Need parts for your NorthStar 20 Gallon Air Compressor? Our complete parts list for the NorthStar 99306 models helps you quickly find and order the right components.
View the official parts diagram for the NorthStar 99306 air compressor to see the exact location of every component. This detailed schematic helps you confidently identify and order the correct replacement parts for your repair.

NorthStar 99306 Parts List:
| Ref No | Description | Part Number | Qty |
|---|---|---|---|
| 1 | Air tank | 3401A230 | 1 |
| 2 | Drain valve | 2405012 | 1 |
| 3 | Rubber pad set | 3433013-A | 2 |
| 4 | Hexagon head nut | 2B20-FM08 | 2 |
| 5 | Tank wheel | 2402032B | 2 |
| 6 | Tank wheel bolt | 2418005 | 2 |
| 7 | Check valve | 2414025T | 1 |
| 8 | Unloading elbow | 2N06-01T02H | 1 |
| 9 | Unloading tube set | 3B2-02*150F | 1 |
| 10 | Exhaust soft tube | 2T02-04*0400 | 1 |
| 11 | Pressure switch | 2E21-AA256BP | 1 |
| 12 | Plug | 2B14-ST02E | 3 |
| 13 | Pressure relief valve | 2406021A | 1 |
| 14 | Strain relief bushing | 2E04-010 | 2 |
| 15 | Regulator | 2408027 | 1 |
| 16 | Pressure gauge | 2D12-20V200I1 | 2 |
| 17 | Quick coupler | 07MSO1/4M-B | 2 |
| 18 | Exhaust elbow | 2N06-02T02F | 1 |
| 19 | Soft tube | 2T06-025 | 1 |
| 20 | Panel | 3420114 | 1 |
| 21 | Hexagon head bolt | 2B00-FM05*010WB | 6 |
| 22 | Vibration absorber set | 3439042-A | 4 |
| 23 | Grip set | 3432081A-A | 1 |
| 24 | Cable | 2E02-2030512Y1B | 1 |
| 25 | Power cable | 2E01-012 | 1 |
The following section provides a detailed parts list and parts diagram for the Pump Assembly of the NorthStar 20-Gallon Air Compressor (Model 99306).

NorthStar 99306 Pump Parts List
| Ref No | Description | Part Number | Qty |
|---|---|---|---|
| 1 | Cylinder head | 3101-WE11 | 2 |
| 2 | Hexagon socket set bolt | 2B01-M06*065 | 12 |
| 3 | Cylinder head seal | 2G01-WE11 | 2 |
| 4 | In.& Ex. valve assembly | 3B13-WE15 | 2 |
| 5 | Valve seat seal | 2G03-WE15 | 2 |
| 6 | Cylinder | 3201-WE15 | 2 |
| 7 | Piston ring plate | 2214-WE15 | 2 |
| 8 | Piston rod set | 3B3-WE15 | 2 |
| 9 | Cylinder support | 3201H-WE15 | 2 |
| 10 | Motor set | 3B8-WE1500 | 1 |
| 11 | Bearing | 2N35-WE15ROD | 2 |
| 12 | Crankshaft & balancer | 3304-WE15 | 1 |
| 13 | Set screw | 2B07-SM08*16 | 4 |
| 14 | Cooling fan(L) | 2336-WE11L | 1 |
| 15 | Front cover | 3309-WE15 | 2 |
| 16 | Cooling fan( R) | 2336-WE11R | 1 |
| 17 | Screw | 2B17-FW01*03B | 4 |
| 18 | Running capacitor | 2E27-090F2545 | 1 |
| 19 | Air filter | 2140036A | 2 |
| 20 | Nipple | 2N01-WE11 | 2 |
| 21 | Exhaust elbow | 2N06-04T04H | 1 |
| 22 | Capacitor seat | 3417025 | 1 |
| 23 | Hexagon bolt set | 3B00-FM10*016VW | 2 |
| 24 | Capacitor box | 2E23-216 | 1 |
| 25 | Thermal protector | 2E25-15A | 1 |
| 26 | Cover set | 3428-WE15A | 2 |





