4th of JULY SALE - Save an Extra 10-50% Off!
Fantastic Savings Everywhere!

Mariner Powerhead Base Gaskets

Blowout
Save 18%-41% Off.
Mounting Plate To Driveshaft Housing Gasket - 18-0333 - Sierra
Great Days Sale Price: $8.09
Save: $3.54
(30% Off $11.63)
Part # 18-0333 ValueShip™ Eligible
SHIPS TOMORROW!* if ordered in 18 hrs 15 mins.
Hurry! Only 1 left in stock
No Reviews | Write Review | Ask Question
Replaces OEM part #
  • MERCURY MARINE 27-39401
Powerhead Base Gasket - 18-0103 - Sierra
Great Days Sale Price: $8.99
Save: $2.81
(23% Off $11.80)
Part # 18-0103 ValueShip™ Eligible
Replaces OEM part #
  • MERCURY MARINE 27-79650-1
Powerhead Base Gasket - 18-0139 - Sierra
Great Days Sale Price: $8.99
Save: $3.51
(28% Off $12.50)
Part # 18-0139 ValueShip™ Eligible
SHIPS TOMORROW!* if ordered in 18 hrs 15 mins.
Hurry! Only 1 left in stock
No Reviews | Write Review | Ask Question
Replaces OEM part #
  • MERCURY MARINE 27-88451-1
Powerhead Base Gasket - 18-0319 - Sierra
Great Days Sale Price: $8.99
Save: $2.76
(23% Off $11.75)
Part # 18-0319 ValueShip™ Eligible
SHIPS TOMORROW!* if ordered in 18 hrs 15 mins.
No Reviews | Write Review | Ask Question
Replaces OEM part #
  • MERCURY MARINE 27-828553
  • For: Mercury/Mariner 30-60 HP 2 cyl and 3 cyl
Powerhead Base Gasket V6 - 18-0369 - Sierra
Great Days Sale Price: $8.09
Save: $3.42
(29% Off $11.51)
Part # 18-0369 ValueShip™ Eligible
SHIPS TOMORROW!* if ordered in 18 hrs 15 mins.
Hurry! Only 1 left in stock
No Reviews | Write Review | Ask Question
Replaces OEM part #
  • MERCURY MARINE 27-75909
Powerhead Base Gasket - 18-0378 - Sierra
Great Days Sale Price: $35.09
Save: $11.94
(25% Off $47.03)
Part # 18-0378 ValueShip™ Eligible
SHIPS TOMORROW!* if ordered in 18 hrs 15 mins.
No Reviews | Write Review | Ask Question
Replaces OEM part #
  • MERCURY MARINER 27-823142 2
  • MERCURY MARINER 27-823142
4.5-9.8 Hp Powerhead Base Gasket - 18-0385 - Sierra
Great Days Sale Price: $2.69
Save: $0.66
(19% Off $3.35)
Part # 18-0385 ValueShip™ Eligible
SHIPS TOMORROW!* if ordered in 18 hrs 15 mins.
No Reviews | Write Review | Ask Question
Replaces OEM part #
  • MERCURY MARINE 27-89937
  • For: Mercury/Mariner 4.5 - 9.8 HP
Powerhead Base Gasket - 18-0643 - Sierra
Great Days Sale Price: $12.59
Save: $4.50
(26% Off $17.09)
Part # 18-0643 ValueShip™ Eligible
SHIPS TOMORROW!* if ordered in 18 hrs 15 mins.
No Reviews | Write Review | Ask Question
Replaces OEM part #
  • MERCURY MARINE 27-18307 6
  • MERCURY MARINE 27-18307-1
Powerhead Base Gasket - 18-0670 - Sierra
Great Days Sale Price: $8.09
Save: $1.82
(18% Off $9.91)
Part # 18-0670 ValueShip™ Eligible
SHIPS TOMORROW!* if ordered in 18 hrs 15 mins.
No Reviews | Write Review | Ask Question
Replaces OEM part #
  • MERCURY MARINER 27-43007-5
Powerhead Base Gasket 65 Hp - 18-0904 - Sierra
Great Days Sale Price: $8.99
Part # 18-0904 ValueShip™ Eligible
SHIPS TOMORROW!* if ordered in 18 hrs 15 mins.
No Reviews | Write Review | Ask Question
Replaces OEM part #
  • MERCURY MARINE 27-60317
Representative Photo Only
Powerhead Base Gasket, Glm - 18-0934-1 - Sierra
Great Days Sale Price: $36.89
Save: $13.70
(27% Off $50.59)
Part # 18-0934-1 ValueShip™ Eligible
SHIPS TOMORROW!* if ordered in 18 hrs 15 mins.
Hurry! Only 1 left in stock
No Reviews | Write Review | Ask Question
Replaces OEM part #
  • MERCURY MARINE 27-78069
Powerhead Base Gasket - 18-0988 - Sierra
Great Days Sale Price: $6.29
Save: $1.95
(23% Off $8.24)
Part # 18-0988 ValueShip™ Eligible
SHIPS TOMORROW!* if ordered in 18 hrs 15 mins.
No Reviews | Write Review | Ask Question
Replaces OEM part #
  • MERCURY MARINE 27-62860-1
Powerhead Base Gasket - 18-2835-9 - Sierra
Great Days Sale Price: $10.79
Save: $5.22
(32% Off $16.01)
Part # 18-2835-9 ValueShip™ Eligible
SHIPS TOMORROW!* if ordered in 18 hrs 15 mins.
Hurry! Only 1 left in stock
No Reviews | Write Review | Ask Question
Replaces OEM part #
  • MERCURY MARINE 27-69238-1
  • For: Mercury/Mariner 52-90-115-140 HP
  • Pgk of 2
Powerhead Gasket - Sierra
Your Price: $9.99 Discontinued
Part # 18-2846 ValueShip™ Eligible
No Reviews | Write Review | Ask Question
Replaces OEM part #
  • MERCURY MARINE 27-47257
Mallory Gasket, Powerhead 9-60059
Mallory Gasket, Powerhead 9-60059
Great Days Sale Price: $7.03
Save: $5.08
(41% Off $12.11)
Part # 9-60059 ValueShip™ Eligible
SHIPS TOMORROW!* if ordered in 18 hrs 15 mins.
Hurry! Only 1 left in stock
No Reviews | Write Review | Ask Question
Replaces GLM #:31980
Replaces Original Equipment Manufacturer(OEM):Mercury
Replaces Original Equipment Manufacturer # (OEM #):27-88451-1
Fits Application:50/60 3cyl.
Mallory Gasket, Base 9-60045
Mallory Gasket, Base 9-60045
Great Days Sale Price: $23.90
Save: $16.05
(40% Off $39.95)
Part # 9-60045 ValueShip™ Eligible
SHIPS TOMORROW!* if ordered in 18 hrs 15 mins.
Hurry! Only 1 left in stock
No Reviews | Write Review | Ask Question
Replaces GLM #:37620
Replaces Original Equipment Manufacturer(OEM):Mercury
Replaces Original Equipment Manufacturer # (OEM #):27-823142-2
Fits Application:V-6 small hole exhaust
 
Powerhead Base Gasket 18-0982-1 - 18-0982-1 - Sierra
Great Days Sale Price: $13.02
Save: $5.34
(29% Off $18.36)
Part # 18-0982-1 ValueShip™ Eligible
SHIPS TOMORROW!* if ordered in 18 hrs 15 mins.
Hurry! Only 1 left in stock
No Reviews | Write Review | Ask Question
Merc. Reed Block Gasket
Merc. Reed Block Gasket
Great Days Sale Price: $1.49
Save: $0.66
(30% Off $2.15)
Part # 516-20
No Reviews | Write Review | Ask Question
    Mercury:
  • 27-13937-6
Merc. 135-210hp Reed Block Gasket
Merc. 135-210hp Reed Block Gasket
Great Days Sale Price: $4.69
Save: $2.07
(30% Off $6.76)
Part # 516-27
No Reviews | Write Review | Ask Question
    Mercury:
  • 27-14697 2
OMC Air Silencer Gasket
OMC Air Silencer Gasket
Great Days Sale Price: $3.11
Save: $1.38
(30% Off $4.49)
Part # 515-12
No Reviews | Write Review | Ask Question
    OMC:
  • 321794
Sierra
Average Customer Review for Powerhead Base Gasket - 18-0103 - Sierra
Full StarFull StarFull StarFull StarFull Star Based On 1 Review | Write Review
Full StarFull StarFull StarFull StarFull StarMercury Classic 40
by Samuel from Princeton, West Virginia on March 28, 2012
Good product. Packaged well. It fit perfectly and corrected my problem.
(0 of 1 people found this review helpful)
Was this review helpful?
Q:
Does this fit my 1985 mariner?
A:
We cross reference by OEM number to know if it works for your motor. It will depend on your HP and serial number. If you would like assistance in getting your OEM number you can call us at 1-800-914-1123.
Q:
Looking for the powerhead gasket for a 1985 mariner 150 V-6 is this it ?
A:
To cross reference OEM numbers we need a serial number. You can call in at 1-800-914-1123 if you need more assistance with that.
Ask a question for
Question & Answer Guidelines
This product ships in 1 to 3 business days.

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
Gear up for Summer Boating.
Extra 10-50% Savings during the 4th of July Sale!