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Picking the right Chevrolet Traverse alternator matters because your vehicle depends on steady electrical output for starting, lighting, and onboard electronics. A poor fit or weak output can lead to dim lights, battery drains, or unexpected breakdowns. This guide highlights seven shortlisted alternators chosen for compatibility with the Traverse and for their consistent charging performance and installation practicality. Below you will find our top picks and concise notes on what to expect from each option, along with the evaluation criteria used to assess output stability, fitment, and build quality.
Looking for other parts? See all Chevrolet Traverse parts & accessories.
Top Picks at a Glance
| Best Reviewed A top-rated pick with lots of positive feedback | Z-YALY-Z Alternator compatible with Chevrolet Traverse/Enclave/Acadia 3.6L V6 |  |
| Most Popular A crowd favorite that many people choose with confidence | ACDelco Gold 335-1068 Alternator |  |
| Best Quality Built to a higher standard if you want something more solid | Promrmr 12V 170A Alternator (13506432) for Chevrolet Traverse 3.6L |  |
| Best Budget The cheapest option that still gets the job done reliably | OEG Parts 170A 12V Alternator for Chevrolet Traverse 3.6L |  |
| Most Sold A high-volume bestseller chosen again and again | BDELI Alternator 170A Replacement for Chevrolet Traverse 3.6L (2009–2017) |  |
| Best Value for Money The sweet spot between price and what you get | PHILTOP 11250N Alternator, 155A 12V CW S6 |  |
| Best Overall The best all-around choice for most situations | ACDelco GM Genuine Parts Alternator (20881337) |  |
1. Z-YALY-Z Alternator compatible with Chevrolet Traverse/Enclave/Acadia 3.6L V6
| Compatibility | 2009–2017 Traverse 3.6L V6; 2008–2017 Enclave 3.6L V6; 2007–2012 Acadia 3.6L V6 |
|---|---|
| OEM replacement numbers | 1042106160, 11252N, 1042106310, 25815839, 23279588 |
| Exterior | Metal |
This Z-YALY-Z alternator is a direct-fit replacement designed to restore charging system function on 3.6L V6 Traverse models within the specified year range. It installs using the factory mounting points and matches common OEM part numbers, so it is typically used as a straightforward swap for a failed unit during a routine repair. Notable features include factory-style electrical connections and claimed compatibility with multiple OEM numbers, which simplifies parts-matching and reduces installation guesswork. In real-world use it offers reliable voltage output for vehicle electronics and battery charging when the original alternator fails, and several user reports note correct fit and normal charging performance out of the box. Limitations are that this is an aftermarket unit with no listed extended warranty and long-term durability is less documented than from a factory remanufacturer, so buyers wanting maximum lifespan may prefer a remanufactured factory-sourced option.
Best for: Reliability-focused buyers who prioritize a correct, fast replacement to get a Traverse back on the road with predictable charging performance.
Less Ideal for: Buyers seeking a factory remanufactured alternator with long documented lifespan or an extended warranty should consider remanufactured OEM sources instead.
- Direct-fit design that matches multiple factory part numbers for easy installation
- Built for the 3.6L V6 charging demands to restore proper voltage and charging function
- Metal exterior and factory-style mounting points for a familiar installation process
- Several buyers report correct fit and immediate charging performance
- Aftermarket product with limited long-term durability data compared with factory remanufactured units
- No extended warranty or service information listed in the product details
Verdict A practical, direct-fit aftermarket alternator that gets a 3.6L Traverse charging system working again quickly, with typical aftermarket longevity trade-offs.
2. ACDelco Gold 335-1068 Alternator
| Amperage Rating | 105 A |
|---|---|
| Alternator Case Material | Aluminum |
| Manufacturer | ACDelco |
| Manufacturer Part Number | 88877278 |
This ACDelco Gold alternator is a factory-quality replacement built with all-new components and computer-tested regulators to provide stable voltage and dependable charging. It is intended as a direct-fit swap for compatible GM engines, so installation is typically straightforward and uses existing mounting points and terminals. Notable features include a 105 amp rating for moderate electrical loads, greased internal components for improved durability, and an aluminum case that helps with heat dissipation. In practical use it will restore battery charging and support accessories like lights and audio without adding complexity. Some users report long-term reliability while others have seen early failures, so performance can vary between units. This alternator is a good choice when you want a convenient, bolt-in replacement that matches factory form and function, but expect that occasional units may require warranty handling or replacement if they do not meet longevity expectations.
Best for: Convenience-driven buyers who prioritize a straightforward, bolt-in factory-quality replacement to quickly restore charging performance with minimal fuss.
Less Ideal for: Buyers who need a high-output or heavy-duty alternator for upgraded accessories or who prefer aftermarket performance units should consider other options.
- Factory-quality direct-fit design for easy installation
- Computer-tested regulator and circuits for stable voltage output
- 105 amp output suitable for standard accessory loads
- Greased key components intended to improve durability
- Aluminum case aids heat dissipation during operation
- Some reports of early failures reducing long-term reliability consistency
- Fitment must be verified for specific Traverse model years before purchase
Verdict A convenient, factory-style replacement alternator that restores charging performance for compatible GM vehicles but with some variability in long-term durability.
3. Promrmr 12V 170A Alternator (13506432) for Chevrolet Traverse 3.6L
| Voltage | 12V |
|---|---|
| Output | 170 Amp |
| Compatible vehicles | Chevrolet Traverse 2019-2022 V6 3.6L |
This Promrmr alternator is a direct-fit replacement specified for the Chevrolet Traverse 2019–2022 with the 3.6L V6 and supplies up to 170 amps of charging capacity. It is used like any factory replacement alternator: swap the failed unit, reconnect the electrical and belt, then restore the charging system. Notable features include its 170A output rating suitable for vehicles with higher electrical loads and the manufacturer-stated build quality intended for long-term use. For performance-focused buyers, the higher amperage helps support added accessories and reduces strain on the battery during demanding conditions. Practical benefits are straightforward: restores charging performance, supports high-load electrical systems, and is packaged as a single ready-to-install unit. Limitations to note are that fitment is restricted to specific model years and engine, and installation requires basic mechanical skill or a shop for belt tension and electrical checks. The listing includes a one-year after-sales promise from the maker rather than a lengthy factory-backed warranty.
Best for: Performance-oriented buyers who upgrade electrical accessories or run heavier loads and want a high-output, ready-to-install alternator matched to their Chevrolet Traverse.
Less Ideal for: Buyers seeking broad cross-vehicle compatibility or extended factory-backed warranty coverage should consider alternatives or dealer-sourced replacements.
- 170 amp output supports high electrical loads and added accessories
- Direct-fit design for Chevrolet Traverse 2019–2022 3.6L reduces modification during installation
- Supplies a single complete unit intended to replace a failed alternator without needing additional parts
- Manufacturer warranty is limited to one year rather than extended coverage
- Compatibility is limited to specific years and the 3.6L V6 so it is not universal
Verdict A high-output direct-fit alternator aimed at Traverse owners who need reliable extra charging capacity for performance and accessory demands.
4. OEG Parts 170A 12V Alternator for Chevrolet Traverse 3.6L
| Amperage | 170 Amps |
|---|---|
| Voltage | 12 Volts |
| Rotation | CW |
| Pulley class | SC6 |
| Regulator/Fan | IR/IF |
This OEG Parts 170A alternator is a direct replacement option for the Chevrolet Traverse 3.6L and is aimed at drivers who need a lower-cost fix for a failed charging system. It delivers up to 170 amps at 12 volts and uses a clockwise rotation with a side plug orientation and SC6 pulley class, so it installs like a standard replacement where fitment matches. Typical use is to restore charging for the battery and run electrical accessories without resorting to dealer-remanufactured parts. The unit is offered without mounting hardware and ships as a new hairpin-style alternator with an internal regulator and fan. Practical benefits include a high amperage rating suitable for accessory-loaded Traverses and a compact package that fits the factory location. Limitations to consider are mixed longevity reports in reviews, no included mounting hardware, and that buyer support or warranty details are not listed in the product information, which increases the risk if the unit fails early.
Best for: Cost-conscious Chevrolet Traverse owners who prioritize a low upfront repair cost and need a direct replacement to restore charging function quickly.
Less Ideal for: Drivers who want guaranteed long-term reliability or prefer dealer-remanufactured units with documented warranty coverage should consider other options.
- 170 amp output suitable for restocking charging capacity on the Traverse 3.6L
- Designed for 12V electrical systems and factory-style clockwise rotation for plug-and-play fit where compatible
- New hairpin-style unit with internal regulator and fan to manage voltage and cooling
- Compact, machined exterior that matches common replacement alternator form factors
- Mounting hardware is not included so additional parts or shop time may be needed
- Customer reports show variable reliability and some early failures
- No explicit warranty information provided in the product details
Verdict A budget-friendly 170A replacement for the Chevrolet Traverse 3.6L that restores charging at a low cost but carries some reliability uncertainty and lacks included hardware.
5. BDELI Alternator 170A Replacement for Chevrolet Traverse 3.6L (2009–2017)
| Engine fit | 3.6L Chevrolet Traverse (2009–2017) |
|---|---|
| Output | 170 AMP |
| Manufacturer | BDELI |
| Model | B18924 |
This BDELI alternator is a direct replacement designed for the 3.6L Chevrolet Traverse and supplies a 170 amp output intended to restore charging performance. Typical use is a like-for-like swap when the factory alternator fails or shows charging faults; installers will find familiar mounting points and electrical connections for straightforward replacement. The listing emphasizes factory-quality testing, ISO and IATF certification, and bench testing to support reliability claims, and the included one-year free replacement policy adds post-purchase protection. In practice the 170A rating is adequate for stock Traverses and common accessory loads, delivering stable voltage for charging and electronics. Some buyers report consistently good fit and performance while others note occasional early failures, so longevity may vary by unit and installation. This alternator is a practical option for owners who want a tested aftermarket replacement that keeps factory charging capacity without upgrading electrical system components.
Best for: Risk-averse mainstream buyers who prioritize restoring factory charging performance with a tested aftermarket replacement and want post-purchase protection.
Less Ideal for: Owners seeking higher-capacity upgrades for heavy accessory use or those who prefer dealer-sourced factory parts and extended warranties should consider alternatives.
- 170 amp output matches factory charging capacity for the 3.6L Traverse
- Manufactured in ISO 9001 and IATF 16949 certified facilities
- Bench-tested with professional equipment before shipping
- One-year free replacement warranty for parts defects
- Designed as a direct-fit replacement for straightforward installation
- Some user reports of early failures indicate variable long-term reliability
- No extended warranty beyond the one-year replacement is specified
Verdict A practical, bench-tested 170A direct-fit alternator for 3.6L Chevrolet Traverse owners who want a tested aftermarket replacement with a one-year replacement policy.
6. PHILTOP 11250N Alternator, 155A 12V CW S6
| Amperage | 155 Amps |
|---|---|
| Voltage | 12 Volts |
| Rotation | CW |
| Groove Pulley | S6 |
This PHILTOP 11250N alternator is a direct-fit replacement designed to restore charging performance on compatible 3.6L GM vehicles such as the Chevrolet Traverse covered by the product fitment. It supplies 155 amps at 12 volts with a clockwise rotation and S6 groove pulley, so installation is a like-for-like swap where the pulley and connector layout match the factory unit. PHILTOP advertises endurance testing, salt-spray resistance, wide temperature tolerance, and built-in protections that aim to keep the charging system stable under heavy electrical loads and in harsh climates. In practice this means reliable charging for accessory-heavy usage and longer service life when installed correctly. Buyers should expect to reuse original mounting hardware and confirm pulley/groove and rotation against the vehicle before ordering. Some user reports show intermittent regulator or output variations on other vehicle applications, so expect to bench-test voltage and inspect the regulator after installation if charging is inconsistent.
Best for: Practical optimizers who want a value-minded, factory-style replacement that restores charging capacity without paying for a brand-name remanufactured unit.
Less Ideal for: Drivers seeking fully guaranteed dealer remanufactures or those unwilling to verify pulley rotation and connector fit before installation should consider alternatives.
- 155 amp output suitable for accessory-loaded Traverse electrical systems
- Factory-style fitment details (CW rotation, S6 pulley) simplify installation when matched to the vehicle
- Built to resist extreme temperatures, vibration, and salt spray for longer service life
- Includes overload protection and insulation measures to protect the vehicle electrical system
- Does not include mounting bolts or accessories so additional parts may be needed for installation
- Some users report intermittent voltage-regulator issues or noisy operation on certain vehicles
Verdict A cost-conscious, factory-matching 155A replacement for the Traverse that delivers solid durability if you confirm pulley and connector compatibility before installation.
7. ACDelco GM Genuine Parts Alternator (20881337)
| Manufacturer | ACDelco |
|---|---|
| Brand | GM GENUINE PARTS |
| Item model number | 20881337 |
| Is Discontinued By Manufacturer | Yes |
This ACDelco GM Genuine Parts alternator is a factory-quality replacement intended to match the original alternator's performance and fit. It supplies electrical power to the vehicle systems and charges the battery while the engine runs, and is designed, engineered, and tested to GM standards. Typical use is direct replacement during a charging-system repair; buyers report it fits cleanly and installs without modification on compatible vehicles. Notable features include GM validation, a machined exterior, and integrated cooling to help prevent overheating under load. The practical benefits are predictable fitment, OEM-level durability, and a plug-and-play installation for properly matched Chevrolet Traverse model years. Limitations are that correct application is critical since there are different alternator variants across model years and engine options, and the unit may not include minor fasteners that some installers expect. Confirm vehicle-year and engine compatibility before purchasing to avoid fitment issues.
Best for: Balanced all-round buyers who prioritize a factory-quality, direct-replacement alternator for routine charging-system repairs on their Chevrolet Traverse and want predictable fit and performance.
Less Ideal for: Anyone who needs a universal or multi-vehicle alternator solution or who prefers remanufactured or performance-upgraded units instead of a factory replacement should consider other options.
- Factory-validated replacement designed to match original charging performance
- Machined exterior and built-in cooling for reliable operation under typical driving loads
- Widely reported to install cleanly on matching GM applications without modification
- Discontinued by manufacturer status may limit future availability of the exact part number
- Different alternator variants mean a wrong-year/engine match can lead to fitment problems
- May ship without small hardware such as a mounting or terminal nut that some installations require
Verdict If you need a straightforward, factory-quality alternator for a compatible Chevrolet Traverse, this GM genuine unit delivers reliable, OEM-matched charging—just verify exact year and engine fitment first.
Choosing the Right Chevrolet Traverse Alternator: Key Factors to Consider
Rated Output and Voltage Regulation
An alternator's rated amperage and its ability to hold stable voltage under varying loads determine whether it can support the vehicle's electrical systems without overworking. Vehicles with more accessories or higher electrical demand need alternators with higher continuous output and tight regulation to prevent battery overcharge or undercharge.
Voltage regulation quality affects long-term battery life and electronics reliability. Look for specifications that show consistent output at idle and under load, and consider how the alternator performs when lights, HVAC, and infotainment are operating simultaneously.
Mechanical Fitment and Mounting
Correct physical fit matters because differences in mounting points, pulley alignment, or housing size can complicate installation or cause belt misalignment. A direct-fit alternator designed for the Chevrolet Traverse will reduce installation time and the risk of vibration or premature belt wear.
Consider the location of electrical connectors, cooling passages, and accessory drive orientation. Units that match factory mounting and connector types help ensure a straightforward swap without fabrication.
Internal Component Quality
Bearings, brushes, rectifier diodes, and the rotor/stator windings all influence longevity and noise. Higher-quality bearings reduce the chance of bearing failure or whining noises, while durable brushes and robust diodes help maintain consistent charging over many miles.
Inspecting the specification for serviceable components or better-grade internals can indicate whether the alternator will withstand stop-and-go driving, highway cruising, and exposure to heat over time.
Thermal Management and Cooling
Alternators generate heat during operation, and adequate cooling prevents thermal degradation of internal parts. Units with improved ventilation, cooling fins, or optimized internal airflow will often last longer, especially in hot climates or heavy-duty use.
Assess how the alternator is cooled and whether the design matches the Traverse's engine bay airflow. Overheating can accelerate wear on diodes and insulation, so prioritize designs that manage heat effectively.
Electrical Compatibility and Connector Type
Modern vehicles use specific connector types and sensing lines for proper charging control. Ensure the alternator supports the Traverse's electrical architecture, including any sense wires or signal connectors used by the charging system or engine control module.
Mismatched connectors can lead to charging faults or warning lights. Choosing an alternator that uses the same connectors and wiring layout reduces troubleshooting and ensures proper charge sensing.
Warranty and Serviceability
Warranty length and coverage give insight into expected reliability and the manufacturer's confidence in the part. Longer, clearer warranty terms reduce ownership risk and clarify remedies if the alternator fails prematurely.
Serviceability also matters for long-term ownership. Alternators that allow component-level repairs or offer rebuild kits can be more economical over time, but direct-fit, well-backed units reduce downtime and simplify maintenance.
FAQ
What are common alternator symptoms in a Chevrolet Traverse?
Common signs often include dim or flickering headlights, a battery warning light on the dash, or electrical accessories that behave erratically. You may also notice a weak or slow engine crank if the battery is not being charged properly. These symptoms usually appear gradually but can sometimes show more suddenly under heavy electrical load.
How can I test an alternator without specialized equipment?
You can observe basic indicators like battery voltage at rest and while the engine is running using a basic multimeter. Resting battery voltage near 12.6 volts and a running voltage between roughly 13.5 and 14.8 volts typically indicate charging. Listening for unusual noises and checking for a strong belt tension are also helpful preliminary checks. For definitive diagnosis, more complete testing at an auto shop is recommended.
Is it worth rebuilding an alternator versus getting a replacement?
Rebuilding can be economical if the core is compatible and internal components like bearings or diodes are the likely failure points. However, rebuilds depend on the quality of parts used and the skill of the technician. For many owners, a new direct-fit unit with a solid warranty may offer lower risk and less downtime, while rebuilds can be a viable option when cost and parts availability favor repair.
What should I mention when buying a replacement alternator for my Chevrolet Traverse?
Provide your Traverse's model year, engine type, and any relevant accessory or electrical package details. Also note connector types and pulley specifications if known. This information helps ensure correct fitment and electrical compatibility with the vehicle's charging system.
How long do alternators typically last in normal driving?
Alternator lifespan often depends on driving conditions and electrical load but commonly ranges from many tens of thousands of miles to over a hundred thousand miles. Factors such as heat exposure, stop-and-go traffic, and frequent short trips that prevent battery full charging can shorten service life. Regular inspections can catch wear before failure.
How We Chose the Best Chevrolet Traverse Alternator
To build this list we focused on alternators that meet the electrical and mechanical demands of the Chevrolet Traverse across common engine and trim configurations. Key factors included rated output and voltage regulation accuracy to ensure consistent charging under load, physical fitment and mounting points to avoid modification during installation, and the quality of internal components such as bearings and diodes that influence long-term durability. We also weighed manufacturer-specified compatibility, aftermarket warranty coverage, and the ease of installation when applicable. Excluded items included generic, unspecified units with uncertain fitment, alternators lacking clear output specifications, and parts intended only for heavy modification rather than direct replacement. The final selection centers on units that balance reliable electrical performance, proper mechanical fit, and serviceability for typical Traverse owners.
Our full evaluation process is outlined in our review methodology.
Conclusion
When choosing a Chevrolet Traverse alternator, prioritize correct mechanical fit and reliable electrical output. Balance rated amperage and voltage regulation against the vehicle's accessory load, and check that connectors and mounting match the Traverse configuration. Also weigh build quality and warranty coverage to manage long-term risk. If you drive in hot climates or carry heavy electrical loads, favor units with better cooling and durable internals even if it means longer lead time or more installation effort.
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