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Lil Red Barn Set of 2 Standard Pistons with Rings Compatible with Kohler Engines CV23, CH23, CV730, CH730 80mm Bore Replaces 25-874-54-S Two Day Standard Shipping to All 50 States!

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$169.95

$ 77 .99 $77.99

In Stock
  • Quality Reproduction from Lil Red Barn not made in China or Taiwan
  • Be Sure To Verify Your Engine Has A 80mm Bore Before Ordering!
  • This CH25s is designed to be a general service engine for anyone needing a 25hp power source
  • The CH25s comes standard with a oil filter and oil cooler
  • The CH25s is self contained and other than a battery does not require any other electrical hook up or controls.


Compatible with Kohler CV23, CH23, CV730, CH730 engines with 80MM bore, 25-874-54-S. Piston and Piston Rings Specs Piston to Piston Pin Clearance, mm (in) ..................... 0.006-0.017 (0.0002-0.0007) Piston Pin Bore Inside Diameter, mm (in) ..................... 17.006-17.012 (0.6695-0.6698) Piston Pin Outside Diameter, mm (in) ..................... 16.995-17.000 (0.6691-0.6693) Top Compression Ring Groove Clearance, mm (in) ..................... 0.025-0.048 (0.0010-0.0019) Middle Compression Ring Groove Clearance, mm (in) ..................... 0.015-0.037 (0.0006-0.0015) Oil Control Ring Groove Clearance, mm (in) ..................... 0.026-0.176 (0.0010-0.0070) Top and Middle Compression Ring End Gap, mm (in) ..................... 0.25-0.56 (0.0100-0.0224) Piston Thrust Face Outside Diameter (Std), mm (in) ..................... 82.986 (3.2671) Piston Thrust Face Outside Diameter (Wear Limit), mm (in) ..................... 82.841 (3.2614) Piston Thrust Face to Cylinder Bore Clearance, mm (in) ..................... 0.001-0.045 (0.039-0.0018)