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Details
| Specification | Value |
|---|---|
| Brand | FIRST LINE |
| MPN | fsk6439 |
| Category | bushing, control/trailing arm |
| Diameter [mm] | 66.3 mm |
| Length [mm] | 76 mm |
| Inner Diameter [mm] | 14.1 mm |
| paired article number | FSK6439 |
OE/OEM numbers (3)
Search by this OE number to find compatible parts
- BMW—31 10 3 412 781
- BMW—31121096372
- BMW—31126769715
Where this part fits
Original-fit position for OE 31103412781. The red ring marks where this part installs on the vehicle.
About this product
Sourced from FIRST LINE, this bushing, control/trailing arm (FSK6439) combines precision engineering with durable materials to meet the demands of everyday driving and extended service intervals. Technical specifications — Diameter [mm]: 66, Cast Iron mm, Length [mm]: 76 mm, Inner Diameter [mm]: Nylon, Steel mm, paired article number: FSK6439 — are verified against the OEM data sheet to guarantee fitment accuracy and performance parity with the original equipment. Verified to fit BMW 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: 017-00289, 045796B, 08.31.058, 12.10.282 and 71 more. Matching these numbers confirms a like-for-like replacement with no loss of function. FIRST LINE 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 (74)
Show all 74 OE numbers
bushing, control/trailing arm FIRST LINE FSK6439 — compatible car models
| Car models | BMW: X3 (E83), X5 (E53), X5 (E70) |
|---|---|
| Engines | 2.0 d; 3.0 d |
| Year of manufacture | 2000-2013 |
| Manufacturer article number (MPN) | FSK6439 |
| OE part numbers | 31 10 3 412 781, 31121096372, 31126769715 |
Compatibility check
Loading vehicle data…
Please wait while we load vehicle compatibility information.Description and what's included
FIRST LINE fsk6439 bushing, control/trailing arm. Diameter [mm]: 66,3 mm. Inner Diameter [mm]: 14,1 mm. Length [mm]: 76 mm. paired article number: FSK6439
- 1x bushing, control/trailing arm
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 bushing, control/trailing arm compatible with my car?
This bushing, control/trailing arm fits BMW 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 FIRST LINE bushing, control/trailing arm have?
This FIRST LINE bushing, control/trailing arm has the following specifications: Diameter [mm]: 66,3 mm; Length [mm]: 76 mm; Inner Diameter [mm]: 14,1 mm; paired article number: FSK6439. 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: 31 10 3 412 781, 31121096372, 31126769715. Cross-reference these numbers with your vehicle's original part number to confirm compatibility.
How much does a bushing, control/trailing arm cost?
Bushing, control/trailing arm prices vary depending on brand, specifications, and vehicle compatibility. Check the current price above for this FIRST LINE bushing, control/trailing arm. All parts come with 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 31 10 3 412 781?
Yes, this FIRST LINE bushing, control/trailing arm is a direct replacement for OE part number 31 10 3 412 781. 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.
