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Heating and Cooling› Radiators

ISR

Aluminum Radiator for Nissan 240SX SR20DET

$330.00 $313.50 Save $16.50

SKU: IS-240SR-RADS13

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Special Order
Ships in 4–6 weeks
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$100 Minimum Order
30 Days Return
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Overview

The ISR Performance IS-240SR-RADS13 is an aluminum radiator designed for the 1989-1994 Nissan 240SX RWD models with an SR20DET engine. It features a TIG welded, lightweight aluminum construction for enhanced cooling performance and a cleaner engine bay appearance.

This aftermarket radiator is recommended for hard driving, long periods of use, or track applications where maintaining optimal engine temperatures is crucial to prevent overheating.
Show original supplier description
The ISR Performance IS-240SR-RADS13 is a TIG welded aluminum radiator engineered as a direct replacement for the 1989-1994 Nissan 240SX RWD models equipped with the SR20DET engine. Its lightweight aluminum construction not only aids in efficient heat dissipation but also contributes to a cleaner, more performance-oriented look within the engine bay. This aftermarket radiator is particularly recommended for drivers who engage in demanding driving conditions, such as prolonged high-speed driving or track use. Upgrading from the OEM radiator ensures superior cooling capabilities, which are essential to prevent engine overheating and maintain consistent performance under stress. The design aims to provide a direct fit, simplifying the installation process for enthusiasts looking to enhance their vehicle's cooling system. While the product page does not explicitly detail specific performance gains in terms of horsepower or torque, the emphasis on improved cooling suggests a more stable engine operating temperature, which can indirectly support peak performance. The construction is noted as being lightweight and TIG welded, indicating a focus on durability and quality. This radiator is intended for Off Road Use Only.
Vehicle Symptoms
  • engine temp gauge climbs past normal in traffic
  • coolant visibly leaking from radiator seams
  • overheats during high boost or track sessions
  • steam from under hood after hard driving
  • coolant smell inside engine bay
Diagnostic Codes
  • P0217 – Engine Coolant Overtemperature Condition
Relevant Conversations
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  • P0217 engine coolant overtemp 240SX SR20DET fix
  • ISR vs Koyo radiator 240SX S13 which is better
  • how to install aluminum radiator 240SX SR20DET
  • 240SX SR20DET radiator upgrade with SPAL fans
  • 89-94 240SX SR20DET direct fit radiator IS-240SR-RADS13
  • coolant boiling out of overflow tank SR20DET
  • OEM radiator cracked 240SX S13 replacement options

Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.

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Specifications

BrandISR
Part NumberIS-240SR-RADS13
CategoryHeating and Cooling
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Returns & Fitment

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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Shipping

Orders are processed in 1–3 business days. In stock parts ship promptly from our partner network. Special-order items either aren’t currently stocked or are built to your spec — expect 4–6 weeks. If a part goes on backorder while your order is in the queue, we’ll reach out and work through discounted alternatives together.

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