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Reproduction style replacement for H-D 2938-40M
With socket screw holding function on the long arm
OEM style replacement for 25582-73
no special tool needed
If you need 2
KB Performance, 88" to 95" Twin Cam piston kit. STD - 99-06 88" Twin Cam (NU) 541417 Reproduction style replacement for H-D88" (3 3 4") to 95" (3 7 8") big bore conversion forged piston set. 9. 25: 1 CR with 85cc head. Piston weight 350gr. Piston pin weight 89gr. Piston pin dia. . 927" offset. Head type: Dome with 6. 7cc. Compression height 1. 263". Bore 3. 875". Stroke 4. 000". Rod length 7. 667". Cyl. length 4. 938". All KB forged pistons are made from 4032 alloy, a 11% silicon alloy that is formed in a forging press. Forging aluminum gives a superior strength and
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