SPRING INTO SAVINGS: 10-50% discount on all OEM parts!

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

Trusted Since 2005★★★★★ 4.7/5 Stars
My Account
& Order Status
Contact Us

PartsPak.com orders will be processed and fulfilled by Crowley Outdoors. For support please call (800) 580-0720.

Flat $9.95 Shipping on ALL parts orders

We offer flat $9.95 shipping on ALL parts orders. (Complete Engines, Lower Units, Sterndrives, and Oversize items excluded). In addition, orders over $89 have reduced cost express shipping available at checkout.

shipping mapshipping map legend

You can get a rough idea of standard transit times from the map above.

All diagrams for this model

1991 Outboard 50hp - 50EJRP CRANK 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 50EJRP - CRANK PISTON
Change View:
Crankshaft Assembly
1
Yamaha Motors
Crankshaft Assembly6H4-11400-14-00
Required: 1
CRANKSHAFT ASSY
Cross Ship
Leaves in 2-5 days
$1389.10
$1180.73
You save $208.37
More details
Drive Gear
2
Yamaha Motors
Drive Gear6H4-11536-00-00
Required: 1
.GEAR, DRIVE
Cross Ship
Leaves in 2-5 days
$138.55
$117.77
You save $20.78
More details
Bearing
3
Yamaha Motors
Bearing93306-305U8-00
Required: 1
.BEARING
Cross Ship
Leaves in 2-5 days
$55.99
$44.79
You save $11.20
More details
Bearing
4
Yamaha Motors
Bearing93306-305U8-00
Required: 1
.BEARING
Cross Ship
Leaves in 2-5 days
$55.99
$44.79
You save $11.20
More details
Plate Washer
6
Yamaha Motors
Plate Washer90201-50306-00
Required: 1
WASHER, PLATE
Cross Ship
Leaves in 2-5 days
$6.60
$5.61
You save $0.99
More details
Piston (0.50MM O/S)
7
Yamaha Motors
Piston (0.50MM O/S)6H4-11636-01-00
Required: 3
PISTON (0.50MM O/S)
Cross Ship
Leaves in 2-5 days
$122.35
$104.00
You save $18.35
More details
Piston (Standard)
7
Yamaha Motors
Piston (Standard)6H4-11631-01-95
Required: 3
PISTON (STD)
Cross Ship
Leaves in 2-5 days
$122.35
$103.95
You save $18.40
More details
Piston Ring Set (0.50Mm O/S)
8
Yamaha Motors
Piston Ring Set (0.50Mm O/S)6H4-11601-20-00
Required: 3
PISTON RING SET (0.50MM O/S)
Cross Ship
Leaves in 2-5 days
$65.15
$55.38
You save $9.77
More details
Piston Ring Set (Standard)
8
Yamaha Motors
Piston Ring Set (Standard)6H4-11601-00-00
Required: 3
PISTON RING SET (STD)
Cross Ship
Leaves in 2-5 days
$71.90
$61.12
You save $10.78
More details
Piston Pin
9
Yamaha Motors
Piston Pin648-11633-00-00
Required: 3
PIN, PISTON
Cross Ship
Leaves in 2-5 days
$13.90
$11.82
You save $2.08
More details
Piston Pin Clip
12
Yamaha Motors
Piston Pin Clip6H4-11634-01-00
Required: 6
CLIP, PISTON PIN
Cross Ship
Leaves in 2-5 days
$2.70
$2.29
You save $0.41
More details
Oil Seal Housing
14
Yamaha Motors
Oil Seal Housing6H4-15396-03-CA
Required: 1
HOUSING, OIL SEAL
Supersedes: 6H4-15396-02-5B
Cross Ship
Leaves in 2-5 days
$34.60
$29.41
You save $5.19
More details
Hexagon Bolt
18
Yamaha Motors
Hexagon Bolt97313-06020-00
Required: 1
BOLT, HEXAGON
Cross Ship
Leaves in 2-5 days
$4.50
$3.82
You save $0.68
More details

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

Evinrude & JohnsonMercury MarineYamaha MarineSuzuki MarineVolvo Penta