AMMCO 3 Arm Red Knob: Knob, 4000E/4000SPl 4000/4100B/Ammco Brake Lathes
The AMMCO 3 Arm Red Knob is a replacement knob for AMMCO brake lathes, compatible with models 4000E, 4000SPl, 4000, and 4100B. It is identified by manufacturer part number 3540 and Grainger part number 33K080, and is…
SKU 3G-OTH-484545
Need installation or engineering help?
Ask a question
Product Description
The AMMCO 3 Arm Red Knob is a replacement knob for AMMCO brake lathes, compatible with models 4000E, 4000SPl, 4000, and 4100B. It is identified by manufacturer part number 3540 and Grainger part number 33K080, and is classified under product types 33K078, 33K079, and 33K080.
Supplied to the Philippines — compatible with 60 Hz installations. DHL Express delivery to Manila, Quezon City, Cebu, customs and duties handled door-to-door.
Frequently Asked Questions
What is the AMMCO 3 Arm Red Knob used for?
The AMMCO 3 Arm Red Knob is a replacement knob for AMMCO brake lathes, specifically models 4000E, 4000SPl, 4000, and 4100B. It is used to adjust or secure the three-arm setup during brake rotor resurfacing, ensuring precise machining in automotive repair shops.
What are the specifications of the AMMCO 3 Arm Red Knob?
The AMMCO 3 Arm Red Knob has manufacturer part number 3540 and is compatible with Grainger part number 33K080. It fits AMMCO brake lathe models 4000E, 4000SPl, 4000, and 4100B, and is classified under product types 33K078, 33K079, and 33K080.
Where to buy the AMMCO 3 Arm Red Knob worldwide?
3G Electric supplies the AMMCO 3 Arm Red Knob worldwide. As a global industrial solutions provider, we handle full logistics and customs clearance to deliver this replacement knob for AMMCO brake lathes to any location. Contact us for availability and lead time.
How to install the AMMCO 3 Arm Red Knob on a brake lathe?
To install the AMMCO 3 Arm Red Knob, first ensure the brake lathe is powered off. Remove the old knob by unscrewing it from the three-arm assembly. Align the new knob with the threaded shaft and hand-tighten securely. Verify smooth rotation before resuming operation.
AMMCO Products
3G Electric supplies AMMCO wheel balancing machine accessories. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

