ATRO PL1070-HTHigh Temperature Engine MountReplaces Kenworth M501

Introduction

ATRO PL1070-HT is a high-temperature polyurethane engine mount for Kenworth and Peterbilt conventional trucks, replacing Kenworth M501 (also M501-70NR) and Peterbilt 05-08968. The engine mount isolates engine vibration from the frame and supports the engine through full thermal and torque cycles. ATRO’s high-temperature polyurethane is engineered to outlast OE rubber by three to five times and resists oil, grease, hydraulic fluid, diesel fuel, ozone, and road salt. Made in the USA and backed by ATRO’s 3-year manufacturer warranty.

Signs You Need a New Engine Mount

• Excessive engine movement or shifting under throttle
• Heavy vibration through the cab at idle or low RPM
• Visible cracking, separation, or sagging of the mount material
• Driveline angle or radiator-hose alignment off-spec from baseline

Specifications

Cross References

This part replaces or is equivalent to the following part numbers:

• Kenworth: M501, M501-70NR
• Peterbilt: 05-08968
• Meritor (Euclid): R307506, E-7506
• Automann: M17804, M17804UB
• Dayton Parts: 329-144U
• Energy Suspension: 30.401, 304010
• Also known as: Dyco D4, D004, D326, DT1415; Gaff 12355, 11707

Applications

This high-temp engine mount fits the following trucks:

• Kenworth conventional models using OEM engine mount M501 / M501-70NR
• Peterbilt conventional models using OEM engine mount 05-08968

Verify your OEM engine mount part number and mounting position before ordering Kenworth and Peterbilt use several similar polyurethane mounts at different positions in the cab and engine isolation system.