S85 Engine

S85 Engine for Sale at Reliable Used Part

Need an S85 Engine for a repair, replacement, or rebuild? Reliable Used Part lists options for BMW M5 and M6 for model years 2005–2010, giving you a practical way to source a used engine without paying new-part prices. Explore our full used engine inventory or ask our team to confirm the details for your vehicle.

Current options at Reliable Used Part for this engine are listed in the $8,000–$16,000 range. The final price depends on the specific unit and the option you select, so contact our team to confirm availability, condition, included components, and delivery details before placing your order. Ask us about current S85 Engine stock if you do not see the exact option you need.

What Is the S85 Engine?

The S85 Engine is BMW’s 5.0-liter V10 used in the E60 M5 and E63 M6.

Before you buy, make sure it matches your vehicle’s exact configuration, not just its model name. If you want a refresher on how this component works, read the Wikipedia overview of the internal combustion engine.

S85 Engine Compatibility and Fitment

The S85 Engine listing is intended for BMW M5 and M6 for model years 2005–2010. Exact compatibility depends on the model year, trim, engine, and drivetrain, so verify fitment before ordering. A properly matched S85 Engine helps your vehicle run smoothly after installation.

• Models: M5 and M6
• Model years: 2005–2010
• Engine and transmission options: 5.0L V10 S85

How to Confirm Fitment Before You Buy

A few minutes of checking can save you a return. Before you order, confirm the following:

• Match the engine code, or the eighth character of your VIN, with the engine options listed for your vehicle.
• Confirm the model year, trim, displacement, and fuel type (gasoline, diesel, or hybrid).
• Note features that affect compatibility, such as turbocharging, direct injection, or variable valve timing.
• Check whether you also need related components such as the intake, wiring harness, sensors, or ECU.
• Ask our team to confirm availability, included components, and condition details before you order.

You can decode your VIN with the NHTSA VIN decoder and check for open safety recalls on the NHTSA recalls page before you start a major repair.

Signs You May Need a Replacement Engine

These common symptoms may mean it is time to look at a replacement engine:

• Persistent knocking, ticking, or tapping noises from inside the engine
• Excessive oil consumption, oil leaks, or blue smoke from the exhaust
• Repeated overheating or coolant loss without an external leak
• Rough running, misfires, or low compression on one or more cylinders
• Metal particles in the oil, or a check engine light that returns after repairs

These symptoms can point to serious internal wear, but smaller faults can cause them too, so have a qualified technician diagnose the vehicle before you commit to a replacement.

Why Buy a Used Engine from Reliable Used Part?

Reliable Used Part helps drivers and shops across the United States source used engines at practical prices. Our team can review your VIN, confirm S85 Engine fitment, and explain warranty terms before you order. Nationwide USA shipping is available, so contact Reliable Used Part for a quote and delivery estimate. Compare every S85 Engine option carefully before you decide.

Working on more than one component? You may also want to look at our BMW M5 Engine, BMW M4 Engine and BMW S65 Engine, or browse the full used engine inventory. You can also see all BMW used engine listings.

S85 Engine FAQs