Mahle Alternator Cooling Fan Flywheel Clockwise Rotation Ref. 37915900726
Genuine Mahle alternator cooling fan flywheel with clockwise rotation, part number 37915900726 (cross-references 133875, MGX 398, MGX398). Features an outer diameter of 135 mm, a 17 mm bore size, and a 14 mm width. Engineered to deliver maximum heat dissipation and prevent thermal overload on heavy-duty agricultural tractor alternators.
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Description
Genuine Mahle alternator cooling fan flywheel with clockwise rotation, part number 37915900726 (cross-references 133875, MGX 398, MGX398). Features an outer diameter of 135 mm, a 17 mm bore size, and a 14 mm width. Engineered to deliver maximum heat dissipation and prevent thermal overload on heavy-duty agricultural tractor alternators.
Key features
Calibrated Clockwise Aerodynamic Blade ProfileVane geometry is designed specifically for clockwise rotation to optimize CFM airflow delivery through the housing, significantly lowering internal operating temperatures.
Precision Ø 17 mm Shaft Center Bore17 mm center hole with 14 mm axial depth seats flat and concentric against the rotor shoulder and drive pulley without mechanical runout.
OEM-Level Rotational BalancingDynamically balanced during production to prevent harmonic vibrations and premature fatigue on the alternator drive-end ball bearings at elevated engine speeds.
High-Strength Stamped Steel ConstructionRigid single-piece design provides high fatigue resistance against airborne field dust, crop chaff, and harsh vibration.
Full MAHLE / Iskra Alternator CompatibilityMatches factory specifications MGX398 / 133875 for seamless rebuilding and servicing of heavy-duty charging equipment.
Compatibility
| Application Category | Compatible Alternators & Tractor Series |
| Primary Alternators | MAHLE / Iskra / Letrika 14V clockwise alternators with 17 mm shaft (including 379IA0499MG 6043760010056and related IA series) |
| Antonio Carraro Tractors | Series 30040050060070090009800 tractors fitted with clockwise MAHLE charging alternators |
| Case IH Tractors | B-Familie (644744844856 XL)C-Familie (9551056 XL)CS and Compact series with clockwise alternators |
| Deutz-Fahr Tractors | Series D 06D 07DXDX 3DX 4AgroPrimaAgroStarAgroXtra using IA series alternators with 135 mm fan |
| John Deere Equipment | Series 20304050 and combine harvesters specifying MAHLE/Iskra external clockwise cooling fans |
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Specifications
| Commercial Part Number | 37915900726 |
|---|---|
| Manufacturer / Quality Brand | MAHLE (Iskra / Letrika) |
| OEM / Manufacturer References | 133875, MGX 398, MGX398 |
| Component Classification | External alternator cooling fan / flywheel |
| Direction of Rotation | Clockwise (↻ / CW) |
| Dimension A (Shaft Bore Diameter) | 17 mm |
| Dimension B (Outside Diameter) | 135 mm |
| Dimension C (Axial Height / Thickness) | 14 mm |
| Material Specification | Precision-stamped sheet steel with anti-corrosive coating |
| Primary Function | Forced-air thermal management for agricultural and industrial alternators |
Goes well with
Mahle Carbon Brush Kit for Alternators Ref. 37916770134 OEM MGX1674S JX322
Ref. 37916770134€14.50
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
More in A. Carraro Alternators
Mahle Voltage Regulator for Alternators Ref. 37911125198 OEM MGX1801 130676
Ref. 37911125198€89.00
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
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 Alternator Cooling Fan Flywheel Clockwise Rotation Ref. 37915900726Price€15.00