Thieman TWL 125ET 16ET 20ET Liftgate Parts Diagrams
Thieman TWL 125ET 16ET 20ET liftgate parts lookup
Use this Thieman TWL 125ET 16ET 20ET liftgate parts diagram page to identify OEM components, review part callouts, and verify replacement liftgate parts.
Compatibility and Purchasing Notice
Although the information on this page is taken from an OEM lift gate manual, if you're unsure whether this data matches your exact model and year, PLEASE contact our team. Part numbers can vary by year - even within the same model - and we're always happy to confirm the correct parts for you.
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INSPECTION AND LOCATION OF DECALS
| Item | Qty | Part Number | Description | Actions |
|---|---|---|---|---|
| 1 | 4671050 | Warning Decal-off center | ||
| 2 | 4650150 | Fast Idle Decal | ||
| 3 | 4609 | Danger Decal-no riding | ||
| 4 | 4657 | Operating Decal | ||
| 5 | 4650060 | Capacity Decal-1250# | ||
| 5 | 4650750 | Capacity Decal-1600# | ||
| 5 | 4650100 | Capacity Decal-2000# | ||
| 6 | 4650800 | Thieman Nameplate | ||
| 7 | 4650530 | Urgent Warning Decal | ||
| 8 | 5705 | Reflector (3) | ||
| 9 | 4650770 | Caution Decal-Platform Area | ||
| 10 | 4612 | Wiring Decal-Gravity Down | ||
| 10 | 4614 | Wiring Decal-Power Down | ||
| 11 | 4620 | Warning-Leaking Fluid Decal | ||
| 12 | 4650820 | Toggle Switch Decal |
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.
Have your liftgate serial number ready for faster assistance. Where to find it
PLATFORM ASSEMBLY
| Item | Qty | Part Number | Description | Actions |
|---|---|---|---|---|
| 1 | 3400430 | Platform 6626 | ||
| 1 | 3400440 | Platform 7832 | ||
| 1 | 3400450 | Platform 8432 | ||
| 1 | 3400460 | Platform 9032 | ||
| 1 | 3400860 | Platform - Exp. Metal 7832 | ||
| 1 | 3400870 | Platform - Exp. Metal 8432 | ||
| 1 | 3400880 | Platform - Exp. Metal 9032 | ||
| 2 | 3103730 | Chain Anchor | ||
| 3 | 31606 | Chain and S Hook |
CLOSING LINKAGE PARTS
| Item | Qty | Part Number | Description | Actions |
|---|---|---|---|---|
| 1 | 1 | 3101910 | Spring Adjustment Bracket | |
| 2 | 1 | 3101920 | Closing Bracket | |
| 3 | 2 | 31261 | Opening Adjustment Bracket | |
| 4 | 1 | 5792004 | Square Head Set Screw .75 x 3.00 | |
| 5 | 3 | 8426897 | Jam Nut .75 | |
| 6 | 2 | 3107760 | Adjustment Stud | |
| 7 | 5 | 5101100 | Spring | |
| 8 | 3 | 8137185 | Cotter Pin | |
| 9 | 1 | 5794001 | Clevis Pin .62 | |
| 10 | 2 | 8138078 | Clevis Pin .38 | |
| 11 | 1 | 8271291 | Grease Fitting | |
| 12 | 1 | 5701043 | Handle Grip | |
| 13 | 1 | 3501 | Spacer | |
| 14 | 1 | 31268 | Linkage Rod Asm |
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.
Have your liftgate serial number ready for faster assistance. Where to find it
TRUNNION, LIFT ARMS, AND IDLER ARMS
| Item | Qty | Part Number | Description | Actions |
|---|---|---|---|---|
| 1 | 1 | 31262 | Trunnion Asm | |
| 1 | 1 | 31263 | Trunnion Asm | |
| 2 | 2 | 2103070 | Mounting Plate | |
| 3 | 1 | 31264 | Lift Arm | |
| 3 | 1 | 31265 | Lift Arm | |
| 4 | 1 | 3100290 | Idler Arm Pivot R.H. | |
| 5 | 1 | 3102090 | Idler Arm Pivot L.H. | |
| 6 | 2 | 3102110 | Idler Arm | |
| 6 | 2 | 3102120 | Idler Arm | |
| 7 | 2 | 2307020 | Pin Strap | |
| 8 | 2 | 8120214 | Lockwasher .31 | |
| 9 | 2 | 8104-006 | Screw .31 x 1.00 | |
| 10 | 2 | 5001801 | Pin Asm. | |
| 11 | 6 | 8271291 | Grease Fitting | |
| 12 | 4 | 9411032 | Grease Fitting 90° | |
| 13 | 2 | 5001811 | Pin Asm | |
| 14 | 1 | 5001271 | Pin Asm | |
| 15 | 2 | 5001301 | Pin Asm | |
| 16 | 4 | 8120238 | Jam Nut .50 | |
| 17 | 4 | 8100-001 | Square Head Set Screw .50 x 2.00 | |
| 18 | 12 | 5781015 | Retaining Ring | |
| 19 | 3 | 5001761 | Pin Asm. |
PUMP ASSEMBLY-ELECTRIC CONTROL GRAVITY DOWN
| Item | Qty | Part Number | Description | Actions |
|---|---|---|---|---|
| 1 | 1 | 4400351 | Pump Asm. - incl. 2 thru 6 | |
| 2 | 1 | 4421420 | Pump Bracket | |
| 3 | 1 | 4421350 | Mounting Bracket | |
| 4 | 1 | 4423520 | Motor 8111 | |
| 5 | 1 | 4468 | Solenoid | |
| 6 | 1 | 4420410 | Breather Cap | |
| 7 | 1 | 5704 | Cover | |
| 8 | 1 | 5700100 | Strap | |
| 9 | 1 | 4930-001 | Elbow MJ-MAORB | |
| 10 | 1 | 4954 | Breather | |
| 11 | 1 | 4931-001 | Restrictor Elbow MJ-MAORB | |
| 12 | 1 | 4318-001 | Cable Asm #2 x 2' | |
| 13 | 2 | 5001841 | Pin Asm. | |
| 14 | 1 | 4294 | Cylinder 3.00 x 8.00 | |
| 14 | 1 | 4295 | Cylinder 3.00 x 10.38 | |
| 15 | 1 | 4300030 | Battery Cable #2 x 25' | |
| 16 | 1 | 4350 | Cable Lug | |
| 17 | 12 | 5701260 | Cable Retainer | |
| 18 | 5 | 8180126 | Screw .38 x 1.50 | |
| 19 | 10 | 8106-010 | Internal Tooth Lockwasher .38 | |
| 20 | 5 | 8120377 | Nut .38 | |
| 21 | 4 | 8120388 | Flatwasher .38 | |
| 22 | 1 | 4951-006 | Hose 34.00 | |
| 23 | 1 | 4301770 | Circuit Breaker | |
| 24 | 1 | 31446 | Toggle Switch Asm | |
| 25 | 1 | 4422850 | Pushbutton Control | |
| 26 | 2 | 8111-005 | Screw #10 x .75 | |
| 27 | 1 | 4318-002 | Ground Cable #2 x 2' | |
| 28 | 1 | 8104-006 | Screw .31 x 1 | |
| 29 | 1 | 4319-002 | Heat Shrink |
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.
Have your liftgate serial number ready for faster assistance. Where to find it
PUMP ASSEMBLY-ELECTRIC CONTROL POWER DOWN
| Item | Qty | Part Number | Description | Actions |
|---|---|---|---|---|
| 1 | 4404 | EST Pump Asm.-incl. 2 thru 6 | ||
| 2 | 4421420 | Pump Bracket | ||
| 3 | 8104-006 | Screw .31 x 1 | ||
| 4 | 4423520 | Motor 8111 | ||
| 5 | 4468 | Solenoid | ||
| 6 | 4420410 | Breather Cap | ||
| 7 | 5704 | Cover | ||
| 8 | 5700100 | Strap | ||
| 9 | 4930-001 | Elbow MJ-MAORB | ||
| 10 | 4951-006 | Hose 34.00 | ||
| 11 | 4931-001 | Restrictor Elbow MJ-MAORB | ||
| 12 | 4318-001 | Cable Asm #2 x 2' | ||
| 13 | 5001841 | Pin Asm. | ||
| 14 | 4294 | Cylinder 3.00 x 8.00 | ||
| 14 | 4295 | Cylinder 3.00 x 10.38 | ||
| 15 | 4300030 | Battery Cable #2 x 25' | ||
| 16 | 4350 | Cable Lug | ||
| 17 | 5701260 | Cable Retainer | ||
| 18 | 8180126 | Screw .38 x 1.50 | ||
| 19 | 8106-010 | Internal Tooth Lockwasher .38 | ||
| 20 | 8120377 | Nut .38 | ||
| 21 | 8120388 | Flatwasher .38 | ||
| 22 | 4319-002 | Heat Shrink | ||
| 23 | 31445 | Toggle Switch Asm | ||
| 24 | 4422860 | Pushbutton Control | ||
| 25 | 8111-005 | Screw #10 x .75 | ||
| 26 | 4301770 | Circuit Breaker | ||
| 27 | 4318-002 | Ground Cable #2 x 2' |
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Phone
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Contact SupportImportant Diagram Notice
These diagrams are for reference only.
- Due to unintended occasional data alignment issues, a page table may differ slightly from the original OEM PDF.
- Please verify details against the original PDF file.
- Contact our team anytime for part number confirmation.
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