OTC 4531 Harmonic Balancer Puller Installer Set, Steel Adapter Kit for Crankshaft Pulleys
- The OTC 4531 Harmonic Balancer Puller Installer Set is designed for removing and installing harmonic balancers and drive pulleys that are press-fitted onto crankshafts. It includes a heavy-duty forcing screw and a complete range of metric and fractional adapters for broad engine coverage.
- Features:
- 2/3-way puller flange supports bolt circles from 2 ½ inches to 4 ¼ inches for versatile use across multiple applications
- ¾-inch diameter forcing screw is internally threaded to accept eight included adapters for varied configurations
- Comprehensive metric and fractional adapter set includes M16 x 2.0, M14 x 1.5, M12 x 1.5, ½-20, 7/16-20, ¾-16, 5/8-18, and 9/16-18 sizes
- Blow-molded plastic storage case keeps components organized and secure for transport and shop use
- Includes:
- Puller flange, bearing-centered 2/3-way design
- ¾-inch diameter forcing screw, internally threaded
- Eight threaded adapters (M16 x 2.0, M14 x 1.5, M12 x 1.5, ½-20, 7/16-20, ¾-16, 5/8-18, 9/16-18)
- Assorted bolts and washers for puller mounting
- Blow-molded plastic storage case
- Specifications:
- Manufacturer: OTC (Bosch Automotive Service Solutions)
- Part Number: 4531
- Material: Steel (puller flange and adapters) and plastic (storage case)
- Adapter Sizes Supported: M16 x 2.0, M14 x 1.5, M12 x 1.5, ½-20, 7/16-20, ¾-16, 5/8-18, 9/16-18
- Bolt Circle Range: 2 ½ inches to 4 ¼ inches
- Applications: Suitable for removal and installation of harmonic balancers and crankshaft pulleys on engines with press-fit configurations
OTC, part of Bosch Automotive Service Solutions, developed the 4531 Harmonic Balancer Puller Installer Set to provide reliable service for press-fit pulley and balancer applications. Its balanced puller flange, heavy-duty forcing screw, and wide adapter selection make it an essential tool for professional engine maintenance.
Q: What size adapter threads are included?
A: The kit includes adapters in M16 x 2.0, M14 x 1.5, M12 x 1.5, ½-20, 7/16-20, ¾-16, 5/8-18, and 9/16-18 thread sizes.
Q: What bolt circle range does it cover?
A: The puller flange covers bolt circles ranging from 2 ½ inches to 4 ¼ inches.
Q: Does the kit include a case?
A: Yes. A blow-molded plastic storage case is included for secure organization of all parts.
