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Details
| Specification | Value |
|---|---|
| Brand | OSSCA |
| Inner Diameter [mm] | 21 mm |
OE/OEM numbers (5)
Search by this OE number to find compatible parts
- VAG—443 399 313 A
- VAG—443 399 313 B
- VAG—443 399 313 C
- VAG—443 399 313 D
- VAG—443 411 327
Where this part fits
Original-fit position for OE 443411327. The red ring marks where this part installs on the vehicle.

About this product
The OSSCA Pressure Converter Exhaust Control (01729) 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: Inner Diameter [mm]: 21 mm. Each dimension is checked against the OEM reference to ensure the component seats and functions correctly first time. This part supersedes original equipment references: 443 399 313 A, 443 399 313 B, 443 399 313 C, 443 399 313 D and 1 more. Matching these numbers confirms a like-for-like replacement with no loss of function. OSSCA 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
Vehicle matches are curated from manufacturer data
Confirmed fits based on manufacturer data.No equivalent parts found.
Pressure Converter Exhaust Control OSSCA 01729 — compatible car models
| Manufacturer article number (MPN) | 01729 |
|---|---|
| OE part numbers | 443 399 313 A, 443 399 313 B, 443 399 313 C, 443 399 313 D, 443 411 327 |
Compatibility check
Loading vehicle data…
Please wait while we load vehicle compatibility information.Description and what's included
OSSCA 01729 . Inner Diameter [mm]: 21 mm
- 1x Pressure Converter Exhaust Control
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 Pressure Converter Exhaust Control compatible with my car?
Use the vehicle selector at the top of the page to check compatibility. Enter your car's make, model, and engine — we'll confirm whether this Pressure Converter Exhaust Control fits. All fitment data is verified through TecDoc.
What specifications does this OSSCA Pressure Converter Exhaust Control have?
This OSSCA Pressure Converter Exhaust Control has the following specifications: Inner Diameter [mm]: 21 mm. Check the full specifications table above for complete details.
What OE part numbers does this Pressure Converter Exhaust Control replace?
This Pressure Converter Exhaust Control replaces OE part numbers: 443 399 313 A, 443 399 313 B, 443 399 313 C, 443 399 313 D, 443 411 327. Cross-reference these numbers with your vehicle's original part number to confirm compatibility.
How much does a Pressure Converter Exhaust Control cost?
This OSSCA Pressure Converter Exhaust Control is available for £0.99. Pressure Converter Exhaust Control prices vary depending on brand, specifications, and vehicle compatibility. OSSCA parts offer a balance of quality and value, backed by our 14-day money-back guarantee.
How do I know when to replace my Pressure Converter Exhaust Control?
Regular inspection of your Pressure Converter Exhaust Control 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 Pressure Converter Exhaust Control?
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 Pressure Converter Exhaust Control fitted by a professional mechanic.
Can I use this part as a replacement for OE 443 399 313 A?
Yes, this OSSCA Pressure Converter Exhaust Control is a direct replacement for OE part number 443 399 313 A. 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.