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Pro Marine 1/4" Primer Bulb - 8002
Universal
| Quantity | Price |
| 1 | 40.89 |
Pro Marine 1/4" Outboard Fuel Primer Bulb
Pro Marine 8002 1/4" Marine Fuel Primer Bulb
The Pro Marine 8002 Primer Bulb is designed for marine fuel-line systems using 1/4" inside-diameter fuel hose. It can be used when building or repairing custom outboard fuel-line assemblies using compatible Type A or Type B marine fuel hose.
Primer bulbs allow the operator to manually draw fuel through the fuel line and toward the engine before starting. This helps fill an empty fuel line, purge air from the system and supply fuel to the engine during initial startup.
Pro Marine stocks both 1/4" Type A and Type B bulk marine fuel hose, the correct Oetiker clamp for each hose, and the tools required to properly install the clamps.
Primer Bulb: Pro Marine 8002
Hose Size: 1/4" ID
Application: Marine / Outboard Fuel Line
Type B Hose: MPI 315-014
Type A Hose: MPI 314-1
What This Primer Bulb is Used For
A primer bulb is installed inline in an outboard fuel hose and acts as a manual fuel pump.
Squeezing the bulb draws fuel from the fuel tank and pushes it toward the engine. Internal check valves help direct fuel flow in the correct direction.
Primer bulbs are commonly used when:
- Starting an outboard after the fuel line has drained
- Priming a new fuel-line installation
- Refilling the line after fuel-system service
- Purging air from the fuel line
- Replacing an old, hardened or damaged primer bulb
Compatible Fuel Hose
Pro Marine stocks both Type A and Type B 1/4" marine fuel hose for use with this primer bulb.
MPI 1/4" Type B Marine Fuel Hose - 315-014
Bulk 1/4" marine fuel hose for exposed and above-deck applications where Type B hose is appropriate.
Inside Diameter: 1/4"
Sold: By the Foot
Matching Clamp: Oetiker 4-133
MPI 1/4" Type A Marine Fuel Hose - 314-1
Bulk Type A marine fuel hose for installations requiring the additional Type A fire-resistant classification.
Inside Diameter: 1/4"
Sold: By the Foot
Matching Clamp: Oetiker 4-170
Correct Clamp for Each 1/4" Fuel Hose
Both hoses use a 1/4" inside diameter, but their outside diameters are different because of their construction and wall thickness. This means they require different Oetiker clamps.
| Fuel Hose | Hose Type | Correct Clamp | Primer Bulb |
|---|---|---|---|
| MPI 315-014 | Type B | Oetiker 4-133 | Pro Marine 8002 |
| MPI 314-1 | Type A | Oetiker 4-170 | Pro Marine 8002 |
Do not select the clamp based only on the hose's 1/4" inside diameter.
The Type B and Type A hoses have different outside diameters and therefore require different clamps.
Type B 315-014 = Oetiker 4-133
Type A 314-1 = Oetiker 4-170
Fuel Line Clamps and Installation Tools
Oetiker 4-133 Ear Clamp - 10 Pack
Correct clamp for the MPI 315-014 1/4" Type B fuel hose.
View Oetiker 4-133 Clamp
Oetiker 4-170 Ear Clamp - 10 Pack
Correct clamp for the MPI 314-1 1/4" Type A fuel hose.
View Oetiker 4-170 Clamp
Oetiker Standard Jaw Pincer Tool
Installation tool for properly closing Oetiker ear clamps when assembling marine fuel-line connections.
View Oetiker Pincer Tool
Oetiker Clamp Pack with Tool
A complete assortment of commonly used Oetiker clamp sizes with the installation tool included.
A convenient option for marine shops, technicians or anyone servicing multiple fuel-hose sizes.
View Oetiker Clamp PackHow a Primer Bulb Works
The primer bulb contains internal one-way check valves. When the bulb is squeezed and released, these valves allow fuel to move in one direction through the fuel line.
Repeatedly squeezing the bulb draws fuel from the tank, fills the line and supplies fuel toward the engine.
Primer Bulb Installation
Install the primer bulb with the fuel-flow arrow pointing toward the engine.
A typical fuel path is:
Secure each hose connection using the clamp matched to the specific fuel hose being installed.
When Should a Primer Bulb Be Replaced?
Primer bulbs are exposed to fuel, heat and the marine environment and can deteriorate over time.
Inspect or replace the primer bulb if you notice:
- Cracking or surface deterioration
- A bulb that has become excessively hard
- A bulb that stays collapsed
- A bulb that will not become firm when priming
- Fuel leakage around the bulb or fittings
- Air entering the fuel line
- Internal check-valve problems
Building a Complete 1/4" Outboard Fuel Line
Depending on your installation, a complete 1/4" fuel-line assembly may require:
- Pro Marine 8002 1/4" primer bulb
- 1/4" Type A or Type B marine fuel hose
- Correct engine-side connector or fitting
- Correct tank-side connector or fitting
- Correct Oetiker clamps for the selected hose
- Oetiker pincer tool
Type A or Type B Fuel Hose?
The primer bulb works with either of the 1/4" hose options because both have the same 1/4" inside diameter.
The correct hose classification depends on the fuel-system installation.
Type B is commonly used in exposed and above-deck installations where Type B hose is permitted.
Type A is used where the installation requires the additional Type A fire-resistant classification, including many enclosed and below-deck fuel-system applications.
Key Features
- Pro Marine 8002 marine primer bulb
- Designed for 1/4" ID marine fuel hose
- Compatible with MPI 315-014 Type B fuel hose
- Compatible with MPI 314-1 Type A fuel hose
- Used to manually prime outboard fuel systems
- Helps draw fuel from the tank toward the engine
- Type B Oetiker 4-133 clamps available
- Type A Oetiker 4-170 clamps available
- Oetiker installation pincer available
- Complete Oetiker clamp assortment with tool available
Need Help Building Your Marine Fuel Line?
Hose size, Type A or Type B classification, primer bulb size and clamp selection all need to match the fuel-system installation.
Visit the Pro Marine Fuel Line Technical Center
FAQ
What size hose does the Pro Marine 8002 primer bulb fit?
The 8002 is designed for 1/4" ID fuel hose.
Can I use this primer bulb with Type A fuel hose?
Yes. It can be used with the
MPI 314-1 1/4" Type A hose
.
Can I use it with Type B fuel hose?
Yes. It also fits the
MPI 315-014 1/4" Type B hose
.
Which clamp fits the 1/4" Type B hose?
Use the
Oetiker 4-133 ear clamp
.
Which clamp fits the 1/4" Type A hose?
Use the
Oetiker 4-170 ear clamp
.
Why do the Type A and Type B hoses use different clamps?
Both hoses have a 1/4" inside diameter, but their outside diameters differ
because of their construction and wall thickness. Clamp size must match
the outside diameter of the specific hose.
Which direction should the primer bulb be installed?
Install the primer bulb with the fuel-flow arrow pointing
toward the engine.
What tool is used to install Oetiker clamps?
Use the
Oetiker Standard Jaw Pincer Tool
.
Do you sell a clamp assortment?
Yes. The
Oetiker Clamp Pack with Tool
includes common clamp sizes and an installation tool.
Dealer Discounts & Store Policies
Dealer / Marine Industry Discounts
Are you a marine dealer, technician, boat builder, or industry professional? We offer dealer pricing for qualified marine businesses.
Shipping Policy
- Free shipping on orders over $100 in the continental U.S.
- Orders received before 5:30 PM EST ship the same business day.
- Typical delivery time is 1-5 business days.
30-Day Return Policy
- Returns accepted within 30 days of delivery.
- Parts must be new, unused and in original packaging.
- Installed parts are not returnable.
- Return authorization is required before sending items back.
Need help choosing the correct fuel-line parts?
Contact Pro Marine
Phone: 941-721-3000
Searchable Part Numbers & Terms
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