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  • Cleaning Equipment and Supplies
  • Crack Detection & Repair
  • Disassembly & Assembly
  • Cylinder Head Rebuilding
  • Block Rebuilding
  • Connecting Rod, Wrist Pin and Piston
  • Surface Milling and Grinding
  • Crankshaft Reconditioning
  • Flywheel Grinder Equipment & Supplies
  • Diamond Dresser Tips
  • Liquids and Chemicals
  • Gauges and Measuring Instruments
  • Equipment Manuals
  • Machine Repair Parts
  • Used Equipment and Tooling

    • Shop by Brand

  • BEAM
  • Neway
  • Sioux
  • Sunnen
  • Kwik Way
  • Van Norman
  • Black & Decker
  • Berco
  • Storm Vulcan
  • Winona Van Norman
  • View all Brands

    • Sioux 657 Valve Grinder Parts

    Parts for the Sioux Model 657 Valve Grinder

    • 100 Grit 4" Valve Grinder Stone Green Stone

      100 Grit 4" Valve Grinder Stone Green Stone

      100 Grit Valve Grinder Stone for Grinding Titanium Valves (Green Stone).4" Diameter, 1" overall thickness with a 1/2" offset. 5/8" Hole Diameter Fits all older Sioux & Thor Valve Grinders that use a 4" Stone. Fits Black & Decker and Van Dorn A,...

      $46.20
      Add to Cart
    • 54 grit 4" Valve Grinder Stone

      54 grit 4" Valve Grinder Stone

      54 Grit Stem Grinder Stone.  4" Diameter,  Straight Cup style, 1" overall thickness with 5/8" Hole Diameter  Fits All Sioux / Thor Model Valve Grinders Except 682 and 685L, KO Lee Model K500 and K403COEM Part...

      $32.40
      Add to Cart
    • 60 Grit 4" Valve Grinder Stem Grinding Stone

      60 Grit 4" Valve Grinder Stem Grinding Stone

      60 Grit General Purpose Valve Grinder Stone.  4" Diameter,  Straight Cup style, 1" overall thickness with 5/8" Hole Diameter  Fits All Sioux Model Valve Grinders EXCEPT 682 & 685L OEM Part Number: 81

      $36.95
      Add to Cart
    • 80 Grit 4" Valve Grinder Stone

      80 Grit 4" Valve Grinder Stone

      80 Grit Ruby Red General Purpose Valve Grinder Stone.4" Diameter, 1" overall thickness with a 1/2" offset. 5/8" Hole Diameter Fits all older Sioux & Thor Valve Grinders that use a 4" Stone. Fits Black & Decker and Van Dorn A, B, C, LW, M, MW, N,...

      $38.95
      Add to Cart
    • 80 Grit 4" Valve Grinder Stone General Purpose

      80 Grit 4" Valve Grinder Stone General Purpose

      80 Grit General Purpose Valve Grinder Stone.4" Diameter, 1" overall thickness with a 1/2" offset. 5/8" Hole Diameter Fits all older Sioux & Thor Valve Grinders that use a 4" Stone. Fits Black & Decker and Van Dorn A, B, C, LW, M, MW, N, NW, NWA,...

      $36.95
      Add to Cart
    • 90 Grit 4" Valve Grinder Stone

      90 Grit 4" Valve Grinder Stone

      90 Grit General Purpose Valve Grinder Stone.  4" Diameter,  1" overall thickness with a 1/2" offset. 5/8" Hole Diameter  Fits all older Sioux & Thor Valve Grinders that use a 4" Stone. Fits Black & Decker...

      $36.95
      Add to Cart
    • Ruby 4" Valve Grinder Stone

      Ruby 4" Valve Grinder Stone

      Ruby Valve Grinder Stone.  4" Diameter,  Straight Cup style, 1" overall thickness with 5/8" Hole Diameter  Fits All Sioux Model Valve Grinders EXCEPT 682 & 685L OEM Part Number: 81

      $36.95
      Add to Cart
    • Sioux Flat Belt - 14410

      Sioux Flat Belt - 14410

      Sioux Flat Drive Belt # 14410Flat Belt @ 23.7" in length x 3/4" width and 1/8" thickFits many of the older series Sioux Valve grinders such as models 620, 650, 655 Exc... NOTE: Some customers have had problems on the model 6024 and 624 machines because...

      $61.95
      Add to Cart
    • Sioux Valve Grinder Belt - 14406

      Sioux Valve Grinder Belt - 14406

      Sioux Vee Belt # 14406 (Old Sioux Number: 152) for the following Sioux Valve Grinder Models: 620, 624, 650, 655, 657, 660, 620UN, 657UN, 6024, and 6024G. Replacement Auxilary Shaft Drive Belt (Belt from Electric Motor to Auxilary Shaft)

      $14.95
      Add to Cart
    • Sioux Valve Grinder Belt - 14409.

      Sioux Valve Grinder Belt - 14409.

      Sioux Vee Belt # 14409  (Old Sioux number 151) for the following Sioux Valve Grinder Models: 620, 624, 650, 657, 660, 662, 663, 620UN, 657UN, 6024, and 6024G. Replacement Chuck Drive Belt (Belt from Auxilary Shaft to Spindle inside of the chuck)

      $14.95
      Add to Cart
    • Small Valve Stem Collet Adapter

      Small Valve Stem Collet Adapter

      Valve Grinder Chuck Adapter for Grinding Valves with Small Diameter Valve Stems. Built in internal back stop for fast valve setup. Fits in chucks that will accept a 1/2 valve stem. Comes complete with collets to accept valve stems ranging from .188"...

      $178.95
      Add to Cart
    • Valve Grinder Oil / Coolant - One Gallon

      Valve Grinder Oil / Coolant - One Gallon

      1 GallonGRINDING OIL FOR VALVE REFACERS Specially formulated grinding oil for use in all valve refacing machines. Extends wheel life while allowing for a better surface finish and cooling of the work piece. Inhibits rust, eliminates foaming and rancidity.

      $30.68
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