Skip to product information
Usually ships in 2–4 business days.
864625T Serpentine Belt Idler Pulley for MerCruiser 4.3L 5.0L 5.7L 6.2L
$80.29
Sale price
$80.29
Regular price
Available to Order
This Serpentine Belt Idler Pulley is a belt tensioner idler pulley compatible with MerCruiser 4.3L, 5.0L, 5.7L, and 6.2L engines and matches OEM Part# 864625T.
Need help finding the right part? Talk with a parts expert today.
Parts Support Hours: Monday–Friday, 8:00 AM–5:00 PM CT
Live Chat: Available 24/7
I needed a forklift part and wasn’t sure which one fit. They asked for the model and serial number, got back to me quickly, and made sure I ordered the right one. Really helpful.
Randy W. — Verified customer
Product Overview
This Serpentine Belt Idler Pulley is a belt tensioner idler pulley compatible with MerCruiser 4.3L, 5.0L, 5.7L, and 6.2L engines and matches OEM Part# 864625T.
Product Overview
Key Features & Performance
- Direct replacement for OEM idler pulley on MerCruiser engines
- Precision bearing for smooth belt operation
- Rugged construction to withstand engine heat and vibration
- Restores proper serpentine belt tension
- Easy bolt-on installation
Fitment & Compatibility
- MerCruiser 4.3L engines
- MerCruiser 5.0L engines
- MerCruiser 5.7L engines
- MerCruiser 6.2L engines
- Replaces OEM part number 864625T
Common Uses
- Replacing worn or noisy idler pulley
- Maintaining proper serpentine belt alignment and tension
- Preventing belt squeal and premature belt wear
- Restoring accessory drive system performance
Technical Specifications
- Part Number(s): 864625T
- Compatible Engines: MerCruiser 4.3L, 5.0L, 5.7L, 6.2L
Frequently Asked Questions
Q: Is this idler pulley a direct replacement for OEM part 864625T? A: Yes, this pulley is an exact OEM replacement for part number 864625T, ensuring a perfect fit and reliable performance.
Q: Will this pulley fit my MerCruiser 5.0L engine? A: Yes, it is specifically designed for MerCruiser 4.3L, 5.0L, 5.7L, and 6.2L engines, including your 5.0L.
Product appearance and specifications may vary slightly by batch. Compatibility may vary by serial number. Verify fitment before purchase.