Chase Bays Tucked Aluminum Radiator - Nissan 240sx S13 / S14 / S15 and R32


Chase Bays

CHB CB-14RAD-150

Ships Direct from Manufacturer


The Chase Bays Tucked Radiator for Nissan 240sx Silvia S chassis & Skyline R32 is designed for those wanting to open up space in their crowded engine bays, get a better look aesthetically, and improve cooling power. It offers more fluid capacity than most aftermarket rads, more direct airflow, & dual pass design. We shorten 8" of space but increase the width and thickness to compensate. This radiator has been rigorously track/drift tested for nearly a decade & is on countless show winning engine bays.

We've designed this aluminum radiator to fill every bit of space under core support while still being able to run (2) 12” fans. This radiator requires some light front core support cutting. We wanted to make the radiator as large as possible while staying under core support. To accomplish this we had to cut into the chassis. This radiator hits the stock S13 pop-up motors, but with this product it can be relocated: S13 Headlight Motor Relocation

We formerly sold our Radiator with a Fan Shroud, until June 2019. This was a great way to mount fans (Mounting fans directly to core will void your warranty and ruin the Radiator) and to increase cooling efficiency. The only problem is anything past 12mph...a shroud can actually restrict flow. We changed to fan brackets built into the radiator and no complete covering shroud. This decreased the price $175 dollars AND increased cooling efficiency. =O

We offer 2 different fans as an option. Although there are many factors in keeping a car properly cooled, we'll assume you have all your bases covered (good water pump, no leaks, sufficient wiring). It's important that each fan is on its own relay w/ proper sized wiring & that fill point is actually the highest point in system. These 2 things are most commonly overlooked. For this reason we make
Dual Fan Relay Harness w/ 180º F Thermoswitch and our Raise Inline Filler Neck (read more below).

• Mishimoto 12" Fan  |  1,150 CFM each > 2,300 CFM total  |  $67.50 each
• Mishimoto Race Line HD Fan 12"  |  1,700 CFM each > 3,400 CFM total!!  |  $120 each

We see people using cylinder count as measurement for how powerful their fans need to be. We've learned this isn't best method for our overclocked engines. Its best to go by power rating. 400hp & under can use the less lesser powered fan, 401hp & over should use higher powered fans. However, this is only a 1 time purchase & we recommend going with higher powered ones no matter what. The Mishimoto Raceline Fans are 1.5 inch thicker than Mishimoto fans so they will take up more space. Luckily with this radiator you'll still have plenty of room on i6 and V8. Install photos can be seen on photo scroll above with all engine types.

Modular Inlet/Outlet and Reversible Orientation
The radiator inlet & outlet have to be on same side since it's a dual pass design. We've designed the radiator to be completely reversible w/ interchangeable inlet/outlet types. It looks the same on top & bottom plus the brackets are centered.

Inlet & outlet are -20AN female threads. So we thread in whichever adapters you need. If you change your mind down the road, there's no cutting & welding. Just threading on new adapters. We offer OE style in 1.5", -16AN, and -20AN. We recommend you put radiator orientation closer to upper water neck. On JZ's, we cut and mod the upper neck to NOT face the LHD Driver Side.

We do NOT recommend -16AN for popular swapped engines & we give a fair warning about -20AN. Stock inner diameter of hose for SR/RB/KA/CA, 1JZ/2JZ, & GM LS engines is 1.5" inch. -16AN is 1" & -20AN is 1.25" By going w/ those, you're creating a restriction that's normally not there. -20AN is fine but -16AN you're reducing flow by 34%.

Dual Pass Design
This simply means coolant passes through TWO times instead of ONE. Which, more simply put means TWICE the cooling & half the size. Inlet & outlet are on same side of radiator & a plate is welded inside between the two inlets. Radiator has 2 L brackets on each side that you bolt to your core support. This radiator doesn't use any OEM radiator mounting points.

Fill Point
Since the top of our radiator sits lower than stock, we have to make a new fill point. 1st step is getting an inline filler neck, luckily you can now get that through us. The way you setup filler neck will make your hose selection easier. Our personal favorite is on radiator itself using our Chase Bays Raised Modular Filler Neck. It's raised perfect height to match original fill point height.

To do this select -20AN for 1 side of Chase Bays Filler Neck when selecting options, other side will be whatever hoses you choose to go with. So if you're using OE Push-On style Silicone Hoses, you'd select "1.38mm Normal Hose" for 1 option & "-20AN" for other. -20AN side will thread right into radiator then you'll twist filler neck onto that. W/ thick O-Ring Seal on both sides, getting filler neck 0º vertical is easy w/ adjustment of both sides. 

The other option is putting it on upper water neck via clamp or welding (which will require fab work).

Pressure Tested
Each radiator is pressure tested to 30psi. Your radiator shouldn’t see more than 16-19psi before radiator cap spring does its job & expands into overflow.

Returns Policy

You may return most new, unopened items within 30 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).

You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).

If you need to return an item, simply login to your account, view the order using the 'Complete Orders' link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.


We can ship to virtually any address in the world. Note that there are restrictions on some products, and some products cannot be shipped to international destinations.

When you place an order, we will estimate shipping and delivery dates for you based on the availability of your items and the shipping options you choose. Depending on the shipping provider you choose, shipping date estimates may appear on the shipping quotes page.

Please also note that the shipping rates for many items we sell are weight-based. The weight of any such item can be found on its detail page. To reflect the policies of the shipping companies we use, all weights will be rounded up to the next full pound.

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