PRODUCT DETAILS
Thieman liftgate power unit - gravity down (toggle). This is part number 4400351. This is a 2500 psi unit. It is also the same as part number 4498.
| Item | Part Number Description | Qty./Model |
| 1 | 4423520 Motor 8111 | 1 |
| 2 | 4400359 Pump and Reservoir Only (2500 PSI) | 1 |
| 2 | 44008 Pump and Reservoir Only (2000 PSI) | 1 |
| 3 | 4420410 Breather Cap | 1 |
| 4 | 4403 Reservoir ø6 x 9 | 1 |
| 5 | 4421520 Bearing | 1 |
| 6 | 4421530 Seal | 1 |
| 7 | 4421350 Bracket | 1 |
| 8 | 4421420 Bracket | 1 |
| 9 | 4480 Buss Bar | 1 |
| 10 | 4468 Solenoid | 1 |
| 11 | 4421600 O-Ring | 1 |
| 12 | 8109-009 Screw .25 x 1.38 | 2 |
| 13 | 4445 Valve Asm | 1 |
| 14 | 4452 Coil only | 1 |
| 15 | 4421660 Self Tap Screw #10 x .38 | 6 |
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MODELS USING THIS PART
Note
This part appears in the following parts manuals. Always verify compatibility with your specific liftgate model and serial number before ordering.
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SHIPPING AND RETURNS
Shipping Information
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Return eligibility, time windows, and any applicable fees are outlined on our policy page. Policy terms may be updated there, so please refer to that page before placing your order.
View Return PolicyOEM Parts Diagram References
Find this Thieman Liftgate part in original OEM diagrams. Each link opens directly to the matching section in a new tab.
Reference Notice: Manual links are provided for reference only. If you have any doubt, contact us — we’re happy to verify parts and help you purchase with confidence.
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- Description
Thieman liftgate power unit - gravity down (toggle). This is part number 4400351. This is a 2500 psi unit. It is also the same as part number 4498.
| Item | Part Number Description | Qty./Model |
| 1 | 4423520 Motor 8111 | 1 |
| 2 | 4400359 Pump and Reservoir Only (2500 PSI) | 1 |
| 2 | 44008 Pump and Reservoir Only (2000 PSI) | 1 |
| 3 | 4420410 Breather Cap | 1 |
| 4 | 4403 Reservoir ø6 x 9 | 1 |
| 5 | 4421520 Bearing | 1 |
| 6 | 4421530 Seal | 1 |
| 7 | 4421350 Bracket | 1 |
| 8 | 4421420 Bracket | 1 |
| 9 | 4480 Buss Bar | 1 |
| 10 | 4468 Solenoid | 1 |
| 11 | 4421600 O-Ring | 1 |
| 12 | 8109-009 Screw .25 x 1.38 | 2 |
| 13 | 4445 Valve Asm | 1 |
| 14 | 4452 Coil only | 1 |
| 15 | 4421660 Self Tap Screw #10 x .38 | 6 |