Supertech Valve Keepers Nissan RB25DET/RB26DETT 6mm 6°

Supertech CNC machined valve keepers in a set of 24 halves for Nissan RB25DET (2.5L 24v) and RB26DETT (2.6L 24v) engines. Single groove 6° configuration for 6.00 mm valve stem diameter.

Technical specifications

• Manufacturer: Supertech
• Origin: Made in USA (San Jose, California)
• Part number: KPR-6N-6-ST-24
• Type: Valve Keepers (Valve Locks)
• Lock angle: 6.00°
• Compatible stem diameter: 6.00 mm
• Configuration: Single Groove
• Machining: CNC Machined (precision)
• Packaging: Set of 24 halves (2 per valve × 12 valves)

How they work

Valve keepers (also called "locks" or "cotters") are critical parts that secure the spring retainer onto the valve stem. They fit into the groove machined on the stem to lock the valve and its return spring together. 2 keeper halves are required per valve.

Supertech keepers are CNC machined to deliver dimensional precision superior to standard forged keepers, an optimal fit in the stem groove and better load distribution under the high spring pressures of built engines.

Supertech is a leading American manufacturer of high performance valvetrain components (valves, springs, retainers, keepers, seats, seals), designed and manufactured in the USA to aerospace-grade precision specifications.

Applications

Compatible with Nissan inline-6 engines:

• Nissan RB25DET (2.5L 24v turbo)
• Nissan RB26DETT (2.6L 24v twin turbo)

Important: this set contains 24 halves, equivalent to 12 valves equipped (2 halves per valve). As the RB25DET / RB26DETT engine has 24 valves total, 2 sets (48 halves) are required for a complete engine, or 1 set covers one side only (intake OR exhaust). Verify compatibility with your valves and retainers (single groove required).