Two Engine Piston Kits Compatible with Briggs & Stratton Model 350400, 350700 35 Cubic Inch Standard Vanguard Engines 72mm #843792

Replacement 72mm Piston Kit With 3 Piece Rings Compatible With Briggs And Stratton Vanguard 16hp & 18hp Engines That Use This Part Number. V Twin Engines With 72mm Bore, Make Sure Your Briggs Vanguard Engine Uses These Pistons. Briggs Part Number 843792, If Unsure Message Me Your Model, Type & Code Numbers Note: These Piston & Ring Kit Compatible With These Briggs & Stratton Part Numbers: 843792 Pistons With Rings. Used After Code Date 07062900

• This small engine piston is Compatible with Briggs and Stratton 35 cubic inch Vanguard engines.
• MEASURE THE BORE BEFORE ORDERING - A caliper across the old piston crown settles which version of the engine you have, and it is the only test that does. Ordering by horsepower or by year is how the wrong part ends up on the bench, because the same machine was often built in more than one bore.
• CHECK RING END GAP IN THIS CYLINDER - Not in the old one. Square the ring in the bore, measure the gap with a feeler, and check side clearance in the piston groove while you are there. A ring that is tight at operating temperature will break a land.
• WORK OUT WHY THE OLD ONE FAILED - A scored bore had a cause. A hardened crankshaft seal or a split impulse line leans the mixture out and will take the new piston the same way it took the old one. Pressure and vacuum test the crankcase before the machine goes back together.