The more you spend, the greater selection of free gifts you'll have at your fingertips when selecting items in your shopping cart!
Direct OEM Replacement – Bolt-in fit for Ram pickup trucks with HEMI engines; no custom brackets or modifications needed.
Massive Output – Delivers 200+ amps at idle and 370+ amps at cruising speed to power high-demand electrical systems.
Advanced 6-Phase Technology – Features hairpin stator and 12 press-fit diodes for superior efficiency and long-term durability.
CNC-Machined Billet Housing – Precision-built for strength, heat dissipation, and a premium finish.
Installation Note – Includes smaller 1.75” pulley; a slightly shorter drive belt is required (not recommended for sustained use above 5,000 RPM).
370-Amp Billet High Output Alternator for Dodge Ram HEMI Direct Fit Mechman
This listing includes:
(1) 370-Amp Billet High Output Alternator for Dodge Ram HEMI Direct Fit Upgrade
Maximize Your Power — 370-Amp E Series High Output Alternator for Ram HEMI
Upgrade your Ram pickup’s electrical system with confidence. The 370-Amp E Series alternator is a direct bolt-in replacement for OEM alternators on Ram trucks with HEMI engines, delivering serious power where it counts. Expect over 200+ amps at engine idle and a massive 370+ amps at cruising speed, giving you the performance you need for demanding electrical setups like aftermarket audio systems, lighting, and accessories.
Built for durability, this alternator features advanced 6-phase hairpin technology and 12 heavy-duty press-fit diodes, ensuring reliable output under tough conditions.
Key Features
Direct bolt-in replacement for Ram HEMI OEM alternators
200+ amps at idle / 370+ amps at cruising speed
6-phase hairpin stator for efficient, high-output performance
12 press-fit diodes for maximum durability
CNC-machined billet housing for strength and style
Includes smaller 1.75" alternator pulley
Important Notes
A slightly shorter drive belt than stock is required due to the smaller pulley
Not recommended for sustained engine speeds over 5,000 RPM
Whether you're powering a custom audio system or additional electrical accessories, this alternator is designed to keep up — and keep you moving.
Accepted Payment Methods at Big Jeff Audio
At Big Jeff Audio, we strive to make your shopping experience as smooth as possible by offering a wide variety of payment options. Below is a complete list of the payment methods we accept:
Credit and Debit Cards
Visa
Mastercard
American Express
Discover
Diners Club
Digital Wallets
Amazon Pay
Apple Pay
Meta Pay (formerly Facebook Pay)
Google Pay
Shop Pay
PayPal
International Payment Methods
Bancontact
iDEAL
Bank Transfers
Zelle
Financing Options
We also offer financing options to make purchasing easier. Learn more about our financing options here.
Klarna
Affirm
Sezzle
Snap
Acima
Tiptop
If you have any questions or need assistance with payments, feel free to reach out to us at info@bigjeffaudio.com or call us at 737-BIG-JEFF.
Shipping Options and Delivery Time
Do You Offer Expedited Shipping?
Yes! At checkout, you can select from different shipping options:
Standard Shipping: Free for orders over $100.
Expedited Shipping: Available at an additional cost, calculated based on the weight and destination of your order.
How Long Does Delivery Take?
Handling Time: Most orders are processed and shipped within 1 business day after receiving cleared payment. Occasionally, additional handling time may be required, but we’ll notify you if that’s the case.
Standard Shipping: Typically takes 3-5 business days, though delivery may be affected by extreme weather or holidays.
What Happens If My Package Is Undeliverable?
If your package is refused or marked undeliverable and returned to us by the carrier, you’ll need to pay the full shipping cost to have the package resent. Alternatively, we can refund your order, minus the cost of shipping.
Why Can’t I Track My Order?
If you're having trouble tracking your order:
Make sure you’ve received the shipping confirmation email with the tracking number.
Log into your account on our website and use the “Check Your Order Status” button.
If the issue persists, please refer to our detailed guide on tracking your order or contact our customer service team for further assistance.
