Shop By Product Matching "Powermaster"

Choose your Engine for your 1987 Chevrolet R20


Showing 1 - 10 of 30 products
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Powermaster
  • 12si; 150 Amp; 100 Idle; 1V Pulley; Black
  • Alternator; 12si; 150 Amp; 100 Idle; 1 Groove V Type Pulley; 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
1987 - Chevrolet R20 L - 6 Cyl 4.8L 292

Powermaster
  • 12si; 150 Amp; 100 Idle; 1 Groove V Type Pulley; Black
  • Alternator; 12si; 150 Amp; 100 Idle; 1 Groove V Type Pulley; 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
1987 - Chevrolet R20 V - 6 Cyl 4.3L 262

Powermaster
  • 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
1987 - Chevrolet R20 V - 8 Cyl 7.4L 454

Powermaster
  • 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
1987 - Chevrolet R20 L - 6 Cyl 4.8L 292

Powermaster
  • 12si; 150 Amp; 100 Idle; 1 Groove V Type Pulley; Natural
  • Alternator; 12si; 150 Amp; 100 Idle; 1 Groove V Type 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 Block CC Engine CID
1987 - Chevrolet R20 L - 6 Cyl 4.8L 292

Powermaster
  • 12si; 150 Amp; 100 Idle; 1V Pulley; Natural
  • Alternator; 12si; 150 Amp; 100 Idle; 1 Groove V Type 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 Block CC Engine CID
1987 - Chevrolet R20 L - 6 Cyl 4.8L 292

Powermaster
  • 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
1987 - Chevrolet R20 L - 6 Cyl 4.8L 292

Powermaster
  • 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
1987 - Chevrolet R20 V - 8 Cyl 7.4L 454

Powermaster
  • 3.8:1 Gear Reduction; 260 ft./lb. Torque; Natural Finish
  • Ultra Duty Diesel Starter; 3.8:1 Gear Reduction; 260 ft./lb. Torque; Natural Finish;
  • Ultra Duty Diesel Starter
  • Features:
    • Stronger
    • Faster
    • Tougher
    • Durable Black Wrinkle Finish Protects in Harsh Environments
    • Individually Dyno Tested with Proof of Performance Guarantee
  • Powermaster Diesel Ultra Duty Starter. Featuring 3.8:1 Gear Reduction And 3.6HP. These starters are able to turn over the most aggressive diesel engines in the harshest of environments. Durable Black Wrinkle Finish Protects Against Corrosion. All Powermaster Starters Come With Our Dyno Tested Proof Of Performance Guarantee.

Additional Fitment Information:
Vehicle Block CC Engine CID
1987 - Chevrolet R20 V - 8 Cyl 6.2L 379

Powermaster
  • CS130; Straight Mounting; 105 Amp; 85 Idle; 6 Groove Pulley; Chrome
  • Alternator; CS130; Straight Mounting; 105 Amp; 85 Idle; 6 Groove Pulley; Chrome;
  • Alternator
  • Product Attributes:
    • Amperage: 105 Amp
  • Features:
    • Highly Efficient Small Case Alternator
    • 105 Plus Amps At Top End/85 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
    • Smooth Back Design
  • Powermaster has a variety of alternators available for various applications.

Additional Fitment Information:
Vehicle Block CC Engine CID
1987 - Chevrolet R20 V - 8 Cyl 6.2L 379
Showing 1 - 10 of 30 products

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