How to remove and install Alternator on Honda Prelude?

The voltage drop test is done with direction to measure the following, voltage drop across the alternator output wire from the alternator output terminal to the battery positive post; voltage drop from the ground terminal of the alternator. A voltmeter with a 0-18 volt DC scale is needed and depending on the object being tested, other points of high resistance can be found by switching the place of the leads. There should be proper charge on the battery and the battery must also be in good health before charging. After ''warming up the engine'', attach an engine tachometer, set the parking brake, and start the engine as other electric accessories are on. Advance the engine speed to 2,400 RPM and check the ground circuitry with the voltmeter probes connected to the battery terminal and the alternator output terminal with the voltage not to exceed 0.6 volts. For the positive circuitry, the leads should be connected to the negative terminal of the battery and the case of the alternator; the voltage should not be more than 0.3 volts. Also, measure the voltage between the alternator and the casing and between the alternator and the engine. When performing the output voltage test and the battery is charged, perform the voltage drop test first. To test for voltage turn the key to 'on', press the starter button until the motor is warmed up maintain the motor at 3000 RPM by using a VAT-40 or any other equivalent speed meter. If voltage is less than or equal to 15.1 volts, replace with alternator. To read charging current switch the tester to charging mode, set the ammeter to zero and then read voltage and amperage. If the amperage is less than the specified values, then, it is necessary to replace the alternator or voltage regulator. For removal and installation, record radio security code, unbolt battery cables, take off the power steering pump, disconnect wiring from the alternator, then, remove the alternator belt and the mounting bolt. Removal is basically the undoing of installation, where the alternator belt tension is checked and the radio security code is re-inputted. Apart from the regular procedures such as disconnecting the battery cables, removing the alternator belt and disconnecting the connectors when removing the alternator, there are some procedures that are specific to the engine type; these are tightening bolts to their respective torque values after fixing them.

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22 Alternators found

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Honda Prelude Alternator Assembly (Cjp76) (Denso)
Part Number: 31100-P12-A02
$225.97 MSRP: $321.90
You Save: $95.93 (30%)
ADD TO CART
Product Specifications
- Replaced by: 31100-P39-003
- Warranty: This genuine part is guaranteed by Honda's factory warranty.
Fits the following Vehicles:
- 1992-1996 Honda Prelude | 2 Door S | KA 4AT, KA 5MT, KL 4AT, KL 5MT
View related parts
Honda Prelude Alternator Assembly (Cjk87) (Denso)
Part Number: 31100-PK1-014
$791.57 MSRP: $1142.23
You Save: $350.66 (31%)
ADD TO CART
Product Specifications
- Replaced by: 31100-PK1-A02
- Warranty: This genuine part is guaranteed by Honda's factory warranty.
Fits the following Vehicles:
- 1988-1989 Honda Prelude | 2 Door 2.0S | KA 4AT, KA 5MT, KL 4AT, KL 5MT
View related parts
Honda Prelude Alternator Assembly (Cjk35) (Denso)
Part Number: 31100-PJ0-661RM
$191.61 MSRP: $272.06
You Save: $80.45 (30%)
ADD TO CART
Limited Availability
Product Specifications
- Replaced by: 06311-PJ0-661RM
- Warranty: This genuine part is guaranteed by Honda's factory warranty.
Fits the following Vehicles:
- 1985-1987 Honda Prelude | 2 Door SI | KA 4AT, KA 5MT, KL 4AT, KL 5MT
View related parts
Honda Prelude Alternator Assembly (Reman)
Part Number: 06311-P5M-003RM
Product Specifications
- Replaces: 31100-P5M-013RM, 31100-P5M-003RM
- Warranty: This genuine part is guaranteed by Honda's factory warranty.
Fits the following Vehicles:
- 1997-2001 Honda Prelude | 2 Door Base, 2 Door TYPESH | KA 4AT, KA 5MT, KL 4AT, KL 5MT
View related parts
Honda Prelude Alternator Assembly
Part Number: 31100-671-014
Product Specifications
- Replaced by: 31100-PB2-004RM
- Warranty: This genuine part is guaranteed by Honda's factory warranty.
Fits the following Vehicles:
- 1981-1982 Honda Prelude | 2 Door ** | KA 5MT, KA HMT, KH 5MT, KH HMT, KL 5MT, KL HMT
View related parts
Honda Prelude Alternator Assembly
Part Number: 31100-671-014RMD
Product Specifications
- Replaced by: 31100-PB2-004RM
- Warranty: This genuine part is guaranteed by Honda's factory warranty.
Fits the following Vehicles:
- 1981-1982 Honda Prelude | 2 Door ** | KA 5MT, KA HMT, KH 5MT, KH HMT, KL 5MT, KL HMT
View related parts
Honda Prelude Alternator Assembly
Part Number: 31100-689-004
Product Specifications
- Replaced by: 31100-PB2-004RM
- Warranty: This genuine part is guaranteed by Honda's factory warranty.
Fits the following Vehicles:
- 1981-1982 Honda Prelude | 2 Door ** | KA 5MT, KA HMT, KH 5MT, KH HMT, KL 5MT, KL HMT
- 1979 Honda Prelude | 2 Door ** | KA 5MT, KA HMT, KH 5MT, KH HMT, KL 5MT, KL HMT
View related parts
Honda Prelude Alternator Assembly
Part Number: 31100-689-014
Product Specifications
- Replaced by: 31100-PB2-004RM
- Warranty: This genuine part is guaranteed by Honda's factory warranty.
Fits the following Vehicles:
- 1979-1982 Honda Prelude | 2 Door ** | KA 5MT, KA HMT, KH 5MT, KH HMT, KL 5MT, KL HMT
View related parts
Honda Prelude Alternator Assembly (Ckz31)
Part Number: 31100-PA6-901
Product Specifications
- Replaced by: 31100-PB2-004RM
- Warranty: This genuine part is guaranteed by Honda's factory warranty.
Fits the following Vehicles:
- 1981-1982 Honda Prelude | 2 Door ** | KA 5MT, KA HMT, KH 5MT, KH HMT, KL 5MT, KL HMT
View related parts
Honda Prelude Alternator Assembly (Ckz27)
Part Number: 31100-PB2-004
Product Specifications
- Replaced by: 31100-PB2-004RM
- Warranty: This genuine part is guaranteed by Honda's factory warranty.
Fits the following Vehicles:
- 1981 Honda Prelude | 2 Door ** | KA 5MT, KA HMT, KH 5MT, KH HMT, KL 5MT, KL HMT
View related parts
Honda Prelude Alternator Assembly (Reman)
Part Number: 31100-PB2-004RM
Product Specifications
- Replaces: 31100-671-014, 31100-PA6-901, 31100-PB2-004RMD, 31100-689-004, 31100-689-014, 31100-671-004, 31100-671-014RMD, 31100-PB2-004
- Warranty: This genuine part is guaranteed by Honda's factory warranty.
Fits the following Vehicles:
- 1979-1982 Honda Prelude | 2 Door ** | KA 5MT, KA HMT, KH 5MT, KH HMT, KL 5MT, KL HMT
View related parts
Honda Prelude Alternator Assembly (Cka29) (Denso)
Part Number: 31100-PC6-004RM
Product Specifications
- Other Name: Alternator
- Replaced by: 06311-PC6-004RM
- Warranty: This genuine part is guaranteed by Honda's factory warranty.
Fits the following Vehicles:
- 1983-1987 Honda Prelude | 2 Door DX | KA 4AT, KA 5MT, KH 4AT, KH 5MT, KL 4AT, KL 5MT
View related parts
Honda Prelude Alternator Assembly
Part Number: 31100-PK1-A01
Product Specifications
- Warranty: This genuine part is guaranteed by Honda's factory warranty.
Fits the following Vehicles:
- 1990 Honda Prelude | 2 Door 2.0S | KA 4AT, KA 5MT, KL 4AT, KL 5MT
View related parts
Honda Prelude Alternator Assembly (Cjk88) (Denso)
Part Number: 31100-PK2-014
Product Specifications
- Warranty: This genuine part is guaranteed by Honda's factory warranty.
Fits the following Vehicles:
- 1988-1989 Honda Prelude | 2 Door 2.0SI | KA 4AT, KA 5MT, KL 4AT, KL 5MT
View related parts
Honda Prelude Alternator Assembly
Part Number: 31100-PK3-A01
Product Specifications
- Warranty: This genuine part is guaranteed by Honda's factory warranty.
Fits the following Vehicles:
- 1990-1991 Honda Prelude | 2 Door 2.05SI, 2 Door 2.0SI | KA 4AT, KA 5MT, KL 4AT, KL 5MT
View related parts
Honda Prelude Alternator Assembly (Cjp76) (Denso)
Part Number: 31100-P12-A01
Product Specifications
- Warranty: This genuine part is guaranteed by Honda's factory warranty.
Fits the following Vehicles:
- 1992 Honda Prelude | 2 Door S | KA 4AT, KA 5MT, KL 4AT, KL 5MT
View related parts
Honda Prelude Alternator Assembly (Cjp78) (Denso)
Part Number: 31100-P14-A02
Product Specifications
- Replaced by: 31100-P39-003
- Warranty: This genuine part is guaranteed by Honda's factory warranty.
Fits the following Vehicles:
- 1992-1996 Honda Prelude | 2 Door SI | KA 4AT, KA 5MT, KL 4AT, KL 5MT
View related parts
Honda Prelude Alternator Assembly (Cjp78) (Denso)
Part Number: 31100-P14-A01
Product Specifications
- Warranty: This genuine part is guaranteed by Honda's factory warranty.
Fits the following Vehicles:
- 1992 Honda Prelude | 2 Door SI | KA 4AT, KA 5MT, KL 4AT, KL 5MT
View related parts
Honda Prelude Alternator Assembly
Part Number: 31100-PB3-971
Product Specifications
- Warranty: This genuine part is guaranteed by Honda's factory warranty.
Fits the following Vehicles:
- 1982 Honda Prelude | 2 Door ** | KA 5MT, KA HMT, KH 5MT, KH HMT, KL 5MT, KL HMT
View related parts
Honda Prelude Alternator Assembly (Cjp75) (Denso)
Part Number: 31100-P13-013
Product Specifications
- Warranty: This genuine part is guaranteed by Honda's factory warranty.
Fits the following Vehicles:
- 1993-1996 Honda Prelude | 2 Door Sivtec | KA 5MT, KL 5MT

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Honda Prelude Alternator Parts Questions & Experts Answers

Alternator Assembly (Cjp76) (Denso)
31100-P12-A02
Q: How to remove and install Alternator on Honda Prelude?
A: The voltage drop test is done with direction to measure the following, voltage drop across the alternator output wire from the alternator output terminal to the battery positive post; voltage drop from the ground terminal of the alternator. A voltmeter with a 0-18 volt DC scale is needed and depending on the object being tested, other points of high resistance can be found by switching the place of the leads. There should be proper charge on the battery and the battery must also be in good health before charging. After ''warming up the engine'', attach an engine tachometer, set the parking brake, and start the engine as other electric accessories are on. Advance the engine speed to 2,400 RPM and check the ground circuitry with the voltmeter probes connected to the battery terminal and the alternator output terminal with the voltage not to exceed 0.6 volts. For the positive circuitry, the leads should be connected to the negative terminal of the battery and the case of the alternator; the voltage should not be more than 0.3 volts. Also, measure the voltage between the alternator and the casing and between the alternator and the engine. When performing the output voltage test and the battery is charged, perform the voltage drop test first. To test for voltage turn the key to 'on', press the starter button until the motor is warmed up maintain the motor at 3000 RPM by using a VAT-40 or any other equivalent speed meter. If voltage is less than or equal to 15.1 volts, replace with alternator. To read charging current switch the tester to charging mode, set the ammeter to zero and then read voltage and amperage. If the amperage is less than the specified values, then, it is necessary to replace the alternator or voltage regulator. For removal and installation, record radio security code, unbolt battery cables, take off the power steering pump, disconnect wiring from the alternator, then, remove the alternator belt and the mounting bolt. Removal is basically the undoing of installation, where the alternator belt tension is checked and the radio security code is re-inputted. Apart from the regular procedures such as disconnecting the battery cables, removing the alternator belt and disconnecting the connectors when removing the alternator, there are some procedures that are specific to the engine type; these are tightening bolts to their respective torque values after fixing them.