Part #: 1135

One Stop Solutions 1135 Radiator

12 vehicles fit this part
Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
$119.95Free Shipping
Free ShippingNo Cost to Continental U.S.
Free Returns*Wrong fit? No cost
60-Day ReturnsMoney back guarantee
*Free return shipping only qualifies if our fitment verification tool is used.
In Stock · Ready To Ship Most orders ship same-day if ordered before 1pm CST.
OE Direct Replacement — Bolt-on fit, no modifications needed
Fitment: Mazda, 323 and Protege
Easy Returns — Return within 60 days for a full refund
Fast Shipping — Most orders ship same business day before 1pm CST

Reliable Radiator Replacement for Mazda 323 and Protege

The One Stop Solutions radiator part number 1135 is designed specifically for Mazda 323 and Protege models. Engineered to meet OE performance standards, this radiator ensures efficient cooling and durability for your vehicle's engine and transmission system.

  • Hassle free installation with drop-in fit, form, and function
  • O.E. performance and exceptional quality materials
  • Engineering enhancements for improved cooling and longer service life
  • Premium grade tubes, fins, headers, and plastic tanks
  • Includes concentric transmission oil cooler for added functionality
  • Components fitted and torqued to factory specifications
  • 100% tested up to three times during production
  • Designed to address original design failures and improve reliability

Technical Specifications and Features

This radiator features a downflow core design with a core height of 15 3/8 inches, core width of 25 1/8 inches, and a core thickness of 5/8 inch. The core is constructed from PA material, while the tanks are made of durable plastic. Both inlet and outlet diameters measure 1 1/4 inches, with header lengths of 26 1/8 inches and header widths of 2 inches. The radiator includes a concentric transmission oil cooler with a diameter of 1 1/8 inches and a fitting distance of 10 3/4 inches. It is a single-row core radiator without an engine oil cooler.

Applications and Common Issues Addressed

  • Replacement for leaking or damaged radiator in Mazda 323 and Protege
  • Resolves overheating caused by inefficient cooling systems
  • Fixes transmission fluid overheating with integrated transmission oil cooler
  • Addresses radiator core corrosion or physical damage
  • Improves cooling system reliability and prevents engine overheating

Installation Notes and Tips

The One Stop Solutions radiator 1135 is designed for a direct replacement, ensuring a drop-in fit for Mazda 323 and Protege models. All necessary fittings and hardware are included or compatible for easy installation. Components are pre-fitted and torqued to factory specifications, reducing installation time and ensuring proper sealing. It is recommended to inspect hoses and clamps during installation and replace if necessary to maintain optimal cooling system performance.

Quality Assurance and Warranty

Each radiator undergoes rigorous testing up to three times during production to ensure reliability and performance. The use of premium materials and engineering enhancements addresses common design failures found in original equipment. While a cap is not included, the radiator is manufactured to meet or exceed OEM standards. Warranty details should be confirmed with the distributor or manufacturer.

BrandOne Stop Solutions
Part Number1135
Cap IncludedNO
Core Height15 3/8
Core MaterialPA
Core Row Quantity1
Core Thickness16
Core Thickness5/8
Core Width25 1/8
Down Flow Or Cross Flow TypeDOWNFLOW
Engine Oil Cooler IncludedNO
Engine Oil Cooler TypeNONE
Inlet Diameter1 1/4
Inlet Header Length26 1/8
Inlet Header Width2
Outlet Diameter1 1/4
Outlet Header Length26 1/8
Outlet Header Width2
Tank MaterialPLASTIC
Transmission Oil Cooler Diameter1 1/8
Transmission Oil Cooler Distance between Fittings10 3/4
Transmission Oil Cooler IncludedYES
Transmission Oil Cooler TypeCONCENTRIC

This part fits 12 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
1994Mazda3231.6LL4N/A
1994MazdaProtege1.8LL4N/A
1993Mazda3231.6LL4N/A
1993MazdaProtege1.8LL4N/A
1992Mazda3231.6LL4N/A
1992MazdaProtege1.8LL4N/A
1991Mazda3231.6LL4N/A
1991Mazda3231.8LL4N/A
1991MazdaProtege1.8LL4N/A
1990Mazda3231.6LL4N/A
1990Mazda3231.8LL4N/A
1990MazdaProtege1.8LL4N/A

* 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:

0K20115200A24524311838011135A1134CU1135MA3010160

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