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Details
| Specification | Value |
|---|---|
| Brand | APEC |
| MPN | ast6121 |
| Category | Track Rod End |
| Fitting Position | Front Right |
| Thread Size | M14x1.5 |
| for steering manufacturer | SMI-Koyo |
| paired article number | AST6120 |
OE/OEM numbers (12)
Search by this OE number to find compatible parts
- AUDI / SEAT / SKODA / VAG / VW—1J0422812B
- VW—5Z0423812
- VW—5Z1419812
- SEAT / SKODA / VW—6Q0419812C
- AUDI / SEAT / SKODA / VAG / VW—6Q0423812
- SEAT / SKODA / VW—6Q0423812A
- SEAT / SKODA / VAG / VW—6Q0423812C
- SEAT / SKODA / VW—6Q0423812D
- SEAT / SKODA / VW—6R0423812
- SKODA / VW—6RD 422 812
- SEAT / SKODA / VW—6RD423812A
- SEAT / SKODA / VW—6RD 423 812 B
Where this part fits
Original-fit position for OE 5Z0423812. The red ring marks where this part installs on the vehicle.
About this product
Sourced from APEC, this track rod end (AST6121) combines precision engineering with durable materials to meet the demands of everyday driving and extended service intervals. Technical specifications — Fitting Position: Front Right, Thread Size: M14x1.5, for steering manufacturer: SMI-Koyo, paired article number: AST6120 — are verified against the OEM data sheet to guarantee fitment accuracy and performance parity with the original equipment. Verified to fit SEAT, SKODA, VW models. All compatibility data is cross-checked against the TecDoc database — select your vehicle to confirm the part matches your specific engine and year. This part supersedes original equipment references: 040367B, 040479B, 116 020 0004, 1160200004 and 63 more. Matching these numbers confirms a like-for-like replacement with no loss of function. APEC is a recognised supplier of automotive replacement components to independent workshops and dealer networks across Europe. All parts are sourced from authorised distribution channels and carry full manufacturer traceability — you receive exactly the same component supplied to professional garages and dealer workshops. If fitment or specifications do not match your vehicle, our technical team can help identify the correct alternative — use the vehicle selector or contact us with your VIN for a guaranteed-fit recommendation. Replacing worn components on schedule preserves your vehicle's safety, reliability, and resale value — and aftermarket parts from established brands deliver OEM-equivalent performance at a fraction of the dealer price. Every part is dispatched from our UK warehouse with a 30-day money-back guarantee and free hassle-free returns.
Suitable cars
Equivalent products (55)
Show all 55 OE numbers
Track Rod End APEC AST6121 — compatible car models
| Car models | SEAT: CORDOBA (6L2), IBIZA III (6L1), IBIZA IV (6J5, 6P1), IBIZA IV SC (6J1, 6P5), IBIZA IV ST (6J8, 6P8), Mii (KF1, KE1); SKODA: FABIA I (6Y2), FABIA I Combi (6Y5), FABIA II (542), FABIA II Combi (545), FABIA I Praktik (6Y5), FABIA I Saloon (6Y3), ROOMSTER (5J7); VW: FOX Hatchback (5Z1, 5Z3, 5Z4), POLO IV (9N, 9A), POLO IV Saloon (9N2, 9N4), POLO V (6R1, 6C1), POLO Van V (6R1, 6C1), POLO V Saloon (602, 604, 612, 614), UP! (121, 122, BL1, BL2, BL3, 123) |
|---|---|
| Engines | 1.2; 1.0; electric; 1.9 TDI; 1.0 TSI; 1.6 |
| Year of manufacture | 1999-2022 |
| Manufacturer article number (MPN) | AST6121 |
| OE part numbers | 1J0422812B, 5Z0423812, 5Z1419812, 6Q0419812C, 6Q0423812, 6Q0423812A, 6Q0423812C, 6Q0423812D, 6R0423812, 6RD 422 812, 6RD423812A, 6RD 423 812 B |
Compatibility check
Loading vehicle data…
Please wait while we load vehicle compatibility information.Description and what's included
APEC ast6121 Apec. Fitting Position: VR. for steering manufacturer: SMI-Koyo. paired article number: AST6120. Thread Size: M14x1.5
- 1x Track Rod End
Shipping, returns, warranty
Free UK delivery on orders over £99.00. Express and standard shipping available.
- Standard delivery: 2-5 business days
- Express delivery: 1-2 business days
- Free returns within 14 days
- All parts backed by manufacturer warranty
Warranty: 12-month manufacturer warranty on all parts. 14-day money-back guarantee if the part doesn't fit your vehicle.
Frequently Asked Questions
Is this Track Rod End compatible with my car?
This Track Rod End fits SEAT, SKODA, VW vehicles. Use the vehicle selector at the top of the page to check exact compatibility — enter your car's make, model, and engine for a confirmed fitment match. All fitment data is verified through TecDoc.
What specifications does this APEC Track Rod End have?
This APEC Track Rod End has the following specifications: Fitting Position: VR; Thread Size: M14x1.5; for steering manufacturer: SMI-Koyo; paired article number: AST6120. Check the full specifications table above for complete details.
What OE part numbers does this Track Rod End replace?
This Track Rod End replaces OE part numbers: 1J0422812B, 5Z0423812, 5Z1419812, 6Q0419812C, 6Q0423812, 6Q0423812A, 6Q0423812C, 6Q0423812D and 4 more. Cross-reference these numbers with your vehicle's original part number to confirm compatibility.
How much does a Track Rod End cost?
Track Rod End prices vary depending on brand, specifications, and vehicle compatibility. Check the current price above for this APEC Track Rod End. All parts come with our 14-day money-back guarantee.
How do I know when to replace my Track Rod End?
Signs include play in the steering, the vehicle drifting or wandering on the road, uneven tyre wear (especially inner-edge wear), clunking from the steering when turning, or a misaligned steering wheel at centre.
What tools do I need to replace a Track Rod End?
Tools needed: tie rod end puller, 17-19mm spanner (for locking nut), socket set, torque wrench, new cotter pin. Difficulty: Moderate DIY. Safety warning: After fitting, the vehicle must have a 4-wheel alignment check before extended driving -- an incorrect toe setting causes rapid tyre wear and unpredictable handling.
Can I use this part as a replacement for OE 1J0422812B?
Yes, this APEC Track Rod End is a direct replacement for OE part number 1J0422812B. It is manufactured to meet or exceed original equipment specifications, ensuring proper fitment and performance. All cross-reference data is verified through TecDoc.
Related categories
Common OE numbers for this part
Common original equipment numbers linked to stocked alternatives.
