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Details
| Specification | Value |
|---|---|
| Brand | DELPHI |
| MPN | tc731 |
| Length [mm] | 153 mm |
| Width [mm] | 43 mm |
| Height [mm] | 69 mm |
| Thread Size | Pinch Bolt 16mm |
OE/OEM numbers (1)
Search by this OE number to find compatible parts
- MAZDA—B455-34-550
Where this part fits
Original-fit position for OE B45534550. The red ring marks where this part installs on the vehicle.
About this product
Sourced from DELPHI, this ball joint (TC731) combines precision engineering with durable materials to meet the demands of everyday driving and extended service intervals. Technical specifications — Length [mm]: 153 mm, Width [mm]: 43 mm, Height [mm]: 69 mm, Thread Size: Pinch Bolt 16mm — 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: 101-4194, 1396, 14147, 15488 and 51 more. Matching these numbers confirms a like-for-like replacement with no loss of function. DELPHI 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.
About DELPHI
Delphi Technologies, with roots dating back to 1994 as part of General Motors, is a globally recognised supplier of fuel injection, ignition, and engine management systems. Delphi specialises in diesel injectors, fuel pumps, ignition coils, lambda sensors, and engine management components. As an OE supplier to major manufacturers worldwide, Delphi products are engineered to original factory specifications. With deep expertise in both petrol and diesel fuel systems, Delphi is the professional's choice for precision engine and fuel system components.
Suitable cars
Equivalent products (56)
Show all 56 OE numbers
Ball Joint DELPHI TC731 — compatible car models
| Car models | MAZDA: 323 C IV (BG), 323 F IV (BG), 323 S IV (BG) |
|---|---|
| Engines | 1.3 16V (BG3S); 1.6 16V (BG6S, BG6P); 1.3 16V (BG3P) |
| Year of manufacture | 1987-2000 |
| Manufacturer article number (MPN) | TC731 |
| OE part numbers | B455-34-550 |
Compatibility check
Loading vehicle data…
Please wait while we load vehicle compatibility information.Description and what's included
DELPHI tc731 . Height [mm]: 69 mm. Length [mm]: 153 mm. Thread Size: Pinch Bolt 16mm. Width [mm]: 43 mm
- 1x Ball Joint
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 Ball Joint compatible with my car?
This Ball Joint 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 DELPHI Ball Joint have?
This DELPHI Ball Joint has the following specifications: Length [mm]: 153 mm; Width [mm]: 43 mm; Height [mm]: 69 mm; Thread Size: Pinch Bolt 16mm. Check the full specifications table above for complete details.
What OE part numbers does this Ball Joint replace?
This Ball Joint replaces OE part numbers: B455-34-550. Cross-reference these numbers with your vehicle's original part number to confirm compatibility.
How much does a Ball Joint cost?
This DELPHI Ball Joint is available for £15.99. Ball Joint prices vary depending on brand, specifications, and vehicle compatibility. DELPHI parts offer a balance of quality and value, backed by our 14-day money-back guarantee.
How do I know when to replace my Ball Joint?
Signs include clunking or knocking noises from the front suspension, wandering steering, uneven tyre wear, or vibration in the steering wheel.
What tools do I need to replace a Ball Joint?
Tools needed: ball joint separator (fork or press type), 18-21mm socket, hub nut socket (32-36mm on driven axles), torque wrench, new cotter pin. Difficulty: Moderate DIY. Safety warning: Never reuse an old split pin (cotter pin) after disturbing a ball joint nut. A loose ball joint can allow the wheel to detach from the vehicle at speed -- this is a critical safety component.
Can I use this part as a replacement for OE B455-34-550?
Yes, this DELPHI Ball Joint is a direct replacement for OE part number B455-34-550. 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.
