New Marine Oil Drive Gear Compatible With 1986-2006 Mercury V6 2.4L 175Hp Chrome Bore 3.375 Outboard

OIL INJECTION PUMP DRIVE GEAR — MERCURY/MARINER V6 OUTBOARDS:

DRIVE GEAR SEGMENT KIT FOR OIL INJECTION PUMP (1986-2010):
Per Crowley Marine and Mercury Marine documentation, OEM 14513A2 / 43-14513A2 is identified as the Drive Gear Segment Kit for the oil injection pump on Mercury V6 2-stroke outboards. This is a critical engine component that drives the oil injection pump — failure causes oil starvation and catastrophic engine damage.

MERCURY V6 2.4L OUTBOARD APPLICATIONS (3.375 CHROME BORE):
• Mercury 175 HP V6 2.4L 3.375 Chrome Bore Outboard (1986-1999)
• Mercury 175 HP V6 2.4L 3.375 Chrome Bore Outboard (2000-2006)

MERCURY V6 2.5L EFI OUTBOARD APPLICATIONS (3.501 BORE):
• Mercury 150 HP V6 2.5L EFI 3.501 Bore Outboard (1992-2010)
• Mercury 200 HP V6 2.5L EFI 3.501 Bore Outboard (1989-2006)

MERCURY V6 2.5L SPORT JET APPLICATIONS:
• Mercury 210 HP V6 2.5L Sport Jet 3.501 Bore (2000-2005)
• Mercury 240 HP V6 2.5L Sport Jet 3.501 Bore (2000-2006)

MARINER V6 OUTBOARD APPLICATIONS:
• Mariner V6 2.4L / 2.5L EFI Models Requiring OEM 14513A2 by Part Number Match
• Mariner Black Max V6 EFI Models

OIL DRIVE GEAR SPECIFICATIONS:
• Type: Oil Injection Pump Drive Gear / Drive Gear Segment Kit
• Material: Steel
• Application: 2-Stroke Oil Injection System Drive
• Engine Compatibility: Mercury V6 2.0L / 2.4L / 2.5L (1986-2010)
• Mercury Mariner Black Max, XR, XR2, EFI, Sport Jet Variants

FUNCTIONAL APPLICATION — OIL INJECTION PUMP DRIVE:
Per Mercury Marine, this is the drive gear that transfers rotational power from the crankshaft to the oil injection pump on Mercury V6 2-stroke outboards. The oil injection pump meters precise quantities of 2-stroke oil into the engine — failure of this drive gear leads to oil starvation, scoring of cylinder walls, piston damage, and complete engine failure. Replacing a worn drive gear is far less expensive than rebuilding a damaged powerhead.

SERVICE WHEN:
• Engine Smoking Excessively or Showing Lean Symptoms
• Oil Injection Warning System Activation
• Powerhead Service / Rebuild
• Routine Inspection Shows Worn Gear Teeth
• Annual Service on High-Hour Mercury V6 Outboards
• Oil Injection Pump Replacement

SUPERSESSION CHAIN:
• Original: 43-14513A2 / 14513A2
• Supersession: 43-14513A09 / 14513A09
• Alternate: 43-14513A3 / 14513A3
• Related: 43-14514A09

FITMENT NOTE:
This is an OEM-spec replacement Oil Injection Pump Drive Gear for Mercury 14513A2 (and supersessions 14513A09, 14513A3). ALWAYS verify the OEM part number from your Mercury service manual or parts diagram before ordering. This drive gear is critical to engine longevity — install correctly during powerhead service or oil pump replacement to ensure proper oil delivery to the powerhead.