What Alternator Fits a 2019 Volkswagen Jetta?
Alternator part numbers catalogued for the 2019 Volkswagen Jetta (1.4 L petrol, 4-cyl, 150 hp), the engine variants that change them, and how to replace it.
The 2019 Volkswagen Jetta with the 1.4 L petrol, 4-cyl, 150 hp engine takes alternators such as BOSCH 1 986 A01 094, AS-PL A3340S and Borsehung B12042 (aftermarket parts catalogue). The catalogue lists 19 alternators from 13 brands for this engine, AS-PL listing the most (3). The 2019 Jetta was built with 4 engine variants (from 1.4 L to 2.0 L); these part numbers are catalogued for the 1.4 L petrol, and other engines can take a different alternator.
Last updated: · Source: aftermarket parts catalogue
2019 Volkswagen Jetta alternator: key facts
| Catalogued engine | 1.4 L petrol, 4-cyl, 150 hp |
|---|---|
| Part numbers | 1 986 A01 094 (BOSCH); 0 986 083 790 (BOSCH); A3340S (AS-PL); A3340PR (AS-PL); A0627PR (AS-PL); B12042 (Borsehung) |
| Catalogue listings | 19 alternators, 13 brands |
| Engine variants (2019) | 4, from 1.4 L to 2.0 L |
| Fit is decided by | The engine, the amperage output, the pulley type and the electrical connector |
| NHTSA recalls: electrical system | 3 of 11 for this model |
| DIY | Advanced DIY (test charging system first) |
Sources: aftermarket parts catalogue (part numbers, engines), NHTSA recalls.
Alternator: what it does & when to replace it
The alternator charges the battery and powers the electrical system while the engine runs. Failure signs include a battery warning light, dimming or flickering lights, dead battery despite a recent replacement, a whining or grinding noise, or a burning-rubber smell. A failing alternator will eventually leave you stranded once the battery drains. Replacement is a moderate-to-advanced DIY job — access and serpentine-belt removal vary a lot by vehicle, and some require removing other components first. Have the charging system tested before replacing, since the battery or belt is sometimes the real culprit.
DIY difficulty: Advanced DIY (test charging system first). Always confirm the correct part for your exact build by VIN before buying.
Which engine does your 2019 Volkswagen Jetta have?
The 2019 Volkswagen Jetta was sold with 4 engine variants, and the correct alternator can differ between them. This is the single thing a year/make/model dropdown cannot tell you.
| Engine | Fuel | Cylinders | Years |
|---|---|---|---|
| 1.4 L 150 hp | Petrol | 4 | 2017–now |
| 1.4 L 150 hp | Petrol/Ethanol | 4 | 2018–2020 |
| 2.0 L 230 hp | Petrol | 4 | 2018–now |
| 2.0 L 231 hp | Petrol | 4 | 2018–now |
Engine variants catalogued for this model (parts catalogue), filtered to those built around 2019. We hold catalogued part numbers for the base engine only — decode your VIN and we resolve your exact engine, then the exact part. Full dimensions and specifications for this vehicle are on the 2019 Volkswagen Jetta overview.
How to replace the alternator on a 2019 Volkswagen Jetta
- 1Test the charging system first to confirm the alternator, not the battery or belt, is at fault.
- 2Disconnect the battery negative terminal, then release the serpentine belt from the alternator using the tensioner.
- 3Disconnect the alternator’s electrical connectors and main charging cable.
- 4Unbolt and remove the old alternator (you may need to remove other components for access).
- 5Fit the new alternator, reconnect wiring, refit the belt with correct routing, reconnect the battery, and confirm ~13.5–14.5V at idle.
⚠ Access and belt routing vary widely by vehicle — photograph the belt routing before removal.
These are general steps for the electrical category. Exact fastener locations, torque values, and the correct part number depend on your 2019 Volkswagen Jetta’s build — confirm by VIN before you start.
Compatible parts for your 2019 Volkswagen Jetta
Real alternator options catalogued for this 2019 Volkswagen Jetta (parts catalogue), shown for the base engine (1.4000 L Petrol). Each links to live marketplace listings for that exact brand and part number.
| Brand | Part number | Note | Shop |
|---|---|---|---|
| BOSCH | 1 986 A01 094⇆ cross-ref |
Alternator | Find this part → |
| BOSCH | 0 986 083 790⇆ cross-ref |
Alternator | Find this part → |
| AS-PL | A3340S⇆ cross-ref |
Alternator | Find this part → |
| AS-PL | A3340PR⇆ cross-ref |
Alternator | Find this part → |
| AS-PL | A0627PR⇆ cross-ref |
Alternator | Find this part → |
| Borsehung | B12042⇆ cross-ref |
Alternator | Find this part → |
Compatible options shown for the base engine — exact fit can vary by engine and trim; confirm with your VIN before buying. Part data: aftermarket parts catalogue.
Shop alternator for your 2019 Volkswagen Jetta
Browse alternator listings from major marketplaces. Confirm fitment by VIN first — use VinSnap above to get the exact part number for your build before purchasing.
Find the exact alternator by VIN
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Decode my VIN →Frequently asked questions
What alternator fits a 2019 Volkswagen Jetta?
The 2019 Volkswagen Jetta with the 1.4 L petrol, 4-cyl, 150 hp engine takes alternators such as BOSCH 1 986 A01 094, AS-PL A3340S and Borsehung B12042 (aftermarket parts catalogue). The 2019 Jetta was built with 4 engine variants (from 1.4 L to 2.0 L); these part numbers are catalogued for the 1.4 L petrol, and other engines can take a different alternator.
Which brands make alternators for the 2019 Volkswagen Jetta?
For the 1.4 L petrol engine, the catalogue lists 19 alternators from 13 brands: AS-PL, Borsehung, BOSCH, HC-Cargo, WAI, CASCO, EAI, ITAB AUTOMOTIVE and 5 more.
How often should the alternator on a 2019 Volkswagen Jetta be replaced?
The alternator charges the battery and powers the electrical system while the engine runs. Failure signs include a battery warning light, dimming or flickering lights, dead battery despite a recent replacement, a whining or grinding noise, or a burning-rubber smell. VinSnap has no manufacturer-specific interval on file for the 2019 Volkswagen Jetta; the owner’s manual has the official schedule.
Can I replace the alternator on a 2019 Volkswagen Jetta myself?
Advanced DIY (test charging system first). Allow about 1–3 hours. Tools: socket set, serpentine belt tool, torque wrench, multimeter. Access and belt routing vary widely by vehicle — photograph the belt routing before removal.
Are there recalls on the 2019 Volkswagen Jetta’s electrical system?
Yes. NHTSA lists 3 recalls for the 2019 Volkswagen Jetta filed under the electrical system: 23V619000 (2023-09-06), electrical system / instrument cluster/panel; 23V604000 (2023-08-30), electrical system / ignition / switch; 18V824000 (2018-11-26), electrical system / instrument cluster/panel. Recall repairs are free at a franchised Volkswagen dealer.