The pump will work on pressure washers that would have a 3/4" shaft diameter and a 8.35 x 8.35 mount bolt base for the engine and is rated for 5.5 GPM and 360 PSI. It has 1/2" inlet and outlet barbs.
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Comet Pumps MC25 Diaphragm Pump — 25ft. Spray Distance, 3/4in. Keyed Shaft, Model# MC25

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Shipping:
Factory shippedStore Pickup:
Not available - online only
- Durable design with all moving parts in a complete oil bath, industrial duty bearings, anti-corrosion diaphragms and valves
- Includes pressure regulator with manual dump lever, two 1/2in. outlet barbs and 1/2in. bypass barb
- 3/4in. shaft dia.
- 8.35in. x 8.35in. mounting base
See full description
Description
Key Specs
Reviews
Q & A
Accessories
Warranty
Compare
Product Summary
What's Included
- (1) Pump (1) Gearbox (1) Pressure regulator
Downloads
Features + Benefits
- Durable design with all moving parts in a complete oil bath, industrial duty bearings, anti-corrosion diaphragms and valves
- Includes pressure regulator with manual dump lever, two 1/2in. outlet barbs and 1/2in. bypass barb
- 3/4in. shaft dia.
- 8.35in. x 8.35in. mounting base
Key Specs
| Attribute | Specification |
|---|---|
item# | 27527 |
Brand | Comet Pumps |
Manufacturer's Warranty | 1 year limited warranty |
Ship Weight | 15.0 LB |
Material | Aluminum |
Max. PSI | 360 |
Max. Flow Rate | 5.5 GPM |
Max. Temperature | 100 °F |
| Attribute | Specification |
|---|---|
Pump Type | Diaphragm |
Inlet Port | 1 |
Outlet Port | 1 |
Self-Priming | Yes |
Seal Type | Buna |
Product Weight | lb |
Dimensions L x W x H (in.) | 10.0 x 10.0 x 10.0 in |
Reviews
Questions & Answers
Questions
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· a month ago
does this pump work on my 55 gallon northstar skid sprayer
1 answer-
ProductExpert6· a month ago
Helpful?
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· 5 months ago
does it come with a new pressure gauge?
1 answer-
ProductExpert11· 5 months ago
The pump will have a pressure gauge located on the side below the regulator.
Helpful?
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· 2 years ago
How high can this model shoot vertically?
1 answer-
ProductExpert23· 2 years ago
The Comet Sprayer Diaphragm Pump (Model# MC25) can shoot vertically up to 25 feet.
Helpful?
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· 2 years ago
Is it a hydraulic pump
1 answer-
ProductExpert6· 2 years ago
The pump is not a hydraulic pump.
Helpful?
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· 2 years ago
Do my Honda engines have to be equipped with a reduction gear box in them or does this pump have it already
1 answer-
ProductExpert6· 2 years ago
The pump would not have a reduction gear box.
Helpful?
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· 2 years ago
Does this pump need a support underneath it or is the four bold holding it to the motor enough support?
1 answer-
ProductExpert6· 2 years ago
The pump will need support underneath of it.
Helpful?
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· 3 years ago
Can this be used for Softwash bleach and soap applications
1 answer-
ProductExpert29· 3 years ago
This pump is not designed for use with bleach or soft wash applications.
Helpful?
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· 5 years ago
is this pump rebuildable? or do I replace it with a new one ? how do I add oil to it?
1 answer-
ProductExpert38· 5 years ago
A rebuild kit is offered for this pump. Please contact our parts dept. for pricing and availability at 800-657-0516. In case the pump requires additional oil, remove the cap and diaphragm to add.
Helpful?
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· 5 years ago
Will this pump work on a honda gx270 engine?
1 answer-
ProductExpert29· 5 years ago
This pump requires a 3/4" diameter, straight keyed shaft. This can be bolted to a GX270 engine as long as the crankshaft specs match.
Helpful?
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· 6 years ago
where can i find parts for this
1 answer-
ProductExpert11· 6 years ago
Parts can be ordered through our parts department at 800-657-0516.
Helpful?
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Warranty
Manufacturer's Warranty
1 year limited warranty
Extend Your Warranty Coverage with a Northern Protection Plan (NPP)
Replacement Plan — 1 Year
A Northern Protection Plan is available after adding the product to your shopping cart.
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Specifications
Aluminum
-
-
Polypropylene
360
60
150
100
5.5 GPM
5.38 GPM
7 GPM
3 GPM
100 °F
120 °F
140 °F
140 °F
Diaphragm
-
-
Diaphragm
1
1/2
3/4
1/2
1
1/2
3/4
1/2
Yes
Yes
-
Yes
Buna
-
Viton
Santoprene
lb
lb
-
6.0000 lb
10.0 x 10.0 x 10.0 in
10.0 x 4.5 x 4.25 in
-
10.0 x 4.0 x 4.5 in
-
12
12
12
-
18
-
10
-
-
2,500
-
-
-
1.43 in
-
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