873770 Alternator | Genuine Volvo Penta Part

🔧 Product Description

Genuine Volvo Penta alternator rated 14 V, 60 A and listed at a 12 V/60 A capacity, fitting D1-20, D1-30, D2-40, D2-55A and D2-75A engines. From the Alternator, Charging, Electric Motor and Electric Drives group, it weighs 5.130 kg and is listed for 33 applications across the TAMD, D, KAMD and KAD ranges. It is also the alternator the accessories catalogue names for the extra-alternator mounting kits 3583573 and 3884494, neither of which includes an alternator. It replaces 872019, 872235, 3803444 and 873633, some of which earlier records list simply as alternators.

🚤 Compatibility

• Engine Family: TAMD, D, KAMD, KAD
• HP Range: 20-40 HP

Full model list at the end of this description.

⚙️ Key Features

• 14 V, 60 A rating, listed at 12 V/60 A capacity
• Fits D1-20, D1-30, D2-40, D2-55A and D2-75A
• The 12 V alternator called for by mounting kits 3583573 and 3884494
• 5.130 kg
• Replaces 872019, 872235, 3803444 and 873633
• Capacity: 12V/60A
• Fits: D1-20, D1-30, D2-40, D2-55A, D2-75A

🔌 Function

Charges the batteries and supplies the boat's electrical load while the engine is running, driven by the belt from the crankshaft pulley.

⚠️ Common Signs of Failure

• Charge warning lamp staying on or flickering at speed
• Battery going flat over a few days' running
• Belt squeal, belt dust or a glazed belt
• Whining or rumbling from the alternator bearings
• Charging voltage at the battery low, or high enough to boil the electrolyte

🛠️ Service Notes

• Check the belt tension, the main charge cable and the earth strap before condemning the alternator, since volt drop in the cabling gives the same symptoms
• As a second alternator this is fitted with a mounting kit that excludes the alternator, so check whether the brackets and cable kit are on the order too
• Match the system voltage: this is the 12 V unit and 872927 is the 24 V/40 A alternative named in the same kits

🔄 Supersession & Cross Reference

OEM Supersession Chain

• 873770 → Supersedes 3803444 → Supersedes 872019 → Supersedes 872235 → Supersedes 873633 → Supersedes 3803146 → Supersedes 856516 → Supersedes 3803260 → Supersedes 841763 → Supersedes 841766 → Supersedes 841989 → Supersedes 861598 → Supersedes 872926

OEM / Related Numbers

• 872235 earlier number superseded by this part
• 873633 earlier number superseded by this part
• 872019 earlier number superseded by this part
• 3803444 earlier number superseded by this part
• 3803146 earlier number superseded by this part

Other-Brand OEM Numbers

• Valeo: 2541451
• Valeo: 2541827C
• Valeo: 436638
• Valeo: 436676
• Valeo: 439067
• Valeo: 439185

Aftermarket / Verified Equivalents

• Orbitrade: 30770
• Paris Rhone: A13N234
• Paris Rhone: A13N285N

📦 Condition

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

🔎 Full Model Compatibility

Typically suits:

• Volvo Penta TAMD74P-A, TAMD74P-B, TAMD74A, TAMD74C-A, TAMD74C-B, TAMD74L-A, TAMD74L-B
• Volvo Penta D1-30, D1-30B, D1-30F, D1-20, D1-20B, D1-20F
• Volvo Penta D2-40, D2-40B, D2-40F
• Volvo Penta KAD44P, KAD44P-B, KAD44P-C
• Volvo Penta KAMD43P, KAMD43P-A, KAMD43P-B
• Volvo Penta KAMD44P-B, KAMD44P-C, KAMD44P-A
• Volvo Penta KAD300-A
• Volvo Penta KAD32P
• Volvo Penta KAD43P-A
• Volvo Penta KAMD300-A
• Volvo Penta TAMD42WJ-A
• Volvo Penta TAMD72P-A
• Volvo Penta TAMD73P-A
• Volvo Penta TAMD75P-A