Description
ARCO Marine 70A Alternator w/ 65mm Pulley | Boat Supply Store
Restore critical charging system functionality with this ARCO Marine Premium Replacement Alternator, engineered as a direct fit for specific Mercruiser applications. This unit delivers a robust 12 Volt, 70 AMP output and features an integrated 65mm multi-groove serpentine pulley for seamless belt engagement. It provides a high-quality, reliable solution for boat owners and mechanics maintaining Mercruiser 4.3L to 8.2L engines manufactured from 1998 onward, ensuring consistent power for onboard systems offshore.
Key Features
- Engineered for performance and reliability.
- Manufactured with precision and quality standards.
- Meets or exceeds OEM performance specifications.
- Includes pre-installed 65mm multi-groove serpentine pulley.
- Delivers 12 Volt, 70 AMP electrical output.
- Features an internal fan for optimal cooling.
- Direct replacement for specified Mercruiser applications.
- Backed by a comprehensive warranty program.
Specifications
| Product Specifications | |
|---|---|
| Voltage | 12V |
| Amperage | 70A |
| Pulley Type | 65mm Multi-Groove Serpentine |
| Internal Fan | Yes |
| Engine Compatibility | Mercruiser 4.3L - 8.2L, 1998-Up |
| Replaces Part Numbers | Delco, Mercury, Sierra, Protorque, MPP-Parts |
Who This Is For
Marine mechanics and boat owners with Mercruiser engines (4.3L - 8.2L, 1998-Up) requiring a dependable, high-specification electrical component. It's ideal for those prioritizing OEM-level performance and longevity in their vessel's charging system.
How It Compares
| Feature | ARCO Marine 70A Alternator w/ 65mm Pulley | Sierra 18 |
|---|---|---|
| Voltage | 12V | 12V, 12V |
| Amperage | 70A | 70A, 70A |
| Pulley Type | 65mm Multi-Groove Serpentine | Multi-Groove, Multi-Groove |
| Internal Fan | Yes | Yes, Yes |
| Warranty (Leisure) | 12 Months | 12 Months, 12 Months |
Common Concerns Answered
How can I confirm the exact pulley groove count for my application?
While this unit features a 65mm multi-groove serpentine pulley, we recommend visually inspecting your existing pulley or consulting your engine's service manual to confirm compatibility. This ensures a precise match for your serpentine belt system.
What if this alternator doesn't fit my specific or modified engine setup?
This alternator is designed as a direct replacement for specified Mercruiser applications and generally exhibits excellent fitment. However, for highly customized or non-standard engine configurations, a visual comparison of mounting points and dimensions against your current unit is advised to preempt potential fitment challenges.
Is the price higher than generic alternatives?
While pricing may appear higher than generic options, the ARCO Marine brand is synonymous with premium quality, reliability, and performance that meets or exceeds OEM standards, providing long-term value and peace of mind for critical marine electrical systems.
Frequently Asked Questions
What is the amperage output of the ARCO Marine Premium Replacement Alternator?
The ARCO Marine Premium Replacement Alternator provides a 70 AMP output.
What type of pulley does this alternator come with?
This alternator comes equipped with a pre-installed 65mm multi-groove serpentine pulley.
What Mercruiser engine sizes is this alternator compatible with?
This alternator is compatible with Mercruiser 4.3L through 8.2L engines manufactured from 1998 onwards.
What is the warranty period for this ARCO Marine alternator?
The standard warranty period for this ARCO Marine alternator is 12 months, with an optional extended coverage program available.
Can I return this product to the original point of purchase if I have an issue?
Yes, returns for issues are handled through the original point of purchase, adhering to their established return policy. This ensures a streamlined process for addressing any product concerns.
