Johnson Outboard 4HP OEM Parts Diagram for Crankshaft and Piston

#	Description	Price	Qty
1	PISTON ASSY., .030 O.S. 0388728 Ships in 2 to 3 days	~~$101.49~~ $91.34	Add
1	PISTON ASSY., .020 O.S. 0388727	Unavailable
1	PISTON ASSY., Std 0388726	Unavailable
2	RING SET., .020 O.S. 0383921	Unavailable
2	RING SET, Std 0383920	Unavailable
2	RING SET, .030 O.S. 0384312	Unavailable
3	RETAINING RING 0120960 In Stock	~~$7.25~~ $5.43	Add
4	WRIST PIN 0323034 Ships in 2 to 3 days	~~$13.87~~ $12.77	Add
5	CONNECTING ROD ASSY 0388694 Ships in 2 to 3 days	~~$33.99~~ $31.27	Add
6	SCREW, Rod cap 0324365 Ships in 2 to 3 days	~~$8.45~~ $7.61	Add
7	CRANKSHAFT 0324916	Unavailable
8	SEAL, Crankshaft 0321831 In Stock	~~$19.49~~ $18.42	Add
9	NEEDLE BEARING ASSY 0383278 Ships in 2 to 3 days	~~$30.99~~ $27.89	Add
10	KEY, Flywheel 0120395 In Stock	~~$11.49~~ $10.86	Add
11	LINERS AND NEEDLES 0388766	Unavailable
12	SEAL, Crank, lower 0323092	Unavailable
13	NEEDLE, Bearing 0388659 Ships in 2 to 3 days	~~$27.99~~ $25.75	Add
14	BALL BEARING 0388771	Unavailable
15	LINERS AND NEEDLES, Center bearing 0388993	Unavailable
16	RETAINING RING, Crankshaft 0323313 Ships in 2 to 3 days	~~$3.99~~ $3.67	Add
17	RETAINING RING, Bearing 0403807 Ships in 2 to 3 days	~~$13.99~~ $12.59	Add

Johnson 4RL79D 1979 Crankshaft and Piston Diagram