
  • Fits 8-71 thru 14-71 TBS and B&M 250 and 420.
  • Specially designed for V8 Chevrolet engine applications using superchargers.
  • Includes bolts, and gaskets.

Water Outlet -10 AN Divider with Bypass
Your Price:
$149.99

Water Outlet -10 AN Divider with Bypass

410-1470

  • Constructed of 316L Stainless Steel.
  • -10 AN Divider with 3/8" NPT Bypass
  • Fits 8-71 thru 14-71 TBS and B&M 250 and 420 superchargers.
  • Specially designed for V8 Chevrolet engine applications using superchargers.
  • Includes bolts, and gaskets.

Chevy Water Divider with Bypass - 3 Nipple
Your Price:
$287.99

Chevy Water Divider with Bypass - 3 Nipple

520-SM295W

  • 3 Nipple
  • Stainless Steel.
  • Designed for Chevrolet Engines.
  • Positions the hose connections in front of the motor.

Chevy Water Divider without Bypass - 2 Nipple
Your Price:
$229.99

Chevy Water Divider without Bypass - 2 Nipple

520-SM295WO

  • 2 Nipple
  • Stainless Steel.
  • Designed for Chevrolet Engines.
  • Positions the hose connections in front of the motor.

SBC / BBC Thermostat Housing / Water Outlet Gasket
Your Price:
$1.99

SBC / BBC Thermostat Housing / Water Outlet Gasket

620-04112

Small Block & Big Block Chevy Thermostat Housing/Water Outlet Gasket


Ford 460 Thermostat Housing / Water Outlet Gasket
Your Price:
$1.99

Ford 460 Thermostat Housing / Water Outlet Gasket

620-04113

460 Ford Thermostat Housing/Water Outlet Gasket


1" Thick Billet Aluminum Water Outlet Spacer
Your Price:
$69.99

1" Thick Billet Aluminum Water Outlet Spacer

500-0680

  • 1" thick.
  • Two 3/8" NPT female pipe holes, for senders or bypass.
  • Machined to accept a thermostat on the top.
  • Relocates Temperature Sender.
  • Fits: Small Block and Big Block Chevy engines
  • Inside Bore is 1.900"