1556635 Gear | Genuine Volvo Penta Part

🔧 Product Description

This genuine Volvo Penta gear is a centred rotating-drive or coupling component used in the timing or auxiliary gear train. It is manufactured to the original Volvo Penta dimensions and interface requirements so the driven component remains concentric, aligned and securely coupled. In service, it transfers drive through the engine gear train; the gear is nitrocarburised for wear resistance. Fitment is controlled by the exact engine or product configuration and serialised parts list; confirm OEM number 1556635 against the installed assembly before ordering.

🚤 Compatibility

Typically suits:

• Volvo Penta TD164KAE
• Volvo Penta TAD1631GE
• Volvo Penta TAMD163P-A
• Volvo Penta TAMD165A
• Volvo Penta TAMD165C
• Volvo Penta TAMD165P
• Volvo Penta TAD1631G

• Engine Family: TD, TAD, TAMD

⚙️ Key Features

• OEM Volvo Penta part number 1556635
• System group: Engine
• Net weight: 3.01 kg
• Fits TAMD163, TAMD165, TD164 and TAD1631 series diesel engines
• Supplied as an individual gear component

🔌 Function

The gear transfers rotational drive and torque between shafts inside the engine's geartrain, keeping driven components turning in the correct ratio and phase with the crankshaft. Correct tooth engagement and backlash are essential to maintain timing accuracy and smooth power transfer.

⚠️ Common Signs of Failure

• Whining, growling or rhythmic noise from the geartrain that changes with engine speed
• Visibly worn, chipped or pitted gear teeth on inspection
• Excessive backlash or play between meshing gears
• Metal particles or bright flakes found in the engine oil or filter
• Timing drift or rough running caused by uneven gear engagement

🛠️ Service Notes

• Inspect the mating gear as well as the one being renewed; a chipped or worn tooth on the partner will quickly ruin a new gear, so change them as a pair where the wear is shared
• Check the shaft, bush or bearing the gear runs on for wear and scoring before assembly and renew anything that is not to size
• Fit the gear square and press it home rather than driving it with hammer blows, which spread the bore and mark the teeth
• Oil the teeth and bearing surfaces on assembly so the gear is not run up dry on first start
• Where the workshop manual for your engine gives backlash, end float or timing settings for the gear, set and check them to those figures rather than by feel

📦 Condition

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