• 20998739 Relay | Genuine Volvo Penta Part
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20998739 Relay | Genuine Volvo Penta Part

20998739 Relay | Genuine Volvo Penta Part

$556.16 AUD
$556.16 AUD
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Shipping calculated at checkout.

Available from Volvo Penta international

Typically reaches our store in 10–14 business days

Availability checked daily with Volvo Penta

✓ Authorised Volvo Penta Dealer · Genuine Volvo Penta parts · Ships Australia-wide

🔧 Product Description

High-current electrical relay used in the tad420ve 12 v engine-heater electrical and coolant installation. It allows the control circuit to switch the connected load without carrying full load current. Application note: High-current relay for the engine-heater circuit.

🚤 Compatibility

  • Engine Family: TD, TAD
  • HP Range: Approximately 140 HP
  • Year Range: Approximately late 1990s-2000s

Full model list at the end of this description.

⚙️ Key Features

  • 12 V relay from the Other Electrical Equipment group
  • 0.351 kg
  • Listed for 24 applications across TD and TAD series engines
  • Sized for the engine-heater load rather than a signal circuit

🔌 Function

Switches the connected high-current load when commanded by the lower-current control circuit.

⚠️ Common Signs of Failure

  • Connected system does not operate when commanded
  • Relay/solenoid clicks but current or flow is absent
  • Intermittent operation under vibration
  • Burnt contacts, overheated coil or melted terminals
  • Coil resistance or voltage drop outside specification

🛠️ Service Notes

  • Check the heater element and its supply fuse before condemning the relay, since a failed load draws no current and mimics a dead relay
  • Confirm system voltage before fitting, as this is the 12 V part

🔄 Supersession & Cross Reference

OEM / Related Numbers

  • 20998736 cable set
  • 20796993 and 20796994 cable sets
  • 947628 gasket
  • 20998750 adapter
  • 969011 gasket
  • 20573949 and 22288340 engine-heater references
  • 20405599 O-ring

📦 Condition

  • Genuine Volvo Penta part
  • Brand new
  • Supplied in original or equivalent packaging

🔎 Full Model Compatibility

Typically suits:

  • Volvo Penta TAD520GE, TAD520VE
  • Volvo Penta TAD530GE MECH, TAD530GE EDC4
  • Volvo Penta TAD531GE MECH, TAD531GE EDC4
  • Volvo Penta TAD720GE, TAD720VE
  • Volvo Penta TAD721GE, TAD721VE
  • Volvo Penta TAD722GE, TAD722VE
  • Volvo Penta TAD730GE MECH, TAD730GE EDC4
  • Volvo Penta TAD731GE MECH, TAD731GE EDC4
  • Volvo Penta TAD420VE
  • Volvo Penta TAD532GE EDC4
  • Volvo Penta TAD620VE
  • Volvo Penta TAD732GE EDC4
  • Volvo Penta TAD733GE EDC4
  • Volvo Penta TD420VE
  • Volvo Penta TD520GE
  • Volvo Penta TD720GE

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

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?

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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