Shop By Product Matching "Powermaster"
Choose your Engine for your 1981 GMC Jimmy
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Product
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- 12si; 150 Amp; 100 Idle; 1 Groove V Type; Baffle; Black
- Alternator; 12si; 150 Amp; 100 Idle; 1 Groove V Type; 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 |
|---|---|---|---|---|
| 1981 - GMC Jimmy | V | - | 8 Cyl 5.7L | 350 |
- 12si; 150 Amp; 100 Idle; 1V; Baffle; Black
- Alternator; 12si; 150 Amp; 100 Idle; 1 Groove V Type; 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 |
|---|---|---|---|---|
| 1981 - GMC Jimmy | L | - | 6 Cyl 4.1L | 250 |
- 12si; 150 Amp; 100 Idle; 1V; Baffle; Natural
- Alternator; 12si; 150 Amp; 100 Idle; 1 Groove V Type; 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 |
|---|---|---|---|---|
| 1981 - GMC Jimmy | V | - | 8 Cyl 5.7L | 350 |
- 12si; 150 Amp; 100 Idle; 1 Groove V Type; Baffle; Natural
- Alternator; 12si; 150 Amp; 100 Idle; 1 Groove V Type; 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 |
|---|---|---|---|---|
| 1981 - GMC Jimmy | V | - | 8 Cyl 5.0L | 305 |
- 10si Internally Regulated; 100 Amp; 70 Idle; 1V; Chrome
- Alternator; 10si Internally Regulated; 100 Amp; 70 Idle; 1 Groove V Type; Chrome;
- Alternator
- Product Attributes:
- Amperage: 100 Amp
-
Features:
- Early OEM/Retro Look
- 100 Plus Amps At Top End/70 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 |
|---|---|---|---|---|
| 1981 - GMC Jimmy | V | - | 8 Cyl 5.7L | 350 |
- 10si Internally Regulated; 100 Amp; 70 Idle; 1 Groove V Type; Chrome
- Alternator; 10si Internally Regulated; 100 Amp; 70 Idle; 1 Groove V Type; Chrome;
- Alternator
- Product Attributes:
- Amperage: 100 Amp
-
Features:
- Early OEM/Retro Look
- 100 Plus Amps At Top End/70 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 |
|---|---|---|---|---|
| 1981 - GMC Jimmy | V | - | 8 Cyl 5.7L | 350 |
- 168 Tooth Flywheel; 250 ft./lb. Torque; 18:1 Compression Rate; 4.5:1 Gear Reduction; Staggered Mount; Natural Finish
- Ultra Torque Starter; 168 Tooth Flywheel; 250 ft./lb. Torque; 18:1 Compression Rate; 4.5:1 Gear Reduction; Staggered Mount; Natural Finish;
- Ultra Torque Starter
-
Features:
- 2.5 KW/3.4 HP
- Up to 18:1 Compression
- Clears Most Headers and Oil Pans
- Solenoid Up only
- 3 Position Rotation
- Great for Big Cubic Inch Engines
- Supplied With Bolt and Shim Kit
- Individually Dyno Tested with Proof of Performance Guarantee
- Powermaster Ultra Torque Starter Are Rated Up To 18:1 Compression With 250 Ft-Lbs of Cranking Torque. With 3.4HP and a 4.4:1 Gear Reduction These Starter Can Keep Up With The Most Demanding Engines. 3 Position Rotation Billet Aluminum Mounting Block. All Powermaster Starters Come With Our Dyno Tested Proof Of Performance Guarantee. Made in USA.
Additional Fitment Information:
| Vehicle | Block | CC | Engine | CID |
|---|---|---|---|---|
| 1981 - GMC Jimmy | V | - | 8 Cyl 5.0L | 305 |
- 12si; 150 Amp; 100 Idle; 1V; Baffle And Cone; Chrome
- Alternator; 12si; 150 Amp; 100 Idle; 1 Groove V Type; Baffle And Cone; 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 | Block | CC | Engine | CID |
|---|---|---|---|---|
| 1981 - GMC Jimmy | L | - | 6 Cyl 4.1L | 250 |
- 12si; 150 Amp; 100 Idle; 1 Groove V Type; Baffle And Cone; Chrome
- Alternator; 12si; 150 Amp; 100 Idle; 1 Groove V Type; Baffle And Cone; 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 | Block | CC | Engine | CID |
|---|---|---|---|---|
| 1981 - GMC Jimmy | L | - | 6 Cyl 4.1L | 250 |
- 168 Tooth Flywheel; 180 ft./lb. Torque; 14:1 Compression Ratio; 3.25:1 Gear Reduction; InfiClock System; Black Wrinkle Finish
- Mastertorque Starter; 168 Tooth Flywheel; 180 ft./lb. Torque; 14:1 Compression Ratio; 3.25:1 Gear Reduction; InfiClock System; Black Wrinkle Finish;
- Mastertorque Starter
-
Features:
- Clears Most Headers and Oil Pans
- No Heat Soak Or Hot Start Problems with Encapsulated Solenoid
- Durable Black Wrinkle Finish
- Billet Aluminum Mounting Block with infiCLOCK 360 Degree Rotation
- InfiCLOCK Standard On Many Applications
- Individually Dyno Tested with Proof of Performance Guarantee
- Powermaster Mastertorque Starters Are Rated Up to 14:1 Compression With A 3.25:1 Gear Reduction And Up to 1.8HP Producing 180 Ft-Lbs of Cranking Torque. The Mastertorque Starters Feature A Durable Black Wrinkle Finish. This Starter Features Our InfiCLOCK Design For 360 Degree Rotation For Ultimate Adjustability. All Powermaster Starters Come With Our Dyno Tested Proof Of Performance Guarantee. Made in USA.
Additional Fitment Information:
| Vehicle | Block | CC | Engine | CID |
|---|---|---|---|---|
| 1981 - GMC Jimmy | V | - | 8 Cyl 5.0L | 305 |
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