21429783 Alternator | Genuine Volvo Penta Part
21429783 Alternator | Genuine Volvo Penta Part
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Availability checked daily with Volvo Penta
✓ Authorised Volvo Penta Dealer · Genuine Volvo Penta parts · Ships Australia-wide
🔧 Product Description
Genuine 28-volt 80-amp alternator used on Volvo Penta D16C marine generator and related heavy-duty diesel installations.
🚤 Compatibility
Typically suits:
- Volvo Penta D16C-A MG
- Volvo Penta D16C-A MH
- Volvo Penta D16C-B MH
- Volvo Penta D16C-C MH
- Volvo Penta D16C-D MH
- Volvo Penta TAD1640GE
- Volvo Penta TAD1641GE
- Volvo Penta TAD1642GE
- Engine Family: D, TAD
⚙️ Key Features
- Nominal 24V system / 28V charging output
- Rated output: 80A
- Confirmed D16C-A MG application
- Genuine remanufactured option 3803639
🔌 Function
The alternator supplies regulated electrical current for battery charging, engine controls and vessel or generator loads.
⚠️ Common Signs of Failure
- Low charging voltage
- Battery warning
- Intermittent electrical power
- Bearing or pulley noise
- Overheating or burnt terminals
- Excessive AC ripple
🛠️ Service Notes
- Isolate the batteries before you start, and never disconnect the alternator or battery cables with the engine running — that will destroy the diodes
- Reconnect exactly as it came off, correct polarity, terminals clean and tight, and check the earth path through the mountings and engine is sound
- Check the pulleys line up and the belt runs true; renew a glazed, cracked or oil-contaminated belt at the same time and tension it by the procedure in the manual for your engine
- Support the alternator while you fit and tighten the mounting and adjusting bolts to the manual's figures, and never lever against the alternator body or end covers
- After fitting, confirm the charge warning goes out and charging voltage is correct, and recheck belt tension after the first running period
🔄 Supersession & Cross Reference
OEM Supersession Chain
- 21429783 → Supersedes 20849349 → Supersedes 20409228 → Supersedes 3803639
OEM / Related Numbers
- 20849349 earlier number superseded by this part
- 20409228 earlier number superseded by this part
- 3803639 earlier number superseded by this part
- 85000626 related reference
- 85003355 related reference
- 3842566 - Alternator brackets by application
- 23437318 - Alternator brackets by application
- 3589369 - Insulating bushing
- 984737 - Flange screws
- 984826 - Flange screws
- 990960 - Flange lock nut
Other-Brand OEM Numbers
- Mahle: MG815
- Lucas Electrical: LEA0630
- Prestolite Electric: 860804
- Bosch: 0 986 046 290
- Prestolite Electric: 860804GB
- MAHLE: MG 800
- Lucas: LRA02801
- Hella: 8EL 012 584-101
- Valeo: 443511
- Valeo: 202014
Aftermarket / Verified Equivalents
- HC-Cargo: 114212
- Aftermarket alternator family cross-referencing Bosch 0 124 555 009
- DT Spare Parts: 2.21041
- AS-PL: A0063
- HC-Cargo: F 032 114 212
- Sampa: 033.429
- Febi Bilstein: 100525
- Auger: 78941
- ERA: 210966
- Trucktec Automotive: 03.17.008
- Meat & Doria: 5610088G
📦 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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