Description
FP19020303 - 22SI 12V 145 AMP ALTERNATOR
PART NUMBER(S):
Fleet Products: FP19020303 | OE: 19020303, 19020306, 10459212 | Automann: 178.22SI-145AJ
DESCRIPTION:
Model: Delco Remy 22SI Series
Vehicles: Freightliner, Kenworth, Peterbilt, Volvo, Ford, Blue Bird, Agco Allis, Chevrolet C-Series, and other medium/heavy-duty trucks and buses
• Voltage: 12V DC
• Amperage: 145A
• Mount Type: J180 Hinge Mount
• Rotation: Clockwise
• Polarity: Negative ground
• Terminals:
• B+ Output: 1/4-28 threaded stud
• I Terminal: #10 threaded (idle control)
• R Terminal: Universal pin type (tach signal)
• Regulator: Internal
• Remote Sense: No
• Fan Type: Dual internal fans
• Case Style: Heavy-duty brush type
• Dimensions: 8.54" length × 5.67" stator diameter
• Weight: 14.1–16 lbs (6.4–7.3 kg)
• Max Speed: 10,000 RPM continuous, 12,000 RPM intermittent
• Efficiency: 57%
• Temp Tolerance: Operates up to 93°C (200°F)
• System Integrity: OEM-grade construction designed for high-vibration, high-heat environments
• Performance: Exceeds Delco Remy/SAE performance standards, delivers strong idle output and durable continuous duty
• Unique Identifiers: Drop-in replacement for 22SI applications; alternator model stamped on housing
Applications:
Primary alternator in 12V electrical systems across a wide range of commercial and vocational vehicles. Direct fit for engines such as Cummins 855 CID, N14, Caterpillar 3116/3126, and Ford 10.4L diesel platforms. Suitable for fleet buses, farm tractors, vocational trucks, and medium-duty delivery vehicles.
CROSS-REFERENCE(S):
FP19020303, 19020303, 19020306, 10459212, 19020310, 90014270, 90-01-4297N, DR-19020306, S-E232, 10459205, 10459216, 4C4Z-10346-CA, 3675228, 3517186C91, 3550645C92, 90-01-4297HO
A cross-reference listing means this part may be a compatible replacement for these part numbers based on OEM or distributor data.
IMPORTANT INSTALLATION NOTES:
✔ Disconnect all batteries before alternator removal or installation
✔ Use original J180 mount hardware and torque bolts to 35–40 ft-lbs
✔ Ensure proper alignment of pulley and check belt tension
✔ Connect B+ with lock washer to prevent vibration arcing
✔ Verify R and I terminals are wired according to vehicle schematic
✔ After installation, check system output: 13.8–14.4V at idle
✔ Test under load to confirm charge stability (≥14.2V recommended)
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Warranty Information
