- Shop with confidence: competitive prices, exclusive deals, and delivery perks.
- Need it quickly? We dispatch fast-moving parts daily. Check delivery options.
- Swap or return items within the standard return period with a simple process.
- Questions about fitment or orders? Our support team is ready to help.
Similar products
Customers also bought
Details
| Specification | Value |
|---|---|
| Brand | BORG & BECK |
| MPN | bsk6421 |
| Category | bushing, control/trailing arm |
| Diameter [mm] | 42.2 mm |
| Length [mm] | 76 mm |
| Inner Diameter [mm] | 12.2 mm |
| paired article number | FSK6421 |
OE numbers (2)
Search by this OE number to find compatible parts
- ALFA ROMEO—50509339 S1
- ALFA ROMEO—50509340 S1
About this product
When bushing, control/trailing arm performance matters, the BORG & BECK BSK6421 delivers — built to the same dimensional and material standards as the original part it replaces. The part is built to the following specification: Diameter [mm]: 42, Aluminium mm, Length [mm]: 76 mm, Inner Diameter [mm]: Zinc, Aluminium mm, paired article number: FSK6421. Each dimension is checked against the OEM reference to ensure the component seats and functions correctly first time. Compatible with ALFA ROMEO vehicles; use the vehicle selector above to confirm exact fitment for your make, model, and engine variant. Fitment data is sourced from TecDoc, the authoritative European parts catalogue. This part supersedes original equipment references: 1215306, 15146100008, 19125101004, 1-SB5 and 31 more. Matching these numbers confirms a like-for-like replacement with no loss of function. BORG & BECK 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 with tracked delivery and a 14-day money-back guarantee with hassle-free returns.
Suitable cars
Equivalent products (33)
Show all 33 OE numbers
bushing, control/trailing arm BORG & BECK BSK6421 — compatible car models
| Car models | ALFA ROMEO: 147 (937), 156 (932), 156 Sportwagon (932), GT (937) |
|---|---|
| Engines | 1.6 16V T.SPARK (937.AXA1A, 937.AXB1A, 937.BXB1A); 1.6 16V T.SPARK (932A4); 1.6 16V T.SPARK. (932B4100); 1.9 JTD (937CXN1B) |
| Year of manufacture | 1997-2010 |
| Manufacturer article number (MPN) | BSK6421 |
| OE part numbers | 50509339 S1, 50509340 S1 |
Compatibility check
Loading vehicle data…
Please wait while we load vehicle compatibility information.Description and what's included
BORG & BECK bsk6421 bushing, control/trailing arm. Diameter [mm]: 42,2 mm. Inner Diameter [mm]: 12,2 mm. Length [mm]: 76 mm. paired article number: FSK6421
- 1x bushing, control/trailing arm
Shipping, returns, warranty
Free UK delivery on orders over £99.00. Tracked standard shipping.
- Standard delivery: 5–9 business days
- Order before 5pm — ships the next working day
- 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 bushing, control/trailing arm compatible with my car?
This bushing, control/trailing arm fits ALFA ROMEO 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 BORG & BECK bushing, control/trailing arm have?
This BORG & BECK bushing, control/trailing arm has the following specifications: Diameter [mm]: 42,2 mm; Length [mm]: 76 mm; Inner Diameter [mm]: 12,2 mm; paired article number: FSK6421. Check the full specifications table above for complete details.
What OE part numbers does this bushing, control/trailing arm replace?
This bushing, control/trailing arm replaces OE part numbers: 50509339 S1, 50509340 S1. Cross-reference these numbers with your vehicle's original part number to confirm compatibility.
How much does a bushing, control/trailing arm cost?
This BORG & BECK bushing, control/trailing arm is available for £10.99. Bushing, control/trailing arm prices vary depending on brand, specifications, and vehicle compatibility. BORG & BECK parts offer a balance of quality and value, backed by our 14-day money-back guarantee.
How do I know when to replace my bushing, control/trailing arm?
Regular inspection of your bushing, control/trailing arm is recommended as part of routine vehicle maintenance. Watch for changes in performance, unusual noises, or visual signs of wear. Consult your vehicle's owner manual for manufacturer-recommended replacement intervals specific to your make and model.
What tools do I need to replace a bushing, control/trailing arm?
Tools required vary by vehicle make and model. Generally, a basic socket set, screwdrivers, and vehicle-specific tools may be needed. We recommend consulting a workshop manual for your specific vehicle, or having the bushing, control/trailing arm fitted by a professional mechanic.
Can I use this part as a replacement for OE 50509339 S1?
Yes, this BORG & BECK bushing, control/trailing arm is a direct replacement for OE part number 50509339 S1. 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.
