Contact Sets - Yamaha

• 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.
• Thermosat NOT Included.
• Works with Mercruiser 860256A4 MCM & MIE V6 – V8 (305 & 350cid) w/Bravo Drive
• Replaces Sierra 18-1989 and 18-3530-1

Chevy Water Outlet Billet 3/4" NPT

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

Key Features:

• Standard rotation (RH)

Additional Details:

• Teeth: 13-21
• Fits: Alpha One Gen II (except 2.00 & 2.40 ratio) (s/n 0F680000 & Up)

Interchanges/Replaces

Mercruiser Stern Drive

• 43-828072A3
• 43-878087A2

• 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.

• 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.