Does this radiator come with a radiator cap?

This Koyo radiator does not include a radiator cap. You will need to reuse your original cap or purchase a new one separately to ensure a proper seal.

Will this radiator fit my automatic transmission Civic?

No, this Koyo radiator is specifically designed for manual transmission models. It does not have provisions for an automatic transmission cooler line.

What is the advantage of an all-aluminum radiator over a stock one?

All-aluminum radiators are generally lighter than stock copper-brass units and dissipate heat more efficiently. This can lead to improved engine cooling performance, especially under demanding conditions.

1988-1991 Honda Civic Radiator | Koyo KH080146

Name: Koyo 88-91 Honda Civic / CRX EF Chassis w/B-Series (Manual Transmission) All-Aluminum Radiator
Brand: Koyo
SKU: koyo-koyo-88-91-honda-civic-crx-ef-chassis-w-b-series-manual-transmission-all-al-t14-363995
Price: 337.73 USD
Availability: InStock

Koyo 88-91 Honda Civic / CRX EF Chassis w/B-Series (Manual Transmission) All-Aluminum Radiator

$337.73

Only 4 left in stock

Fits 1988-1991 Honda Civic and CRX. This all-aluminum Koyo radiator is a direct replacement for B-Series manual transmissions, offering improved cooling.

Key Features

Fits 1988-1991 Honda Civic and CRX with B-Series manual transmissions.
All-aluminum construction for efficient heat dissipation and reduced weight.
Designed as a direct fit replacement for the stock radiator.
Core design promotes improved airflow for better cooling performance.
Koyo is a popular brand known for well-built cooling system parts.

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Product Details

If you're working on your 1988-1991 Honda Civic or CRX and have a B-Series engine with a manual transmission, keeping that engine cool is critical, especially if you're pushing it a bit harder. This all-aluminum radiator from Koyo is built to handle the heat. It's designed as a direct replacement for your stock unit, meaning it fits right into your EF chassis without a fuss.

Koyo is well-known for making solid cooling components, and this radiator is no exception. The all-aluminum construction means it's lighter than a stock copper-brass unit and also dissipates heat more effectively. This is important because a cooler engine runs more reliably and can even perform better under load. The core is designed for efficient airflow, helping to keep your coolant temperatures in check during spirited driving or in warmer weather.

Since this is a manual transmission specific radiator, you won't have to worry about fitting a transmission cooler line bracket if your car didn't come with one. It's a straightforward upgrade that makes a real difference in managing engine temperatures.