• 21129980 Starter Motor | Genuine Volvo Penta Part
  • 21129980 Starter Motor | Genuine Volvo Penta Part - photo 2 of 2
1 2

21129980 Starter Motor | Genuine Volvo Penta Part

21129980 Starter Motor | Genuine Volvo Penta Part

$1,505.87 AUD
$1,505.87 AUD
Sale Sold out
Shipping calculated at checkout.

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

A flange-mounted permanent-magnet reduction starter for GM-based Volvo Penta gasoline engines. The compact high-torque unit uses an integrated solenoid and overrunning pinion to engage the flywheel ring gear during cranking.

⚙️ Key Features

  • Flange-mounted marine starter; offset-bolt starter 3885317 is a different configuration
  • Permanent-magnet gear-reduction design
  • Marine ignition-protected construction
  • Integrated solenoid and overrunning drive
  • Engine type: GM-based Volvo Penta gasoline marine engine
  • Also supersedes Volvo part number 3857921

🔌 Function

Converts battery power into high-torque rotation of the flywheel so the gasoline engine reaches starting speed.

⚠️ Common Signs of Failure

  • Loose fit or loss of alignment
  • Leakage or chafing at adjoining parts

🛠️ Service Notes

  • Disconnect the batteries before touching starter cables, and label the main and control connections as they come off
  • Inspect the ring gear teeth before fitting a new motor; a chipped or worn ring gear will ruin the new pinion
  • Mount the motor square on clean faces with whatever shims the installation uses, so pinion engagement matches what the workshop manual for your engine specifies — never leave shims out to make it fit
  • Clean the main and earth terminals back to bright metal, tighten to the specified figure and refit the insulating boots; a great many failed starters are really voltage drop in the cables and earth path
  • Crank with the engine unable to start first, listening for clean engagement and release, then feel the terminals for heat after several attempts

🔄 Supersession & Cross Reference

OEM Supersession Chain

  • 21129980 → Supersedes 3862985 → Supersedes 3803147

OEM / Related Numbers

  • 3862985 earlier number superseded by this part
  • 855334 earlier number superseded by this part
  • 3803147 earlier number superseded by this part
  • 841377 related reference
  • Indmar 573001
  • PCM/Crusader RA122009
  • 3885317 - offset-bolt mounting alternative, not interchangeable without checking the block

Other-Brand OEM Numbers

  • Mercury/MerCruiser 50-808011A05 / 808011A4 / 808011A3 / 17251A4
  • AC Delco 8000186 / 9000888

Aftermarket / Verified Equivalents

  • ARCO Marine: 30459
  • ProTorque: PH140-0022
  • Recmar: REC50-808011A05
  • Lester 6793
  • API Marine: PH140-0022

📦 Condition

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

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.

View full details