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Product
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- 12si; 100 Amp; 75 Idle; 1V; OE Look; Chrome
- Alternator; 12si; 100 Amp; 75 Idle; 1V; OE Look; Chrome;
- Alternator
- Product Attributes:
- Amperage: 100 Amp
-
Features:
- Most Popular Classic Look
- 100 Plus Amps At Top End/75 Plus Amps At Idle
- One Unit For 1 Or 3 Wire Operation
- Individually Dyno Tested with Proof of Performance Guarantee
- Popular Upgrade For 10DN/10SI/12SI Alternators
- Powermaster has a variety of alternators available for various applications.
Additional Fitment Information:
| Vehicle |
|---|
| 1966 - GMC K15/K1500 Pickup |
- 12si; 100 Amp; 75 Idle; 1V; OE Look; Polished
- Alternator; 12si; 100 Amp; 75 Idle; 1V; OE Look; Polished;
- Alternator
- Product Attributes:
- Amperage: 100 Amp
-
Features:
- Most Popular Classic Look
- 100 Plus Amps At Top End/75 Plus Amps At Idle
- One Unit For 1 Or 3 Wire Operation
- Individually Dyno Tested with Proof of Performance Guarantee
- Popular Upgrade For 10DN/10SI/12SI Alternators
- Powermaster has a variety of alternators available for various applications.
Additional Fitment Information:
| Vehicle |
|---|
| 1966 - GMC K15/K1500 Pickup |
- 12si; 150 Amp; 100 Idle; 1V Pulley; Polished
- Alternator; 12si; 150 Amp; 100 Idle; 1V Pulley; Polished;
- Alternator
- Product Attributes:
- Amperage: 150 Amp
-
Features:
- Most Popular Classic Look
- 150 Plus Amps At Top End/100 Plus Amps At Idle
- One Unit For 1 Or 3 Wire Operation
- Individually Dyno Tested with Proof of Performance Guarantee
- High Output Replacement For Early 10DN/10SI/12SI Alternators
- Powermaster has a variety of alternators available for various applications.
Additional Fitment Information:
| Vehicle |
|---|
| 1966 - GMC K15/K1500 Pickup |
- 12si; Straight Mount; 100 Amp; 75 Idle; 1V Pulley; Natural
- Racing Alternator; 12si; Straight Mount; 100 Amp; 75 Idle; 1V Pulley; Natural;
- Racing Alternator
- Product Attributes:
- Amperage: 100 Amp
-
Features:
- Most Popular Classic Look GM Style Race Prepped
- 100 Plus Amps At Top End/75 Plus Amps At Idle
- One Unit For 1 Or 3 Wire Operation
- Individually Dyno Tested with Proof of Performance Guarantee
- Great Upgrade To Replace Lower Amp Units
- Fits The Most Popular Straight Mount 12/6/6.61 in. Brackets
- Powermaster has a variety of alternators available for various applications.
Additional Fitment Information:
| Vehicle | Block | CC | Engine | CID |
|---|---|---|---|---|
| 1966 - GMC G1000 Series | L | 3769 | 6 Cyl 3.8L | 230 |
- 12si; 150 Amp; 100 Idle; 1V Pulley; Chrome
- Alternator; 12si; 150 Amp; 100 Idle; 1V Pulley; Chrome;
- Alternator
- Product Attributes:
- Amperage: 150 Amp
-
Features:
- Most Popular Classic Look
- 150 Plus Amps At Top End/100 Plus Amps At Idle
- One Unit For 1 Or 3 Wire Operation
- Individually Dyno Tested with Proof of Performance Guarantee
- High Output Replacement For Early 10DN/10SI/12SI Alternators
- Powermaster has a variety of alternators available for various applications.
Additional Fitment Information:
| Vehicle |
|---|
| 1966 - GMC K15/K1500 Pickup |
- 12si; 150 Amp; 100 Idle; 1V; Baffle; Black
- Alternator; 12si; 150 Amp; 100 Idle; 1V; Baffle; Black;
- Alternator
- Product Attributes:
- Amperage: 150 Amp
-
Features:
- Most Popular Classic Look
- 150 Plus Amps At Top End/100 Plus Amps At Idle
- One Unit For 1 Or 3 Wire Operation
- Individually Dyno Tested with Proof of Performance Guarantee
- High Output Replacement For Early 10DN/10SI/12SI Alternators
- Powermaster has a variety of alternators available for various applications.
Additional Fitment Information:
| Vehicle | Block | CC | Engine | CID |
|---|---|---|---|---|
| 1966 - GMC G1000 Series | L | 3769 | 6 Cyl 3.8L | 230 |
- 12si; 150 Amp; 100 Idle; 1V; Baffle; Natural
- Alternator; 12si; 150 Amp; 100 Idle; 1V; Baffle; Natural;
- Alternator
- Product Attributes:
- Amperage: 150 Amp
-
Features:
- Most Popular Classic Look
- 150 Plus Amps At Top End/100 Plus Amps At Idle
- One Unit For 1 Or 3 Wire Operation
- Individually Dyno Tested with Proof of Performance Guarantee
- High Output Replacement For Early 10DN/10SI/12SI Alternators
- Powermaster has a variety of alternators available for various applications.
Additional Fitment Information:
| Vehicle | Block | CC | Engine | CID |
|---|---|---|---|---|
| 1966 - GMC G1000 Series | L | 3180 | 6 Cyl 3.2L | 194 |
- 12si; 100 Amp; 75 Idle; 1V; OE Look; Natural
- Alternator; 12si; 100 Amp; 75 Idle; 1V; OE Look; Natural;
- Alternator
- Product Attributes:
- Amperage: 100 Amp
-
Features:
- Most Popular Classic Look
- 100 Plus Amps At Top End/75 Plus Amps At Idle
- One Unit For 1 Or 3 Wire Operation
- Individually Dyno Tested with Proof of Performance Guarantee
- Great Upgrade To Replace Lower Amp Units
- Powermaster has a variety of alternators available for various applications.
Additional Fitment Information:
| Vehicle | Block | CC | Engine | CID |
|---|---|---|---|---|
| 1966 - GMC G1000 Series | L | 3769 | 6 Cyl 3.8L | 230 |
- 12si; 150 Amp; 100 Idle; 1V Pulley; Natural
- Alternator; 12si; 150 Amp; 100 Idle; 1V Pulley; Natural;
- Alternator
- Product Attributes:
- Amperage: 150 Amp
-
Features:
- Most Popular Classic Look
- 150 Plus Amps At Top End/100 Plus Amps At Idle
- One Unit For 1 Or 3 Wire Operation
- Individually Dyno Tested with Proof of Performance Guarantee
- High Output Replacement For Early 10DN/10SI/12SI Alternators
- Powermaster has a variety of alternators available for various applications.
Additional Fitment Information:
| Vehicle |
|---|
| 1966 - GMC K15/K1500 Pickup |
- 10DN; Externally Regulated; 70 Amp; 45 Idle; 1V; Chrome
- Alternator; 10DN; Externally Regulated; 70 Amp; 45 Idle; 1V; Chrome;
- Alternator
- Product Attributes:
- Amperage: 70 Amp
-
Features:
- Early OEM/Retro Look
- 100 Plus Amps At Top End/70 Plus Amps At Idle
- Externally Regulated
- Individually Dyno Tested with Proof of Performance Guarantee
- Great Upgrade To Replace Lower Amp Units
- Powermaster has a variety of alternators available for various applications.
Additional Fitment Information:
| Vehicle |
|---|
| 1966 - GMC K15/K1500 Pickup |
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