Mahle Electronic Voltage Regulator MX14 for Alternator Part 37911125177 Ref. 139515
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Mahle Electronic Voltage Regulator MX14 for Alternator Part 37911125177 Ref. 139515

Genuine Mahle electronic voltage regulator, part number 37911125177 (cross-references 139515, MX14, MX 14). Engineered to ensure accurate voltage output from the alternator, safeguarding the battery and vehicle onboard electronics from power surges. Premium OE replacement part built for Mahle / Iskra charging systems on agricultural tractors and heavy machinery.

Fits

Application SectorCompatible AlternatorsTractors & Farm MachineryIndustrial & Stationary Power

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€85.00VAT incl.
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Description

Genuine Mahle electronic voltage regulator, part number 37911125177 (cross-references 139515, MX14, MX 14). Engineered to ensure accurate voltage output from the alternator, safeguarding the battery and vehicle onboard electronics from power surges. Premium OE replacement part built for Mahle / Iskra charging systems on agricultural tractors and heavy machinery.

Key features

Solid-State Voltage StabilizationRegulates output to a precision 14.2 V – 14.5 V set-point, ensuring rapid battery charging while eliminating overvoltage hazards to vehicle wiring and sensors.
Integrated Low-Wear Brush AssemblyPre-fitted with premium copper-graphite brushes maintaining constant contact pressure on rotor slip rings, preventing arcing and RF interference.
Heavy-Duty Resin-Sealed HousingPotted in high-grade dielectric resin to shield sensitive internal semiconductors against airborne field dirt, crop chaff, water spray, and severe vibration.
Active Thermal CompensationAutomatically trims charging thresholds relative to under-hood temperatures, protecting battery chemistry in severe summer field conditions and ensuring proper charging in winter.
Direct MAHLE OEM InterchangeabilityBuilt to exact MX14 / MX 14 / 139515 factory specifications for quick bolt-on replacement directly onto the alternator rear housing.

Compatibility

Application SectorSupported Alternators & Agricultural Equipment
Compatible AlternatorsMAHLE / Iskra / Letrika 14V agricultural and industrial alternators specifying MX14 regulators
Tractors & Farm MachinerySameLamborghiniDeutz-FahrCase IHand Fendt tractors and combine harvesters fitted with MAHLE charging systems
Industrial & Stationary PowerDiesel generatorsindustrial pumpswheel loadersand excavators powered by DeutzPerkinsand Yanmar engines

Specifications

Commercial Part Number37911125177
Manufacturer / Quality BrandMAHLE (Iskra / Letrika)
OEM / Manufacturer References139515, MX14, MX 14
Component ClassificationElectronic voltage regulator with integrated brush holder
Nominal System Voltage14 V (for 12 V vehicle battery electrical systems)
Voltage Set-Point14.2 V – 14.5 V
Brush Gear AssemblyPre-installed copper-graphite brushes with calibrated compression springs
Mounting ConfigurationInternal/rear-mounted onto the alternator end-shield via threaded bosses
Primary FunctionOutput voltage regulation and field excitation for MAHLE/Iskra alternators

Compatible parts and accessories 5

Parts and accessories that go with this product

Compatible

Mahle Carbon Brush Kit for Alternators Ref. 37916770134 OEM MGX1674S JX322

Ref. 37916770134
€14.50
Compatible

Mahle Alternator 14V 65A for Deutz-Fahr Case IH John Deere Antonio Carraro Ref. 379IA0499

Ref. 379IA0499
€179.00
Compatible

Mahle Electronic Voltage Regulator MGX503 for Alternator Ref. 37911125122

Ref. 37911125122
€59.00
Compatible

Mahle Alternator Pulley SPZ V-Belt 68 mm Part 37916906308 Ref. MGX674KIT

Ref. 37916906308
€27.50
Compatible

Mahle Alternator Cooling Fan Flywheel Clockwise Rotation Ref. 37915900726

Ref. 37915900726
€15.00

From the same category: A. Carraro Alternators

Other items from the same family

Same category: not always compatible, check the model in the description.

Alternator 14V 33A for Fiat Agri, Lamborghini, Ford and Antonio Carraro Tractors Ref. 37633037

Ref. 37633037
€119.90

Mahle Alternator 14V 33A for Fiat Agri, Lamborghini, Ford and Antonio Carraro 379IA0037

Ref. 379IA0037
€159.00

Alternator 14V 35A for John Deere, Deutz-Fahr, Case IH and Fendt Ref. 37699600

Ref. 37699600
€99.00

Mahle Alternator 14V 33A for John Deere, Deutz-Fahr, Case IH and Fendt Ref. 379IA0096

Ref. 379IA0096
€155.00

Mahle Voltage Regulator for Alternators Ref. 37911125198 OEM MGX1801 130676

Ref. 37911125198
€89.00

Mahle Clockwise Fan Flywheel for Alternators Ref. 37915900156 OEM MGX757 133874

Ref. 37915900156
€23.50

Mahle Carbon Brush Kit for Alternators Ref. 37916770134 OEM MGX1674S JX322

Ref. 37916770134
€14.50

Mahle Alternator Pulley SPZ Profile Ref. 37916906120 OEM MGX63KIT

Ref. 37916906120
€33.50

Mahle Alternator 14V 65A for Deutz-Fahr Case IH John Deere Antonio Carraro Ref. 379IA0499

Ref. 379IA0499
€179.00

Alternator 14V 65A Pulley 73 mm for Deutz-Fahr Case IH John Deere Ref. 3760010056

Ref. 3760010056
€125.00

Mahle Electronic Voltage Regulator MGX503 for Alternator Ref. 37911125122

Ref. 37911125122
€59.00

Mahle Alternator Pulley SPZ V-Belt 68 mm Part 37916906308 Ref. MGX674KIT

Ref. 37916906308
€27.50

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Mahle Electronic Voltage Regulator MX14 for Alternator Part 37911125177 Ref. 139515
Price€85.00