Mercury MerCruiser Quicksilver 3.5-Inch Serpentine Belt Idler Pulley 865444T
Free returns on all eligible orders
You have 30 days to request a return. All sale items are final sale.
Product Description
Quicksilver 865444T is a 3.5-inch idler pulley for specified MerCruiser serpentine-belt accessory drives.
Engine Compatibility
Mercury lists applications on V8 engines with 350, 377 and 496 cubic-inch displacement where the accessory-drive diagram specifies this 3.5-inch pulley.
Replacement and Installation
Inspect an idler that has bearing noise, rough rotation, excess play or pulley damage. Check belt condition and adjacent pulleys, then follow the engine-specific routing and fastening instructions.
Parts Desk Insight
Pulley diameter and belt-contact profile both matter. Match 865444T to the exact accessory-drive drawing and compare the removed pulley before installation.
Shipping information
In-stock and OEM parts: ship same or next business day.
Locally warehoused items: ship within 1-3 business days.
Special-order items: timeline confirmed after order.
Returns & warranty
Returns & Satisfaction Guarantee
We stand firmly behind the quality of every product we sell. Your confidence matters to us — and we back it with a straightforward 30-Day Satisfaction Guarantee.
If you are not fully satisfied, you may request a return within 30 days of delivery. All returns must receive pre-approval prior to being sent back. Unauthorized returns will not be accepted.
To qualify for a return:
Item must be in new, unused condition
Product must be in its original packaging
All parts, components, hardware, manuals, and accessories must be included
Packaging must be undamaged and suitable for resale
Important:
Electronics are strictly inspected. No returns on open-box electronics. Exceptions may apply only with prior written approval. Any electronic unit that has been installed, powered, activated, or altered may not be eligible for return.
We are serious about product integrity — and equally serious about taking care of our customers. If there is ever a product issue, contact us immediately so we can make it right.
For return authorization, please contact our support team before shipping anything back.