Cooling

Allstar Mandrel Bolt 3pk 5/16-18x1in ALL31037 Kit prevents mandrel bolt breakage and is made specifically for use with Allstar ALL31030 crank pulley. Mandrel is attached to the crankshaft pulley with three bolts, while the vibration damper is retained...

Allstar Mandrel Key 1/8in ALL31036 Kit prevents mandrel bolt breakage and is made specifically for use with Allstar ALL31030 crank pulley. Mandrel is attached to the crankshaft pulley with three bolts, while the vibration damper is retained with the...

Allstar Mandrel Spacer 1.25in ALL31028 Aluminum spacers properly space and align pulleys when used with a 1/8" keyed mandrel. The same spacers are found in the ALL31031 Mandrel Kit. Sold each. Alternate Description MANDREL SPACER 1.25IN Part...

Allstar Mandrel Spacer 1.00in ALL31026 Aluminum spacers properly space and align pulleys when used with a 1/8" keyed mandrel. The same spacers are found in the ALL31031 Mandrel Kit. Sold each. Alternate Description MANDREL SPACER 1.00IN Part...

Allstar Mandrel Spacer .750in ALL31024 Aluminum spacers properly space and align pulleys when used with a 1/8" keyed mandrel. The same spacers are found in the ALL31031 Mandrel Kit. Sold each. Alternate Description MANDREL SPACER .750IN Part...

Allstar Mandrel Spacer .500in ALL31022 Aluminum spacers properly space and align pulleys when used with a 1/8" keyed mandrel. The same spacers are found in the ALL31031 Mandrel Kit. Sold each. Alternate Description MANDREL SPACER .500IN Part...

Allstar Mandrel Spacer .250in ALL31020 Aluminum spacers properly space and align pulleys when used with a 1/8" keyed mandrel. The same spacers are found in the ALL31031 Mandrel Kit. Sold each. Alternate Description MANDREL SPACER .250IN Part...

Allstar Billet Water Neck Spacer ALL30375 Billet aluminum spacer fits between intake manifold and water neck providing connection options for temperature senders or additional water lines. 1" tall spacer fits most Chevy V8, includes four 1/2" NPT ports...

Allstar Radiator Hose Restrictor ALL30242 Lower radiator hose restrictor helps keep the water in your radiator longer to improve cooling. Machined aluminum restrictor has a 5/8" I.D. and will fit into most 1-3/4" radiator outlets or radiator hose. ...

Allstar Water Outlet Restrictor Kit ALL30241 Restrictor replaces the thermostat to control the flow of water through the cooling system. Kit contains three 2-1/8" O.D. aluminum restrictors with 5/8", 3/4" and a 1" center I.D. hole that fit most GM V8 or...

Allstar Radiator Hose Reducer 1.75 to 1.5 ALL30240 Rubber reducer allows a lower radiator hose with a molded-in spring to be used as an upper radiator hose. In continuous high RPM applications, the upper hose can collapse limiting coolant flow. Upper...

Allstar Fan Spacer Kit 3.50 ALL30192 Fan spacers position fan closer to radiator or fan shroud and away from pulleys. 1-1/2" and larger spacers are uniquely designed allowing spacer to remain bolted to water pump while changing fans. Aluminum spacers...