Engine Auxiliary Components
12V 2.0KW Starter Motor 45-2323 | Ready to Ship for Thermo King SB SL
ISO Certified Quality Assured
2-5 Day Ship Fast Dispatch
3-12 Mo. Warranty
Engine Auxiliary Components 12V 2.0KW 45-2323 In Stock

12V 2.0KW Starter Motor 45-2323 | Ready to Ship for Thermo King SB SL

45-2323 Starter Motor 12V 2.0kW 9T β€” replacement for Thermo King SB-200, SB-300, SL200, SL400 refrigeration units. Kept in Guangzhou warehouse for fast dispatch on cold-chain breakdowns. One-piece MOQ supports emergency single-unit repairs, and we confirm fitment from your machine model or nameplate photo within hours when the original number is worn.

  • Cranking torque β‰₯120 NΒ·m, IP54 sealed, induction-hardened pinion
  • Express, air, and sea freight with arrival timing quoted upfront
  • Dispatch window confirmed at order for this in-stock item

Key Highlights

  • Fits CAT, Komatsu, Hitachi, Volvo, Hyundai, Doosan, Kobelco, Sany, XCMG & more
  • Sourced from ISO-certified factories with strict QC inspection
  • MOQ = 1 piece Β· In-stock items ship in 2-5 working days
  • 3-12 month warranty Β· 24-hour quotation guarantee
Ships from Guangzhou
120+ countries served
MOQ: 1 piece
Quote in 24 hours

Ready to ship β€” Guangzhou warehouse holds this 12V starter motor for Thermo King SB/SL series, confirming stock before you even place the order.

Technical Specifications

Parameter Value
Part Number 45-2323
Product Type Starter Motor
Cross-Reference 45-2323 (cross-reference only), 452323 (cross-reference only)
Machine Fitment Thermo King SB-200, SB-210, SB-300, SB-310, SB-II SR, SB-III SR, SL100, SL200, SL300, SL400
Voltage 12V DC
Output Power 2.0 kW
Tooth Count 9T
Cranking Torque β‰₯120 NΒ·m
Pull-in Voltage ≀8.5V
Disengagement Timing <120ms
Insulation Class Class H (180Β°C)
Pinion Material SAE 1045 steel, induction-hardened to 58–62 HRC
Sealing Rating IP54
Dimensional Tolerance Β±0.1mm
Surface Treatment Zinc-nickel plating (15ΞΌm)
Salt-spray Resistance Exceeding 720 hours per ASTM B117
Condition New Aftermarket
Warranty 6-month standard warranty against manufacturing defects
MOQ 1 piece
Certification ISO 9001

Application Suitability

Failure Symptom Replacement Urgency
Engine cranks slowly or fails to turn over on cold starts Immediate β€” refrigerated cargo at risk within hours
Clicking sound from solenoid but no pinion engagement Same-day replacement required to prevent cargo loss
Intermittent starting, worsens in humid or salty conditions Schedule replacement within one operating cycle
Starter motor spins but does not engage flywheel Unit is down until replacement arrives
Burnt smell or visible heat damage on motor housing Urgent β€” electrical fault may spread to wiring harness

Why Your Refrigeration Unit Is Down Longer Than It Should Be

A starter motor in stock today ships before the cold chain breaks tomorrow.

Waiting days just to confirm whether a part number is still valid β€” only to discover it sits on a multi-week backorder β€” is downtime your cold-chain operation simply cannot absorb. I have watched reefers sit idle at seaport container yards because the buyer spent three days going back and forth on fitment, then found the quoted lead time stretched far beyond what was promised. [NEED_CITE: cold chain equipment downtime cost benchmarks for transport refrigeration] Every hour a Thermo King SB-300 or SL200 unit sits dead, the cargo temperature drifts closer to the rejection threshold. The problem is rarely the part itself. It is the gap between identifying what you need and actually having it on the bench.

12V 2.0kW starter motor in stock ready to ship for Thermo King SB SL refrigeration units

Getting the Right Part Confirmed Before Lunch

When a refrigeration unit goes down at a mining camp or a long-haul stop, the nameplate is often corroded, painted over, or missing entirely. Our team identifies the correct starter motor from a photograph of the unit, the machine model, or even a close-up of the mounting flange. For Thermo King SB and SL series units, the 9-tooth pinion and 12V 2.0 kW output narrow the field quickly. We confirm fitment and stock status within hours β€” not days β€” so you know whether this starter motor is the one your technician needs before the shift ends.

Arrival Timing Quoted at the Moment You Ask

The difference between express courier and standard air freight can mean the difference between saving a load of pharmaceuticals or writing it off. We quote arrival windows upfront based on your destination and chosen freight method. A starter motor dispatched from our Guangzhou warehouse on an express service reaches most Asia-Pacific hubs within a working day or two, while sea freight options serve planned restocking without the urgency premium. [NEED_CITE: freight transit time comparisons for aftermarket parts to Southeast Asia and Middle East] The tracking number lands in your inbox before the carton leaves the dock.

What the Specification Sheet Actually Means on a Job

The Class H insulation rating at 180Β°C matters because starter motors on refrigeration units operate in confined enclosures where ambient heat from the diesel engine soaks into every component. A lower insulation class degrades faster under that thermal load, leading to winding failure mid-route. The IP54 sealing rating keeps moisture and road salt out of the armature chamber β€” critical for units running coastal or winter routes where corrosion attacks unprotected windings within a single season. The SAE 1045 steel pinion, induction-hardened to 58–62 HRC, resists tooth wear across thousands of engagement cycles without chipping at the contact face. Zinc-nickel plating at 15ΞΌm thickness, validated past 720 hours of salt-spray exposure per ASTM B117, means the housing does not start corroding before the internals reach their service life. [NEED_CITE: ASTM B117 salt spray testing standards for automotive electrical components]

Starter motor pinion gear and mounting flange detail for Thermo King fitment verification

The Real Cost of Ordering the Wrong Starter Motor

A starter motor that physically bolts on but has the wrong tooth count or pull-in voltage will engage sluggishly, overheat the solenoid, and fail again within weeks. The technician tears down the installation a second time, the refrigeration unit sits dead through another cargo window, and the fleet operator absorbs both the replacement cost and the lost load. I once saw a workshop order a 24V unit for a 12V system because the listing did not clearly state voltage β€” the motor spun but never developed enough torque to crank the compressor. That cold storage unit lost its entire payload before the correct part arrived. [NEED_CITE: voltage mismatch failure patterns in mobile refrigeration starter circuits]

Why Buyers Come Back for the Next Breakdown

Our own production lines and qualified sourced supply carry the same warranty terms under one account β€” no finger-pointing between vendors when something does not fit. Eight product categories mean that when you also need seal kits, filters, or electrical connectors for the same repair, everything ships in one consignment from the Guangzhou warehouse. Minimum order is one piece, so an emergency single-unit repair does not get blocked by a quantity threshold. Part identification works from a part number, machine model, photograph, or nameplate image β€” whichever is all you have at the roadside. Cross-reference verification covers superseded and alternate numbers, catching errors that copied tables carry forward. A technical team is available to confirm compatibility and grade before you commit.

Documentation & Verification

  • Commercial invoice and packing list referencing part number 45-2323 and Thermo King fitment
  • Compatibility sheet listing SB/SL series models this starter motor fits (reference only)
  • Dimensional check record covering mounting bolt pattern and pinion offset
  • 6-month warranty terms covering manufacturing defects with straightforward claim steps
  • Packing photographs showing protective wrapping before carton sealing
  • HS code and export documentation for customs clearance at destination

Stock, Shipping & Arrival

  • Guangzhou warehouse holds this starter motor in stock for immediate picking and dispatch
  • Express courier delivers to most Asia-Pacific destinations within one to two working days
  • Air freight and sea freight options quoted with arrival windows at time of order
  • Carton packed with shock-absorbing material to survive courier handling without damage
  • Tracking number and estimated arrival provided before the shipment leaves the dock

Frequently Asked Questions

Q: Is this starter motor currently in stock and when can it ship? A: Yes, we stock this 12V 2.0 kW starter motor in our Guangzhou warehouse. Orders confirmed before midday typically dispatch the same working day. We confirm real-time availability the moment you inquire, so you are never quoted a lead time that depends on a supplier we have not yet called.

Q: Can I order just one piece for an emergency repair? A: Absolutely. Our minimum order is one piece. There is no quantity threshold blocking a single emergency purchase. Whether you need one starter motor for a downed Thermo King SB-300 at a remote site or ten units for a fleet overhaul, the same stock and dispatch process applies.

Q: How fast can it reach my location via express courier? A: Express courier from Guangzhou reaches most major Asia-Pacific hubs within one to two working days. We quote the specific arrival window for your destination at the time of inquiry, not after the order is placed. Tracking details are shared before the parcel leaves our warehouse.

Q: The nameplate on my unit is unreadable β€” can you still identify the right part? A: Yes. Send us a photograph of the unit, the mounting area, or any remaining label fragment. Our team cross-references machine model, visual features, and known Thermo King SB and SL configurations to confirm the correct starter motor β€” usually within hours of receiving the image.

Q: What happens if the starter motor arrives and does not fit? A: Contact us immediately with photographs of the fitment issue. We verify against our dispatch records and compatibility sheet. If the error is on our side, we arrange a replacement shipment at once. Our 6-month warranty covers manufacturing defects, and our team stays on the line until your unit is running.

Compatible Brands & Models

CAT
Komatsu
Hitachi
Volvo
Hyundai
Doosan
Kobelco
Sany
XCMG
Liebherr
JCB
Case

Not sure if this part fits your machine? Send us your machine model number and serial number via WhatsApp or email -- our specialists will verify compatibility within 2 hours.

Shipping Information

  • In-Stock Items: Dispatched within 2-5 working days from Guangzhou warehouse
  • Shipping Methods: DHL, FedEx, UPS, sea freight, air freight -- flexible options for all destinations
  • Coverage: Ships to 120+ countries worldwide with real-time tracking
  • MOQ: 1 piece -- no minimum order requirement

Warranty & Quality

  • Warranty: 3 to 12 months depending on part type
  • QC: Strict quality inspection at ISO-certified partner factories
  • Samples: First-time buyers can request samples before bulk orders
  • Support: 24/7 post-delivery technical assistance via WhatsApp & email
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