In Stock
Inspected & Documented
Condition notes recorded before palletizing.
30-Day Startup Warranty
Covers block, heads and internal moving components.
In Stock & Ready to Freight
Engine Components
Tuff Stuff 7139BBULL 100 Amp Alternator, OEM or 1-Wire, V-Groove Pulley, Polished
€173.91
+ freight from €89.00, insured road freight, priced by delivery region
(rates)
From €262.91 delivered
- ISPM 15 heat-treated Euro palletized & weatherproof shrink-wrapped
- Insured European road freight delivery with hydraulic tail-lift service
- Dispatches in 1–2 business days from our UK & European Logistics Centre
- Transit typically 1–3 business days (UK) / 3–6 business days (Continental Europe)
Need a matched transmission, controls or wiring package? Speak with a parts specialist.
Details & Inspection Notes
The Tuff Stuff Performance 7139BBULL is a new 100-amp alternator in a polished finish with a V-groove pulley, wired for 12-volt, negative-ground systems and set up to connect either with the original OEM wiring or as a 1-wire unit.
Build details
Among this unit's features are heavy-duty, copper-wound coils and diodes resistant to voltage spikes, with charging said to come on at low RPM. Tuff Stuff states these alternators are hand-assembled in Cleveland, Ohio and bench-tested to at least OEM specifications. The case runs 4.85 in. deep, with a lower mount boss 2 in. long.
Fitment to confirm
Tuff Stuff's published list for this part spans 1968 through 1987 for Buick, Chevy, GMC, Olds and Pontiac models, and separately takes in 1980-1982 Jeeps running the 4.2L six (258). Specific cases called out are a 1987 Buick Regal and a Chevrolet Monte Carlo of the same year with the 3.8L V6 (231), plus a 1987 Oldsmobile Cutlass running the 5.0L V8 (305). Falling inside that date range alone isn't proof of fit; cross-check the specific year, model and engine combination against Tuff Stuff's list before ordering.
Condition
This is a new unit, made from 100% new components, and it carries a one-year limited warranty.
Startup & Installation Checklist
- Inspect all external gaskets, seals, spark plugs and timing components prior to installation.
- Refill engine oil, transmission gear oil and coolant to manufacturer-specified capacities before initial cranking.
- Prime the lubrication system and verify ECU wiring pinouts, sensors, and ground connections.
- Startup warranty covers internal lubricated components, cylinder heads, and engine block for 30 days from delivery.
Full terms: 30-day startup warranty · returns
