Product Title
8-98153678-2 Oil Filter Head for Isuzu 4JJ1 Engine

Product Overview
This oil filter head (also known as oil filter housing base) is specially designed for the Isuzu 4JJ1 engine series, with part number 8-98153678-2. Mounted on the engine block, this filter head secures the oil filter and directs pressurized oil from the oil pump into the filter for cleaning. The filtered oil then returns through the internal passages of the filter head to lubricate various engine components. Manufactured from high-strength aluminum alloy with precision machining and sealing tests, it is a critical connecting component of the engine lubrication system.

Key Features

• Precision casting – Made of high-strength aluminum alloy, lightweight yet strong with good heat dissipation.

• Optimized internal oil passages – Smooth-flow design minimizes pressure loss and ensures sufficient oil flow.

• Reliable sealing – Designed to work with sealing gaskets to effectively prevent oil leakage.

• Integrated bypass valve – Built-in bypass valve (depending on specific design) ensures oil continues to circulate even if the filter becomes clogged, preventing engine dry running.

• OEM specifications – Manufactured to Isuzu original technical drawings, ensuring direct fitment.

Technical Specifications

• Engine Model: Isuzu 4JJ1

• Part Number: 8-98153678-2

• Type: Oil Filter Head / Oil Filter Housing Base

• Material: High-strength aluminum alloy

• Packaging: Individual packaging

Installation & Usage Tips

• Before installation, verify the part number (8-98153678-2) matches your original unit.

• Clean both the engine block mounting surface and the filter head contact surface before installation to remove any residual old gasket or debris.

• Always use a new sealing gasket and tighten mounting bolts to specified torque.

• Before installing the oil filter, apply a small amount of oil to the filter seal ring, then tighten to specified torque.

• After installation, start the engine and check the filter head and filter interface for any oil leaks.

Packaging & Delivery

• Each unit comes in individual packaging with a sturdy carton box.

• Adequate stock available; orders are shipped within 1–3 working days.