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Spectra CU803 RadiatorOE Quality 60-Day Returns
Part #: CU803

Spectra CU803 Radiator

14 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
Fitment: Jeep, CJ5, CJ7, and Scrambler
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Spectra CU803 Radiator for Jeep CJ7, CJ5, and Scrambler

The Spectra CU803 radiator is a direct-fit cooling component for select Jeep CJ7, CJ5, and Scrambler applications from 1981-1986. Built to meet OE-level durability expectations, it is a practical choice for restoring cooling performance on classic Jeep models.

  • Fits 1981-1986 Jeep CJ7, N/A, with 15-5/8 in. between tanks; standard duty cooling; radiator cap required
  • Fits 1981-1985 Jeep Scrambler, N/A, with 15-5/8 in. between tanks; standard duty cooling; radiator cap required
  • Fits 1981-1983 Jeep CJ5, N/A, with 15-5/8 in. between tanks; standard duty cooling; radiator cap required
  • OE-style radiator construction for classic Jeep cooling system service
  • Part number CU803 for catalog and fitment lookup

Designed for Jeep CJ7 radiator replacement, Jeep CJ5 cooling system repair, and Jeep Scrambler radiator service, this unit follows the original application requirements listed for each vehicle. Spectra Premium radiators are engineered with the durability expectations associated with OE replacement parts, making CU803 a straightforward option when replacing a worn or leaking radiator on these older Jeep platforms. This part cross-references CSF 3675 for the same application.

Common Reasons to Replace

  • Coolant leaks from a damaged or corroded radiator core
  • Overheating caused by restricted coolant flow
  • Reduced cooling efficiency in standard duty Jeep cooling systems
  • Visible tank or seam damage on an aging radiator
  • Need for a correct-fit replacement for CU803 applications

Installation Notes and Tips

Verify the 15-5/8 inch tank spacing before installation and confirm the vehicle uses standard duty cooling. A radiator cap is required and is not stated as included. Inspect hoses, clamps, and the cooling fan system during replacement to help ensure proper operation after installation.

Quality Assurance

Spectra Premium designs this radiator to follow OE durability expectations for the listed Jeep applications. Part number CU803 is cataloged for 1981-1986 Jeep CJ7, 1981-1985 Jeep Scrambler, and 1981-1983 Jeep CJ5 fitment.

This part fits 14 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
1986JeepCJ74.2LL6N/A15-5/8 in. Between Tanks; Standard Duty Cooling; Radiator Cap Is Required
1985JeepCJ74.2LL6N/A15-5/8 in. Between Tanks; Standard Duty Cooling; Radiator Cap Is Required
1985JeepScrambler4.2LL6N/A15-5/8 in. Between Tanks; Standard Duty Cooling; Radiator Cap Is Required
1984JeepCJ74.2LL6N/A15-5/8 in. Between Tanks; Standard Duty Cooling; Radiator Cap Is Required
1984JeepScrambler4.2LL6N/A15-5/8 in. Between Tanks; Standard Duty Cooling; Radiator Cap Is Required
1983JeepCJ54.2LL6N/A15-5/8 in. Between Tanks; Standard Duty Cooling; Radiator Cap Is Required
1983JeepCJ74.2LL6N/A15-5/8 in. Between Tanks; Standard Duty Cooling; Radiator Cap Is Required
1983JeepScrambler4.2LL6N/A15-5/8 in. Between Tanks; Standard Duty Cooling; Radiator Cap Is Required
1982JeepCJ54.2LL6N/A15-5/8 in. Between Tanks; Standard Duty Cooling; Radiator Cap Is Required
1982JeepCJ74.2LL6N/A15-5/8 in. Between Tanks; Standard Duty Cooling; Radiator Cap Is Required
1982JeepScrambler4.2LL6N/A15-5/8 in. Between Tanks; Standard Duty Cooling; Radiator Cap Is Required
1981JeepCJ54.2LL6N/A15-5/8 in. Between Tanks; Standard Duty Cooling; Radiator Cap Is Required
1981JeepCJ74.2LL6N/A15-5/8 in. Between Tanks; Standard Duty Cooling; Radiator Cap Is Required
1981JeepScrambler4.2LL6N/A15-5/8 in. Between Tanks; Standard Duty Cooling; Radiator Cap Is Required

* 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:

36754180343380353597325362165583583CBR7322678010803803CU803RAD803REA41803

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

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