12V DC 37A - 65A Output OEM-Compatible Carrier Alternator for Thermo King and

Product Specification

45-2256 Thermo King 45-2258 45-2254 41-2194 Alternator Carrier Alternator 30-50340-00 29-50340-00

Product Overview

This heavy-duty alternator is designed for Thermo King and Carrier Transicold transport refrigeration units, delivering reliable 12V power for compressors, fans, control modules, and battery charging. Built to match OEM specifications, it ensures continuous operation of the refrigeration system during long-haul transport, even in extreme weather and high-vibration conditions.

The unit is a direct-fit replacement, requiring no modifications during installation, making it ideal for fleet maintenance, service centers, and cold chain logistics operators who demand long-lasting performance and minimal downtime.

Key Features

• OEM-Compatible Design – Fully meets Thermo King and Carrier factory standards for size, mounting, and electrical connections.

• High Output Power – Provides stable 12V charging current to support refrigeration system loads and vehicle battery requirements.

• Durable Construction – High-strength aluminum alloy housing withstands heat, vibration, and moisture.

• Efficient Cooling – Built-in fan cooling system ensures safe operating temperatures during long continuous use.

• Maintenance-Free Bearings – Pre-lubricated sealed bearings reduce maintenance frequency and enhance service life.

• Easy Installation – Direct replacement for original parts; no rewiring or modifications needed.

Technical Specifications

Compatible Refrigeration Units

Thermo King

• SB Series: SB-200, SB-210, SB-300, SB-310, SB-II, Super II

• MD / RD Series

• SuperFreezer, Sentry Series

• Other Thermo King units with compatible alternators

Carrier Transicold

• X2 / X4 Series

• Supra 550 / 750

• Genesis / Vector / Ultra Series

• Other Carrier transport refrigeration units requiring these alternator models

Installation Guidelines

1. Disconnect Power – Always disconnect the negative battery terminal before installation.

2. Remove Old Alternator – Release belt tension and carefully remove the existing unit.

3. Install New Alternator – Mount the new alternator in the original position and reconnect all cables.

4. Adjust Belt Tension – Ensure correct belt tension to avoid slippage or premature wear.

5. Output Testing – After installation, start the unit and check charging voltage with a multimeter.

Application & Benefits

• Provides continuous and stable power for transport refrigeration systems, ensuring reliable cooling during long-distance delivery.

• Ideal for fleet operators, cold chain logistics companies, and refrigeration service centers requiring OEM-quality replacements.

• Offers a cost-effective alternative to original parts without compromising performance or reliability.

FAQ

Q1:When will you arrange the delivery?

A:Generally 1-2 weeks after the payment, and we will continually inform customer the goods carriage status, until you receive the goods.

Q2. Do you test all your goods before delivery?

A: Yes, we have 100% test before delivery.

Q3:Can we get the some technological training?

Our company provide the complete technological training, including: installation, use and maintenance.

Q4:How long is your products warranty?

A:The products of our lifetime for you to provide maintenance, one year warranty,Courier fees to pay half, after a year of maintenance fees shall be borne by the buyers.

Q5: How do you make our business long-term and good relationship?

A:1. We keep good quality and competitive price to ensure our customers benefit ; 2. We respect every customer as our friend and we sincerely do business and make friends with them, no matter where they come from.