Turbo Bypass / Recirculation Valve Diaphragm – Volvo 2.5T TD04L | K5T09671
The turbocharger bypass (recirculation) valve on Volvo 2.5T and other TD04L platforms uses a rubber diaphragm to control boost pressure during throttle-off. When the diaphragm tears, the valve stops closing properly — causing turbo surge, compressor damage, and flat spots during acceleration. This replacement diaphragm restores correct bypass valve function.
Fits OEM #30650634.
When to Inspect This Part
- loss of boost or engine power
- underboost or overboost fault
- limp mode
- abnormal noise from the turbo actuator or linkage
What's Included
- 1 × Turbo Bypass / Recirculation Valve Diaphragm
OEM Part Numbers and Vehicle Fitment
Additional confirmed fitment
- SAAB 9-3 Aero TD04L Turbo
- VOLVO TD04L, TD04H, TD04HL Turbo
- Hyundai Genesis Coupe TD04 turbo
- Dodge SRT-4 TD04LR / TD05HR Stage 3 Turbo
Part Number / PN
30650634, 8603226, 36002369, TD04HL, K5T09671, 424-10401-002
Important Fitment Check
Before ordering, compare the part design, dimensions, connectors, and every available OEM/P/N marking with the part installed on the vehicle. Matching OEM/P/N 30650634 is the primary fitment check.
FAQ
How do I confirm fitment for this Turbo Bypass / Recirculation Valve Diaphragm?
Compare the exact OEM/P/N and physical design with the installed part. The primary reference is 30650634. Do not select the part by vehicle model alone.
What symptoms may indicate a problem with this Turbo Bypass / Recirculation Valve Diaphragm?
Confirmed symptoms include loss of boost or engine power, underboost or overboost fault, limp mode, abnormal noise from the turbo actuator or linkage. Diagnose the original assembly before ordering so another fault is not mistaken for this part.
What is included with this Turbo Bypass / Recirculation Valve Diaphragm?
The confirmed kit contents are: 1 × Turbo Bypass / Recirculation Valve Diaphragm.
Does this listing include the complete surrounding assembly?
No. It includes only the item or repair components identified for this SKU. Inspect related parts separately and replace them only when diagnosis confirms a fault.
What should be checked before installation?
Check the OEM/P/N, dimensions, connectors, orientation, and condition of the mating components. Installation should follow the correct service procedure for the specific vehicle and assembly.
Read All
Orders ship within 1–2 business days.
Standard delivery:
- USA: Some items ship from our US warehouse and arrive within 3 business days.
- USA-EU: 10–21 business days
- Worldwide: 14–30 business days
Shipping cost is shown at checkout.
Can I exchange or return an item?
Yes, you can exchange or return an item within 14 days of purchase. This right is guaranteed to you by the Law on the Protection of Consumer Rights
To use this feature, please make sure that:
- the product was not in use and has no traces of use: scratches, chips, abrasions, etc.
- the goods are fully completed and the integrity of the packaging is not violated
- retained all labels and factory markings