[VWNate1]

I'm sure your current alternator is a 65 + ampere SI Delcotron unit, internally regulated and nothing fancy just a very good, long lived, hard working and easy to repair at home item.....

If you're wanting some under the hood bling, go for it just don't be surprised when it fails in short order .

You didn't say which 1984 Chevy light duty Silverado nor the engine so I chose the 1/2 ton and 350CID engine, lots of choices :

One of our most popular parts
w/o AC; 42 Amps; CAUTION: Pulley Change May Be Required (Only 1 Remaining)

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$26.79 $0.00 $26.79
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PURE ENERGY 7127103N {Click Info Button for Alternate/OEM Part Numbers} Info
w/o Air Conditioning

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$45.79 $0.00 $45.79
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ACDELCO 3351094 {#88877304} Professional Info One of our most popular parts
w/ AC; 78 Amps

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$59.99 $0.00 $59.99
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POWER SELECT 71273N {Click Info Button for Alternate/OEM Part Numbers} Info
Std, w/o AC

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$60.79 $0.00 $60.79
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POWER SELECT 72943N {Click Info Button for Alternate/OEM Part Numbers} Info
FitsOpt, w/AC
OrStd, w/AC

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$67.79 $0.00 $67.79
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REMY 91757 {Click Info Button for Alternate/OEM Part Numbers} Premium; New; Remy Gold Info
w/ AC; 78 Amps; CAUTION: Pulley Change May Be Required

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$69.79 $0.00 $69.79
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ACDELCO 3351093 {#88877303} Professional Info
w/o AC; 42 Amps

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$72.79 $0.00 $72.79
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BOSCH AL530N Info
for vehicles without air conditioner (Only 2 Remaining)

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$82.79 $0.00 $82.79
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POWER SELECT 7127SEN {#7127SE} Info
Opt. Service Unit, DR 10SI, CW, 63 Amp, Self Excite 1 Wire Aftermarket Design

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$82.79 $0.00 $82.79
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POWER SELECT 7294SEN {#7294SE} Info
Opt. Service Unit, DR 12SI, CW, 94 Amp, Self Excite 1 Wire Aftermarket Design

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$85.79 $0.00 $85.79
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POWER SELECT 7294SECN {#7294SEC} Info
Opt. Service Unit, DR 12SI, CW, 94 Amp, Self Excite 1 Wire Aftermarket Design, Chrome Finish

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$94.79 $0.00 $94.79
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BOSCH AL533N Info
For vehicles with air conditioner (Only 2 Remaining)

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$99.79 $0.00 $99.79
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Remanufactured collapse
PURE ENERGY 7127103 Remanufactured Info One of our most popular parts
w/o Air Conditioning
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$21.79 $9.00 $30.79
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PURE ENERGY 7127SW3 Remanufactured Info One of our most popular parts
GM Universal, Single Wire, 63 amp alt.
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$27.79 $10.00 $37.79
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REMY 20038 {Click Info Button for Alternate/OEM Part Numbers} Premium; Remanufactured Info
w/o AC; 42 Amps

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$29.79 $10.00 $39.79
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PURE ENERGY 7272103 Remanufactured Info
w/o Air Conditioning [Private Label Package] (Only 1 Remaining)

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$36.79 $7.20 $43.99
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ACDELCO 3342112A {#88864305} Professional; Remanufactured Info One of our most popular parts
w/o AC, Standard; 10SI; Unit Mfr: ACDelco; Amps: 63; Pulley 1V; External Fan; Internal Regulator; Clock: 3:00

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$31.79 $25.00 $56.79
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ACDELCO 3342614 Professional; Remanufactured Info
GM Universal, Single Wire, 63 amp alt.; 10SI; Unit Mfr: ACDelco; Amps: 63; Pulley 1V; External Fan; Internal Regulator; Clock: 3:00

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$51.79 $7.00 $58.79
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ACDELCO 3342151A {#88864398} Professional; Remanufactured Info
w/o AC, Optional; 12SI; Unit Mfr: ACDelco; Amps: 66; Pulley 1V; External Fan; Internal Regulator; Clock: 3:00 (Only 4 Remaining)

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$52.79 $7.00 $59.79
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BOSCH AL530X Remanufactured; May Not Include Pulley Info
for vehicles without air conditioner (Only 2 Remaining)

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$58.79 $5.00 $63.79
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REMY 20260 {Click Info Button for Alternate/OEM Part Numbers} Premium; Remanufactured Info
w/ AC; 78 Amps; CAUTION: Pulley Change May Be Required

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$44.79 $20.00 $64.79
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ACDELCO 3342619 {#88862371} Professional; Remanufactured Info
w/ AC; 12SI; Unit Mfr: ACDelco; Amps: 78; Pulley 5S; External Fan; Internal Regulator; Clock: 9:00

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$58.79 $7.00 $65.79
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PURE ENERGY 7273509 Remanufactured Info
W/ AC
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$65.79 $8.00 $73.79
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ACDELCO 321357 {#19151861} REMANUFACTURED; 78 Amps Info
Delco Series: 12SI; Internal Regulator & External Fan; 5S PULLEY; w/ 78 AMP GEN(K64) or 66 AMP(K81); MATES W/ CONNECTOR 12101909; REGULATOR AT 9:00

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$75.79 $11.00 $86.79
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Alternator / Generator Brush