11127857 Gear | Genuine Volvo Penta Part

🔧 Product Description

This is a genuine Volvo Penta gear from the fuel system group, supplied under part number 11127857. It is the specified component for the TAD1170-72VE engine series, where it forms part of the fuel system drive arrangement. Ordering by this number ensures the correct tooth profile and dimensions for that application.

🚤 Compatibility

Typically suits:

• Volvo Penta TAD1170-72VE

• Engine Family: TAD
• HP Range: Approximately 300-550 HP
• Year Range: Approximately 2000s - 2010s

⚙️ Key Features

• OEM Volvo Penta part number 11127857
• System group: Fuel System
• Fits TAD1170 to TAD1172VE series engines
• Supplied as a single gear component
• Direct replacement for the original factory-fitted item
• Engine type: Volvo Penta inline 6-cylinder 11-litre industrial diesel

🔌 Function

The gear transmits rotational drive within the engine's fuel system, keeping fuel delivery timed and synchronised with engine rotation. Correct gear condition and mesh are essential for stable fuel pressure and injection timing.

⚠️ Common Signs of Failure

• Whining, growling or rattling noise that changes with engine speed
• Visible tooth wear, chipping or pitting on the gear face
• Excessive backlash or play when the gear is checked by hand
• Erratic fuel delivery or timing drift caused by worn tooth profiles
• Metal debris or fine swarf found in oil or on filters

🛠️ 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

🔄 Supersession & Cross Reference

OEM / Related Numbers

• 11127858 - Related shaft
• 11127950 - Related pump-drive gear
• 17463337 - Related early PTO housing
• 15115957 - Related early PTO housing
• 17488934 - Related later transmission housing
• 183408 - Related bearings
• 19283 - Related bearings
• 4770431 - Related lower-PTO gear
• 11030368 - Related spacer ring

Aftermarket / Verified Equivalents

• SLP: GBG-857

📦 Condition

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