BUICK Charging Systems

Wiring Harness Adapter, GM 10SI Wiring to CS121, CS130, CS144 Alternator, w/out Alt Warn Light - GM 12102921 1988-95, Each

Part Number: PCO-5327PT

5.0 out of 5 stars ( 12 )

Estimated Ship Date: Monday 2/2/2026

Alternator, Smooth Look, Polished, 100 Amp, 12v, GM 12si, V-Belt Pulley, Each

Part Number: PWM-27297

5.0 out of 5 stars ( 3 )

Estimated Ship Date: Monday 2/2/2026

• Free Shipping

Voltage Regulator, 12 V, Steel, Black, AMC, Buick, Cadillac, Chevy, GMC, International, Jeep, Oldsmobile, Pontiac, Rover, Each

Part Number: ADO-C635

2.86 out of 5 stars ( 7 )

Estimated Ship Date: Monday 2/2/2026

Alternator, Internal Regulator, 60 Amp, Chrome Plated, Chevy, GMC, Each

Part Number: PRO-66445-6N

5.0 out of 5 stars ( 6 )

Estimated Ship Date: Monday 2/2/2026

• Free Shipping

Alternator, Chrome, 160 Amps, Serpentine, Center Offset, Chevy, Pontiac, Each

Part Number: TFF-7866ABULL6G

4.67 out of 5 stars ( 6 )

Estimated Ship Date: Monday 2/2/2026

• Free Shipping

Alternator and Generators, Ultra Series, GM 10SI, Alternator, 140 amp, 12V, Single Wire, Polished Finish, Buick, Chevy, GMC, Oldsmobile, Pontiac, Each

Part Number: MCH-P2556-05

3.0 out of 5 stars ( 2 )

Estimated Ship Date: Monday 2/2/2026

• Free Shipping

Alternator, Internal Regulator, 100 Amp, Polished, AMC, Buick, Oldsmobile, Pontiac, Chevy, GMC, Each

Part Number: PWM-27294-367

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Monday 2/2/2026

• Free Shipping

Battery, Mega-Tron Plus, 12 V, Starting, 700 Cold Cranking Amps, Top Posts, Each

Part Number: ISB-MTP-24

5.0 out of 5 stars ( 2 )

• Core Charge $18.00
• Restricted
• Free Shipping

Alternator, Street Alternator, GM 10SI/10DN/12SI Case Style, 12V, 150 amps, Chrome, V-Belt Pulley, Each

Part Number: PWM-37293-344

3.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 2/2/2026

• Free Shipping

Alternator, E Series, 12 V, 370 amps, Billet Aluminum, Red Anodized, Serpentine, Buick, Cadillac, Chevy, GMC, Hummer, Oldsmobile, Each

Part Number: MEH-B8206370RD

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 2/2/2026

• Free Shipping

Bearing, Alternator and Generator End Bearing, Clutch Pilot Bearing, Power Steering Pump Bearing, Each

Part Number: TMK-203FF

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 2/2/2026

Alternator; 10si; 100 Amp; w/1 V-Belt Pulley; Chrome

Part Number: PWM-37127

4.5 out of 5 stars ( 6 )

Estimated Ship Date: Monday 2/2/2026

• Free Shipping

Alternator, Internal Regulator, 63 Amp, Chrome Plated, Buick, Oldsmobile, Pontiac, Chevy, GMC, Each

Part Number: SUM-G1666

4.83 out of 5 stars ( 6 )

Estimated Ship Date: Monday 2/2/2026

• Free Shipping

Alternator, 140 Amp, 1-Wire, Chrome, V-Belt, Buick, Chevy, Oldsmobile, Pontiac, Each

Part Number: TFF-7140ABULL

5.0 out of 5 stars ( 16 )

Estimated Ship Date: Monday 2/2/2026

• Free Shipping

Alternator, Chrome, V-Belt, 50 Amp, Nippondenso, 1-Wire, Each

Part Number: PRO-66431

Not Yet Reviewed

Estimated Ship Date: Monday 2/2/2026

• Free Shipping

Alternator, Internal Regulator, 150 Amp, Double V-Belt Pulley, Natural, Buick, Oldsmobile, Pontiac, Chevy, GMC, Each

Part Number: PWM-47294-2

Not Yet Reviewed

Estimated Ship Date: Monday 2/2/2026

• Free Shipping

Alternator, Street, 12 V, 200 amps, Polished, Serpentine Pulley, Buick, Chevy, GMC, Pontiac, Each

Part Number: PWM-67864

Not Yet Reviewed

Estimated Ship Date: Feb 10, 2026 if ordered today

• Free Shipping
• Special Order

Alternator, Natural, 100 Amp, Serpentine Pulley, Buick, Cadillac, Chevy, GMC, Oldsmobile, Pontiac, Each

Part Number: TFF-7127D6G

4.25 out of 5 stars ( 4 )

Estimated Ship Date: Monday 2/2/2026

• Free Shipping

Alternator, Race, Delco AD230 Case, 165 amp, 12 V, V-Belt Pulley, Black Powdercoated, Internal Regulator, Buick, Chevy, GMC, Oldsmobile, Pontiac, Each

Part Number: PWM-58413

Not Yet Reviewed

Estimated Ship Date: Monday 2/2/2026

• Free Shipping

Alternator, Internal Regulator, 150 Amp, Black Powdercoated, Buick, Oldsmobile, Pontiac, Chevy, GMC, Each

Part Number: PWM-57294-104

4.5 out of 5 stars ( 6 )

Estimated Ship Date: Monday 2/2/2026

• Free Shipping

Alternator, Performance, High Amp, GM 10si Case Style, 12 V, 140 Amps, Black Powdercoated, V-Belt, Each

Part Number: TFF-7127NKB12

4.25 out of 5 stars ( 8 )

Estimated Ship Date: Monday 2/2/2026

• Free Shipping

Battery, Titan8, Lithium, BCI Group 34, 14 Volt, 6,000 Watts, 2,000 Max Amps, 144 Energy Watts, 10.24 in. L, 7.16 in. H, 6.89 in. W, 10 lbs, Each

Part Number: XSP-PWRS63400

Not Yet Reviewed

Cannot be shipped Internationally

• Restricted
• Free Shipping

Battery Hold Down Clamp, Steel, Black, Buick, Cadillac, Chevy, GMC, Oldsmobile, Pontiac, Each

Part Number: RNB-00587

4.86 out of 5 stars ( 7 )

Estimated Ship Date: Monday 2/2/2026

Alternators and Generators, Elite Series Cast Alternators, 12 V, 400 amps, Gloss Blue, Serpentine, Buick, Chevrolet, GMC, Hummer, Olds, Pontiac, Each

Part Number: MEH-8206400-BLUE

Not Yet Reviewed

Estimated Ship Date: Feb 16, 2026 if ordered today

• Drop Ship
• Free Shipping
• Special Order

Alternator, Internal Regulator, 150 Amp, Polished, Buick, Oldsmobile, Pontiac, Chevy, GMC, Each

Part Number: PWM-67293-367

Not Yet Reviewed

Estimated Ship Date: Monday 2/2/2026

• Free Shipping