FALL CLEARANCE: 10-50% discount on all OEM parts!

Unless prohibited by manufacturer. Does not include aftermarket products. Priced as marked.

Contact Us
My Account
& Order Status
Overstock
Up to 50% off
Find all guaranteed-fit parts for your motorcycle
Where is my model number?
All diagrams for this model

1979 Street Bike XS400 - XS400 (3N7) [999] CRANKSHAFT & PISTON diagram

Reference numbers in this diagram are listed below — scroll down to order. ALL PARTS LISTED ARE GENUINE OEM.

Drag the image to move around or use the controls below. 🖨 Print this page

Product availability is updated on this page every 24 hours. Add an item to the shopping cart to view its current status
Click on
9
to see part
9
Ships Now
9
Ships Later
9
Out of Stock
Yamaha Motors XS400 (3N7) [999] - CRANKSHAFT & PISTON
Change View:
PISTON (0.75MM O/S)
6
Yamaha Motors
PISTON (0.75MM O/S)1M0-11637-00
Required: 2
PISTON (0.75MM O/S)
Price unavailable
PISTON (0.25MM O/S)
6
Yamaha Motors
PISTON (0.25MM O/S)1M0-11635-00
Required: 2
PISTON (0.25MM O/S)
Price unavailable
PISTON (0.50MM O/S)
6
Yamaha Motors
PISTON (0.50MM O/S)1M0-11636-00
Required: 2
PISTON (0.50MM O/S)
Price unavailable
PISTON (1.00MM O/S)
6
Yamaha Motors
PISTON (1.00MM O/S)1M0-11638-00
Required: 2
PISTON (1.00MM O/S)
Price unavailable
PISTON (STD)
6
Yamaha Motors
PISTON (STD)2L0-11631-00-X0
Required: 2
PISTON (STD)
Price unavailable
PISTON RING SET
7
Yamaha Motors
PISTON RING SET1M0-11610-21
Required: 2
PISTON RING SET
Price unavailable
PISTON RING SET
7
Yamaha Motors
PISTON RING SET1M0-11610-41
Required: 2
PISTON RING SET
Price unavailable
PISTON RING SET
7
Yamaha Motors
PISTON RING SET1M0-11610-11
Required: 2
PISTON RING SET
Price unavailable
PISTON RING SET
7
Yamaha Motors
PISTON RING SET1M0-11610-31
Required: 2
PISTON RING SET
Price unavailable
PIN, PISTON
8
Yamaha Motors
PIN, PISTON1M0-11633-00
Required: 2
PIN, PISTON
Price unavailable
-10%
Piston Pin
8
Yamaha Motors
Piston Pin29U-11633-00-00
Required: 2
PIN, PISTON
Supersedes: 2A2-11633-00-00
Cross Ship
Leaves in 2-5 days
$45.99
$41.39
You save $4.60
More details
RIM
9
Yamaha Motors
RIM94450-17044
Required: 4
RIM
Price unavailable

Required quantity shown is the quantity used per assembly. Prices are based on a quantity of one and all items are sold individually.

Back to top
Our verified social media accounts

Beware of impersonators