21243814 Companion Flange | Genuine Volvo Penta Part

🔧 Product Description

Genuine Volvo Penta D12 Crankshaft Companion Flange - Part Number: 21243814

A crankshaft or timing-gear companion flange used on selected D12, TAD12 and TWD12 engines. It is also required when converting from timing cover 3835799 to the later cover arrangement.

⚙️ Key Features

• Genuine Volvo Penta component

• Precision-machined crankshaft interface

• Required with the specified timing-cover conversion

• Transfers drive or locates front timing components

• Direct replacement where part number 21243814 is specified

🔄 Supersession & Cross Reference

OEM Supersession Chain:

• 21243814 (current catalogued companion flange)

OEM / Related Numbers:

• Timing-cover conversion contents: 1 × 21122283 Timing Gear Cover

• 1 × 21243814 Companion Flange

• 2 × 3595265 Screw

• 3835799 - earlier timing cover

Aftermarket / Verified Equivalents:

• No aftermarket equivalent

🚤 Compatibility

Commonly used on:

• Volvo Penta D12, TAD12 and TWD12 crankshaft and timing-gear systems

Typically suits:

• Engine models:

• D12C-A

• D12D-A/C/D/E

• TAD1240VE

• TAD1241VE

• TAD1242VE

• TAD1250VE

• TAD1251VE

• TAD1252VE

• TWD1240VE

• HP Range: Engine-rating dependent

• Engine Type: 12-litre inline-six turbocharged diesel

• Year Range: Timing-cover and serial-number dependent

🔌 Function

Locates and connects the crankshaft to the associated front timing or drive components.

Common signs of failure:

• Fretting or movement at the crankshaft interface

• Cracks or damaged keying

• Oil leakage from the timing-cover area

• Pulley or drive misalignment

• Abnormal front-engine vibration

📦 Condition

• Genuine Volvo Penta part

• Brand new

• Supplied in original or equivalent packaging