Joytrace Stainless Steel LS Engine Sensor Adapters: Coolant Temp M16x1.5→1/8 NPT, Oil Pressure M12x1.5→3/8 NPT

Overview

Meet the Joytrace dual-adapter kit designed for GM LS swaps and modern LS engines. Crafted in 304 stainless steel and CNC‑machined to tight tolerances, these adapters blend durability with precision, delivering steady sensor connections in demanding engine bays. The kit is engineered to fit common LS ports and oil galleries, enabling clean sensor integration during performance upgrades or routine maintenance.

Designed for both coolant temperature sensing and oil pressure sensing, the adapters help you consolidate fittings without sacrificing reliability. Expect a solid, metal feel when tightening, a snug seal, and confidence that a sensor connection will hold up under high‑temperature exhaust heat and corrosive surroundings.

What it fits and what you get

• Compatible with all GM LS engines, including LS1, LSX, LS3, and 5.3L/6.0L/6.2L variants.
• Includes two adapters in one complete kit: a coolant temperature adapter M16x1.5→1/8 NPT and an oil pressure adapter M12x1.5→3/8 NPT, each with its washer for proper sealing.
• Tailored for LS swaps: coolant port conversion replaces Gen III/IV heads’ plugs (4.8L–6.2L); oil‑galleries behind intakes are accessible via the oil adapter (LS1/LSX/LS3).
• Fits specific vehicle ports: 2000–2013 Silverado/Sierra coolant ports and 1997–2017 Camaro oil galleries.

Material, tolerance, and performance

• 304 stainless construction delivers high tensile strength and robust corrosion resistance, especially compared with aluminum alloys.
• Precision CNC machining aligns with ASTM A276 standards to ensure consistent threading and seal seating.
• Heat resistance capable of handling demanding exhaust environments (up to 1,500°F / 815°C) without losing integrity.
• Copper washers provide reliable sealing, with a recommended hand‑tighten torque of 18–22 ft‑lb to compress the washers properly.

In use, this dual‑adapter kit streamlines sensor installation during LS swaps or upgrades. The design supports a clean, integrated sensor path, reducing the need for multiple separate fittings and simplifying service in tight engine bays.

Installation notes

• Degrease threads before installation.
• Hand‑tighten until copper washers compress to achieve a seal, then apply appropriate anti‑seize to prevent cold welding.
• Kit is sized to be compatible with the stated ports and engine families for a broad range of LS builds.

Kit contents

This complete dual‑adapter kit includes both adapters and accompanying washers, ensuring you have what you need for full sensor integration without sourcing separate components later.