Nissan RB20 and RB25 and RB30 exhaust manifold stud kit. Including copper lock nuts and hardened flat washers.
Nissan RB20 and RB25 and RB30 exhaust manifold stud kit. Including copper lock nuts and hardened flat washers.
stud kit for rb series engines with hex key
rb manifold stuf with copper lock nut and washer and hex key
rb manifold stud with hex key inserted
view of thread rb manifold stud

Nissan RB20 / RB25 / RB30 Exhaust Manifold Stud, Nut & Washer Kit

  • Sale
  • $99.00 NZD

Replace your Nissan RB engine's exhaust manifold studs with our high-tensile stud, nut and washer kit, designed to replace worn, corroded or damaged factory manifold studs.

Suitable for Nissan RB20, RB25 and RB30 series engines, including naturally aspirated and turbocharged variants, this complete kit features zinc chromate-coated steel studs, copper-plated exhaust lock nuts and hardened flat washers.

Each stud features an internal hex drive for easier installation. This kit is ideal for exhaust manifold repairs, turbo upgrades, aftermarket exhaust manifolds, engine rebuilds or replacing ageing factory hardware.

Important: This kit does not fit RB26DETT engines. See our other listing for the correct RB26DETT exhaust manifold stud kit.

Engine & Vehicle Fitment

  • Nissan RB20E: 2.0L naturally aspirated petrol

  • Nissan RB20DE: 2.0L naturally aspirated petrol

  • Nissan RB20DET: 2.0L turbocharged petrol

  • Nissan RB25DE: 2.5L naturally aspirated petrol

  • Nissan RB25DET: 2.5L turbocharged petrol

  • Nissan RB25DET NEO: 2.5L turbocharged petrol

  • Nissan RB30E: 3.0L naturally aspirated petrol

  • Nissan RB30ET: 3.0L turbocharged petrol

Suitable for applicable Nissan vehicles fitted with these engines, including:

  • Nissan Skyline R31, R32, R33 and R34

  • Nissan Cefiro A31

  • Nissan Laurel

  • Nissan Stagea

  • Nissan Fairlady Z Z31 (RB-powered variants)

  • Holden VL Commodore RB30E / RB30ET

  • Vehicles fitted with Nissan RB engine conversions

What's Included

  • 12 × M10 × 1.25 high-tensile exhaust manifold studs with internal hex drives

  • 12 × Copper-plated exhaust lock nuts

  • 12 × Hardened flat washers

Why Choose This Exhaust Manifold Stud Kit?

High-tensile steel studs

Manufactured from high-tensile steel to provide strong, reliable exhaust manifold fastening and clamping performance.

Corrosion-resistant coating

The studs feature a zinc chromate coating to help protect against corrosion.

Copper-plated exhaust lock nuts

Designed for exhaust applications, the copper-plated lock nuts reduce seizing and make future removal easier.

Easy hex-drive installation

Each stud features an internal hex drive, allowing straightforward installation using the supplied hex key without needing to double-nut the stud.

Ideal OEM hardware replacement

A practical upgrade when replacing old, seized or damaged factory exhaust manifold studs, particularly during manifold repairs, turbo upgrades, aftermarket manifold installation or engine rebuilds.