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Details
| Specification | Value |
|---|---|
| Brand | SIDEM |
| MPN | 821404kit |
| Fitting Position | Front Axle |
| Height [mm] | 52 mm |
| only in connection with | 3 x nut + ring |
| Inner Diameter [mm] | 12 mm |
| Outer Diameter [mm] | 144 mm |
OE/OEM numbers (5)
Search by this OE number to find compatible parts
About this product
The SIDEM Repair Kit Suspension Strut Support Mount (821404 KIT) is a professional-grade replacement component engineered for long service life and reliable operation across all conditions your vehicle encounters. The part is built to the following specification: Fitting Position: Front Axle, Height [mm]: 52 mm, only in connection with: 3 x nut + ring, Inner Diameter [mm]: Zinc mm, Outer Diameter [mm]: 144 mm. Each dimension is checked against the OEM reference to ensure the component seats and functions correctly first time. 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: 102403, 20 10 2403, 31 33 6 771 515 S1, 31 33 6 774 738 S1 and 8 more. Matching these numbers confirms a like-for-like replacement with no loss of function. SIDEM is a recognised supplier of automotive suspension 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 (7)
Repair Kit Suspension Strut Support Mount SIDEM 821404 KIT — compatible car models
| Car models | BMW: 5 (E60), X5 (E70), X6 (E71, E72) |
|---|---|
| Engines | 525 i; 3.0 3.0d; M |
| Year of manufacture | 2001-2015 |
| Manufacturer article number (MPN) | 821404 KIT |
| OE part numbers | 31 33 6 771 515 S1, 31 33 6 774 738 S1, 31 33 6 776 391 S1, 31 33 6 788 776 S1, 31 33 6 857 001 S1 |
Compatibility check
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Please wait while we load vehicle compatibility information.Description and what's included
SIDEM 821404kit . Fitting Position: VA. Height [mm]: 52 mm. Inner Diameter [mm]: 12 mm. only in connection with: 3 x nut + ring. Outer Diameter [mm]: 144 mm. Supplementary Article/Info 2: 5
- 1x Repair Kit Suspension Strut Support Mount
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 Repair Kit Suspension Strut Support Mount compatible with my car?
This Repair Kit Suspension Strut Support Mount 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 SIDEM Repair Kit Suspension Strut Support Mount have?
This SIDEM Repair Kit Suspension Strut Support Mount has the following specifications: Fitting Position: VA; Height [mm]: 52 mm; only in connection with: 3 x nut + ring; Inner Diameter [mm]: 12 mm; Outer Diameter [mm]: 144 mm; Supplementary Article/Info 2: 5. Check the full specifications table above for complete details.
What OE part numbers does this Repair Kit Suspension Strut Support Mount replace?
This Repair Kit Suspension Strut Support Mount replaces OE part numbers: 31 33 6 771 515 S1, 31 33 6 774 738 S1, 31 33 6 776 391 S1, 31 33 6 788 776 S1, 31 33 6 857 001 S1. Cross-reference these numbers with your vehicle's original part number to confirm compatibility.
How much does a Repair Kit Suspension Strut Support Mount cost?
This SIDEM Repair Kit Suspension Strut Support Mount is available for £27.99. Repair Kit Suspension Strut Support Mount prices vary depending on brand, specifications, and vehicle compatibility. SIDEM parts offer a balance of quality and value, backed by our 14-day money-back guarantee.
How do I know when to replace my Repair Kit Suspension Strut Support Mount?
Regular inspection of your Repair Kit Suspension Strut Support Mount 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 Repair Kit Suspension Strut Support Mount?
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 Repair Kit Suspension Strut Support Mount fitted by a professional mechanic.
Can I use this part as a replacement for OE 31 33 6 771 515 S1?
Yes, this SIDEM Repair Kit Suspension Strut Support Mount is a direct replacement for OE part number 31 33 6 771 515 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.
