JEGS
Black Electric Water Pump 35 GPM Small Block Chevy
555-50931
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Small Block Chevy
JEGS 555-50931 Electric Water Pump Features:
- Fits small block Chevy engines such as 283, 307, 327, 350, 383 (stroker), 400, and others based on the popular platform
- Designed to keep your vehicle’s engine cool after a mechanical pump gives up
- Black powder coated for corrosion resistance and long life
- Specifications: 35 gallons per minute, 6 amps
- Simple installation
Note: Requires the smaller 6 3/4 in. balancer, will NOT have clearance for an 8 in. balancer
FAQ
Are big block Chevy and small block Chevy water pumps the same?
- No, big block Chevy and small block Chevy water pumps differ in size and design to fit their respective engines. They are not interchangeable.
What is the difference between a short and long water pump on a small block Chevy?
- The main difference is length; a short water pump is more compact while a long water pump is larger, affecting accessory placement.
Are electric water pumps better than mechanical?
- Electric water pumps offer benefits like precise control, reduced horsepower drag, and better cooling, but suitability depends on the application.
How long should an electric water pump last?
- The lifespan of an electric water pump varies based on usage and maintenance, but quality pumps can typically last several years under normal conditions.
Specifications:
Part Type
Product Line
Engine Make/Size
Chevy Small Block (262-400)
Finish
Black Anodized
Flow Rate @ 12 Volts (gpm)
35 GPM
Material
Aluminum
Package Depth
7.50
Package Height
11.80
Package Width
6.70
Part Category
Performance Parts
Part Fitment
Semi Universal
Pilot Diameter
N/A
Pump Flow
N/A
Quantity
Sold individually
Shipping Weight
7.00
Style
Street/High-Performance
Type
Electric
Water Pump Rotation
N/A
50931 - JEGS Electric Water Pumps is rated
out of
5 by
12.
Rated 4 out of
5
by
Lefty from
Does what it needs to do
Solid pump at a solid price that does what it's supposed to do. Straight forward install coupled with the Jegs relay kit. As the description states and others have said, you'll run into clearance issues with a 8" balancer. The pump and the coolant intake will clear the balancer, but the coolant intake is close enough to cause to hose to rub against the balancer (This is based on a Gen 1 SBC out of a k5) I remedied this by installing a 45* NPT elbow between the pump body and the coolant intake piece. Works like a charm in my application
Date published: 2023-08-15
Rated 4 out of
5
by
400s10guy from
misleading
will not work on a 400 sbc. a 400 harmonic balancer has a bigger diameter and hits the bell on the pump
Date published: 2018-04-21
Rated 3 out of
5
by
Brad420 from
Decent
Only problem I ran into is that it dang near hits the harmonic balancer so might give to rig something up or go a different route
Date published: 2020-03-19
Rated 3 out of
5
by
Petri from
Not compatible with an 8-inch damper
The fitting on the pump does not fit with an 8-inch damper, because there is no room for the lower radiator hose. I think this should be mentioned in the product description.
Date published: 2019-11-21
Rated 1 out of
5
by
66Rich from
Not the dimensions that were published
I bought this particular water pump because it specified a 6.7” depth. I have only a 1/4” clearance at that dimension to clear my electric fan.
I unfortunately did not measure the unit before installing on the engine. I trusted it would be “as specified”….
The water pump is 7.5” deep… not 6.7”
I spent a bunch of money this morning buying tools and material to modify the shroud for the fan to mount it. Go to put it in and there is no way it’ll fit.
I can’t return the pump because I’ve installed it.
The fan is a $400 fan that I now cannot use because the water pump hits it.
Yes I should have verified, but now I’m out a lot of time and money because JEGS published incorrect dimensions.
Not a happy camper right now.
Date published: 2023-12-30
Rated 1 out of
5
by
JFuller from
It would probably work great if it would fit.
I purchased this item along with the ITC Billet Alternator Bracket For Electronic Water Pump, part number 335-551672E. This is to be mounted on a gen1 SBC 350 (bored .050 stroked to 383 with Eagle Rotation Assembly purchased from Jegs) originally from a 1970 Chevelle.
Immediately there are issues with the fit-up of this product to the block. The machining of the mounting bolt holes to the block appears to be 'close' to where they need to be. The driver side fits correctly, however the passenger side holes are further apart than the holes on the block. This does not allow the bolts to line up correctly.
Next, this pump uses 3/8 SHCS (socket head cap screws) on the pump body. When I tried to install the alternator bracket, the SHCS's on the alternator side of the pump make contact with the bolt spacers and do not allow the bracket to mount as they are intended.
Once those were changed to hex head bolts and I was able to get everything in the right spot after machining the bolt holes slightly larger, the water pump inlet fitting sticks too far out of the water pump and makes contact with the harmonic balancer. Initially, I tried to screw the tube further into the pump to make up the clearance as it was close to fitting however the threads are not deep enough to generate enough clearance to the balancer.
Thankfully, the pump is very versatile, and can be flipped upside down and the tube can be moved to either upper/lower driver side, or upper/lower passenger side. Or so I thought...
When I backed the aluminum inlet pipe out of the pump, the threads stripped on the pipe destroying it.
I am not sure the last time I worked under the hood and cussed an aftermarket part as much as this one. Maybe this one is a fluke, and I am willing to let Jegs try to send me another one to see if this one works, but this one was a NO GO.
Jegs, please answer the frickin' phone, you are losing a life-long customer.
Date published: 2020-09-09
Will this work on a chevy 350 with a aluminum timing chain cover with a 671 blower
The Jegs 555-50931 should have sufficient clearance for an aluminum cover.
Date published: 2022-08-08
Is this a brushless type motor?
No, this is not a brushless electric motor.
Date published: 2018-11-06
Will it fit an 02 LS1?
No, this is made to fit the GEN I Chevy small block - this will fit the LS series engines - https://www.jegs.com/i/JEGS-Performance-Products/555/50917/10002/-1
Date published: 2018-04-26
Is the hose outlet included?
The inlet tube is included with this pump.
Date published: 2018-04-18
Will this fit 1996 trans am lt1
No, unfortunately that will not fit the LT1 engine
Date published: 2018-05-14
Will this work on the 262 V6?
This will bolt to the 262 V6 engine.
Date published: 2023-08-13
Will it work on 73 sbc motor ?
This will bolt up to the '73 small block Chevy.
Date published: 2018-01-04
Will this work on a 5.3
No , it will not work on a 5.3L LS engine
Date published: 2018-06-26
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Some parts are not legal for use in California or other states with similar laws / regulations
Motor Vehicles
WARNING: Motor vehicles contain fuel, oils and fluids, battery posts, terminals and related accessories which contain lead and lead compounds and other chemicals known to the State of California to cause cancer, birth defects and other reproductive harm. These chemicals are found in vehicles, vehicle parts and accessories, both new and as replacements. When being serviced, these vehicles generate used oil, waste fluids, grease, fumes and particulates, all known to the State of California to cause cancer, birth defects, and reproductive harm.
Tools:
WARNING: Some dust created by power sanding, sawing, grinding, drilling, and other construction activities contains chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. Some examples of these chemicals are: lead from lead-based paints, crystalline silica from bricks and cement and other masonry products, and arsenic and chromium from chemically treated lumber. Your risk from exposure to these chemicals varies, depending on how often you do this type of work. To reduce your exposure, work in a well-ventilated area and with approved safety equipment, such as dust masks that are specially designed to filter out microscopic particles.
Electrical Cords
WARNING: The wires of these products contain chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. Wash hands after handling.