Part #: 977

One Stop Solutions 977 Radiator

⚙️ 34 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
🚗Fitment: Chevrolet, Buick, Oldsmobile, Cadillac, and Pontiac, Cavalier, Skyhawk, Firenza, Cimarron, Sunbird, and J2000
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Reliable Radiator Replacement for Buick, Cadillac, Chevrolet, Oldsmobile, and Pontiac

The One Stop Solutions radiator part number 977 is engineered to provide dependable cooling performance for select Buick, Cadillac, Chevrolet, Oldsmobile, and Pontiac models including Cavalier, Cimarron, Firenza, J2000, Skyhawk, and Sunbird. Designed as a direct replacement, this radiator supports engine efficiency and temperature regulation under various driving conditions.

  • Hassle free installation with drop-in fit, form, and function
  • OE performance with premium grade tubes, fins, headers, and plastic tanks
  • Engineering enhancements improve cooling capacity and extend service life
  • Components fitted and torqued to factory specifications for reliable operation
  • Includes concentric engine oil cooler with 1 1/4 inch diameter
  • Crossflow core design with 19 11/16 inch height and 15 1/16 inch width
  • Core thickness of 1 inch and single core row for efficient heat dissipation
  • 100% tested up to three times during production for quality assurance

Technical Specifications and Design Features

This radiator features a crossflow core constructed from premium PA material, measuring 19 11/16 inches in height, 15 1/16 inches in width, and 1 inch in thickness. The plastic tanks and headers are designed for durability and corrosion resistance. Both inlet and outlet headers measure 16 5/8 inches in length and 2 7/16 inches in width, with inlet and outlet diameters of 1 5/16 inches, ensuring compatibility with the vehicle’s cooling system. The included concentric engine oil cooler with fittings spaced 11 1/2 inches apart supports engine oil temperature regulation, enhancing overall engine performance. This radiator does not include a transmission oil cooler.

Compatible Vehicles and Applications

This radiator is compatible with the following makes and models:

  • Buick: Skyhawk
  • Cadillac: Cimarron
  • Chevrolet: Cavalier
  • Oldsmobile: Firenza, J2000
  • Pontiac: Sunbird

It is designed to replace original equipment radiators in these vehicles, maintaining proper cooling system function and engine temperature control.

Common Issues Addressed by This Radiator

  • Overheating due to radiator core damage or clogging
  • Coolant leaks from cracked or worn plastic tanks
  • Reduced cooling efficiency from corroded or bent fins
  • Engine oil temperature regulation problems due to faulty oil cooler
  • Failure of original radiator components causing engine overheating

Installation Notes and Tips

Installation of the One Stop Solutions radiator 977 is straightforward with its drop-in design. Ensure all fittings and hoses match the specified inlet and outlet diameters of 1 5/16 inches. Verify that the engine oil cooler fittings align with the 11 1/2 inch spacing. Use factory torque specifications when securing components to avoid leaks or damage. It is recommended to flush the cooling system before installation to prevent contamination and ensure optimal performance.

Quality Assurance and Warranty Information

Each radiator undergoes rigorous testing up to three times during production to verify performance and durability. Components are assembled and torqued to factory specifications to meet OE standards. The product includes engineering enhancements aimed at improving cooling efficiency and extending service life. Warranty details should be confirmed with the distributor or manufacturer.

BrandOne Stop Solutions
Part Number977
Cap IncludedNO
Core Height19 11/16
Core MaterialPA
Core Row Quantity1
Core Thickness1
Core Thickness26
Core Width15 1/16
Down Flow Or Cross Flow TypeCROSSFLOW
Engine Oil Cooler Diameter1 1/4
Engine Oil Cooler IncludedYES
Engine Oil Cooler TypeCONCENTRIC
Inlet Diameter1 5/16
Inlet Header Length16 5/8
Inlet Header Width2 7/16
Oil Cooler Fittings Distance Apart11 1/2
Outlet Diameter1 5/16
Outlet Header Length16 5/8
Outlet Header Width2 7/16
Tank MaterialPLASTIC
Transmission Oil Cooler IncludedNO
Transmission Oil Cooler TypeNONE

This part fits 34 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
1994ChevroletCavalier2.2LL4N/A1-5/16" CORE
1993ChevroletCavalier2.2LL4N/A1-5/16" CORE
1992ChevroletCavalier2.2LL4N/A1-5/16" CORE
1991ChevroletCavalier2.2LL4N/A1-5/16" CORE
1990ChevroletCavalier2.2LL4N/A1-5/16" CORE
1989BuickSkyhawk2.0LL4N/A19 5/8" CORE
1989ChevroletCavalier2.0LL4N/A1-5/16" CORE
1988BuickSkyhawk2.0LL4N/A19 5/8" CORE
1988ChevroletCavalier2.0LL4N/A19" CORE
1988OldsmobileFirenza2.0LL4N/A19" CORE; 2 ROW Equivalent
1987BuickSkyhawk2.0LL4N/A19 5/8" CORE
1987ChevroletCavalier2.0LL4N/A19" CORE
1987OldsmobileFirenza2.0LL4N/A19" CORE; 2 ROW Equivalent
1986BuickSkyhawk2.0LL4N/A19 5/8" CORE
1986CadillacCimarron2.0LL4N/A
1986ChevroletCavalier2.0LL4N/A19" CORE
1986OldsmobileFirenza2.0LL4N/A19" CORE; 2 ROW Equivalent
1986PontiacSunbird2.0LL4N/A19" CORE; 2 ROW Equivalent
1985BuickSkyhawk2.0LL4N/A19 5/8" CORE
1985CadillacCimarron2.0LL4N/A
1985ChevroletCavalier2.0LL4N/A19" CORE
1985OldsmobileFirenza2.0LL4N/A19" CORE; 2 ROW Equivalent
1984BuickSkyhawk2.0LL4N/A19 5/8" CORE
1984CadillacCimarron2.0LL4N/A
1984ChevroletCavalier2.0LL4N/A19" CORE
1984OldsmobileFirenza2.0LL4N/A19" CORE; 2 ROW Equivalent
1983BuickSkyhawk2.0LL4N/A19 5/8" CORE
1983CadillacCimarron2.0LL4N/A
1983ChevroletCavalier2.0LL4N/A19" CORE
1983OldsmobileFirenza2.0LL4N/A19" CORE; 2 ROW Equivalent
1983PontiacJ20002.0LL4N/A19" CORE; 2 ROW Equivalent
1982CadillacCimarron1.8LL4N/A
1982ChevroletCavalier1.8LL4N/A19" CORE; 2 ROW Equivalent
1982OldsmobileFirenza1.8LL4N/A19" CORE; 2 ROW Equivalent; w/SENSOR

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

This part directly replaces or is cross-referenced with the following part numbers:

201364339778010977977CU977

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.