OEM DELCO PART NUMBERS:
• Delco: 1116807 / 1116816
• Delco: 1118291 / 1118308
• Delco: 1118575 / 1118780 / 1118982
• Delco: 1119575
• Delco: D645 / D657
DELCO GENERATOR NUMBERS (Paired Generators):
• Delco Generator: 1100043
• Delco Generator: 1100529 / 1100530
• Delco Generator: 1101851 / 1101856 (B.F. Avery)
INDUSTRY CROSS-REFERENCES:
• Industry: 81-1905
• Industry: D13911
• Industry: VR1814
• Allis Chalmers: 70228365
• International Harvester: 376121R91
• Massey Ferguson: 180142M92 / 1901587M91
• Prestolite: 8-291 / GRX-291
• Other Names: Voltage Regulator
• Other Names: Generator Regulator
• Other Names: 6V Regulator
• Other Names: Tractor Voltage Regulator
• Other Names: Delco Two-Unit Regulator
• Other Names: A-Circuit Regulator
• Other Names: Positive Ground Regulator
PRODUCT SPECIFICATIONS:
• Product Type: Voltage Regulator
• Unit Type: Delco (Two-Unit Type)
• Voltage: 6 Volt
• Terminal Count: 4
• Terminal ID: L-BAT-F-GEN
• Terminal Position: GEN Terminal on REAR
• Circuit Type: A-Circuit
• Polarity: Positive Ground
• Amperage: 7-9 Amps
• Adjustable: Non-Adjustable
• Weight: 3 lbs (1.36 kg)
• Condition: New Aftermarket Replacement
• Quantity: Sold Individually (1 Piece)
• Product Fit: Direct Fit OEM Replacement
• Mounting: Original Mounting Pattern
• Recommended Use: OE Replacement
• Compliance: OEM-Spec Certified
• Designed For: Agricultural and Industrial
VEHICLE COMPATIBILITY SUMMARY:
• Massey Ferguson TO-20 / TO-30 / TO-35 (1948-1960)
• Massey Ferguson MF40 / MF202 / MF204 / MF302 / MF304 / MF356
• Cockshutt / White 540 Continental F-186 Gas (1958-1959)
• IHC / Farmall CUB / A / B / C / H / M Series (All Sub-Variants)
• IHC / Farmall 100-400 Series
• John Deere 40 / 320 / 330 / 420 / 430 / 440 Gas
• Oliver OC-3 with Hercules IXB
• Case 200B with Delco Generator
• B.F. Avery A / BF / R / Ro-Track / V
• Allis Chalmers with Delco 6V Generator
ENGINE COMPATIBILITY:
• Continental Z-129 4-Cyl Gas
• Continental Z-134 4-Cyl Gas
• Continental F-186 6-Cyl Gas
• Hercules IXB (Oliver OC-3)
• Various 6V Delco Generator-Equipped Engines
CRITICAL FITMENT NOTES:
• 6 VOLT SYSTEM ONLY — Does NOT Fit 12V Systems
• POSITIVE GROUND ONLY — Does NOT Fit Negative Ground
• A-CIRCUIT ONLY — Does NOT Fit B-Circuit
• TRACTOR-MOUNTED APPLICATION
• GEN Terminal on REAR (Not Underneath)
• 4-TERMINAL Only — Not 3-Terminal
• Similar to 81-1906 — 81-1906 Has GEN Underneath
• For Delco Generator-Equipped Tractors ONLY
• Does NOT Fit Alternator-Equipped Systems
• Verify Polarity and Voltage Before Ordering
WHAT IS INCLUDED:
• One (1) Voltage Regulator (Two-Unit Type)
• Regulator + Cutout Relay in Single Housing
WHAT IS NOT INCLUDED:
• Brush Holder
• Rectifier (Not Needed for DC Generator)
• Tolerance Ring
• Mounting Hardware / Screws
• Wiring Harness / Terminals
• Installation Instructions
SYMPTOMS OF FAILURE:
• Battery Not Charging
• Battery Overcharging (Boiling Electrolyte)
• Ammeter Reading Incorrectly
• Generator Output Unregulated
• Dim / Flickering Lights
• Generator Runs Backward When Engine Off
• Burnt Contacts on Regulator
• Melted Wiring at Terminals
PLATFORM HERITAGE:
• Vintage 6V Positive Ground Era (Late 1940s-Early 1960s)
• DC Generator-Based Charging
• Pre-Dates 12V Negative Ground Transition
• Common Across U.S. Farm Tractors of This Era
PRODUCT NOTICE:
As a parts distributor we mostly sell aftermarket parts (any OEM parts would be noted as such). Aftermarket parts are not sourced from the original vehicle or equipment manufacturer, but are designed to function the same as - if not better than - the original. All parts sold are new.
WARNING - This product may expose you to chemicals such as Carbon Black, Silica, Crystalline 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
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