Primer Bulb, 5/16
View Larger Photo
Sierra 18-8004EP-1 Primer Bulb, 5/16" Hose Barbs
Price: $22.95
 Discontinued
Save: $11.84
(34% Off $34.79)
Part # 18-8004EP-1
Full StarFull StarFull StarFull StarFull Star
5 Customer Reviews
Write Review  |  Ask Question
(Discontinued)
Primer Bulb, 1/4
View Larger Photo
Sierra 18-8002EP-1 Primer Bulb, 1/4" Hose Barbs
Price: $23.95
 Discontinued
Save: $13.84
(36% Off $37.79)
Part # 18-8002EP-1
Full StarFull StarFull StarFull StarFull Star
2 Customer Reviews
Write Review  |  Ask Question
(Discontinued)
Primer Bulb, 3/8
View Larger Photo
Sierra 18-8005EP-1 Primer Bulb, 3/8" Hose Barbs
Price: $21.52
 Discontinued
Save: $13.27
(38% Off $34.79)
Part # 18-8005EP-1
No Reviews
Write Review  |  Ask Question
(Discontinued)
Primer Bulb, 3/8
View Larger Photo
Sierra 18-8005-10EP-1 Primer Bulb, 3/8" Hose Barbs - 10-Pack
Price: $223.98
Save: $123.21
(35% Off $347.19)
Part # 18-8005-10EP-1
No Reviews
Write Review  |  Ask Question
Primer Bulb, 5/16
View Larger Photo
Sierra 18-8004-10EP-1 Primer Bulb, 5/16" Hose Barbs - 10-Pack
Price: $223.99
Save: $123.20
(35% Off $347.19)
Part # 18-8004-10EP-1
No Reviews
Write Review  |  Ask Question
Mallory 9-38100 Primer Bulb - Carb 5/16"
Price: $19.94
 Discontinued
Save: $2.54
(11% Off $22.48)
Part # 9-38100
No Reviews
Write Review  |  Ask Question
(Discontinued)
Sierra
Description Customer Reviews Customer Questions & Answers Shipping
Alcohol resistant, large capacity. Standard replacement for most OEM bulbs.
Average Customer Review for Sierra 18-8004EP-1 Primer Bulb, 5/16" Hose Barbs
Full StarFull StarFull StarFull StarFull Star
Based On 5 Reviews | Write Review
Full StarFull StarFull StarFull StarFull Star
well pleased
by Edward from Rome, Georgia on October 30, 2017
well pleased
(0 of 1 people found this review helpful)
Was this review helpful?
Full StarFull StarFull StarFull StarFull Star
top of the line
by Nicholas from Bristol, Tennessee on July 25, 2014
this bulb is 100% better than the one I bought at the local boat store buy oem you can tell the difference.
(1 of 1 people found this review helpful)
Was this review helpful?
Full StarFull StarFull StarFull StarFull Star
primer bulb
by Larry from Moultrie, Georgia on June 17, 2014
The primer bulb is perfect for my application. Well pleased.
(1 of 1 people found this review helpful)
Was this review helpful?
Full StarFull StarFull StarFull StarFull Star
Great
by Louis from White Haven, Pennsylvania on August 18, 2012
Best prices on the web! Good product, and great customer service.
(2 of 4 people found this review helpful)
Was this review helpful?
Full StarFull StarFull StarFull StarFull Star
primer bulb
by Richard from Auburn Hills, Michigan on April 27, 2012
Fast delivery
(7 of 14 people found this review helpful)
Was this review helpful?
Average Customer Review for Sierra 18-8002EP-1 Primer Bulb, 1/4" Hose Barbs
Full StarFull StarFull StarFull StarFull Star
Based On 2 Reviews | Write Review
Full StarFull StarFull StarFull StarFull Star
Quality Product
by Mark from Bonne Terre, Missouri on August 30, 2015
Well-made product, should last a long time. Using it on my Z-turn lawnmower.This is replacing an inferior product purchased elsewhere.
Was this review helpful?
Full StarFull StarFull StarFull StarFull Star
Primer Bulb, 1/4" - Sierra
by Gilbert from Hope, Arkansas on August 30, 2013
Used to prime Miller Bobcat welder. Works great.
(1 of 1 people found this review helpful)
Was this review helpful?
Q:
Mine has 3/8 on one side 5/16 on the other,suggestions?
A:
We do not have a primer bulb that you can mix and match sizes on either side like that. You will need to check locally for that.

Answer Question

Q:
Will this fit Mercury 500 50HP Thunderbolt 1974 motor, S/N 3821781?
A:
The primer bulb is universal. It will depend on your hose size if this will work with your set up.

Answer Question

Q:
What size fuel line on a 1989 Force 85?
A:
We would need to know engine model number in order to confirm. Contact us at the number at the top of the page with that info and we can look into it.

Answer Question

Q:
Will this fit 2010 Mercury optimax 90?
A:
We will need serial number in order to match up primer bulb for your motor as we need to cross reference OEM number.

Answer Question

Ask a question
Question & Answer Guidelines
This product ships in 1 business day.
Add to Cart and enter your Postal Code to determine the shipping charges.
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