Yamaha Outboard .50 mm OS Inline Piston Rings

Refine Parts List
HP/Model

(9.9 to 50)
Years

(1984 - Up)

HP/Model

Years

.50mm RINGS

9.91984-200318-3978
151984-200318-3978
251988-Up18-3962
401984-198818-3962
401992-199418-3962
401996-200318-3962
C401997-199918-3962
C402001-200218-3962
P40199818-3962
501986-198818-3962
501996-199718-3962
501999-200018-3962
502002-200318-3962
C501998-199918-3962
C50200118-3962
P50199618-3962
P501987-198818-3962

HP/Model

Years

.50mm RINGS

Refine Parts List
HP/Model

(9.9 to 50)
Years

(1984 - Up)
Blowout
Save 11%-24% Off.
.50 mm OS Inline Piston Rings - Sierra
Your Price: $19.99
Part # 18-3962
SHIPS TODAY!* if ordered in 11 hrs 52 mins.
No Reviews | Write Review
Replaces OEM part #
  • YAMAHA 6H4-11610-20-00
.50 OS Bore Inline Piston Ring Japanese Model - Sierra
Your Price: $12.99
Part # 18-3978
SHIPS TODAY!* if ordered in 11 hrs 52 mins.
No Reviews | Write Review
Replaces OEM part #
  • MERCURY MARINE 39-15322M
  • YAMAHA 682-11610-21-00
Mallory Ring Set, .5mm 9-54805
Spring Sale Price: $24.99
Save: $8.00
(24% Off $32.99)
Part # 9-54805
SHIPS TODAY!* if ordered in 11 hrs 52 mins.
No Reviews | Write Review
Replaces Original Equipment Manufacturer(OEM):Yamaha
Fits Application:60-70HP
Mallory Ring Set, .5mm 9-54809
Spring Sale Price: $28.99
Save: $4.60
(13% Off $33.59)
Part # 9-54809
SHIPS TODAY!* if ordered in 11 hrs 52 mins.
No Reviews | Write Review
Replaces Original Equipment Manufacturer(OEM):Yamaha
Fits Application:40HP
 
Mallory Ring Set, .5mm 9-54813
Spring Sale Price: $27.99
Save: $8.00
(22% Off $35.99)
Part # 9-54813
SHIPS TODAY!* if ordered in 11 hrs 52 mins.
Hurry! Only 1 left in stock
No Reviews | Write Review
Replaces Original Equipment Manufacturer(OEM):Yamaha
Fits Application:85-90HP
Mallory Ring Set, .5mm 9-54801
Spring Sale Price: $25.99
Save: $3.50
(11% Off $29.49)
Part # 9-54801
SHIPS TODAY!* if ordered in 11 hrs 52 mins.
No Reviews | Write Review
Replaces Original Equipment Manufacturer(OEM):Yamaha
Fits Application:25-50HP
Sierra
Inline Piston Rings for Yamaha
This product ships in 1 business day.

Add to Cart and enter your Postal Code to determine the shipping charges and estimated delivery date.
* Most products and orders leave our warehouse in 1 business day. However, select items may take more processing time. Alaska and Hawaii orders please add 1 additional warehouse processing day.
Standard Shipping Policies
Great Boating Days are Ahead!
Enjoy Extra Discounts 5-20% Off During the SPRING SAVINGS SALE!
Great Boating Days are Ahead!
Enjoy Extra Discounts 5-20% Off During the SPRING SAVINGS SALE!