OEM Mercury MerCruiser 4.5L MPI V6 Idler Tensioner Pulley Assembly P/N 865777
Genuine OEM Mercury MerCruiser idler tensioner pulley assembly, Part Number 865777, removed from a MerCruiser 4.5L MPI V6 (200 HP) sterndrive engine.
This complete factory assembly includes the idler pulley, integrated bearing, and mounting base exactly as shown. It is designed to maintain proper serpentine belt alignment and tension, ensuring reliable operation of the engine's accessory drive system.
An excellent replacement for a worn, noisy, or damaged original idler tensioner assembly.
The assembly is in good used condition with normal signs of previous marine use, including light scratches, minor cosmetic wear, and slight surface oxidation around the bearing area. The pulley spins freely by hand. Please review all photos carefully for overall condition. Sold exactly as pictured.
Features & Highlights:
- Genuine OEM Mercury MerCruiser Component
- Part Number: 865777
- Fits MerCruiser 4.5L MPI V6 (200 HP) Engines
- Complete Idler Tensioner Pulley Assembly
- Factory Idler Pulley Included
- Integrated Bearing
- Mounting Base Included
- Maintains Proper Serpentine Belt Alignment
- Direct OEM Replacement
- Sold Exactly As Pictured
Condition Details:
This is a used OEM idler tensioner pulley assembly removed from a freshwater MerCruiser engine. It shows normal cosmetic wear including light scratches, minor scuffs, and slight surface oxidation around the bearing area consistent with previous marine use. The pulley spins freely by hand. No visible cracks or damage were observed. Buyer should verify compatibility using their engine serial number and part number before purchasing.
Dealer Sale – Sunset Marine TX LLC
SKU: 10534