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M&H

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

Vehicle Specific View fitment for 15 models
Part# 27555
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$35.99
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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

  • 2023 Cadillac 1936-1993 116
  • 2024 Chevelle, El Camino 64-77 302, 358
  • 2024 Cutlass, F-85 & 442 61-77 233
  • 2023 Grand Prix 1962-77 177
  • 2024 Monte Carlo 70-77 221
  • 2024 Riviera 1963-76 82, 103
  • 2024 Skylark, GS & GSX 61-72 207
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  
1954–1972 Cadillac Fleetwood  
1954–1964 Cadillac Series 62  
1954–1964 Cadillac Series 65  
1964–1972 Chevrolet Chevelle  
1965–1969 Chevrolet Corvair  
 
1964–1972 Chevrolet El Camino  
1970–1977 Chevrolet Monte Carlo  
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