PRODUCT DETAILS
TT-15 and TT-16 Power Unit. This is part number 4400871. This is the complete unit coming with all parts included in the diagram. You may use the power unit's diagram to order parts individually on this as well.
Click the highlighted description to navigate to the individual items.
| Number | Description | Quantity Needed |
| 1 | 4423520 Motor 8111 | 1 |
| 2 | 4400879 Pump and Reservoir Only | 1 |
| 3 | 4420409 Breather Cap | 1 |
| 4 | 4405 Reservoir ø4.50 x 13 | 1 |
| 5 | 4421530 Seal | 1 |
| 6 | 4421520 Bearing | 1 |
| 7 | 4480 Buss Bar | 1 |
| 8 | 4468 Solenoid | 1 |
| 9 | 4421600 O-Ring | 1 |
| 10 | 4445 Solenoid Valve Asm | 1 |
| 11 | 4452 Solenoid Coil only | 1 |
| 12 | 4408 Bracket | 1 |
| 13 | 8104-006 Screw .31 x 1.00 | 2 |
| 14 | 4488-001 Hose Clamp | 1 |
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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
Shipping timelines, transit options, and exceptions can vary by part and location. Please review our official policy page for the most current shipping and return details.
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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.
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OEM 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.
No active OEM diagram references are currently available for this item.
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- Description
TT-15 and TT-16 Power Unit. This is part number 4400871. This is the complete unit coming with all parts included in the diagram. You may use the power unit's diagram to order parts individually on this as well.
Click the highlighted description to navigate to the individual items.
| Number | Description | Quantity Needed |
| 1 | 4423520 Motor 8111 | 1 |
| 2 | 4400879 Pump and Reservoir Only | 1 |
| 3 | 4420409 Breather Cap | 1 |
| 4 | 4405 Reservoir ø4.50 x 13 | 1 |
| 5 | 4421530 Seal | 1 |
| 6 | 4421520 Bearing | 1 |
| 7 | 4480 Buss Bar | 1 |
| 8 | 4468 Solenoid | 1 |
| 9 | 4421600 O-Ring | 1 |
| 10 | 4445 Solenoid Valve Asm | 1 |
| 11 | 4452 Solenoid Coil only | 1 |
| 12 | 4408 Bracket | 1 |
| 13 | 8104-006 Screw .31 x 1.00 | 2 |
| 14 | 4488-001 Hose Clamp | 1 |