- Made in the USA
- Guaranteed to fit
- No minimums
- Fast turnaround
Automotive Service
Tapered centering cone (3902/3903/3904 family)
Fits:AMMCO brake lathe (1 in arbor rotor mount)
- Original part #
- 3902 / 3903 / 3904
- Dealer price
- $25-60
$24 Up to 60% less than dealer
Made to order · ships in ~2–3 weeks
- The part the manufacturer stopped making — made new, made to fit.
- Up to 60% less than the dealer price.
- Guaranteed to fit, or your money back — tell us your machine and we confirm fitment first.
- Made in the USA · fast turnaround · no minimums.
- Reorder anytime — we keep your exact part on file, so you never hunt for it again.
Read our fitment guarantee — if the part doesn't fit your machine, return it for a full refund or a corrected part.
More Automotive Service parts we make
Protective spindle boot (accordion dust boot)
Fits: AMMCO 3000/4000/4100/7700 brake lathe
$26
Dealer $31-33
Centering cone spring (self-aligning cone spring)
Fits: AMMCO brake lathe (1 in arbor most models)
$18
Dealer $15-25 (OEM $112.50)
RH negative-rake tool bit / insert holder
Fits: AMMCO 4000/4100/7500/7700 (6950 twin cutter)
$39
Dealer $45-55
Steel spring silencer band assembly (vented 4-spring)
Fits: AMMCO brake lathe (vented rotors multi-brand)
$28
Dealer $25-45/set