4 Row Aluminum Radiator for GMC Chevy C/K Jimmy
$250.90 price checked August 2026
If you need a direct bolt replacement for a 1973-1991 Chevy C/K, this kit is the right choice.
The GMC Chevy Radiator in Short
The Prime Cooling 4 Row Aluminum Radiator for Chevy C/K is for heavy-duty cooling needs due to its 4-Row AA5052 Aluminum core, making it a 4 Row Aluminum Radiator for Chevy C/K.
Overheating during heavy towing or high-load operation can compromise engine longevity and safety. Proper thermal management requires a high-surface-area heat exchanger capable of moving large volumes of coolant quickly.
The Prime Cooling 4 Row Aluminum Radiator for Chevy C/K addresses these thermal demands with a 19″ H x 28-1/4″ W x 2 1/2″ T core. This 4-Row design provides the necessary surface area to maintain stable operating temperatures under stress.
We evaluated the other complete radiator options we compared to determine how this unit performs against category standards. This review is for owners of 1973-1991 Chevy C/K pickups who require a high-capacity cooling upgrade over standard OEM parts.
How Carworship picked: we started from the 200 most-reviewed complete radiator listings in our retail dataset, removed duplicates, accessories and off-category products, and 59 qualified. This product is one of 10 from that pool chosen for a full review. Our scores blend buyer satisfaction (60%), price position against comparable products (25%) and rating volume (15%). Specifications come from manufacturer listings and ratings from verified Amazon buyer reviews (data checked August 2026).
The Short Answer on the GMC Chevy Radiator
Best for: you need a high-capacity cooling upgrade for a 1973-1991 Chevy C/K pickup that requires a 4-row core for heavy-duty heat dissipation.
The Prime Cooling GMC Chevy Radiator is a solid choice at the $250.90 price point.
- Pro: The 4-row AA5052 aluminum core provides a larger surface area than standard 2-row or 3-row units.
- Pro: It includes a dedicated transmission oil cooler and a thermostat relay kit for integrated cooling.
- Pro: The 1 1/2″ upper and lower inlet sizes match standard heavy-duty hose requirements.
- Con: The 33-1/4″ overall width requires a clear path to ensure it does not hit the frame or AC compressor.
- Con: The 19″ height may be too short for specific custom radiator support brackets that require taller vertical clearance.
Don’t buy this if: your vehicle’s existing radiator hoses are smaller than the 1 1/2″ connection diameter required by this unit.
Price assessment: At $250.90, this kit offers fair value given that it includes the aluminum shroud and dual fans.
Carworship score: 6.5/10 (data-driven – see “How we picked” above)
If you own a different truck model, view our top-rated Chevrolet and GMC radiator options.
Key Specifications
| Compatible Vehicles | Chevy C/K Pickup C10 C20 C30 K10 K20 1973-1991 |
| Core Size | 19″ H x 28-1/4″ W x 2 1/2″ T |
| Overall Size | 20-1/4″ H x 33-1/4″ W |
| Core Row Count | 4-Row |
| Upper Inlet Size | 1 1/2″ |
| Lower Outlet Size | 1 1/2″ |
| Material | AA5052 Aluminum |
| Included Fans | 2 x 12″ Fans |
| Weight | 32.1 pounds |
The 4-Row core configuration provides a larger surface area for heat exchange than standard 2-row or 3-row units, making it suitable for heavy-duty cooling requirements.
Where this sits in the buyer data: Among the 59 products screened for this category, this one’s 4.0 rating places it #30, on 69 ratings – above the 20-rating median of that group, so the average rests on more feedback than most of its comparables. On price it undercuts 16 of them.
Before You Buy: GMC Chevy Radiator Checklist
The first thing to check is whether your specific truck sub-model supports a 33-1/4″ wide assembly, as clearance is the primary constraint for these older frames.
- ☐ Confirm vehicle compatibility — 1973-1991 Chevy C/K Pickup C10 C20 C30 K10 K20
- ☐ Measure available mounting width — 33-1/4″ overall width
- ☐ Verify upper inlet position — 1 1/2″ driver side
- ☐ Verify lower outlet position — 1 1/2″ passenger side
- ☐ Check transmission cooler requirements — 32215G1/4Z integrated unit
- ☐ Measure core height clearance — 20-1/4″ overall height
You should not buy this radiator if your vehicle requires a non-standard hose diameter or if your radiator support cannot accommodate a 4-row aluminum core.
What the Numbers Mean in Use
Dual 12 Inch Fan Configuration
The dual 12-inch fans provide the airflow necessary to maintain stable operating temperatures during heavy towing. Because these fans are included in the kit with mounting hardware, you can rely on consistent heat dissipation even when the engine is under high load and airflow is restricted.
AA5052 Aluminum Construction
The GMC Chevy Radiator uses AA5052 aluminum to ensure efficient heat transfer and durability. This material allows for a 4-row core design that provides more surface area than standard 2-row or 3-row units, helping you maintain a consistent temperature drop when pulling heavy trailers or hauling large loads.
Direct Bolt Installation
The GMC Chevy Radiator is designed for direct bolt installation or replacement of OEM accessories. This allows you to swap out your existing cooling system without modifying the mounting points, provided your vehicle matches the 1973-1991 Chevy C/K specifications. You must confirm your radiator support and frame rails align with the 33-1/4″ width before purchasing, as a professional installer should perform the final mounting to ensure all connections are secure.
How the GMC Chevy Radiator Compares to Alternatives
How does the Prime Cooling GMC Chevy Radiator compare to other options?
The Prime Cooling GMC Chevy Radiator provides a 4-row AA5052 aluminum core, which offers a significantly larger surface area for heat exchange than standard 2-row stock replacements.
- The Prime Cooling GMC Chevy Radiator costs $1.90 more than the ALLOYWORKS Radiator Chevy GMC C/K/G/P Series.
- The Prime Cooling GMC Chevy Radiator features a 19″ H x 28-1/4″ W core, while the 4 Row Aluminum Radiator Chevy Camaro Pontiac Firebird has a smaller 17″H x 23″W core.
- The Prime Cooling GMC Chevy Radiator holds a 4.0 rating, which is lower than the 4.3 rating of the ALLOYWORKS Radiator Chevy GMC C/K/G/P Series.
- The Prime Cooling GMC Chevy Radiator is priced $1.90 higher than the Primecooling Radiator GMC Chevy Blazer Jimmy.
- The Prime Cooling GMC Chevy Radiator is priced $1.90 higher than the 3 Row Core Radiator Dodge Ram 1500 2500 3500.
- The Prime Cooling GMC Chevy Radiator is priced $1.90 higher than the ALLOYWORKS SBA310100211 Radiator Ford Tractor 1300.
If you prioritize a higher user rating over a 4-row core, the ALLOYWORKS Radiator Chevy GMC C/K/G/P Series is the better choice for your build.
Understanding the cooling cycle is easier when you see how a radiator assembly works.
You might also consider exploring various radiator assembly alternatives for different cooling needs.
What Buyers Still Want to Know About the GMC Chevy Radiator
Will the GMC Chevy C/K Jimmy Radiator include the fan shroud?
Yes, the GMC Chevy Radiator includes an AA5052 aluminum shroud and two 12″ fans with mounting kits. This eliminates the need for you to source a separate cooling fan setup after purchase.
Does the GMC Chevy C/K Jimmy Radiator come with mounting hardware?
The GMC Chevy Radiator is designed for direct bolt installation or replacement of OEM accessories. The kit includes the necessary components to bolt the unit to the vehicle without sourcing external brackets.
Is the GMC Chevy C/K Jimmy Radiator compatible with my 1985 C10?
Yes, the GMC Chevy Radiator fits Chevy C/K Pickup models from 1973 to 1991, including the C10, C20, and C30. You should confirm your hose connection diameter is 1 1/2″ to ensure a proper fit for this specific model.
Is the GMC Chevy C/K Jimmy Radiator worth the $250.90 price?
You should consider the 4-row core construction and the included transmission oil cooler and thermostat relay kit when evaluating the cost. The GMC Chevy Radiator holds a 4.0 rating from 69 buyers, which supports its value as a complete cooling solution.
Where to Buy the GMC Chevy Radiator
These retailers sell Complete Radiator generally – we do not track which of them has this particular model in stock, so check availability and the current price with the retailer before making a trip.
- Advance Auto Parts (online and physical stores) — large selection of aftermarket cooling components and trade accounts
- RockAuto (online only) — massive catalog of various brands and price-competitive shipping
- Summit Racing Equipment (online and physical stores) — specialist performance and heavy-duty cooling options
- Amazon (online only) — broad range of aftermarket and budget-friendly cooling products
- AutoZone (online and physical stores) — wide availability of standard replacement parts and in-store pickup
- O’Reilly Auto Parts (online and physical stores) — extensive inventory of cooling systems and local store support
Final Verdict on the GMC Chevy Radiator
If you need a heavy-duty cooling solution for a 1973-1991 Chevy C/K pickup that requires a high-surface-area heat exchanger, the Prime Cooling 4 Row Aluminum Radiator is the correct choice at around $250.90.
The 4-Row AA5052 aluminum construction and 19″ x 28-1/4″ core size provide the substantial cooling capacity required for high-output applications, supported by a 4.0 rating from 69 buyers.
Skip it if: your vehicle uses a different hose connection diameter than 1 1/2″ or you require a specific transmission oil cooler other than the 32215G1/4Z model.