2021 Honda Odyssey Electrical Parts

This table covers the alternators that charge the battery and run the electrical load. Typical signs include dim lights at idle, a battery lamp, or a growl from the charging pulley. Load-test the battery and inspect the belt and grounds — a bad ground mimics a failed alternator. Read more

11 Alternator / Generator parts are listed for the 2021 Honda Odyssey, from REMY, TERREPOWER, TYC and 6 other brands. TYC 211773 carries the "Popular" badge.

In the New grade, TYC, WAI GLOBAL, REMY and 1 other brand supply 4 parts: brand-new units rather than rebuilt ones. A representative part number is TYC 211773.

In the Remanufactured grade, ACDELCO, BOSCH, DENSO and 4 other brands supply 7 parts: factory-rebuilt units with new wear components. A representative part number is ACDELCO 3343082.

This table covers the pulleys on the alternator shaft. Typical signs include a growl or chirp that follows engine speed, or a pulley that will not spin freely by hand. Spin each pulley with the belt off. Roughness or play means replace it with the belt. Read more

4 Alternator / Generator Pulley parts for the 2021 Honda Odyssey come from 4 brands — ACKOJA, BANDO, CONTINENTAL and 1 other brand.

Part numbers include ACKOJA A26230001, BANDO 480053 and CONTINENTAL 49936, among others listed above.

This table covers the batteries listed by group size and specification. Typical signs include slow cranking, a battery lamp, or a no-start after the vehicle sat overnight. Confirm group size and terminal layout in the notes. Clean the posts and the ground before condemning the battery. Read more

9 Battery parts for the 2021 Honda Odyssey come from 7 brands — DEKA, ACDELCO, LUCAS and 4 other brands. The "Popular" part is DEKA 9A48.

In the AGM (Extended Life) grade, DEKA, ACDELCO, LUCAS and 3 other brands supply 8 parts: grouped under the catalog's "AGM (Extended Life)" designation — the notes column spells out what sets them apart. A representative part number is DEKA 9A48.

In the Performance AGM (Extended Life + Increased Power) grade, FULLRIVER supplies 1 part: grouped under the catalog's "Performance AGM (Extended Life + Increased Power)" designation — the notes column spells out what sets them apart. A representative part number is FULLRIVER FT68048.

This group includes DEKA 9A48, LUCAS LBAGM004A and ACDELCO 48AGM and the remaining parts above.

This table covers the Battery Current sensors. Typical signs include a warning lamp, a stored code, or a reading that drops out when the harness is wiggled. Inspect the connector and ground before replacing the sensor — wiring faults are often condemned as bad sensors. Read more

2 Battery Current Sensor parts are listed for the 2021 Honda Odyssey, from HELLA and STANDARD MOTOR PRODUCTS.

Listed part numbers: HELLA 010547761 and STANDARD MOTOR PRODUCTS BSC140.

This table covers the ultrasonic park-aid sensors in the bumper. Typical signs include a warning lamp, a stored code, or a reading that drops out when the harness is wiggled. Inspect the connector and ground before replacing the sensor — wiring faults are often condemned as bad sensors. Read more

2 Parking Aid Sensor parts are listed for the 2021 Honda Odyssey, from STANDARD MOTOR PRODUCTS and TECHPRO.

Part numbers include STANDARD MOTOR PRODUCTS PPS176 and TECHPRO HO1075102.

This table covers the speed sensors on the transmission, transfer case or ABS ring. Typical signs include a dead speedometer, harsh transmission shifts, or a code for vehicle speed. Inspect the tone wheel and the connector before replacing the sensor. Read more

4 Speed Sensor parts for the 2021 Honda Odyssey come from 3 brands — STANDARD MOTOR PRODUCTS, BECK/ARNLEY and DELPHI.

The Economy section lists 1 option from BECK/ARNLEY — the catalog's value-priced group. BECK/ARNLEY 0900045 is listed in this group.

In the Standard Replacement grade, STANDARD MOTOR PRODUCTS and DELPHI supply 3 parts: built to original-equipment specification. A representative part number is DELPHI SS12401.

Part numbers include BECK/ARNLEY 0900045, DELPHI SS12401 and STANDARD MOTOR PRODUCTS SC825, among others listed above.

This table covers the starter motors that crank the engine. Typical signs include no motion, a squeal, or a motor that only runs on one speed. Confirm power, ground and the control module before replacing the motor. Read more

6 Starter Motor parts are listed for the 2021 Honda Odyssey, from TYC, WAI GLOBAL, PURE ENERGY and 3 other brands. PURE ENERGY 19147 carries the "Popular" badge.

New: 2 parts, from TYC and WAI GLOBAL. A representative part number is TYC 116379.

Remanufactured: 4 parts, from PURE ENERGY, REMY, FVP and 1 other brand. A representative part number is PURE ENERGY 19147.

Listed part numbers: PURE ENERGY 19147, TYC 116379 and WAI GLOBAL 16379N, plus the other parts above.