Availability
OLDSMOBILE Tuff Stuff Performance Ignitions & Electrical
Alternator, Polished, 100 Amps, V-Belt, Buick, Chevy, GMC, Oldsmobile, Pontiac, Each
Part Number: TFF-7139BBULL
Estimated Ship Date: May 14, 2026 if ordered today
Estimated Ship Date: May 14, 2026 if ordered today
Need It Sooner? We recommend these similar substitute parts:
Tuff Stuff Performance High-Amp Output Factory Cast-Plus Alternators 7127D12
Estimated Ship Date: Monday 2/16/2026
Alternator, KoolCharger 160 amp, Natural As Cast, 1-wire or OEM Hookup 6 Groove Serpentine, Center Offset, Chevy, GMC, Each
Part Number: TFF-7866K-16G
Not Yet Reviewed
Estimated Ship Date: May 14, 2026 if ordered today
Estimated Ship Date: May 14, 2026 if ordered today
Alternator, Performance, High Amp, GM 10si Case Style, 12 V, 140 Amps, Polished, V-Belt Pulley, Each
Part Number: TFF-7127NKP6
Not Yet Reviewed
Estimated Ship Date: May 14, 2026 if ordered today
Estimated Ship Date: May 14, 2026 if ordered today
Alternators and Generators, High-Amp Output Alternators, GM 10si Case Style, 12 V, 140 amps, Polished, Serpentine Pulley, Buick, Chevy, GMC, Jeep
Part Number: TFF-7127NKP6G
Estimated Ship Date: Monday 2/16/2026 if shipped by air
Estimated Ship Date: Monday 2/16/2026 if shipped by air
Alternator, Performance, Silver Bullet, High Amp, GM 10si Case Style, 12 V, 140 Amps, Black Powdercoated, V-Belt Pulley, Each
Part Number: TFF-7140FBULL9
Estimated Ship Date: May 14, 2026 if ordered today
Estimated Ship Date: May 14, 2026 if ordered today
Alternator, Performance, High Amp, GM 10si Case Style, 12 V, 100 Amps, Polished, Serpentine Pulley, Each
Part Number: TFF-7127NDP6G12
Not Yet Reviewed
Estimated Ship Date: May 14, 2026 if ordered today
Estimated Ship Date: May 14, 2026 if ordered today
Alternator, 65 Amp, Replacement, V-Belt, Chrome, Buick, Cadillac, Chevy, GMC, Oldsmobile, Pontiac, Each
Part Number: TFF-7127NJ
Not Yet Reviewed
Estimated Ship Date: May 14, 2026 if ordered today
Estimated Ship Date: May 14, 2026 if ordered today
Alternator, KoolCharger 160 amp, Black, 1-wire or OEM Hookup 6 Groove Serpentine, Right Offset, Chevy, GMC, Each
Part Number: TFF-7860G6G
Not Yet Reviewed
Estimated Ship Date: Monday 2/16/2026 if shipped by air
Estimated Ship Date: Monday 2/16/2026 if shipped by air
Alternator, Performance, High Amp, GM 10si Case Style, 12 V, 100 Amps, Chrome, V-Belt Pulley, Each
Part Number: TFF-7127ND6
Not Yet Reviewed
Estimated Ship Date: May 14, 2026 if ordered today
Estimated Ship Date: May 14, 2026 if ordered today
Alternators and Generators, Silver Bullet Alternators, GM 10si Case Style, 12 V, 100 amps, Polished, V-belt Pulley, AMC, Buick, Chevy, GMC, Jeep, Olds
Part Number: TFF-7139BBULL9
Estimated Ship Date: May 14, 2026 if ordered today
Estimated Ship Date: May 14, 2026 if ordered today
Alternator, Chrome, 80 Amps, Serpentine, Buick, Chevy, GMC, Oldsmobile, Pontiac, Each
Part Number: TFF-7127NB6G
Not Yet Reviewed
Estimated Ship Date: May 14, 2026 if ordered today
Estimated Ship Date: May 14, 2026 if ordered today
Alternator, Performance, High Amp, GM 10si Case Style, 12 V, 100 Amps, Gray Powdercoated, V-belt Pulley, Each
Part Number: TFF-7127RATGRAY
Estimated Ship Date: May 14, 2026 if ordered today
Estimated Ship Date: May 14, 2026 if ordered today
Alternator, Performance, High Amp, GM 10si Case Style, 12 V, 100 Amps, Chrome, V-Belt, Each
Part Number: TFF-7127ND9
Not Yet Reviewed
Estimated Ship Date: May 14, 2026 if ordered today
Estimated Ship Date: May 14, 2026 if ordered today
Alternator, Performance, High Amp, GM 10si Case Style, 12 V, 100 Amps, Polished, V-Belt, Each
Part Number: TFF-7127NDP9
Estimated Ship Date: May 14, 2026 if ordered today
Estimated Ship Date: May 14, 2026 if ordered today
Alternator, Performance, High Amp, GM 10si Case Style, 12 V, 100 Amps, Polished, V-Belt Pulley, Each
Part Number: TFF-7127NDP12
Not Yet Reviewed
Estimated Ship Date: May 14, 2026 if ordered today
Estimated Ship Date: May 14, 2026 if ordered today
Alternator, Performance, Silver Bullet, High Amp, GM 10si Case Style, 12 V, 100 Amps, Natural, V-Belt, Each
Part Number: TFF-7127DBULL
Estimated Ship Date: Monday 2/16/2026 if shipped by air
Estimated Ship Date: Monday 2/16/2026 if shipped by air
Alternator, Performance, High Amp, GM 10si Case Style, 12 V, 100 Amps, Black Powdercoated, Serpentine Pulley, Each
Part Number: TFF-7127NF6G12
Not Yet Reviewed
Estimated Ship Date: Monday 2/16/2026 if shipped by air
Estimated Ship Date: Monday 2/16/2026 if shipped by air
Alternator, Performance, Silver Bullet, High Amp, GM 10si Case Style, 12 V, 140 Amps, Chrome, V-Belt Pulley, Each
Part Number: TFF-7140ABULL12
Not Yet Reviewed
Estimated Ship Date: May 14, 2026 if ordered today
Estimated Ship Date: May 14, 2026 if ordered today
Alternator, Performance, Silver Bullet, High Amp, GM 10si Case Style, 12 V, 140 Amps, Chrome, V-Belt Pulley, Each
Part Number: TFF-7140ABULL6
Not Yet Reviewed
Estimated Ship Date: May 14, 2026 if ordered today
Estimated Ship Date: May 14, 2026 if ordered today
Alternator, Performance, Silver Bullet, High Amp, GM 10si Case Style, 12 V, 140 Amps, Polished, V-Belt Pulley, Each
Part Number: TFF-7140BBULL12
Estimated Ship Date: May 14, 2026 if ordered today
Estimated Ship Date: May 14, 2026 if ordered today
Alternators, Silver Bullet Stealth Black, GM 10SI/10DN/12SI, 12 V, 140 amps, Serpentine Pulley, AMC, Buick, Chevy, GMC, Jeep, Olds, Pontiac, Each
Part Number: TFF-7140FBUL6G12
Not Yet Reviewed
Estimated Ship Date: May 14, 2026 if ordered today
Estimated Ship Date: May 14, 2026 if ordered today
Alternator, Performance, Silver Bullet, High Amp, GM 10si Case Style, 12 V, 140 Amps, Black Powdercoated, V-Belt Pulley, Each
Part Number: TFF-7140FBULL6
Not Yet Reviewed
Estimated Ship Date: May 14, 2026 if ordered today
Estimated Ship Date: May 14, 2026 if ordered today
Alternator, Performance, Kool-Charger, High Amp, GM CS130 Case Style, 12 V, 105 Amps, Natural, Center Offset, Serpentine Pulley, Each
Part Number: TFF-7866-16G
Not Yet Reviewed
Estimated Ship Date: May 14, 2026 if ordered today
Estimated Ship Date: May 14, 2026 if ordered today
Alternator, 140 Amp, Replacement, V-Belt, Black Chrome, Buick, Cadillac, Chevy, GMC, Oldsmobile, Pontiac, Each
Part Number: TFF-7127NK7
Estimated Ship Date: May 14, 2026 if ordered today
Estimated Ship Date: May 14, 2026 if ordered today
Alternator, Performance, High Amp, GM 10si Case Style, 12 V, 140 Amps, Chrome, V-Belt, Each
Part Number: TFF-7127NK9
Not Yet Reviewed
Estimated Ship Date: May 14, 2026 if ordered today
Estimated Ship Date: May 14, 2026 if ordered today
Truck / SUV
Jeep®
Restoration
Stock Replacement
Late Model Muscle
Tools
Gifts, Clothing, & More
Circle Track
Street Rod
Powersports
Paint & Body
Marine
Jr Dragster