Piston Assembly 594539

Part Number: 594539

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Questions & Answers

Repair Instructions

*This part replaces obsolete part #: 796172, 699052, 699025, 697159, 792118, 791937 and 792507.

Product Information

Warning: California's Proposition 65

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Compatibility

This part is compatible with the following machines:

Toro

71286 (250000001-250999999)(2005) Lawn Tractor
71286 (260000001-260999999)(2006) Lawn Tractor
71286 (270000001-270999999)(2007) Lawn Tractor
71429 (250000001-250999999)(2005) Lawn Tractor
74350 (230000001-230999999)(2003) Lawn Tractor
74350 (240000001-240000178)(2004) Lawn Tractor
74350 (240000179-240999999)(2004) Lawn Tractor
74351 (240000001-240999999)(2004) Lawn Tractor
74352 (250000001-250999999)(2005) Lawn Tractor
74353 (260000001-260999999)(2006) Lawn Tractor
74419 (270000001-270999999)(2007) Lawn Tractor
74420 (270000001-270999999)(2007) Lawn Tractor
74432 (260000001-260999999)(2006) Lawn Tractor
74432 (270000001-270999999)(2007) Lawn Tractor
74433 (260000001-260999999)(2006) Lawn Tractor
74433 (270000001-270999999)(2007) Lawn Tractor
74433 (280000001-280999999)(2008) Lawn Tractor
74433 (290000001-290999999)(2009) Lawn Tractor
74502 (230000001-230999999)(2003) Lawn Tractor
74502 (220000001-220999999)(2002) Lawn Tractor
74570 (230000001-230999999)(2003) Lawn Tractor
74573 (270000001-270999999)(2007) Lawn Tractor
74573 (280000001-280999999)(2008) Lawn Tractor
74573 (290000001-290000480)(2009) Lawn Tractor
74573 (290000481-290999999)(2009) Lawn Tractor
74582 (270000001-270999999)(2007) Lawn Tractor
74582 (280000001-280999999)(2008) Lawn Tractor
74582 (290000001-290999999)(2009) Lawn Tractor

74602 (240000001-240999999)(2004) Lawn Tractor
70185 (280899565-290999999)(2009) Lawn Tractor
70186 (240000001-240999999)(2004) Lawn Tractor
70186 (250000001-250999999)(2005) Lawn Tractor
70186 (260000001-260999999)(2006) Lawn Tractor
70186 (260732867-270805635)(2007) Lawn Tractor
70186 (270805636-280899434)(2008) Lawn Tractor
70186 (280899435-290999999)(2009) Lawn Tractor
70185 (240000001-240999999)(2004) Lawn Tractor
70185 (250000001-250999999)(2005) Lawn Tractor
70185 (260000001-260999999)(2006) Lawn Tractor
70185 (270000001-270805705)(2007) Lawn Tractor
70185 (270805706-280899564)(2008) Lawn Tractor
71228 (220010001-220999999)(2002) Lawn Tractor
71228 (230000001-230999999)(2003) Lawn Tractor
71228 (240000001-240999999)(2004) Lawn Tractor
71233 (220000001-220999999)(2002) Lawn Tractor
71233 (230000001-230999999)(2003) Lawn Tractor
71243 (240000001-240999999)(2004) Lawn Tractor
71252 (280000001-280999999)(2008) Lawn Tractor
71252 (290000001-290999999)(2009) Lawn Tractor
71253 (280000001-280999999)(2008) Lawn Tractor
71253 (290000001-290999999)(2009) Lawn Tractor
71253 (310000001-310999999)(2010) Lawn Tractor
71283 (220010001-220999999)(2002) Lawn Tractor
71283 (230000001-230999999)(2003) Lawn Tractor
71283 (240000001-240999999)(2004) Lawn Tractor
71285 (240000001-240999999)(2004) Lawn Tractor

Briggs and Stratton

Expand the 150+ compatible machines

Products Compatibility

This item works with the following types of products:

• Engine
• Lawn Tractor

Questions & Answers for Piston Assembly

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Repair Instructions: Submitted by Customers Like You

2 of 3 people found this instruction helpful

Tool Type:

Lawn Tractor

Parts Used:

Piston Assembly - 594539

Repair Difficulty:

Expert

Time Spent Repairing:

1-2 hours

Tools Used:

Screwdriver, Pliers, Socket set, Wrench Set, Cylinder hone and piston ring compressor

Broke rod and counterweight link1 disassembled

Removed engine from mower
Disassembled engine, Removed head from block.
Removed lower pan, remove crank counterweight assembly, Removed piston/broken rod
Clean engine with power washer. Checked Main bearing, bore, camshaft measurements before installing crankshaft/ counterweight assembly. Installed piston/rod/ring assembly. Torqued rod bearing caps to spec. Installed cam assembly. Installed oil slinger assembly. Installed lower pan torqued in correct order. Installed head, torqued to spec, installed push rods and checked tapped clearance. Put on windings ring, flywheel, starter, shield wiring, rocker cover. Installed engine on mower, filled with oil and started running at moderate speed. Finished assembling mower grill hood etc.

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Product Information