BPS Caterpillar 3406E/C15/C15 Acert Spacer Plate - 6I4421

Protect Your Engine: BPS Diesel Spacer Plate – Truckers’ Liner Lifesaver for Crack-Free CAT Performance

These engine block spacer plates were designed to reduce stress on the liner flange, which can cause cracking. The spacer plate is just a few thousandths of an inch thinner than the liner flanges, ensuring the correct liner protrusion and guaranteeing proper head gasket sealing.
A new spacer plate should always be used when overhauling your engine or whenever the cylinder head is removed. It is an inexpensive assurance that your engine will be sealed properly, preventing costly leaks and failures that could sideline your rig during critical hauls.
We offer two sizes: the standard .338" thickness (part number 6I4421) and the .335" thickness (part number 1389381). Choose the right one for your setup to maintain peak efficiency and durability in extreme trucking conditions.

Key Features

• Stress-Reduction Design: Engineered to minimize pressure on the liner flange, preventing cracks and extending component life in high-vibration, heavy-duty environments.
• Precise Thickness: 0.338" standard size (alternative .335" available) ensures optimal liner protrusion for flawless head gasket sealing and engine integrity.
• Overhaul Essential: Recommended replacement during engine rebuilds or cylinder head removals, providing affordable protection against leaks and failures.
• Durable Construction: Built to withstand extreme temperatures and stresses common in CAT 3406E/C15/C15 ACERT applications, ideal for long-haul reliability.
• Cost-Effective Assurance: Inexpensive upgrade that safeguards your engine, reducing downtime and repair costs for truckers on demanding routes.

Cross References
• OEM: 6I4421
• OEM: 1389381