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Photo of Wiring Harness, External To Internally Regulated "SI" Series Alternators
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M&H

Wiring Harness, External To Internally Regulated "SI" Series Alternators

Part# : 27555
Sold As: Each
Ship Size: Standard
Price Match: Eligible
$36.99
List Price: $41.95
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Vehicle Specific View fitment for 25 models
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Convert your external regulator to internal

This harness is necessary when converting to an internally regulated "SI" series alternator originally found on 1972-84 non-serpentine belt vehicles.

Find Item In These Catalogs

  • 2025 Chevelle, El Camino 64-77 339
  • 2025 Cutlass, F-85 & 442 61-77 212
  • 2025 Monte Carlo 70-77 197
  • 2025 Riviera 1963-76 78,  98
  • 2025 Skylark, GS & GSX 61-72 191
WARNING: This product can expose you to chemicals including lead, sulfur, nickel, chromium, vanadium, titanium, polyvinyl chloride, and 4,4’-methylenebis (2-chloroaniline), which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Vehicle Fitment

Year Make Model Application Details
1963–1976 Buick Riviera  
1964–1972 Buick Skylark
1959–1972 Cadillac DeVille  
1954–1972 Cadillac Eldorado  
1965–1972 Cadillac Fleetwood  
1954–1964 Cadillac Series 62  
1963–1972 Chevrolet C10  
1963–1972 Chevrolet C20  
1963–1972 Chevrolet C30  
1964–1972 Chevrolet Chevelle  
1965–1969 Chevrolet Corvair  
 
1964–1972 Chevrolet El Camino  
1963–1972 Chevrolet K10  
1963–1972 Chevrolet K20  
1970–1977 Chevrolet Monte Carlo  
1963–1972 GMC C15/C1500  
1963–1972 GMC C25/C2500  
1963–1972 GMC C35/C3500  
1970–1972 GMC Jimmy  
1963–1972 GMC K15/K1500  
1963–1972 GMC K25/K2500  
1964–1977 Oldsmobile Cutlass  
1964–1970 Pontiac GTO  
1963–1970 Pontiac LeMans  
1963–1970 Pontiac Tempest  
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Wiring Harness, External To Internally Regulated
M&H Wiring Harness, External To Internally Regulated "SI" Series Alternators