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
| Item | Details |
|---|
| Compatible Models | Thermo King 45-2256 / 45-2258 / 45-2254 / 41-2194; Carrier
30-50340-00 / 29-50340-00 |
| Operating Voltage | 12V DC |
| Output Current | 37A – 65A (varies by sub-model) |
| Housing Material | High-strength aluminum alloy |
| Bearing Type | Sealed maintenance-free ball bearing |
| Cooling Method | Internal fan forced cooling |
| Installation | Direct bolt-on replacement |
| Product Condition | 100% brand new (not refurbished) |
| Recommended Warranty | 6–12 months (depending on supplier policy) |
| Packaging | Standard export carton or OEM packaging |
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
Installation Guidelines
Disconnect Power – Always disconnect the negative battery terminal before
installation.
Remove Old Alternator – Release belt tension and carefully remove the existing unit.
Install New Alternator – Mount the new alternator in the original position and reconnect
all cables.
Adjust Belt Tension – Ensure correct belt tension to avoid slippage or premature wear.
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.
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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.
