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Primer Bulb

Part Number: 694394
Briggs and StrattonToro
Availability: Special Order [ more info ]
Price: $4.18
Leaves our warehouse within
4 - 7 business days

*This part replaces obsolete part #: 691347 and 494408.

Product Information
Manufacturer: Briggs and Stratton, Toro
Product Number: 694394
Classification: Part
Weight: 0.01 lbs.
Shipping: Ships Worldwide
Description:
Genuine OEM replacement primer bulb for engines with a pulsa prime carburetor. This part is sold individually. It includes the Rubber Bulb and the Plastic Collar to attach it. A primer sends gas into the carburetor so it can create a fuel and air mixture that is ready to go right into the cylinder and keep the engine running. Over time a primer bulb can dry out and crack. If the bulb is damaged it will not create suction and will not function as needed, therefore it will need to be replaced.
Frequently Purchased With
Compatibility

This part is compatible with the following machines:

Briggs and Stratton
Toro
Expand the 150+ compatible machines
Products Compatibility

This item works with the following types of products:

  • • Engine
  • • Lawn Mower
Questions & Answers

No questions have been asked yet
Repair Instructions: Submitted by Customers Like You
18 of 20 people found this instruction helpful
Tool Type:
Lawn Mower
Parts Used:
Primer Bulb - 694394
Air Filter Foam - 698369
Repair Difficulty:
Hard
Time Spent Repairing:
15-30 minutes
Tools Used:
Screwdriver, Pliers, Pliers that have tips bent in
Dirty air filter and worn out Primer Bulb
For air filter unscrew lid of housing and remove old filter. Put in new filter and replace lid. replace screw and tighten.
To remove old primer bulb use pliers that have tips bent in. Put bent in tips in bulb housing cuts (vertical) that show white on the housing closer to the carburetor and squeeze in with gentle pulling pressure. The bulb and retainer (white nylon) should be able to be worked out of the housing. Put the new retainer on the new bulb and push into the housing using a flat screwdriver making sure the flaps on the retainer line up with the cuts in the housing. Rotate the screwdriver around the retainer gently pushing each time until the retainer flaps engage the housing cuts.
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6 of 7 people found this instruction helpful
Tool Type:
Lawn Mower
Parts Used:
Primer Bulb - 694394
Exhaust Muffler S/A 39 - 394569S
Air Filter Foam - 698369
Repair Difficulty:
Easy
Time Spent Repairing:
Less than 15 minutes
Tools Used:
Screwdriver, Pliers, Socket set, Adjustable Wrench, WD40
Black smoke, broken primer bulb.
Add WD40 to all screws to be removed. Unscrew old muffler, clean area and screw the new muffler in. Clean filter case, add new filter. Remove old primer bulb, clean area with rag and WD40 and you will be able too see the old retainer. Remove old retainer by using a flat head screw driver in the outside holes. Insert towards the back of the hole and pry old retainer out. Insert new bulb and new retainer.
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4 of 5 people found this instruction helpful
Tool Type:
Engine
Parts Used:
Primer Bulb - 694394
Repair Difficulty:
Medium
Time Spent Repairing:
15-30 minutes
Tools Used:
Screwdriver, Pliers
primer bulb had melted during prolonged storage
1. Removed old primer bulb
2. Retainer clip/ring impossible to remove from engine without destroying it
3. Replaced new primer bulb
4. New clip/ring very difficult to insert
5. Several tries with screwdriver which could have easily punctured primer bulb
6. Finally clicked into place
7. Primer works well & engine starts
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1 of 1 people found this instruction helpful
Tool Type:
Lawn Mower
Parts Used:
Primer Bulb - 694394
Repair Difficulty:
Easy
Time Spent Repairing:
Less than 15 minutes
Tools Used:
Pliers, Socket set
Had a hole in it
Squeezed the clips holding it In remove it, replaced it with a new one
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1 of 1 people found this instruction helpful
Tool Type:
Engine
Parts Used:
Primer Bulb - 694394
Repair Difficulty:
Easy
Time Spent Repairing:
Less than 15 minutes
Tools Used:
Screwdriver, small screwdriver
Primer
Took off old... put on new....
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Abandoned mower, missing a wheel, sitting at the curb waiting to go to the junk yard
I wanted a project. The previous owner said i could have it and it may need a starter? It's a pull start.

Step 1 Power wash and engine degreaser.

Step 2 Inspect for oil - it was almost dry. Checked for spark - good. Air filter has never been changed. Primer bulb shot. Got it to start eventually - stable enough.

Step 3 Tore down the engine cover and carburetor enough to figure only that the only service this thing has seen is gasoline. Ordered the above parts.

Step 4 Cleaned out the carburetor and the top end of the engine. Sharpened the blade and made sure the whole mower was structurally sound.

Step 5 Replaced the parts that were ordered including the missing wheel assembly. Changed the oil, fresh gas, Three primes of the primer bulb. the machine came to life on the 1st pull.

I have mowed my grass three times so far, runs great. Selling it to a friend who needs a cheap mower
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Tool Type:
Engine
Parts Used:
Primer Bulb - 694394
Repair Difficulty:
Easy
Time Spent Repairing:
Less than 15 minutes
Tools Used:
Screwdriver, Pliers, Adjustable Wrench, None
Primer bulb had a hole in it
Removed old primer bulb and replaced with the new one
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Tool Type:
Engine
Parts Used:
Primer Bulb - 694394
Repair Difficulty:
Easy
Time Spent Repairing:
Less than 15 minutes
Tools Used:
Screwdriver, small hammer
primer bulb
aligned plastic ring snaps that holds it in to the engine holes and tapped gently into place until it snapped in the holes on the engine with a screw driver and a small hammer.
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Tool Type:
Lawn Mower
Parts Used:
Primer Bulb - 694394
Governed Idle Spring - 691859
Filter-Air Cleaner Foam - 272235S
Repair Difficulty:
Easy
Time Spent Repairing:
30-60 minutes
Tools Used:
Screwdriver, Pliers, Nutdriver
Governor spring broke
Removed old spring replaced with new one
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Tool Type:
Engine
Parts Used:
Primer Bulb - 694394
Repair Difficulty:
Easy
Time Spent Repairing:
Less than 15 minutes
Tools Used:
Screwdriver
Promer bulb bad
Popped old out with screwdriver on both sides. Pressed new one in with screwdriver. Make sure both sides "click" into place.
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Reviews
4.8
Average Rating (out of 5):
6 Reviews
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  • Exact fit
    Good product fast shipping exact fit works like a charm
    Raymond - November 13, 2021 Verified Purchase
    Perfect fit.
    Perfect fit. The old very old push mower runs like a top. All parts that I have ordered have fit perfectly on my zero turn Toro and also my snapper tiller.
    Guest - October 9, 2021 Verified Purchase
    great part worked as expected, solved the problem.
    direct fit fast delivery mower works like new again. the original bulb was detereated.
    Guest - August 8, 2020 Verified Purchase
    Easy repair
    Part was package neatly and worked as expected
    Guest - March 24, 2020 Verified Purchase
    Primer bulb replacement
    The buld arrived in good condition, and within 3 days of my order. Unfortunately, it seemed hard to put back and I damaged the rubber (a small tear in the rubber, the tool slipped) and it would not develop pressure as needed. I removed the new bulb and replaced it with the old one. Mower works.
    Larry - May 9, 2019 Verified Purchase
    Primer Bulb
    Quick shipment and very easy to install
    lawrence - September 19, 2020 Verified Purchase
    Verified Purchase
    eReplacementParts Team
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    Product Information
    Manufacturer: Briggs and Stratton, Toro
    Product Number: 694394
    Classification: Part
    Weight: 0.01 lbs.
    Shipping: Ships Worldwide
    Repair Guides
    Articles:
    Replacing primer bulbs in small engines is one of the most common types of tool repairs, and this article explains profe...
    June 25, 2010

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