Model 3 Front Seat Belt Assembly: Left, Right or Pair
This front seat belt retractor assembly is listed for Model 3 2017–2023. Choose the front-left reference 1105821-C1-I, front-right reference 1105822-C1-I or the pair. The described design includes woven polyester webbing and an integrated pretensioner. Installation falls under Tesla’s applicable SRS instructions.
- Model 3 2017–2023
- Left / Right / Pair
- Part References
- SRS Component
Key Features
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Side-Specific References
The left option references 1105821-C1-I and the right option references 1105822-C1-I.
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Three Purchase Options
Select Front Left, Front Right or the Front Left & Right pair.
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Retractor Assembly
The described assembly combines belt webbing with a retractor and integrated pretensioner.
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Woven Webbing
The belt is described with woven polyester webbing.
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Restraint Connection
The design includes a harness connection for the seat belt warning and restraint system.
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SRS Component
Replacement follows the applicable restraint-system service procedure.
Highlights
Retractor and Webbing Layout
The front-facing product view shows the black webbing loop, its guide and the retractor housing together. The visible layout illustrates the assembly form for this front-seat-belt listing.
Compatibility
| Model | Years / Version | Notes |
|---|---|---|
| Tesla Model 3 | 2017–2023 | Listed range; left 1105821-C1-I / right 1105822-C1-I. |
Fits Model 3 2017–2023. Does not fit 2024+ Highland.
Specifications
| Product Type | Front seat belt retractor assembly |
|---|---|
| Compatible Models | Listed for Tesla Model 3 2017–2023 |
| Position / Location | Front left or right, defined while seated facing forward |
| Material | Woven polyester belt webbing |
| Quantity | One selected side, or one left-and-right pair |
| Connector Type | Restraint-system connector |
| OEM Part Number | Reference numbers: left 1105821-C1-I; right 1105822-C1-I; not proof of genuine origin |
| Shipping Weight | 500 g for one side; 1,000 g for the pair; not net assembly weight |
What’s in the Box
- Selected front-left assembly, front-right assembly or left-and-right pair. Buckle, bolts and ancillary components are not listed.
Good to Know
Caution
- This is a safety restraint component.
- Do not open, repair, probe or energize a pretensioner.
- Replacing only this assembly does not by itself restore all crash protection or resolve every restraint fault.
Care
- Have damaged webbing or abnormal locking and retraction assessed professionally.
FAQ
How are left and right defined?
From a seated position in the vehicle facing forward. Driver and passenger sides vary by market.
Are the two reference numbers interchangeable?
No. The listing identifies 1105821-C1-I for the front left and 1105822-C1-I for the front right.
Does the reference number prove this is a new genuine Tesla part?
No. The reference number does not establish origin or condition.
Can I install it at home or expect no restraint faults?
This listing does not guarantee fault-free operation or restored crash protection.
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