OEM & Cross Reference Numbers

Sierra 8050 cross references the following marine part numbers:

What This Bleed Hose is Used For

Sierra 8050 is used in compatible marine engine applications requiring 1/16" ID bleed hose.

Depending on the engine, small bleed lines can be used within fuel, lubrication, induction or crankcase-routing systems. Their exact function depends on the engine design and hose location.

Always verify the original hose diameter and applicable OEM number before replacing an existing line.

Marine Bleed Hose Size Guide

Other Bleed Hose Options

Sierra 3/32" Bleed Hose - 8048

Universal Sierra 3/32" ID bleed hose supplied in a 10-foot roll. Cross references Mercury 892024122 and related bleed-hose numbers.

View 3/32" Bleed Hose

1/8" Tygon Bleed Hose - 259

Transparent 1/8" Tygon bleed hose supplied in a 10-foot length for compatible marine and PWC bleed-line applications.

View 1/8" Tygon Bleed Hose

Sierra Bleed Hose vs. Tygon Bleed Hose

The Sierra 8050 and 8048 products are universal replacement marine bleed hoses with OEM cross-reference numbers, while item 259 is transparent Tygon tubing listed as a 1/8" bleed hose.

These hoses should not be selected by appearance alone. Verify the required inside diameter, original hose construction and OEM reference before installation.

Clamp Tools and Shop Assortment

Pro Marine also stocks Oetiker tools and clamp assortments for marine fuel, oil and hose applications that use Oetiker ear clamps.

Oetiker Standard Jaw Pincer - 14118CJ

Standard-jaw pincer for properly closing compatible Oetiker ear clamps used throughout marine fuel and hose systems.

View Oetiker Pincer Tool

Oetiker Clamp Pack with Tool - CLAMP-PACK

Complete assortment of commonly used Oetiker clamp sizes with the installation tool included for marine shops and technicians.

View Oetiker Clamp Pack

When Should Bleed Hose Be Replaced?

Small bleed lines should be inspected during routine engine service, particularly when working on the surrounding fuel, oil or induction system.

Replace bleed hose if you find:

• Cracking or splitting
• Hardening or brittleness
• Fluid leakage
• A loose fit on the hose fitting
• Abrasion or routing damage
• Deterioration caused by age, heat or fluid exposure

Key Features and Benefits

• 1/16" inside diameter
• 10-foot roll
• Sierra aftermarket marine bleed hose
• Universal marine application
• Manufacturer item number 9938779
• Multiple OEM and cross-reference numbers
• 3/32" Sierra bleed hose also available
• 1/8" transparent Tygon bleed hose also available
• Oetiker pincer and clamp assortment available for compatible applications

Need Help Choosing the Right Hose?

Marine bleed, fuel and oil lines may look similar but can have different inside diameters, construction and applications. Always match the hose to the engine requirement.

Visit the Pro Marine Fuel Line Technical Center

FAQ

What size is Sierra 8050?
Sierra 8050 has a 1/16" inside diameter.

How much hose is included?
Sierra 8050 is supplied as a 10-foot roll.

What is the manufacturer item number?
The Sierra manufacturer item number is 9938779.

What numbers does 8050 replace?
Cross references include 54935, 5493576, 5493579, 54936, 55295, 55301, 60079 and 9938779.

Is this a universal bleed hose?
Yes. Pro Marine lists Sierra 8050 as a universal marine bleed hose. Verify that your application requires 1/16" ID hose before installation.

Do you stock a larger Sierra bleed hose?
Yes. Pro Marine stocks Sierra 8048 3/32" ID bleed hose .

Do you stock 1/8" bleed hose?
Yes. Pro Marine stocks item 259 1/8" Tygon bleed hose .

Should I replace 1/16" bleed hose with 3/32" hose?
No. Use the hose diameter specified for the engine and fitting. The two sizes are not automatically interchangeable.

Searchable Part Numbers

8050, Sierra 8050, 9938779, 54935, 5493576, 5493579, 54936, 55295, 55301, 60079, 1/16 bleed hose, Sierra bleed hose, marine bleed hose, marine bleed line, universal bleed hose, 1/16 marine hose, engine bleed hose

OEM and Cross Reference Numbers

Sierra 8048 / manufacturer number 892024122 cross references the following marine part numbers:

What This Bleed Hose is Used For

Small-diameter bleed hose is used in compatible marine engine systems to connect bleed fittings and route fluid between engine components.

The exact location and function depend on the engine. On many marine engines, bleed-line circuits are part of the engine's fuel, lubrication or crankcase routing system.

Because the same hose diameter can be used in different locations, always verify the original hose size and OEM part number before installation.

Marine Bleed Hose Size Guide

Other Bleed Hose Options

Sierra 1/16" Bleed Hose - 8050

Universal Sierra 1/16" ID bleed hose supplied in a 10-foot roll for compatible marine engine bleed-line applications.

View 1/16" Bleed Hose

1/8" Tygon Bleed Hose - 259

Transparent 1/8" Tygon bleed hose supplied in a 10-foot length for compatible bleed-line applications.

View 1/8" Tygon Bleed Hose

3/32" Sierra Bleed Hose vs. 3/32" Tygon Hose

Pro Marine also stocks item 255 3/32" Tygon hose , but the two products should not automatically be treated as interchangeable.

8048 is the Sierra universal bleed hose that cross references Mercury 892024122 and the listed OEM numbers, while 255 is transparent Tygon tubing primarily listed for small PWC oil-injection applications.

Even though both have a 3/32" inside diameter, select hose based on the intended application and OEM requirement rather than size alone.

Clamp Tools and Shop Assortment

Pro Marine also stocks Oetiker tools and clamp assortments for other marine fuel, oil and hose applications that use Oetiker ear clamps.

Oetiker Standard Jaw Pincer - 14118CJ

Standard-jaw pincer for properly closing compatible Oetiker ear clamps used throughout marine fuel and hose systems.

View Oetiker Pincer Tool

Oetiker Clamp Pack with Tool - CLAMP-PACK

Complete assortment of common Oetiker clamp sizes with the installation tool included for marine shops and technicians.

View Oetiker Clamp Pack

When Should Bleed Hose Be Replaced?

Small bleed lines should be inspected whenever the surrounding fuel, induction or lubrication system is serviced.

Replacement should be considered when the hose shows:

• Cracking or splitting
• Hardening or brittleness
• Fluid leakage
• Loose fit at the connection
• Abrasion or routing damage
• Visible deterioration from age or heat

Key Features and Benefits

• 3/32" inside diameter
• 10-foot roll
• Sierra marine replacement bleed hose
• Universal marine application
• Manufacturer item number 892024122
• Cross references numerous Mercury 99130-series bleed-hose numbers
• 1/16" Sierra bleed hose also available
• 1/8" transparent Tygon bleed hose also available
• Oetiker pincer and complete clamp assortment available for compatible applications

Need Help Choosing the Right Hose?

Marine bleed, fuel and oil hoses may look similar but can serve very different purposes. Match the inside diameter, hose construction and OEM requirement to the application being serviced.

Visit the Pro Marine Fuel Line Technical Center

FAQ

What size is Sierra 8048?
Sierra 8048 has a 3/32" inside diameter.

How much hose is included?
The package contains a 10-foot roll.

What is the Sierra manufacturer number?
The manufacturer item number is 892024122.

Does 8048 replace Mercury 892024122?
Yes. 892024122 is one of the primary cross-reference numbers for Sierra 8048.

Is this a universal bleed hose?
Yes. Pro Marine lists Sierra 8048 as a universal marine bleed hose. Verify the required 3/32" inside diameter and OEM reference for your specific installation.

Is this the same as the 3/32" Tygon hose?
Not necessarily. Both have a 3/32" inside diameter, but item 8048 is a Sierra replacement bleed hose with Mercury cross references, while item 255 is transparent Tygon tubing primarily listed for small oil-injection applications.

Do you stock a smaller bleed hose?
Yes. Pro Marine stocks Sierra 8050 1/16" ID bleed hose .

Do you stock a larger bleed hose?
Yes. Pro Marine stocks 1/8" Tygon bleed hose .

Searchable Part Numbers and Terms

8048, Sierra 8048, 892024122, F9913046, 60580, 6058078, 60584, 99130, 99130122, 9913015, 9913019, 9913022, 9913028, 9913030, 9913033, 9913045, 9913046, 9913064, 9913065, 9913069, 9913072, 9913076, 9913078, 3/32 bleed hose, Mercury bleed hose, Sierra bleed hose, marine bleed line, 3/32 marine hose, universal bleed hose, Mercury 892024122

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 and releasing the bulb draws fuel from the tank and pushes it toward the engine. Internal one-way check valves help keep fuel moving in the proper direction.

Primer bulbs are commonly used when:

• Starting an outboard after the fuel line has drained
• Priming a newly installed fuel line
• Refilling the line after fuel-system service
• Purging air from the fuel hose
• Replacing an old, hardened or damaged primer bulb

Compatible 5/16" Fuel Hose Options

Pro Marine stocks three common 5/16" fuel-hose options that can be used with this primer bulb. The correct hose depends on the installation and required fuel-hose classification.

MPI 5/16" Type B Fuel Hose - 315-056

5/16" Type B marine fuel hose commonly used in exposed and above-deck applications where Type B hose is appropriate.

Inside Diameter: 5/16"
Sold: By the Foot
Matching Clamp: Oetiker 4-153

View 5/16" Type B Fuel Hose

MPI 5/16" Type A Fuel Hose - 313-1

Type A marine fuel hose for installations requiring the additional Type A fire-resistant classification.

Inside Diameter: 5/16"
Sold: By the Foot
Matching Clamp: Oetiker 4-170

View 5/16" Type A Fuel Hose

Mercury OEM 5/16" Silver Fuel Hose

Genuine Mercury Marine bulk 5/16" fuel hose for compatible Mercury outboard fuel-line applications.

Inside Diameter: 5/16"
Sold: By the Foot
Matching Clamp: Oetiker 4-145

View Mercury OEM Fuel Hose

Correct Clamp for Each 5/16" Fuel Hose

All three hoses have a 5/16" inside diameter, but they do not have the same outside diameter. Different constructions and wall thicknesses require different Oetiker clamp sizes.

Fuel Line Clamps and Installation Tools

Oetiker 4-153 Ear Clamp - 10 Pack

Correct clamp for the MPI 315-056 5/16" Type B fuel hose.

View Oetiker 4-153 Clamp

Oetiker 4-170 Ear Clamp - 10 Pack

Correct clamp for the MPI 313-1 5/16" Type A fuel hose.

View Oetiker 4-170 Clamp

Oetiker 4-145 Ear Clamp - 10 Pack

Correct clamp for the Mercury OEM 5/16" silver fuel hose.

View Oetiker 4-145 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

Assortment of common Oetiker clamp sizes with the installation tool included. A convenient option for marine shops and technicians working with multiple hose sizes.

View Oetiker Clamp Pack

How a Primer Bulb Works

The primer bulb contains internal one-way check valves. When the bulb is squeezed and released, the valves allow fuel to move in one direction through the hose.

Repeatedly squeezing the bulb draws fuel from the fuel tank, fills the fuel line and supplies fuel toward the engine.

Primer Bulb Installation

Install the primer bulb with the fuel-flow arrow pointing toward the engine.

Secure each hose connection using the correct clamp for the specific fuel hose being installed.

When Should a Primer Bulb Be Replaced?

Primer bulbs are continually exposed to fuel, heat and the marine environment and can deteriorate over time.

Inspect or replace the primer bulb if you notice:

• Cracking or visible deterioration
• A bulb that has become excessively hard
• A bulb that stays collapsed
• A bulb that will not become firm when priming
• Fuel leaking around the bulb or hose connections
• Air entering the fuel system
• Internal check-valve problems

Building a Complete 5/16" Outboard Fuel Line

Depending on the installation, a complete 5/16" fuel-line assembly may require:

• Pro Marine 8004 5/16" primer bulb
• 5/16" Type A, Type B or Mercury OEM fuel hose
• Correct tank-side connector or fitting
• Correct engine-side connector or fitting
• Correct Oetiker clamps for the selected hose
• Oetiker pincer installation tool

Type A, Type B or Mercury OEM Fuel Hose?

The Pro Marine 8004 primer bulb fits all three listed hose options because each hose has a 5/16" inside diameter.

The difference is in the hose construction and intended installation.

MPI Type B 315-056 is commonly used in exposed and above-deck applications where Type B hose is permitted.

MPI Type A 313-1 is used where the installation requires the additional Type A fire-resistant classification.

Mercury OEM #100 is the genuine Mercury 5/16" silver fuel-hose option for compatible Mercury fuel-line applications.

Key Features

• Pro Marine 8004 marine fuel primer bulb
• Designed for 5/16" ID fuel hose
• Compatible with MPI 315-056 Type B hose
• Compatible with MPI 313-1 Type A hose
• Compatible with Mercury OEM #100 5/16" silver hose
• Used to manually prime outboard fuel systems
• Helps draw fuel from the tank toward the engine
• Matching Oetiker clamps available for each hose
• Oetiker pincer installation tool available
• Complete Oetiker clamp assortment with tool available

Need Help Building Your Marine Fuel Line?

Hose size, fuel-hose 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 8004 primer bulb fit?
The 8004 is designed for 5/16" ID fuel hose.

Can I use this primer bulb with MPI Type B hose?
Yes. It fits the MPI 315-056 5/16" Type B fuel hose .

Can I use it with Type A hose?
Yes. It also fits the MPI 313-1 5/16" Type A fuel hose .

Can I use it with Mercury OEM 5/16" silver fuel hose?
Yes. The Mercury OEM #100 5/16" silver hose also has a 5/16" inside diameter.

Which clamp fits MPI 315-056 Type B hose?
Use the Oetiker 4-153 ear clamp .

Which clamp fits MPI 313-1 Type A hose?
Use the Oetiker 4-170 ear clamp .

Which clamp fits the Mercury OEM 5/16" hose?
Use the Oetiker 4-145 ear clamp .

Why do all three 5/16" hoses use different clamps?
The 5/16" measurement refers to the inside diameter. Each hose has a different construction and outside diameter, so each requires the correct clamp matched to that hose.

Which direction should the primer bulb be installed?
Install it 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 the installation tool.

Searchable Part Numbers & Terms

8004, Pro Marine 8004, 5/16 primer bulb, 5/16 marine primer bulb, outboard primer bulb, boat fuel primer bulb, marine fuel bulb, outboard fuel bulb, 5/16 fuel line, 5/16 outboard fuel hose, 315-056, MPI 315-056, 5/16 Type B fuel hose, 313-1, MPI 313-1, 5/16 Type A fuel hose, Mercury fuel hose 100, Mercury 5/16 silver fuel hose, Oetiker 4-153, Oetiker 4-170, Oetiker 4-145, marine fuel line clamp, Oetiker fuel line clamp, primer bulb fuel line, marine fuel system, outboard fuel line