SEAT Ibiza Mk4 6J 6P 5DR 2008-2017 Rear Left NSR Seat Belt 6J0857805A TRW
SEAT Ibiza Mk4 6J 6P 5DR 2008-2017 Rear Left NSR Seat Belt 6J0857805A TRW
SEAT Ibiza IV / Mk4 • 5-door hatchback • rear restraint component
Rear Left Outer / NSR Seat Belt & Inertia Reel
6J0 857 805 A RAA • TRW 34079180
Factory-original used rear-left outer seat-belt assembly for the SEAT Ibiza Mk4 5-door vehicle family. Identification is based on the photographed label and the handwritten NSR position mark on the actual item.
Physical position: left side of the vehicle when seated and facing forwards. On a UK right-hand-drive vehicle this is the nearside rear / passenger-side rear outer seating position.
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Verified Part Identity
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Correct Vehicle Reference — 5-Door Example
The photographs below show the correct five-door Ibiza Mk4/6J body style as a visual reference. They are not photographs of the donor vehicle and do not replace a VIN check.
THEPARTPILOT • REFERENCE
THEPARTPILOT • REFERENCE
Vehicle reference image credits: Rudolf Stricker, CC BY-SA 2.0 DE; Carlosseat, CC BY-SA 4.0. Hosted by Wikimedia Commons.
Where It Fits & What It Does
Installation location
Mounted behind the left rear quarter / C-pillar trim. The webbing feeds through the upper guide to the left rear outer passenger position and anchors to the body at the specified mounting points.
Mechanical function
The inertia reel allows normal occupant movement, retracts excess webbing and is designed to lock during rapid belt extraction or sudden vehicle deceleration.
Safety role
Restrains the left rear outer occupant and helps manage occupant movement in a collision. It does not control the airbag or ABS system.
Compatibility & Exclusion Chart
This chart deliberately separates the target application from body styles that show cross-reference evidence but have not been approved for this individual item without a VIN and label match.
| Vehicle | Years / type | Position | Status | Required check |
|---|---|---|---|---|
| SEAT Ibiza IV / Mk4 5-door hatchback | 2008-2017 model family 6J5 / 6P1 |
Rear left outer / NSR UK | Target application | VIN decode plus exact label match: 6J0 857 805 A RAA / TRW 34079180. |
| SEAT Ibiza SportCoupe / SC 3-door | 6J1 / 6P5 model family | Rear outer | Do not assume | The same base number appears in cross-reference evidence, but this listing is prepared for the 5-door item. Order only after VIN and label verification. |
| SEAT Ibiza ST estate | 6J8 / 6P8 model family | Rear outer | Do not assume | Estate-body fitment is not confirmed from the photographed item. VIN, label, reel orientation and mount geometry must be checked. |
| SEAT Ibiza Mk4 right rear | All | Rear right outer / OSR UK | Does not fit | This item is physically marked NSR and is being sold as rear left. Do not order for the right side. |
| SEAT Ibiza front seat-belt positions | All | Front left or front right | Does not fit | Rear assembly only. |
| SEAT Ibiza 6L / Mk3 | Earlier generation | Any | Does not fit | Different vehicle generation and component family. |
| SEAT Ibiza KJ / Mk5 | Later generation | Any | Does not fit | Different vehicle platform and component family. |
| Other SEAT, Volkswagen, Audi or Skoda models | Any | Any | Not listed | No cross-model fitment is claimed. Similar appearance is not proof of compatibility. |
What Is Included
Included
- Used rear-left outer seat-belt webbing and inertia-reel assembly shown in the photographs.
- Upper guide / bracket and attached hardware only where visibly present in the listing photographs.
- Identity label carrying 6J0 857 805 A RAA and TRW 34079180.
Not included unless pictured
- Seat-belt buckle or buckle stalk.
- Interior trim panels, rear seat, pillar covers or parcel-shelf trim.
- Vehicle mounting bolts, clips or one-time-use fixings.
- Wiring loom, control module or separate pyrotechnic component.
Symptoms That May Indicate Replacement Is Needed
Poor retraction
Webbing remains loose, retracts slowly, needs repeated assistance or does not return fully with the seat unoccupied.
Locking fault
The reel jams during normal movement or fails to lock when the webbing is pulled sharply in the correct installed orientation.
Visible damage
Cuts, fraying, fluffing, burns, heavy contamination, stretching, damaged stitching, distorted guides or bent mounting points.
Abnormal operation
Grinding, clicking or inconsistent reel action, a damaged tongue, or webbing that twists repeatedly through the guide.
Post-collision concern
A belt or restraint mounting involved in an impact should be assessed using the manufacturer repair procedure before the vehicle returns to service.
MOT concern
A belt that is missing, weakened, damaged, incorrectly typed or not functioning as intended can be recorded as a major defect.
Why Choose a Factory-Original Used Part?
A factory-original component is engineered around the vehicle's mounting geometry, reel orientation, guide position, buckle tongue profile and restraint-system integration. Matching the exact label and VIN is still essential: even a factory-original part can be wrong for a different body, side, colour suffix or build specification.
- Correct vehicle-specific mounting and belt routing when the verified number matches.
- Original-style webbing width, guide shape, reel housing and bracket arrangement.
- Used parts can reduce the cost of repair compared with buying new from a dealer.
- On selected components, used-part savings may reach approximately 70%; the actual saving depends on the current new price, availability and condition.
Professional Fitting Guidance
Typical tools
- Plastic trim-removal tools.
- Ratchet, extensions and the correct Torx, hex or triple-square bits after inspection.
- Calibrated torque wrench covering the specified workshop-manual range.
- Battery-terminal tool.
- Diagnostic scan tool if any restraint-system connector or warning light is involved.
- Replacement trim clips or one-time-use fixings where specified.
Estimated workshop time
Typical planning allowance: 0.8-1.2 labour hours.
This is an estimate rather than an official flat-rate time. Access varies with trim specification, previous repairs, seized fixings, damaged clips and whether diagnostic work is required.
High-level fitting sequence
- Confirm the replacement label, suffix, side, reel orientation and mounting geometry against the removed component and VIN-specific parts data.
- Switch off the ignition. Follow the vehicle repair manual for battery disconnection and the specified waiting period where SRS or restraint-system components may be nearby.
- Protect the interior, then remove the rear seat cushion, side bolster and rear quarter/C-pillar trim only as required for safe access.
- Photograph the original belt routing, upper guide orientation, lower anchor and reel mounting position before removal.
- Remove the relevant anchor, guide and retractor fasteners using the correct tools. Disconnect any electrical provision only where present and only by the prescribed procedure.
- Install the replacement in exactly the same orientation. Ensure the webbing is not twisted, trapped, cut or routed against a sharp trim edge.
- Replace single-use fasteners where the workshop manual requires them. Tighten every restraint fixing to the exact VIN-specific value and sequence.
- Refit trim without obstructing the webbing. Reconnect the battery as prescribed, inspect for warning lights and scan the restraint system if applicable.
- Function-test the buckle engagement, release, full webbing extension, smooth retraction and sharp-pull locking action with the reel correctly installed.
Static Garage Labour Cost Estimator
Active scripts are not used in this eBay description, so the estimator is presented as a reliable calculation table.
| Garage rate | 0.8 hour | 1.0 hour | 1.2 hours |
|---|---|---|---|
| £60 per hour | £48 | £60 | £72 |
| £80 per hour | £64 | £80 | £96 |
| £100 per hour | £80 | £100 | £120 |
| £120 per hour | £96 | £120 | £144 |
Labour illustration only. Excludes the part, diagnostics, additional trim clips, seized fasteners, taxes charged by the repairer and any work discovered after dismantling.
Fitting, Repairs & WhatsApp
Fitting service: may be available for the purchased part, subject to workshop capacity, prior assessment and a separate written quotation. Ask through eBay Messages before travelling.
How to arrange: use eBay Messages so the enquiry, VIN check, appointment and order remain attached to the eBay transaction.
How to find us / WhatsApp
Scan the QR code to open a WhatsApp chat for collections and enquiries.
If the QR image needs refreshing, generate it again from the same WhatsApp link.
Dispatch, Address & International Delivery
International delivery: eBay-managed international shipping is offered only where the listing and checkout show the destination as eligible. eBay calculates the international postage, import charges and available destinations. Item-level, carrier, legal and destination restrictions can override the general programme list.
Potential programme destinations shown by eBay when eligible:
- Antigua and Barbuda
- Aruba
- Australia
- Austria
- Bahamas
- Bahrain
- Bangladesh
- Barbados
- Belgium
- Belize
- Bermuda
- Bolivia
- Brazil
- Brunei Darussalam
- Bulgaria
- Cambodia
- Canada
- Cayman Islands
- Chile
- China
- Colombia
- Costa Rica
- Croatia
- Cyprus
- Czech Republic
- Denmark
- Dominica
- Dominican Republic
- Ecuador
- Egypt
- El Salvador
- Estonia
- Finland
- France
- French Guiana
- Germany
- Greece
- Grenada
- Guadeloupe
- Guatemala
- Guernsey
- Honduras
- Hong Kong
- Hungary
- Iceland
- Indonesia
- Ireland
- Israel
- Italy
- Jamaica
- Japan
- Jersey
- Jordan
- Kuwait
- Latvia
- Liechtenstein
- Lithuania
- Luxembourg
- Macau
- Malaysia
- Maldives
- Malta
- Martinique
- Mexico
- Monaco
- Montserrat
- Netherlands
- New Zealand
- Nicaragua
- Norway
- Oman
- Pakistan
- Panama
- Paraguay
- Peru
- Philippines
- Poland
- Portugal
- Qatar
- Reunion
- Romania
- Saint Kitts and Nevis
- Saint Lucia
- Saudi Arabia
- Singapore
- Slovakia
- Slovenia
- South Africa
- South Korea
- Spain
- Sri Lanka
- Sweden
- Switzerland
- Taiwan
- Thailand
- Trinidad and Tobago
- Turks and Caicos Islands
- Ukraine
- United Arab Emirates
- United States
- Uruguay
- Vietnam
Important: inclusion above does not promise delivery for this specific item. The destination options displayed by eBay at checkout are definitive; for example, an individual listing can exclude a country that is generally supported by the programme.
Returns, Warranty & Order Accuracy
Fitment responsibility
Ask for VIN verification before ordering. A compatibility suggestion, registration lookup or similar-looking photograph is not a substitute for the exact label and vehicle build data.
Use the correct eBay return reason if a return is needed. Buyer and seller protections are handled through the eBay order.
Returned condition
Return the item in the condition supplied, complete, unmodified and securely packed. Where eBay permits a deduction, it will be limited to the actual loss in value caused by use, fitting, damage, missing parts or inadequate return packaging. No automatic percentage deduction is imposed merely because a part does not fit.
VAT Margin / Global Accounting
This used item is sold under the applicable VAT margin arrangement using global accounting. VAT is not shown separately on the invoice and is not reclaimable as input tax. The total price displayed on eBay is the item price payable, plus any delivery or import charges shown by eBay.
Large Stockholding & Careful Dispatch
THEPARTPILOT • ILLUSTRATION
THEPARTPILOT • ILLUSTRATION
Support a Local Small Business & Reuse Parts ♻️
Choosing a correctly matched used component supports a local independent automotive business, keeps serviceable material in circulation and can reduce demand for energy and raw materials associated with manufacturing a replacement. Reuse is most beneficial when the part is safe, correctly identified and suitable for continued service.
Small-business support
Your order supports local jobs, dismantling expertise, stock management and knowledgeable fitment assistance.
Responsible reuse
Serviceable parts can remain in use instead of being prematurely discarded, provided safety and condition checks are satisfied.
Order accuracy
VIN and label verification helps reduce unnecessary shipping, failed repairs and avoidable returns.