ISR Performance Water Neck Outlet for Nissan SR20DET S14/S15 Style w/ 1/8 npt Coolant Temp Sensor Port

The ISR Performance Water Neck Outlet is an S14/S15-style coolant outlet for the Nissan SR20DET with an integrated 1/8 NPT port for a coolant temperature sensor. Eliminates the need for a separate aftermarket sensor port, simplifies coolant routing on S13 SR20DET swaps, and addresses the worst part of working behind the engine on a fresh swap or rebuild.

What It Does

The factory S13 SR20DET routes coolant lines behind the engine, which makes any service or upgrade work miserable. Converting to the S14/S15-style water outlet routes those lines to the front of the engine where you can actually reach them. This ISR water neck mirrors the S14/S15 factory part with one critical upgrade: an integrated 1/8 NPT port for the coolant temperature sensor, so you don't have to weld in or T off a separate sensor bung.

On an S14 or S15 SR20DET, this is a direct replacement for the factory water neck (or for a cracked/leaking original). On an S13 SR20DET swap, this is the right part to convert your engine's coolant routing to the friendlier S14/S15 layout while gaining the temp sensor port at the same time.

Installation Note for S13 SR Conversions

Converting an S13 SR20DET to the S14/S15 water outlet requires adding a bung for an additional water line source. The water neck itself is straightforward; the conversion work is what takes time. Plan for this if you're doing a fresh swap.

Fitment

• Nissan SR20DET S14 (Notchtop and Blacktop)
• Nissan SR20DET S15
• Nissan SR20DET S13 (with conversion to S14/S15-style water routing)

What's in the Box

• 1x ISR Performance S14/S15-style SR20DET water neck outlet with 1/8 NPT temp sensor port

Product Details

Brand: ISR Performance

Part Number: IS-WN-S14

Type: Engine Coolant Outlet / Water Neck

Engine Fitment: Nissan SR20DET

Style: S14/S15 (front-routed coolant)

Integrated Port: 1/8 NPT coolant temperature sensor port

Chassis Compatibility: S14, S15 direct replacement; S13 with conversion work

Application: Cleaner coolant routing, integrated temp sensor location

Sold: Individually

Legality: Off-road and competition use only