21705453 Thermostat | Genuine Volvo Penta Part
21705453 Thermostat | Genuine Volvo Penta Part
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In stock — Australian warehouse
Typically reaches our store in 3–5 business days
Availability checked daily with Volvo Penta
✓ Authorised Volvo Penta Dealer · Genuine Volvo Penta parts · Ships Australia-wide
🔧 Product Description
Wax-element coolant thermostat used on Volvo Penta TAD734GE and related Volvo D8K industrial engines. It regulates coolant flow between the engine and radiator to maintain the designed operating temperature.
⚙️ Key Features
- Thermostat from the Cooling System group
- 0.184 kg
- Supersedes 21360430
- Recorded against 12 TAD series applications in the cost records
🔌 Function
Restricts coolant flow during warm-up and opens at the calibrated temperature to control engine operating temperature.
⚠️ Common Signs of Failure
- Engine runs too cold
- Temperature fluctuates
- Thermostat stuck open or closed
- Coolant leakage at the housing
🛠️ Service Notes
- Renew the thermostat housing seal or gasket at the same time
- Check the temperature sender and the gauge before condemning the thermostat, as a false reading mimics a stuck unit
🔄 Supersession & Cross Reference
OEM Supersession Chain
- 21705453 → Supersedes 21360430 → Supersedes 21061992 → Supersedes 20914594
OEM / Related Numbers
- 21360430 earlier number superseded by this part
- 21061992 earlier number superseded by this part
- 21033605 earlier number superseded by this part
- 20914594 earlier number superseded by this part
Other-Brand OEM Numbers
- VOE21705453
- MAHLE: THD 6 86
- Gates: TH63586G1
- Behr Thermot-Tronik: THD 6 86
Aftermarket / Verified Equivalents
- NRF: 725017
- Thermotec: D2RV005TT
- Febi Bilstein: 171012
- Auger: 99180
- LEMA: 590586
- Calorstat by Vernet: THCT19122.86
- MTE-Thomson: VT629.86
📦 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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