DNJ Head Spacer Shim 0.020 Thick Cylinder Head

Description

Product Overview

The DNJ Head Spacer Shim is a precision‑engineered 0.020 inch thick aluminum shim designed for the 1994‑2004 Nissan Frontier, Xterra, and 240SX equipped with the 2.4L KA24DE engine. Manufactured by DNJ Engine Components, a trusted name with over 30 years in the automotive aftermarket, this shim fits on the engine block side to provide a consistent gap between the block and cylinder head. Its lightweight yet robust construction ensures durability under high‑temperature conditions while maintaining exact tolerances for optimal engine performance.

Usage

This shim is ideal for owners looking to restore or enhance engine compression, reduce valve train wear, or correct minor head gasket clearances. Install it during a head gasket replacement or as part of a performance upgrade on the engine block side. Suitable for both DIY enthusiasts and professional mechanics, the shim works in everyday driving, spirited weekend runs, and light track use.

Why Choose Us

DNJ Engine Components supplies a full line of domestic and Japanese engine parts, ensuring each shim meets strict OEM specifications. Our products undergo rigorous quality testing, guaranteeing a perfect fit and long‑term reliability. By selecting DNJ, you benefit from a brand recognized for consistency, trusted by mechanics nationwide, and backed by a responsive customer support team.

Key Features

• 0.020 inch thickness for precise block‑to‑head spacing
• High‑grade aluminum construction for heat resistance
• OEM‑compatible dimensions for 1994‑2004 Nissan KA24DE models
• Reduces valve train stress and improves compression
• Easy installation during gasket replacement or engine rebuild

FAQ

Will this shim fit a 1995 Nissan Frontier?

Yes, the shim is specifically sized for 1994‑2004 Nissan models with the KA24DE engine, including the 1995 Frontier.

Do I need to replace the head gasket when installing the shim?

While the shim can be installed alone, it is recommended to replace the head gasket at the same time to ensure a proper seal and optimal performance.

Can I use this shim for performance tuning?

Absolutely. The shim’s precise thickness helps increase compression, making it a popular choice for mild performance upgrades.

Is the shim compatible with aftermarket cylinder heads?

The shim is designed for OEM head dimensions; compatibility with aftermarket heads should be verified based on the head’s thickness specifications.

What is the warranty on this product?

DNJ offers a limited one‑year warranty covering manufacturing defects, ensuring you receive a reliable component.