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OEM numbers, and community knowledge...
Dusting off the service manual...
💡 This page improves over time as the community adds casting photos and confirms fitment
Harmonic Balancer/Crank Pulley
This usually takes 5-15 seconds. We're pulling together fitment data,
OEM numbers, and community knowledge...
Dusting off the service manual...
💡 This page improves over time as the community adds casting photos and confirms fitment
Wiki page
5L V8 Naturally Aspirated Coyote V8 (435hp).
Quick reference
Verify the mounting bracket differences between model years or variants.
Check for any mid-cycle changes that might affect part compatibility.
Context
When replacing the harmonic balancer/crank pulley on a 2018 Ford Mustang with a 435HP Coyote V8 engine, it's critical to use the correct part number, such as Ford OEM M-6C3Z-6F232-AB or an alternate like C8TZ-6F232-AB. This ensures exact fitment and performance. Interchangeability is good across 2015-2020 Mustang models with the same 5L V8 engine, but always check the mounting bracket compatibility. During installation, inspect the pulley for any signs of damage and ensure the crankshaft is correctly aligned before torqueing the bolts. Common failures include cracks or leaks, so a thorough visual inspection is essential before and after installation.
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Confirmed fitment
| Year | Make | Model | Engine | Confidence |
|---|---|---|---|---|
| 2018 | Ford | Mustang | 5L V8 Naturally Aspirated Coyote V8 (435hp) | 80% |
Available parts

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