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Details
| Specification | Value |
|---|---|
| Brand | HERTH+BUSS JAKOPARTS |
| MPN | j4403001 |
| Category | Spring |
| Thickness [mm] | 12.5 mm |
| Length [mm] | 355 mm |
| Weight [kg] | 2.15 kg |
| Outer Diameter [mm] | 156 mm |
OE numbers (3)
Search by this OE number to find compatible parts
- MAZDA—BP4K-34-011A
- MAZDA—BP4K-34-011B
- MAZDA—BP4K-34-011C
Where this part fits
Original-fit position for OE BP4K34011C.
About this product
Sourced from HERTH+BUSS JAKOPARTS, this spring (J4403001) combines precision engineering with durable materials to meet the demands of everyday driving and extended service intervals. Technical specifications — Thickness [mm]: Zinc, Rubber mm, Length [mm]: 355 mm, Weight [kg]: Aluminium, EPDM kg, Outer Diameter [mm]: 156 mm, Colour Coding: 20 — are verified against the OEM data sheet to guarantee fitment accuracy and performance parity with the original equipment. Verified to fit MAZDA 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: 10-21572-SX, 14.872.043, 16015, 1662-4003 and 38 more. Matching these numbers confirms a like-for-like replacement with no loss of function. HERTH+BUSS JAKOPARTS 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 with tracked delivery and a 14-day money-back guarantee with hassle-free returns.
Suitable cars
Equivalent products (40)
Show all 40 OE numbers
Spring HERTH+BUSS JAKOPARTS J4403001 — compatible car models
| Car models | MAZDA: 3 (BK), 3 Saloon (BK) |
|---|---|
| Engines | 1.3 (BK14); 1.6 (BK12) |
| Year of manufacture | 1999-2009 |
| Manufacturer article number (MPN) | J4403001 |
| OE part numbers | BP4K-34-011A, BP4K-34-011B, BP4K-34-011C |
Compatibility check
Loading vehicle data…
Please wait while we load vehicle compatibility information.Description and what's included
HERTH+BUSS JAKOPARTS j4403001 Spring. Colour Coding: 2. Colour Coding: 20. Length [mm]: 355 mm. Outer Diameter [mm]: 156 mm. Thickness [mm]: 12,5 mm. Weight [kg]: 2,15 kg
- 1x Spring
Shipping, returns, warranty
Free UK delivery on orders over £50.00. Tracked standard shipping.
- Standard delivery: 4–8 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 Spring compatible with my car?
This Spring fits MAZDA 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 HERTH+BUSS JAKOPARTS Spring have?
This HERTH+BUSS JAKOPARTS Spring has the following specifications: Thickness [mm]: 12,5 mm; Length [mm]: 355 mm; Weight [kg]: 2,15 kg; Outer Diameter [mm]: 156 mm; Colour Coding: 20; Colour Coding: 2. Check the full specifications table above for complete details.
What OE part numbers does this Spring replace?
This Spring replaces OE part numbers: BP4K-34-011A, BP4K-34-011B, BP4K-34-011C. Cross-reference these numbers with your vehicle's original part number to confirm compatibility.
How much does a Spring cost?
This HERTH+BUSS JAKOPARTS Spring is available for £58.99. Spring prices vary depending on brand, specifications, and vehicle compatibility. HERTH+BUSS JAKOPARTS parts offer a balance of quality and value, backed by our 14-day money-back guarantee.
How do I know when to replace my Spring?
Regular inspection of your Spring 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 Spring?
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 Spring fitted by a professional mechanic.
Can I use this part as a replacement for OE BP4K-34-011A?
Yes, this HERTH+BUSS JAKOPARTS Spring is a direct replacement for OE part number BP4K-34-011A. 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.
