The ARP Harmonic Balancer Bolt is a chromoly fastener finished in black oxide with a 12-point head and an included washer, designed to secure the harmonic balancer on Ford 4.6L Modular engines.
Specifications:
- 12 mm x 1.50 in Thread
- 1.800 in Long
- 18 mm 12-Point Head
- Washer Included
- Chromoly
- Black Oxide finish
- Each
Applications:
- Ford 4.6L Modular
FAQ
What does the ARP 156-2501 Balancer Bolt include?
This is a single chromoly harmonic balancer bolt sized 12 mm x 1.50 thread and 1.800 in long, with an 18 mm 12-point head, black oxide finish, and included washer.
What material and finish is the bolt?
The bolt is made from chromoly steel and finished in black oxide for corrosion resistance and durability.
Which engines is the 156-2501 bolt designed for?
This bolt is designed for Ford 4.6L Modular engines.

