Engine Parts & Service

ARCO Marine

ARCO Marine Zeus A275L 3.15 Alternator w/Case Ground (Common Rail) Terminal Block [4020]

~~$1,124.20~~$986.70

ARCO Marine

ARCO Marine Zeus A8000-48V 8kW J180 4" Alternator w/Isolated Ground [4603]

~~$2,528.90~~$2,143.90

Zeus A8000-48V 8kW J180 4" Alternator with Isolated Ground

The ARCO Zeus A8000-48V alternator turns on at lower RPMs, runs cooler, and provides more power than other 48V alternators that are larger and heavier. This alternator continuously generates over 3kW (55 Amps)at 2,500 RPM and almost 6kW (111 Amps) at 4,000 Alternator RPM. Put in real-world terms, a marine diesel engine charging at 1,200 RPM with a 3.13:1 pulley ratio is generating just over 5kW (97 Amps), and a Mercedes Sprinter at 750 RPM with a 3.21:1 ratio is generating over 3kW (55 Amps)!

Instead of using rotors designed for 48 volts, many competitor alternators simply use their 12V rotors which is less efficient and limits output at all RPMs. In this scenario, your external smart regulator must drastically reduce field, by as much as 78%. If this is not done correctly, you run the risk of destroying the unit and damaging other components in your system. ARCO utilizes a native 48V rotor and field current. This results in our 48V alternator running cooler than competitor’s 48V alternators, having a direct impact on the alternator’s lifespan.

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:
Heat shedding coatings
Rectifier located on housing exterior
Dual cooling fans
OEM components
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, keeping the high amp alternator cooler for sustained amperage output.
Use the ARCO Zeus Bluetooth Alternator Regulator for maximum performance or lithium battery charging.
SAE J1171 Certified.
Proudly made in the U.S.A.

Technical Specifications:

Voltage - 48v
Field Type - P
Rotor Poles - 16
Stator Size - 138mm
Frame Size - Large
Weight - 15.89lbs/7.2kg
Regulation - External Only
Finish - (Black) E-coating
Cut-In RPM - 1,920 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, 80A Rated, Avalanche
Max Output (Cold, 9,000 RPM) at 53.5v - 180 Amps - 9,360 Watts – 14.8 kW PTO
Sustained Cruising Output (Hot, 6,000 RPM) at 53.5v - 138 Amps - 7,383 Watts – 10.5 kW PTO
Sustained Idle Output (Hot, 2,500 RPM) at 53.5v - 78 Amps 4,173 Watts – 6kW PTO
Max Continuous Operating Temperature - 100°C / 212°F

Mounting Application:

Replaces most Volvo Penta alternators using a 4” J180 saddle-style mount. Also, used on many larger industrial-based engines.

Quick Guide (pdf)
Brochure (pdf)

ARCO Marine

ARCO Marine Zeus A275L J-180 4" Alternator w/Terminal Block [4022]

~~$1,124.20~~$986.70

Zeus A275L J-180 4" Alternator with Terminal Block

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.
It runs 8 - 20% cooler than incumbent alternators due to heat-shedding coatings, a refrigerator on the housing exterior, dual cooling fans, and 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 or lithium battery charging for maximum performance.
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 - External Only (These units will come with a terminal block and a P-Type harness. They will only work with an external regulator, such as an ARCO Zeus Bluetooth alternator regulator.)
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 most Volvo Penta alternators using a 4” J180 saddle-style mount

Quick Guide (pdf)

ARCO Marine

ARCO Marine Zeus 24V 7kW J180 4" Alternator w/Isolated Ground [4503]

~~$1,648.90~~$1,427.80

Zeus 24V 7kW J180 4" Alternator with Isolated Ground

The ARCO Zeus 24v 7kW alternator generates extremely high amperage at cruising and higher RPMs. This alternator continuously generates over 3kW (109 Amps) at just under 3,000 alternator RPM and almost 6kW (218 Amps) at under 6,000 RPM. In real-world terms, a marine diesel engine at 1,500 RPM with a 2:1 pulley ratio generates over 3kW, and a Mercedes Sprinter at 1,800 RPM with a 3.21:1 ratio generates over 6kW!

The ARCO Zeus 24v 7kW alternator turns on for cruising or at mid to higher RPMs, runs cooler, and provides more power than older designs that are larger and heavier. The newest generation of 24V performance has arrived.

Competitor’s 24V alternators utilize a 12V rotor and field current which is less efficient and limits output at all RPMs. ARCO utilizes a native 24V rotor and field current. This results in our 24V alternator running cooler than competitor’s 24V alternators, having a direct impact onthe alternator lifespan.

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:
Heat shedding coatings
Rectifier located on housing exterior
Dual cooling fans
OEM components
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, keeping the high amp alternator cooler for sustained amperage output.
Use the ARCO Zeus Bluetooth Alternator Regulator for maximum performance or lithium battery charging.
SAE J1171 Certified.
Proudly made in the U.S.A.

Technical Specifications:

Voltage - 24v
Field Type - P
Rotor Poles - 16
Stator Size - 138mm
Frame Size - Large
Weight - 15.89lbs/7.2kg
Regulation - External Only
Finish - (Black) E-coating
Cut-In RPM - 1,962 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, 80A Rated, Avalanche
Max Output (Cold, 9,000 RPM) at 27.5v - 284 Amps - 7,810 Watts – 11.2 kW PTO
Sustained Cruising Output (Hot, 6,000 RPM) at 27.5v - 220 Amps - 6,050 Watts – 8.6kW PTO
Sustained Idle Output (Hot, 3,000 RPM) at 27.5v - 50 Amps 1,375 Watts – 2kW PTO
Max Continuous Operating Temperature - 100°C / 212°F

Mounting Application:

Replaces most Volvo Penta alternators using a 4” J180 saddle-style mount. Also, used on many larger industrial-based engines.

Quick Guide (pdf)
Brochure (pdf)

Regitar U.S.A.

Regitar USA Marine Fuel Pump Assembly f/Volvo Penta: Fits Most 8.1L Engines [RFP002]

~~$905.52~~$649.99

ARCO Marine

ARCO Marine Zeus A8000-48V 8kW N62 Alternator w/Clutch Pulley [4604]

~~$2,308.90~~$1,978.90

Zeus A8000-48V 8kW N62 Alternator with Clutch Pulley

The ARCO Zeus A8000-48V alternator turns on at lower RPMs, runs cooler, and provides more power than other 48V alternators that are larger and heavier. This alternator continuously generates over 3kW (55 Amps)at 2,500 RPM and almost 6kW (111 Amps) at 4,000 Alternator RPM. Put in real-world terms, a marine diesel engine charging at 1,200 RPM with a 3.13:1 pulley ratio is generating just over 5kW (97 Amps), and a Mercedes Sprinter at 750 RPM with a 3.21:1 ratio is generating over 3kW (55 Amps)!

Instead of using rotors designed for 48 volts, many competitor alternators simply use their 12V rotors which is less efficient and limits output at all RPMs. In this scenario, your external smart regulator must drastically reduce field, by as much as 78%. If this is not done correctly, you run the risk of destroying the unit and damaging other components in your system. ARCO utilizes a native 48V rotor and field current. This results in our 48V alternator running cooler than competitor’s 48V alternators, having a direct impact on the alternator’s lifespan.

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:
Heat shedding coatings
Rectifier located on housing exterior
Dual cooling fans
OEM components
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, keeping the high amp alternator cooler for sustained amperage output.
Use the ARCO Zeus Bluetooth Alternator Regulator for maximum performance or lithium battery charging.
SAE J1171 Certified.
Proudly made in the U.S.A.

Technical Specifications:

Voltage - 48v
Field Type - P
Rotor Poles - 16
Stator Size - 138mm
Frame Size - Large
Weight - 15.89lbs/7.2kg
Regulation - External Only
Finish - (Black) E-coating
Cut-In RPM - 1,920 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, 80A Rated, Avalanche
Max Output (Cold, 9,000 RPM) at 53.5v - 180 Amps - 9,360 Watts – 14.8 kW PTO
Sustained Cruising Output (Hot, 6,000 RPM) at 53.5v - 138 Amps - 7,383 Watts – 10.5 kW PTO
Sustained Idle Output (Hot, 2,500 RPM) at 53.5v - 78 Amps 4,173 Watts – 6kW PTO
Max Continuous Operating Temperature - 100°C / 212°F

Mounting Application:

Replaces factory dual alternator on many Sprinter RVs, including Roadtrek, Thor, Winnebago, and others. For all Mercedes Sprinter applications with the N62 option. Meets current Mercedes Upfitter weight and PTO requirements.

Quick Guide (pdf)
Brochure (pdf)

ARCO Marine

ARCO Marine Zeus A225S J-180 3.15" Alternator w/Terminal Block [4010]

~~$874.50~~$767.80

ARCO Marine

ARCO Marine Zeus 24V 7kW 3.15 Alternator w/Isolated Ground (Common Rail) [4502]

~~$1,648.90~~$1,427.80

Zeus 24V 7kW 3.15 Alternator with Isolated Ground (Common Rail)

The ARCO Zeus 24v 7kW alternator generates extremely high amperage at cruising and higher RPMs. This alternator continuously generates over 3kW (109 Amps) at just under 3,000 alternator RPM and almost 6kW (218 Amps) at under 6,000 RPM. In real-world terms, a marine diesel engine at 1,500 RPM with a 2:1 pulley ratio generates over 3kW, and a Mercedes Sprinter at 1,800 RPM with a 3.21:1 ratio generates over 6kW!

The ARCO Zeus 24v 7kW alternator turns on for cruising or at mid to higher RPMs, runs cooler, and provides more power than older designs that are larger and heavier. The newest generation of 24V performance has arrived.

Competitor’s 24V alternators utilize a 12V rotor and field current which is less efficient and limits output at all RPMs. ARCO utilizes a native 24V rotor and field current. This results in our 24V alternator running cooler than competitor’s 24V alternators, having a direct impact on the alternator lifespan.

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:
Heat shedding coatings
Rectifier located on housing exterior
Dual cooling fans
OEM components
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, keeping the high amp alternator cooler for sustained amperage output.
Use the ARCO Zeus Bluetooth Alternator Regulator for maximum performance or lithium battery charging.
SAE J1171 Certified.
Proudly made in the U.S.A.

Technical Specifications:

Voltage - 24v
Field Type - P
Rotor Poles - 16
Stator Size - 138mm
Frame Size - Large
Weight - 15.89lbs/7.2kg
Regulation - External Only
Finish - (Black) E-coating
Cut-In RPM - 1,962 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, 80A Rated, Avalanche
Max Output (Cold, 9,000 RPM) at 27.5v - 284 Amps - 7,810 Watts – 11.2 kW PTO
Sustained Cruising Output (Hot, 6,000 RPM) at 27.5v - 220 Amps - 6,050 Watts – 8.6kW PTO
Sustained Idle Output (Hot, 3,000 RPM) at 27.5v - 50 Amps 1,375 Watts – 2kW PTO
Max Continuous Operating Temperature - 100°C / 212°F

Mounting Application:

Must Be Used on Yanmar Common Rail Engines Introduced after 2013 (JH-CR, 3JH40, 4JH45, 4JH57, 4JH80, 4JH110).

Quick Guide (pdf)
Brochure (pdf)