1978 Jeep J20 Alternator Parts

Choose your Engine for your 1978 Jeep J20


Showing 1 - 10 of 15 products
Image
SKU
Product
Rating
Price

Powermaster
  • 10si Internally Regulated; 85 Amp; 55 Idle; 1V; Chrome
  • Alternator; 10si Internally Regulated; 85 Amp; 55 Idle; 1V; Chrome;
  • Alternator
  • Product Attributes:
    • Amperage: 85 Amp
  • Features:
    • Early OEM/Retro Look
    • 85 Plus Amps At Top End/55 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
1978 - Jeep J20

Powermaster
  • 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
1978 - Jeep J20

Powermaster
  • 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
1978 - Jeep J20

Powermaster
  • 10si Internally Regulated; 85 Amp; 55 Idle; 1V; Natural
  • Alternator; 10si Internally Regulated; 85 Amp; 55 Idle; 1V; Natural;
  • Alternator
  • Product Attributes:
    • Amperage: 85 Amp
  • Features:
    • Early OEM/Retro Look
    • 85 Plus Amps At Top End/55 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
1978 - Jeep J20

Powermaster
  • 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
1978 - Jeep J20

Powermaster
  • 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
1978 - Jeep J20

Powermaster
  • 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
1978 - Jeep J20

Powermaster
  • 10si Internally Regulated; 100 Amp; 70 Idle; 1V; Chrome
  • Alternator; 10si Internally Regulated; 100 Amp; 70 Idle; 1V; 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
1978 - Jeep J20

Powermaster
  • 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
1978 - Jeep J20

Powermaster
  • 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
1978 - Jeep J20
Showing 1 - 10 of 15 products

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