20412318 Stud | Genuine Volvo Penta Part
20412318 Stud | Genuine Volvo Penta Part
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✓ Authorised Volvo Penta Dealer · Genuine Volvo Penta parts · Ships Australia-wide
🔧 Product Description
Genuine Volvo Penta exhaust mounting stud used at four positions on the low-mounted turbocharger installation fitted to TAD530GE and TAD531GE engines. It secures the exhaust flange and must be renewed if the threads have stretched, corroded or seized.
🚤 Compatibility
Typically suits:
- Volvo Penta TD420VE
- Volvo Penta TD520GE
- Volvo Penta TAD550GE
- Volvo Penta TAD551GE
- Volvo Penta TAD560VE
- Volvo Penta TAD561VE
- Volvo Penta TAD420VE
- Volvo Penta TAD520GE
- Volvo Penta TAD520VE
- Volvo Penta TAD530GE MECH
- Volvo Penta TAD530GE EDC4
- Volvo Penta TAD531GE MECH
- Volvo Penta TAD531GE EDC4
- Volvo Penta TAD532GE EDC4
- Engine Family: TD, TAD
⚙️ Key Features
- Four studs used in the applicable turbocharger flange
- Confirmed in the front exhaust-outlet, low-mounted turbo arrangement
- Designed for repeated high-temperature thermal cycling
- Used with hexagon nuts 20517048 and flange 20405607
- Apply the specified installation procedure rather than general-purpose fastener torque
- Engine type: Volvo Penta 5-litre turbocharged industrial diesel
- 4 used per assembly
🔌 Function
Secures the turbocharger exhaust flange while maintaining clamp load through high exhaust temperature cycles.
⚠️ Common Signs of Failure
- Exhaust soot around the flange
- Stud corrosion, stretching or thread damage
- Loose exhaust flange
- Repeated exhaust-gasket failure
- Stud seizure during turbocharger removal
🛠️ Service Notes
- Clean and chase the female thread before fitting so the stud can pull down square and to full depth
- Screw studs in with a proper stud installer or the double-nut method; gripping the plain shank with pliers or self-grips scores it and the nut will never seat or torque correctly afterwards
- Screw the stud home until it seats as the manual for your engine describes, and no further — a stud wound in hard to cure a slack thread will simply split the casting
- Renew studs that are stretched, necked, bent or corroded rather than reusing them; exhaust and manifold studs in particular are cheap next to the work of extracting a broken one
- Tighten the nuts to the torque figures and in the sequence given in the workshop manual for your engine, and where a stud passes into an oil or coolant space seal it as the manual specifies
🔄 Supersession & Cross Reference
OEM Supersession Chain
- 20412318 → Supersedes 20803881 → Supersedes 20405609
OEM / Related Numbers
- 20803881 earlier number superseded by this part
- 24426737 - related turbocharger
- 20517048 - retaining hexagon nut
- 20405607 - exhaust flange
- 20795122 - related gaskets
- 20405590 - related gaskets
OEM Reman Alternatives
- 3802191 - Volvo Penta exchange turbocharger
📦 Condition
- Genuine Volvo Penta part
- Brand new
- Supplied in original or equivalent packaging
Shipping & Delivery
Shipping & Delivery
Flat-rate shipping Australia-wide — $14.99 per order, no matter how many parts you add. Orders dispatch from our Kadina, South Australia store. Need it urgently or want to collect in person? Call us on 0412 532 984 before ordering.
Returns & Warranty
Returns & Warranty
14-day change-of-mind returns — if it's not right or you ordered the wrong part, send it back within 14 days in new, unused condition for a refund or exchange. Manufacturer warranties apply to new parts. Full details in our Refunds & Returns policy.
Not sure this fits?
Not sure this fits?
Ask us before you buy — we check part numbers and fitment every day. Call 0412 532 984 (Mon–Fri 8.30am–4.30pm) or message us through the contact page with your engine or vehicle details.
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