Our Top 3 Picks
You are not here to run a research project. You are here to find an Alternator that works and get on with it – these 3 are the ones we picked.
#1 – 105 Amp Alternator for Acura CSX CR-V TSX
Best for: Owners of 2003-2011 models requiring a high-compatibility fit.
- Compatible with 2006-2011 CR-V 2.4L
- $111.99 mid-range
- 4.2 rating from 771 ratings
- Editorial score: 8.6/10
Amperage Output: 105 Amp · Voltage: 12.0 Volt
#2 – Alternator for TSX Accord
Best for: Drivers needing a high-output 130 Amp supply for newer TSX models.
- 130 Amp output
- $105.99 mid-range
- 4.2 rating from 691 ratings
- Editorial score: 8.8/10
Amperage Output: 130 Amp · Voltage: 12.0 Volt
#3 – DB Electrical Alternator for Acura RSX
Best for: Owners of 2002-2006 RSX models seeking an internal regulator design.
- Internal regulator location
- $101.37 entry-level
- 4.1 rating from 372 ratings
- Editorial score: 8.6/10
Amperage Output: 90 · Voltage: 12
You can view our full SCITOO 11341 Alternator review for a detailed spec breakdown.
How Carworship picked: we started from the 200 most-reviewed alternator listings in our retail dataset, removed duplicates, accessories and off-category products, and 142 qualified. The picks on this page were selected from those 142 candidates against this topic’s requirements. Our scores blend buyer satisfaction (60%), price position against comparable products (25%) and rating volume (15%). Specifications come from manufacturer listings and ratings from verified Amazon buyer reviews (data checked August 2026).
Our Verdict and How We Chose
The 105 Amp Alternator for Acura CSX CR-V TSX is the top replacement Alternator for Acura because it supports a wide range of models including the CSX, CR-V, and TSX.
Finding a replacement that matches the specific amperage and voltage requirements of an older Acura can lead to battery drain or “alternator warning” lights if the output is insufficient. These symptoms often indicate the current unit can no longer handle the vehicle’s electrical load.
The 105 Amp Alternator for Acura CSX CR-V TSX provides a reliable 105 Amp output for owners of CSX or CR-V models. If you require the higher 130 Amp output for a TSX or Accord, the Alternator for TSX Accord is the better choice, while the DB Electrical Alternator for Acura RSX serves those needing a 90 Amp unit with an internal regulator.
At Carworship we evaluated the alternator options we track against this topic’s criteria. The selected units cover a price range from $101.37 to $111.99, with a median price of $111.99 across the comparison.
What the data says
- Top pick: 105 Amp Alternator for Acura CSX CR-V TSX at $111.99 (Amperage Output: 105 Amp).
- Also picked: Alternator for TSX Accord at $105.99; DB Electrical Alternator for Acura RSX at $101.37.
- We compared 4 Alternators, from $101.37 to $117.79, median $111.99.
- Best buyer rating in the comparison: 105 Amp Alternator for Acura CSX CR-V TSX at 4.2/5 from 771 ratings.
- Not covered by these picks: Power high-output accessories on an Acura – needs 200 Amp, and nothing on this page reaches it.
Full Comparison Table
| Product | Price | Rating | Amperage Output | Amperage Output | Voltage |
|---|---|---|---|---|---|
| 105 Amp Alternator for Acura CSX CR-V TSX | $111.99 | 4.2 (771 ratings) | 105 Amp | 105 Amp | 12.0 Volt |
| Alternator for TSX Accord | $105.99 | 4.2 (691 ratings) | 130 Amp | 130 Amp | 12.0 Volt |
| DB Electrical Alternator for Acura RSX | $101.37 | 4.1 (372 ratings) | 90 | 90 | 12 |
| SCITOO 11604 Alternator for Acura ILX Honda CR-V Civic | $117.79 | 3.5 (368 ratings) | 120Amp | 120Amp | 12V |
Prices are approximate and move frequently – check the current price before deciding. “Not stated” means the manufacturer listing does not give that figure – we do not estimate it.
The Alternator for TSX Accord offers the strongest price-to-spec ratio because it provides the highest 130 Amp output for the lowest price of the high-output options.
The Picks Reviewed in Detail
The 3 picks below run from $101.37 to $111.99, reviewed in rank order.
105 Amp Alternator for Acura CSX CR-V TSX
The 105 Amp Alternator for Acura CSX CR-V TSX made our list because it offers a high 4.2 rating and broad compatibility across multiple Acura models, including the CSX, TSX, and CR-V.
What we like: This unit provides a 105 Amp output at 12.0 Volts, ensuring consistent power for the 2.0L and 2.4L engines it supports. It is a versatile choice for owners of the 2006-2011 CSX or the 2003-2011 Element, matching a wide range of OEM replacement part numbers like 13980N.
Keep in mind: This alternator is specifically for 2.0L and 2.4L engine configurations; you must verify your engine displacement before ordering to ensure the 105 Amp output meets your vehicle’s requirements.
Alternator for TSX Accord
We selected the Alternator for TSX Accord because it provides a higher 130 Amp output for owners of the TSX and Accord who require more robust electrical capacity.
What we like: The 130 Amp rating provides a significant power overhead compared to the 105 Amp and 90 Amp alternatives we evaluated. It features a 7-groove pulley and a clockwise rotation direction, designed to fit the 2.4L L4 engines in 2008-2014 TSX and Accord models.
Keep in mind: While the 130 Amp output is substantial, the data does not specify the inclusion of an overrunning clutch; you should confirm if your specific engine requires one to prevent pulley seizure.
DB Electrical Alternator for Acura RSX
The DB Electrical Alternator for Acura RSX is included for its specialized fitment on the 2002-2006 RSX and its internal regulator design.
What we like: This unit features an internal regulator and is engineered to meet OEM specifications for the RSX and Honda CR-V. It maintains a 4.1 rating from 372 buyers, providing reliable 90 Amp output at 12 Volts.
Keep in mind: With a 90 Amp output, this is the lowest amperage option of the three; it is best suited for standard electrical loads and may not be sufficient for vehicles with high-draw aftermarket accessories.
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The Specs That Decide This Purchase
OEM Bolt Pattern Compatibility
OEM bolt pattern compatibility ensures the unit mounts to your Acura engine block without modifying the bracket. You must verify that your replacement part matches the specific mounting points for your model, as Acura engines often have unique layouts that make universal fits impossible. The SHICHU 105 Amp Alternator is a direct fit for 2006-2011 CSX and CR-V models, while the DB Electrical Alternator replaces specific OEM numbers like 31100-PNC-004 for RSX owners.
Cold Cranking Amps (CCA) Support
Cold cranking amps (CCA) support depends on the alternator’s ability to maintain a steady charge during high-draw starts. For vehicles with high-powered audio or auxiliary lights, you need a higher amperage output to prevent battery drain. The SHICHU 130 Amp Alternator provides the highest output in our comparison, making it the strongest choice for heavy accessory loads. The DB Electrical Alternator provides 90 Amps, which is sufficient for standard RSX electrical systems but may have less overhead for extreme aftermarket modifications.
Internal Cooling Fan Design
Internal cooling fan design determines how the alternator manages heat during sustained operation. Look for units with internal regulators and integrated fans to ensure consistent voltage under load. The DB Electrical Alternator features an internal regulator location to help maintain thermal stability. If your specific model does not list an internal fan, confirm the cooling requirements for your engine bay temperature before ordering.
Plug-and-Play Wiring Harness
Plug-and-play wiring harness compatibility means the unit connects to your existing factory wiring without cutting or splicing. This is a critical check because incorrect connector pin configurations can cause electrical shorts. The SHICHU 130 Amp Alternator supports the 2008-2014 TSX and 2008-2012 Accord, ensuring a direct connection. Always verify that the replacement part number, such as the SHICHU 104210-5890, matches your vehicle’s factory plug configuration.
Duty Cycle Endurance
Duty cycle endurance is the ability of the alternator to provide consistent power over long periods without overheating. For older Acura models, choosing a part engineered to meet OEM specifications ensures the unit can handle the daily electrical cycle. The DB Electrical Alternator is engineered to meet OEM specifications, providing a reliable baseline for durability. For high-demand use, the SHICHU 130 Amp model separates the field by offering a higher amperage ceiling to handle prolonged electrical stress.
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What You Need vs What These Picks Deliver
Match the job you actually need done to what it requires, then check whether anything on this page reaches that level. Where nothing does, the row says so.
| What you want to do | What that needs | What clears it here |
|---|---|---|
| Replace an alternator for a TSX or Accord | 130 Amp | Alternator for TSX Accord |
| Power high-output accessories on an Acura | 200 Amp | None of these; requires a high-output heavy duty alternator |
| Replace an alternator for an older RSX | 90 Amp | DB Electrical Alternator for Acura RSX |
Thresholds are the levels this category is generally held to, not manufacturer claims. Check them against your own workload before buying.
Who Buys Alternators, and What It Really Costs
Who buys an Alternator, and what each one needs
- Daily commuters — reliable internal voltage regulation to handle heat dissipation during stop-and-go traffic
- Off-road explorers — high-output heavy duty capacity to support winches and auxiliary lighting
- Fleet owners — OEM benchmark noise levels and precise amperage curves for long-term reliability
- DIY mechanics — specific connector pin configurations to ensure a perfect seat and prevent electrical shorts
What to budget for on top of the Alternator
- Serpentine belt — required to prevent pulley diameter mismatch and belt slippage
- Wiring harness — necessary to ensure compatibility with the specific connector pin configuration
- Battery — required to work in tandem with the alternator to prevent amperage deficits
- Installation tools — needed to properly seat the unit and verify the plug-and-play capability
What you can leave out of the budget
- External voltage regulators — unnecessary as the unit handles load spikes internally
- Universal adapters — unnecessary if the connector pin configuration matches the vehicle’s specific plug
Where this kind of product is normally sold
- Auto parts retailers — provides local warranty handling and immediate installation compatibility checks
- Online marketplaces — offers a wider selection of high-output heavy duty options but requires careful verification of pin configurations
- Specialty import shops — ensures the unit meets the specific OEM benchmarks for Acura electrical systems
Buying Questions Answered
Replacement Cost vs. OEM Pricing
A high-quality remanufactured alternator typically costs significantly less than a new OEM part from a dealership. The DB Electrical Alternator for Acura RSX provides a 90 Amp output for around $101.37, offering a lower-cost alternative to factory-original components while meeting OEM specifications.
Reliability After Installation
New alternators may fail shortly after installation if the wiring harness is damaged or the ground connection is poor. Before installing a new unit, you should confirm that the wiring and ground points are clean and free of corrosion to ensure the alternator receives proper power.
Which alternator should I buy for my Acura?
Your choice depends on the specific model and electrical needs of your vehicle. The SHICHU 130 Amp Alternator for TSX Accord provides a higher amperage output for around $105.99, while the SHICHU 105 Amp Alternator for Acura CSX CR-V TSX serves a wider range of models for $111.99.
Is the DB Electrical Alternator compatible with my RSX?
Yes, the DB Electrical Alternator for Acura RSX is engineered to replace OEM numbers including 31100-PNC-004 and 31100-RJJ-004. It provides a 90 Amp output and features an internal regulator for a direct fit on 2002-2006 RSX models.
Does the SHICHU 130 Amp unit support my Accord?
Yes, the SHICHU Alternator for TSX Accord is compatible with 2008-2012 Accord 2.4L L4 models. It provides a 130 Amp output and is designed to rotate clockwise with a 7-groove pulley.
Is a remanufactured alternator a good value?
A remanufactured unit is often a cost-effective choice when the purchase price is lower than a new dealership part. The DB Electrical Alternator for Acura RSX is priced at $101.37 and is engineered to meet OEM specifications for reliable performance.
Understanding your options is easier when you learn about the different types of alternators available.
Who Should Skip These Alternators
Buyers often order an alternator with a pulley diameter that does not match their existing serpentine belt system. A pulley diameter mismatch causes belt slippage or premature wear on the belt. You must confirm that the pulley specifications match your current setup before ordering.
You should confirm your vehicle’s specific amperage requirements before purchasing. If you need to power high-output accessories on an Acura, you require a 200 Amp system, and none of the options on this page reach that threshold. These units are intended for standard electrical loads and do not provide the high-output capacity required for heavy-duty electrical draws.
If you require a heavy-duty high-output alternator for specialized electrical needs, you should look for a dedicated high-output aftermarket upgrade. These units are engineered to handle the high amperage curves required by winches and large auxiliary systems that exceed the standard 130 Amp limit found here.