Gearbox Oil Cooler Radiator 124100-6450 HD-OC-1203 Transmission Fluid Cooler for Car Gearbox Cooling System
Gearbox Oil Cooler Radiator 124100-6450 HD-OC-1203 for Car Gearbox Cooling

This gearbox oil cooler radiator is listed under part number 124100-6450 and model HD-OC-1203. It is intended for use in car gearbox oil cooling systems, where transmission fluid temperature needs to be managed as part of normal vehicle operation. The unit is supplied as a single oil cooler. The source information describes it as an oil radiator cooler suitable for cars, with the part number and model serving as the main identification details. If you are looking for a replacement gearbox oil cooler, matching these references to your existing component is the first practical step. No dimensions, material grades, or performance ratings are stated in the listing, so the buying decision should be based on the part number, model, and intended application.
Features and Construction

The information provided focuses on identification and application rather than detailed construction. The cooler is described as an oil radiator cooler for car use, with the model HD-OC-1203 and part number 124100-6450. These references allow you to compare the unit against the part you intend to replace. Because no material or build specification is given, this section sticks to what is known from the source text.
Material and Build
No material specification is provided for this gearbox oil cooler. The source text does not state whether it is aluminium, steel, or another material, and it does not describe the internal construction or finish. What is known is the product type: an oil radiator cooler for car applications. The model number HD-OC-1203 and part number 124100-6450 are the key identifiers. If material or build details are important for your vehicle, you should confirm them separately before ordering, as this listing does not include that information.
Size and Practical Fit
No dimensions or measurements are given in the source text. There is no length, width, height, or connection size stated. The listing describes the item as suitable for cars and gives the part number 124100-6450 and model HD-OC-1203, but it does not specify which vehicle models or engine variants it fits. Practical fit therefore depends on matching those numbers to your existing gearbox oil cooler. If you need exact sizing, check with your supplier or refer to your vehicle's parts information before purchase.
Uses and Placement
This oil cooler is intended for gearbox oil cooling in car applications. Its role is to form part of the transmission fluid circuit, helping to manage fluid temperature during driving. The source information does not describe specific installation positions or vehicle-specific fitting instructions, so the guidance here remains general and focused on the part number match. It is a single cooler unit, not a complete kit.
Event or Professional Use
For professional mechanics or transmission specialists, this gearbox oil cooler radiator may be relevant when a customer's vehicle requires a replacement cooler with the reference 124100-6450 or model HD-OC-1203. The listing provides those identifiers clearly, which supports parts lookup and comparison. No professional installation data, torque settings, or fluid capacity figures are included. The unit is supplied on its own, so any additional fittings, hoses, or brackets would need to be sourced separately if required for the job.
Everyday Home Use
For everyday car maintenance, this oil cooler may be considered when a gearbox oil cooling component needs replacing and the part number 124100-6450 matches the existing unit. It is a single oil cooler, so it is not a full service kit. The source text does not include step-by-step fitting instructions or home-mechanic guidance. If you are carrying out your own work, you should rely on your vehicle's technical information and confirm that the model HD-OC-1203 and part number 124100-6450 are correct for your car before starting.
Benefits and Buying Value
The main practical benefit of this listing is clear identification. The part number 124100-6450 and model HD-OC-1203 are stated, which helps you check whether the cooler is the one you need. It is supplied as one unit, keeping the purchase focused on the cooler itself rather than a bundle of unspecified parts. No price comparisons, longevity claims, or performance improvements are made in the source text, so the value case rests on part-number matching and the intended gearbox oil cooling role.
Reuse and Low Maintenance
No maintenance schedule, cleaning method, or service life is stated for this oil cooler. The source text does not describe reusable features or low-maintenance properties. Any maintenance would depend on your vehicle's requirements and the condition of the gearbox oil system. Because the listing does not include care instructions, it is best to follow the guidance from your vehicle manufacturer or a qualified technician. The product is simply an oil cooler with the reference 124100-6450 and model HD-OC-1203.
Why Choose This Product
You may choose this gearbox oil cooler if you need a replacement unit matching part number 124100-6450 or model HD-OC-1203. It is described as an oil radiator cooler suitable for cars and is supplied as a single item. The listing does not claim universal fitting, improved cooling performance, or compatibility with specific models beyond the stated car application. The decision should be based on confirming those identifiers against your existing gearbox oil cooler. If the numbers match and you need the cooler alone, this listing provides that unit.