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Hitachi EC89 4-Gallon Portable Twin Stack Air Compressor

Hitachi EC89 4-Gallon Portable Twin Stack Air Compressor Parts

Page A
 Fig #
1
Screw
 $4.70

Part Number: 881472

Ships In 15 - 21 Business Days

Ships in 15 - 21 business days
 $4.70
2
Intake Filter Housing
 $5.31

Part Number: 881554

In Stock, 3 Available

Ships within 1 business day
 $5.31
3
Filtering Element
 $3.99

Part Number: 881-553

In Stock, 8 Available

Ships within 1 business day
 $3.99
4
Filter Plate
 $6.75

Part Number: 881-453

In Stock, 2 Available

Ships within 1 business day
 $6.75
5
Joint
 $13.09

Part Number: 887053

Ships In 15 - 21 Business Days

Ships in 15 - 21 business days
 $13.09
6
Set Of Gasket
 $5.49

Part Number: 887054

In Stock, 1 Available

Ships within 1 business day
 $5.49
7
Cylinder
 $32.88

Part Number: 887055

Ships In 15 - 21 Business Days

Ships in 15 - 21 business days
 $32.88
8
Piston Ring
 $41.62

Part Number: 881-460

Ships In 15 - 21 Business Days

Ships in 15 - 21 business days
 $41.62
9
Piston Pin
 $3.18

Part Number: 881-462

Ships In 15 - 21 Business Days

Ships in 15 - 21 business days
 $3.18
10
Retaining Ring
 $4.70

Part Number: 881-463

In Stock, 1 Available

Ships within 1 business day
 $4.70
11
Connecting Rod
 $16.10

Part Number: 887-099

In Stock, 4 Available

Ships within 1 business day
 $16.10
12
Screw
 $4.70

Part Number: 881551

Ships In 15 - 21 Business Days

Ships in 15 - 21 business days
 $4.70
13
Head
 $21.52

Part Number: 887057

In Stock, 3 Available

Ships within 1 business day
 $21.52
14
Valve Plate Kit
 $44.32

Part Number: 885551

In Stock, 1 Available

Ships within 1 business day
 $44.32
15
Rubber, Fi Non-Return Valve
 $6.19

Part Number: 160-582

In Stock, 4 Available

Ships within 1 business day
 $6.19
16
Nut (10 Pcs.)
 $4.70

Part Number: 881-489

Ships In 15 - 21 Business Days

Ships in 15 - 21 business days
 $4.70
17
Piston
 $38.36

Part Number: 881-461

Ships In 15 - 21 Business Days

Ships in 15 - 21 business days
 $38.36
18
Counter Weight
 $12.64

Part Number: 887059

In Stock, 3 Available

Ships within 1 business day
 $12.64
19
Housing
 $31.21

Part Number: 160584

Ships In 15 - 21 Business Days

Ships in 15 - 21 business days
 $31.21
20
Washer (10 Pcs.)
 $1.99

Part Number: 881-485

Ships In 15 - 21 Business Days

Ships in 15 - 21 business days
 $1.99
21
Nut For Capacitor & Handle
 $4.92

Part Number: 885-557

In Stock, 1 Available

Ships within 1 business day
 $4.92
22
Oil Dipstick
 $8.47

Part Number: 881-469

In Stock, 19 Available

Ships within 1 business day
 $8.47
23
Start Valve
 $7.18

Part Number: 887060

Ships In 15 - 21 Business Days

Ships in 15 - 21 business days
 $7.18
24
Stud Bolt (3 Pcs.)
 $4.70

Part Number: 881-566

Ships In 15 - 21 Business Days

Ships in 15 - 21 business days
 $4.70
25
Capacitor
 $52.11

Part Number: 881515

In Stock, 12 Available

Ships within 1 business day
 $52.11
27
Tank
 $379.81

Part Number: 160-587

Ships In 15 - 21 Business Days

Ships in 15 - 21 business days
 $379.81
28
Screw
 $4.70

Part Number: 884444

Ships In 15 - 21 Business Days

Ships in 15 - 21 business days
 $4.70
29
Drain Cap
 $4.47

Part Number: 884450

Ships In 15 - 21 Business Days

Ships in 15 - 21 business days
 $4.47
30
Screw
 $4.70

Part Number: 881666

Ships In 15 - 21 Business Days

Ships in 15 - 21 business days
 $4.70
31
Carter Cover
 $14.77

Part Number: 887062

In Stock, 2 Available

Ships within 1 business day
 $14.77
32
Gasket, Carter Cover
 $1.99

Part Number: 887351

In Stock, 1 Available

Ships within 1 business day
 $1.99
33
Crank Shaft With Rotor
 $200.24

Part Number: 887064

In Stock, 1 Available

Ships within 1 business day
 $200.24
34
Ball Bearing 6204DDUCMPS2S
 $12.75

Part Number: 620-4DD

Ships In 15 - 21 Business Days

Ships in 15 - 21 business days
 $12.75
35
Oil Seal 20X47X7
 $9.51

Part Number: 885457

Ships In 15 - 21 Business Days

Ships in 15 - 21 business days
 $9.51
36
Crank Case
 $59.17

Part Number: 887065

In Stock, 1 Available

Ships within 1 business day
 $59.17
37
Nut
 $1.99

Part Number: 881589

Ships In 15 - 21 Business Days

Ships in 15 - 21 business days
 $1.99
38
Motor Stator
 $73.78

Part Number: 887066

Ships In 15 - 21 Business Days

Ships in 15 - 21 business days
 $73.78
39
Ball Bearing 6203DDCMPS2L
 
No Longer Available [ More Info ]

Part Number: 6203VV

Discontinued

Not Available

40
Rear Cover
 $23.21

Part Number: 887067

Ships In 15 - 21 Business Days

Ships in 15 - 21 business days
 $23.21
41
Fan
 $8.04

Part Number: 887068

In Stock, 7 Available

Ships within 1 business day
 $8.04
42
Tension Rod
 
No Longer Available [ More Info ]

Part Number: 887069

Discontinued

Not Available

43
Screw
 $4.70

Part Number: 881479

In Stock, 3 Available

Ships within 1 business day
 $4.70
44
Discharge Tap 1/4"
 $28.68

Part Number: 882610

In Stock, 25+ Available

Ships within 1 business day
 $28.68
45
Compression Nut I Air Hose Connector (3 pcs)
 $4.79

Part Number: 160-571

In Stock, 1 Available

Ships within 1 business day
 $4.79
46
Ferrule, (5Pcs.)
 $4.70

Part Number: 160-570

Ships In 15 - 21 Business Days

Ships in 15 - 21 business days
 $4.70
47
Screw
 $4.70

Part Number: 881571

Ships In 15 - 21 Business Days

Ships in 15 - 21 business days
 $4.70
48
Washer, (1 ea.)
 $1.99

Part Number: 881572

In Stock, 1 Available

Ships within 1 business day
 $1.99
49
Rubber, (5Pcs.)
 $4.70

Part Number: 881-583

In Stock, 9 Available

Ships within 1 business day
 $4.70
50
Base
 $28.44

Part Number: 881-570

Ships In 15 - 21 Business Days

Ships in 15 - 21 business days
 $28.44
51
Rubber Handle
 $12.95

Part Number: 881-582

In Stock, 1 Available

Ships within 1 business day
 $12.95
52
Tube D6 Precut
 $15.14

Part Number: 881-675

In Stock, 13 Available

Ships within 1 business day
 $15.14
53
Non Return Valve
 $26.00

Part Number: 160591

In Stock, 7 Available

Ships within 1 business day
 $26.00
54
N-Feed Tube
 $20.08

Part Number: 887070

In Stock, 1 Available

Ships within 1 business day
 $20.08
55
Tap
 $10.50

Part Number: 885-447

In Stock, 2 Available

Ships within 1 business day
 $10.50
56
Pressure Reducer
 $51.32

Part Number: 885807

In Stock, 12 Available

Ships within 1 business day
 $51.32
57
Pressure Gauge
 $12.51

Part Number: 881-508

In Stock, 25+ Available

Ships within 1 business day
 $12.51
58
Joint
 $8.22

Part Number: 881-511

In Stock, 6 Available

Ships within 1 business day
 $8.22
59
Cord, Electrical 3-Wire
 $49.00

Part Number: 881-503

Ships In 15 - 21 Business Days

Ships in 15 - 21 business days
 $49.00
60
Rubber (Set of 4)
 $28.48

Part Number: 884-421

In Stock, 2 Available

Ships within 1 business day
 $28.48
61
Screw (5 Pcs.)
 $4.70

Part Number: 881-683

Ships In 15 - 21 Business Days

Ships in 15 - 21 business days
 $4.70
62
Self Locking Nut
 $4.70

Part Number: 881401

Ships In 15 - 21 Business Days

Ships in 15 - 21 business days
 $4.70
63
Pressure Switch ( New Style)
 $81.13

Part Number: 882-609

In Stock, 13 Available

Ships within 1 business day
Note: Return Valve Is In The Back Of This Switch
 $81.13
64
Safety Valve 1/4" 10BAR
 $26.76

Part Number: 881-493

In Stock, 12 Available

Ships within 1 business day
 $26.76
65
Thermal Protection
 $11.04

Part Number: 887071

In Stock, 9 Available

Ships within 1 business day
 $11.04
66
Electric Cable
 $36.70

Part Number: 881518

Ships In 15 - 21 Business Days

Ships in 15 - 21 business days
 $36.70
67
Joint
 $9.01

Part Number: 160-595

In Stock, 3 Available

Ships within 1 business day
 $9.01
68
Blade, MK-225, 7X050X5/8, 4mm Saws
 
No Longer Available [ More Info ]

Part Number: 160592

Discontinued

Not Available

69
Pressure Switch Cover
 $24.57

Part Number: 160-580

In Stock, 4 Available

Ships within 1 business day
 $24.57
70
Washer (1 ea.)
 $4.70

Part Number: 881-573

Ships In 15 - 21 Business Days

Ships in 15 - 21 business days
 $4.70
71
Joint
 $8.93

Part Number: 881-576

In Stock, 1 Available

Ships within 1 business day
 $8.93
Miscellaneous Parts
800
Synthetic Compressor Oil 8oz Bottle
 
No Longer Available [ More Info ]

Part Number: 19210B

Discontinued

Not Available

801
3/8" NPT mx 1/4" IND Coupler
 
No Longer Available [ More Info ]

Part Number: 191021

Discontinued

Not Available

802
3/8" NPT Fx 1/4" IND Plug
 
No Longer Available [ More Info ]

Part Number: 190061

Discontinued

Not Available

803
Air Hose 100'X3/8"Rubber
 
No Longer Available [ More Info ]

Part Number: 19407

Discontinued

Not Available

804
3/8" NPT Fx 1/4" IND Coupler
 
No Longer Available [ More Info ]

Part Number: 191151

Discontinued

Not Available

805
3/8" NPT mx 1/4" IND Plug
 
No Longer Available [ More Info ]

Part Number: 190051

Discontinued

Not Available

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Accessories
Accessories for the Hitachi EC89

Questions & Answers

Just acquired this compressor, was going over it, and plugged it in. Heard a humming noise, thought it was frozen up, but it does turn.
Michael for model number EC99S
Hi Michael, Thank you for your question. If your air compressor is humming, there could be a couple of reasons why this is happening. If the motor is humming it is overheating. If the air compressor is plugged into an extension cord, unplug it and plug it into an outlet, that has nothing else plugged into it, preferably one with a 20 amp circuit breaker rather than a 15 amp circuit breaker. The power supply to the air compressor must be clean and through the shortest line possible. Another issue as to why the air compressor is humming is the intake filter. If the intake filter is plugged with dirt and dust, this will prevent air from passing through the filter and add load and stall the motor. To test this, simply unscrew the intake filter and try to start the air compressor with the intake filter removed. If the compressor starts, that could be the cause. Test again by putting the filter back in. If the compressor will not start when the intake filter is in, and it starts with the filter out, replace the filter. If the compressor unloader valve did not work the last time the air compressor reached cut out pressure and stopped, then it is possible that air is now trapped over the pistons and that additional load may be stalling the motor and causing it to hum instead of run. Empty all of the air from the compressor tank. This will also allow any air that is trapped over the pistons to vent out. Close the tank drain and try to start the compressor. If it does start, monitor the unloader valve to be sure that it works. The electric motor usually has a quick-discharge battery on it called a start capacitor to help it start up. If the start capacitor has failed, it will not give the motor the boost it needs to get it started. If the pump has failed, remove the motor from the pump and see if the motor will start. If it starts, there is a load issue causing the humming issue and is likely a failed start capacitor. I hope this helps. Thank you and have a great day!
Diagram of the 4 wires going to capacitor Ec89
Jacckie Shelton for model number Ec89
Hello Jacckie, https://www.ereplacementparts.com/hitachi-ec89-4gallon-portable-twin-stack-air-compressor-parts-c-7927_13217_128646.html page A capacitor place is number 25 Hope this helps
Discussion
Discussion for the Hitachi EC89 4-Gallon Portable Twin Stack Air Compressor

Discussion is closed. To ask our experts a question about a part, use the Q&A feature on our product pages.
Question: Won't Bill Air

Leeparker

Hi
I have a ec89 air compressor I pull the engine apart and from then I can't get it to bill air
I get air in the tube but it won't bill in the tank your assistance is greatly appreciated

Thanks leeparker
WJA
Hello Leeparker,

I was thinking you may be experiencing blow by. That is when the cylinder and the piston and rings have worn down and none of the compressed air is making it to the tank. But since they are no longer available. I would still take the pump apart and look for scaring on the cylinder wall. While you have it apart look for any other worn parts such as the 885551 Valve Plate Kit.

-WJA
Question: Ec89 Compressor

cbanks

it runs fine then about the thrid time it start then it stades won't start just hmmmmslike their a dead stop.
Hi cbanks,
To help you trouble shoot the problem I will need a little more information.

1. Are you using the compressor where its cold.If so how cold?.
2. When it makes a humming sound does it throw the circuit breaker on the circuit its plugged into or does it throw the breaker on the compressor?
3.When the compressor fills up then shuts off do you hear a fast short hiss (dump valve being activated)?
Answering these questions will help define the problem so we don't have you getting parts you don't need.. Hope that helps.Good luck.
Tinker
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