ARCO Marine Zeus A275L Transit Alternator w/Regulator [A275L-12-TR-IE-49K6]
SKU: 5553945694

ARCO Marine Zeus A275L Transit Alternator w/Regulator [A275L-12-TR-IE-49K6]

Sale price$382.50 Regular price$425.00
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Shipping Estimate
USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Jul 7 - Jul 12

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Description

ARCO Marine Zeus A275L Transit Alternator w/Regulator [A275L-12-TR-IE-49K6]Zeus A275L Transit Alternator with Regulator The highest power output alternator in its size class. Features: Engineered for High Energy Production. Suitable for Marine, RV, Military, and Commercial applications. Rapidly charges large battery banks. Coolest operating temperatures for increased performance. Runs 8 20% cooler than incumbent alternators due to: Heat shedding coatings Rectifier located on housing exterior Dual cooling fans OEM Components

Zeus A275L Transit Alternator with Regulator

The highest power output alternator in its size/class. 

Features:

  • Engineered for High Energy Production.
  • Suitable for Marine, RV, Military, and Commercial applications.
  • Rapidly charges large battery banks.
  • Coolest operating temperatures for increased performance. Runs 8 - 20% cooler than incumbent alternators due to:

   - Heat shedding coatings

   - Rectifier located on housing exterior

   - Dual cooling fans

   - OEM Components

  • It is optimized for performance at idle speeds.
  • Reduces the need for a generator by creating additional power with your engine.
  • Unleash peak performance with E-Coat/Cerakote. Our advanced coating absorbs less heat, keeping the A275L cooler. This translates to more amperage for sustained periods.
  • Use an ARCO Zeus Bluetooth alternator regulator for maximum performance or lithium battery charging.
  • SAE J1171 Certified.
  • Made in the U.S.A.

Technical Specifications:

  • Voltage - 12v
  • Field Type - P
  • Rotor Poles - 16
  • Stator Size - 138mm
  • Frame Size - Large
  • Weight - 14.9 lbs/6.7 kg
  • Regulation - Internal/External (Internally regulated with adaptor for optional external regulation.) 
  • Output Voltage - 14.1v (Default)
  • Finish - (Black) Cerakote or E-coating
  • Cut-In RPM - 1,061 Alternator RPM
  • Maximum Alt RPM - 19,000
  • Battery Post - M8 Thread Post, Side Mount
  • Standard Pulley - 49K6 (6-groove, 49mm)
  • Pulley Mount - 17mm diameter shaft, 25mm long, threaded M17 x 1.5
  • Pulley Hardware - M17 x 1.5 x 24mm nut, w/ 18mm ID x 29mm OD washer (Included)
  • Diodes - 6 positive, 6 negative, 50A Rated, Avalanche
  • Max Output (Cold, 9,000 RPM) - 311 Amps
  • Sustained Cruising Output (Hot, 6,000 RPM) - 227 Amps
  • Sustained Idle Output (Hot, 3,000 RPM) - 198 Amps
  • Max Continuous Operating Temperature - 110°C / 230°F

Mounting Application:

  • Replaces Ford Transit alternators 3.5L & 3.7L Gas engines 2015-2022
This product may not be returned to the original point of purchase. Please contact the manufacturer directly with any issues or concerns.
Quick Guide (pdf)
Brochure (pdf)
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 5553945694

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Verified Purchase
Jose Quispe
Massapequa, US
★★★★★ 5
Easy to install
Good material easy to install
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 25, 2026
T
Verified Purchase
Tristen Napaluch
Alexandria, US
★★★★★ 5
They look nice.
Makes the car look nice 😎
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Reviewed in the United States on February 4, 2026
C
Christine Lopez
Los Angeles, US
★★★★★ 5
No polarity and super bright.
Size: 194/T10, Color: White
Quick installation. Turned my halogen lights into led lights. No issues with polarity and no error codes. The license plate light shine much more bright than halogen lights. Amazing upgrade. Great price and highly recommend.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 3, 2026
D
Dakota pope
Battle Creek, US
★★★★★ 5
Affordable and hassle-free
Size: 921/912, Color: White
These reverse lights are super bright! The old bulbs left things practically pitch-black for night driving, total game-changer once these went in. Affordable, hassle-free upgrade that makes all the difference.
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Reviewed in the United States on March 3, 2026
J
Jacuqeline Baker
Whiting, US
★★★★★ 5
Super bright, I love them
Size: 194/T10, Color: White
Got these to replace the interior lights on my car. They are amazing bright. Will buy again.
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Reviewed in the United States on March 5, 2026

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