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Le Hangar 23
Shop/Category/CYLINDER AND CRANKSHAFT/Piston complete
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Also known as40-970
DiagramCYLINDER AND CRANKSHAFT
Subsystemengine bottom
Listed in parts booksNot catalogued by year yet

Piston complete

A complete piston for the bottom end, catalogued for 1969 under 40-970; call to confirm exact fitment.

PN · 40-0970

This is a complete piston, catalogued under part number 40-970, and it shows up in the parts book in the CYLINDER AND CRANKSHAFT section for a single model year, 1969. That figure grouping tells us it belongs down in the bottom end of the engine, working with the cylinder bore and connecting to the crankshaft assembly through the rod - which is exactly where a piston lives.

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Our catalog record on this one is thin. We don't have a bore size, ring count, or material spec attached to it, and there's nothing in our records tying it to a specific model. If you're trying to match this against what's in your engine, bring us the numbers off your cylinder barrel or give us a call and we'll work through fitment before you order.

A piston like this is a wear item that takes the direct hit from combustion, so getting the right one matters more than most parts on the bike. Don't guess on this one - confirm before you buy.

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We've never carried this one. Tell us what you're after and we'll go looking — you'll get a price and photos before you commit to anything.

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Any questions about this part?

Ed is at the counter. Tell him what you're working on or what doesn't fit, and he'll take it from there with this part already on the bench.