Hardin Marine

Replacement O-ring For Cam Lock Fuel Fills 122-10XX and Power Steering Cap 625-8171

Replacement O-Ring for LS1 - LS3 Thermostatic Cooling System 625-4535. Qty. (4) used in application.

These fit the square ports on the base of the unit against the block, and the internal connection between the top cover and base.

Replacement O-Ring for LS1 - LS3 Thermostatic Cooling System 625-4535. Qty. (2) used in application.

These fit the round ports on the base of the unit against the block.

Replacement O-ring For Plate Style Oil Cooler Jam Nut/Adapter Fitting

Replacement O-Rings for later model 620-300100 crossover kits.

Replacement O-Ring, -16 AN for Oil Fill Cap 620-154023

• Big Block Chevy
• Replacement O-Rings for 125-457330

• Small Block Chevy
• Replacement O-Rings for 125-457320

Replacement Plastic Bypass Valve for 540-160200, 540-160210 and 540-160465 Thermostat Kits.

Replacement Retainer Ring for 540-160200, 540-160210 and 540-160465 Thermostat Kits.

Replacement Screen for Hardin Generation 2 Offshore Sea Strainer - 1/2" Shaft

Designed to fit Hardin Offshore Generation 2 (420-913222) Sea Strainers only.

This kit includes Seals and O-rings for replacing worn-out ones in a Mayfair hydraulic steering ram.
Includes instructions.

NOTE: Fits 100% of Production Year 2000 and above Mayfair Rams, may work on other rams but NO guarantee.

This kit contains the fittings and bolts to install a pair of risers on a 8.1L / 496 Mercrusier Seaward exhaust system.

This kit contains the fittings and bolts to install a pair of manifolds on a big block Chevy Seaward exhaust system.

This kit contains the gaskets, hoses and bolts to install a pair of risers on a big block Chevy Seaward exhaust system.

This kit contains the fittings and bolts to install a pair of manifolds on a small block Chevy Seaward exhaust system.

This kit contains the gaskets, hoses and bolts to install a pair of risers on a small block Chevy Seaward exhaust system.

Replacement Shaft for Gen 3 1075/1300 Mercury Racing Sea Pump. Replaces OEM Mercury #840053

Replacement Short Spacer for Hardin Generation 2 Offshore Sea Strainer - 1/2" Shaft

Designed to fit Hardin Offshore Generation 2 (420-913222) Sea Strainers only.

• Outer Diameter: 7"
• Inner Diameter: 3"

These high temperature silicone seals slide on your tailpipe to provide a glove-like seal. SOLD EACH!

Replacement Silicone Seal For Transom Rings

The high temp silicone seal slides on to provide a glove-likeseal.   O.D. 5" 7/8

Replacement Spring for 540-160200, 540-160210 and 540-160465 Thermostat Kits.

Replacement Spring for Foot Throttles

This spring is used in Hardin Marine Foot Throttle Models 620-60213 & 620-60214.

Hardin Marine has done it again! This new all 316L stainless steel fabricated thermostat housing replaces the old, and no longer made cast aluminum 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.

Replacement Stainless Steel Trim Pump Bracket - Late Model

The Hardin Marine new replacement Mercury trim pump bracket is a direct replacement for Mercury #862548A1. Made from high quality stainless steel this bracket will not rust and rot like factory OEM one.

Replacement sticker for Mayfair Steering rams