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2003 Freightliner Century Class
2003 Freightliner Century Class Voltage Regulators
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Part Number: WAID33
Guaranteed to Fit
$16.99
Vehicle Fitment
- 2003 Freightliner Century Class CST120 6 Cyl 12.7L Remote Sense, Road Gang Pkg.,High Temp. Pkg., Mercedes MBE4000
- 2003 Freightliner Century Class CST120 6 Cyl 14.0L Remote Sense, Road Gang Pkg.,High Temp Pkg.
Product Details
Warranty : WAI limited warrantyQuantity Sold : Sold individuallyProp 65 Warning :
WARNING: This product can expose you to chemical which is 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.
Part Number: WAIIN9252
Guaranteed to Fit
$24.49
Vehicle Fitment
- 2003 Freightliner Century Class CST120 6 Cyl 12.7L Dual Foot Mt., ND
- 2003 Freightliner Century Class CST120 6 Cyl 12.8L Dual Foot Mt., ND
- 2003 Freightliner Century Class CST120 6 Cyl 14.0L Dual Foot Mt., ND
- 2003 Freightliner Century Class CST112 6 Cyl 12.8L Dual Foot Mt., ND
Product Details
Warranty : WAI limited warrantyQuantity Sold : Sold individuallyProp 65 Warning :
WARNING: This product can expose you to chemical which is 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.
Part Number: WAIL102945
Guaranteed to Fit
$29.49
Vehicle Fitment
- 2003 Freightliner Century Class CST112 6 Cyl 10.8L enginedesignationname: ISM 10.8; enginemfrname: Cummins, C112; Leece-Neville, IR/ EF, 270 Amp, Pad Mount; 320A, Dual Ft. Mt.; 185 Amp, B. Post-left; Caterpillar 3176/C10, Quad Mt., Opt. Serv. Repl., 12V / 185A
- 2003 Freightliner Century Class CST120 6 Cyl 14.0L C112; LN IR/ EF, 270A, J-180 Mtg., SE Reg.; Quad Mt., Opt. Serv. Repl., 12V / 185A; 185 Amp, B. Post-right; Caterpillar 3176/C10
- 2003 Freightliner Century Class CST112 6 Cyl 10.3L C112; Caterpillar 3176/C10, Leece-Neville, IR/ EF, 270 Amp, Pad Mount/Quad Pad Mt.; 320A, Dual Ft. Mt.; 185 Amp, B. Post-left; Opt. Serv. Repl., 12V / 185A
- 2003 Freightliner Century Class CST120 6 Cyl 10.8L enginedesignationname: ISM 10.8; enginemfrname: Cummins, C112; Leece-Neville, IR/ EF, 270 Amp, Pad Mount; 320A, Dual Ft. Mt.; 185 Amp, B. Post-left; Caterpillar 3176/C10, Quad Mt., Opt. Serv. Repl., 12V / 185A
Product Details
Warranty : WAI limited warrantyQuantity Sold : Sold individuallyProp 65 Warning :
WARNING: This product can expose you to chemical which is 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.
Part Number: WAID1033
Guaranteed to Fit
$30.99
Vehicle Fitment
- 2003 Freightliner Century Class CST120 6 Cyl 14.0L C112; C120
Product Details
Warranty : WAI limited warrantyQuantity Sold : Sold individuallyProp 65 Warning :
WARNING: This product can expose you to chemical which is 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.
Part Number: WAIIB677
Guaranteed to Fit
$31.49
Vehicle Fitment
- 2003 Freightliner Century Class CST120 6 Cyl 12.7L Bosch Replacement Unit, 200 Amp
Product Details
Warranty : WAI limited warrantyQuantity Sold : Sold individuallyProp 65 Warning :
WARNING: This product can expose you to chemical which is 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.
Part Number: WAIL79000LH
Guaranteed to Fit
$42.99
Vehicle Fitment
- 2003 Freightliner Century Class CST120 6 Cyl 12.7L
- 2003 Freightliner Century Class CST112 6 Cyl 12.0L
- 2003 Freightliner Century Class CST120 6 Cyl 14.0L
- 2003 Freightliner Century Class CST120 6 Cyl 12.0L
Product Details
Warranty : WAI limited warrantyQuantity Sold : Sold individuallyProp 65 Warning :
WARNING: This product can expose you to chemical which is 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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Popular Products
WAIVoltage Regulator - Sold individuallyManufacturer #D33
( Reviews) Questions, Answers
WAI VOLTAGE REGULATOR
WAI voltage regulator is manufactured using its state-of-the-art production facility to meet the most advanced parts manufacturing standards. Each part or component is developed by innovative parts design teams to exceed customer expect...
Helpful Automotive Resources
Where is the Voltage Regulator Located on an Alternator?To access the voltage regulator, all you need to do is park your vehicle, disconnect the car battery, and check the engine compartment. It’s helpful to look up the voltage regulator for your vehicle on CarParts.com so you can determine what it looks like.
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Why Is My Battery Light On?It’s normal to see the “battery icon” illuminated when you start your car. But if the battery light came on again while you were driving, that’s a different story. Here are the possible reasons why your battery light is on:
It’s normal to see the “battery icon” illuminated when you start
Why Won’t My Car Start?Automotive professionals break down no-start situations into two separate categories: crank-no-start and no-crank-no-start.
Alternator Voltage Regulation 101 (with Wiring Diagrams)As most people know, the alternator charges the battery whenever the engine is running while also supplying electricity to the car’s electronics. The alternator accomplishes these tasks through electromagnetic induction—a phenomenon that generates electrical current from a magnetic field.
The alternator’s stator (background), rotor (center), and rectifier (foreground).
Bad Voltage Regulator: Symptoms, Testing, Replacement Cost & MoreAs most people know, the alternator charges the battery (whenever the engine is running) while also supplying electricity to the car’s electronics. The alternator accomplishes these tasks through electromagnetic induction—a phenomenon that generates electrical current from a magnetic field.
The voltage regulator controls the amount of current that flows through the
P2503 Code: Charging System Voltage LowCode P2503 is set once the PCM detects that the alternator output is less than the target charging voltage during engine operation.