• 858579T3 Mercury Oil Pump | Genuine Used Part
  • 858579T3 Mercury Oil Pump | Genuine Used Part - photo 2 of 2
1 2

858579T3 Mercury Oil Pump | Genuine Used Part

858579T3 Mercury Oil Pump | Genuine Used Part

$180.00 AUD
$180.00 AUD
Sale Sold out
Shipping calculated at checkout.

Low stock: 1 left

✓ Authorised Volvo Penta Dealer · Genuine used marine parts · Ships Australia-wide

🔧 Product Description

Genuine Mercury Mariner 75HP-115HP Four-Stroke Engine Oil Pump - Part Number: 858579T3

A genuine used Mercury / Mariner engine-oil pump for Yamaha-derived 75HP to 115HP four-stroke outboard motors.

The T3 pump is the improved service version with a revised seal. Mercury's service bulletin specifies 858579T3 as the replacement for pumps 858579, 858579T1 and 858579T2.

⚙️ Key Features

  • Genuine used Mercury Marine oil pump
  • Current improved part number 858579T3
  • Supersedes 858579, 858579T1 and 858579T2
  • Yamaha equivalent 67F-13300-10-00
  • Used on selected 75HP-115HP four-stroke outboards

🚤 Compatibility

Compatible Mercury / Mariner groups include

  • 75HP carburetted four-stroke: 0G960500-1B226999
  • 75HP EFI: 1B172291-1B366822
  • 80HP EFI: 1B227000-1B366822
  • 90HP carburetted four-stroke: 0G960500-1B226999
  • 90HP EFI: 1B172291-1B366822
  • 100HP EFI: 1B227000-1B366822
  • 115HP EFI: 0T178500-1B366822
  • Yamaha F75, F80, F90, F100 and F115 applications using the 67F pump family

Mercury service-bulletin serial range

  • 2001-2002 75HP, 90HP and 115HP four-strokes: 0T379461-0T449224
  • The bulletin requires the improved T3 pump unless an updated green-dot / date-code pump is already fitted
  • Engine Type: Yamaha-derived inline four-cylinder four-stroke outboard
  • Production Range: Mercury applications approximately 1999-2006

🔌 Function

The pump draws oil from the sump and circulates it through the filter, bearings, valve train and other lubrication galleries.

⚠️ Common Signs of Failure

  • Low oil pressure
  • Pump seal becomes displaced
  • Oil pressure warning activates
  • Engine develops bearing or valve-train noise
  • Pump loses prime
  • Oil leakage occurs at the pump seals
  • Internal wear reduces flow

🔄 Supersession & Cross Reference

OEM Supersession Chain

  • 858579T3 → Supersedes 858579T2
  • 858579T2 → Supersedes 858579T1 and 858579
  • Yamaha 67F-13300-10-00 is the current verified other-brand equivalent
  • Earlier Yamaha references include 67F-13300-00-00, -01-00, -02-00 and -03-00

OEM / Related Numbers

  • 858579T3
  • 858579T2
  • 858579T1
  • 858579
  • Yamaha 67F-13300-10-00
  • Yamaha 67F-13300-03-00
  • Yamaha 67F-13300-02-00
  • Yamaha 67F-13300-01-00
  • Yamaha 67F-13300-00-00
  • 27-858732-1 related powerhead gasket
  • 25-858581 related oil-pump O-rings

Aftermarket / Verified Equivalents

  • Yamaha: 67F-13300-10-00 - direct OEM equivalent
  • No verified independent aftermarket equivalent

📦 Condition

  • Inspect for the improved T3 identification and green-dot marking
  • Powerhead gasket and pump O-rings should be renewed during installation
  • Genuine used part
  • Removed from running engine where applicable
  • In good working condition unless otherwise stated

Shipping & Delivery

Flat-rate shipping Australia-wide — $14.99 per order, no matter how many parts you add. Orders dispatch from our Kadina, South Australia store. Need it urgently or want to collect in person? Call us on 0412 532 984 before ordering.

Returns & Warranty

14-day change-of-mind returns — if it's not right or you ordered the wrong part, send it back within 14 days in the condition you received it for a refund or exchange. Full details in our Refunds & Returns policy.

Not sure this fits?

Ask us before you buy — we check part numbers and fitment every day. Call 0412 532 984 (Mon–Fri 8.30am–4.30pm) or message us through the contact page with your engine or vehicle details.

View full details