Bomag 05740439 Oil Drain Gasket

The Bomag 05740439 Oil Drain Gasket is a genuine OEM component designed for a wide range of Bomag pavers and rollers, including BF 300 P and BF 300 C pavers, BW-series tandem rollers, single drum rollers, and pneumatic tyred rollers. As a direct OEM replacement, this gasket is manufactured to the same specification as the original, delivering a reliable, leak-free seal at the oil drain point. Confirmed fitment spans an extensive lineup — from BF 300-series pavers through BW 80, BW 100, BW 120, BW 138, BW 145, BW 151, BW 154, BW 174, and BW 177 model rollers — making part number 05740439 a versatile service item for mixed Bomag fleets. Keeping this gasket in good condition is one of the simplest ways to protect engine or hydraulic oil integrity during routine drain intervals.

Key Features

• Genuine OEM Sealing Integrity — manufactured to Bomag's original material and compression specification, ensuring the gasket compresses correctly and holds a leak-free seal at the oil drain port
• Drop-In Replacement — matches the original profile and thread interface exactly, so this gasket seats without modification on all listed machines
• Broad Fleet Coverage — fits BF 300-series pavers, BW-series tandem rollers including the BW 80 AD-2, BW 120 AD-5, BW 151 AD-5, and BW 177 DH-5, BW 145 D-5 and BW 124 DH-5 single drum rollers, and the BW 11 RH-5 pneumatic tyred roller
• Leak Prevention at Every Service Interval — a degraded or reused drain gasket is a leading cause of slow oil seeps; replacing it at every oil change eliminates that risk and protects the machine's lubrication system
• Low-Cost, High-Impact Service Part — at a fraction of the cost of oil-related repairs, this OEM gasket is the correct item to stock for any scheduled maintenance program covering Bomag paver or roller fleets

The oil drain gasket forms the seal between the drain plug and the oil pan or drain port, preventing engine or hydraulic oil from leaking after a drain plug is reinstalled. When the gasket is crushed, cracked, or hardened from heat cycling, it loses its ability to compress evenly against the mating surface — even a correctly torqued plug will seep if the gasket beneath it has deteriorated. Replacing this gasket at every oil change is standard maintenance practice and is the most reliable way to ensure the drain port remains fully sealed between service intervals.

Part Details

Compatibility & Fitment

Verify Before You Order

Fitment is machine-number and revision-specific; always confirm your model and serial number against the fitment list.

Why Buy From DHS Equipment

Every part is verified against the manufacturer's part number before it ships, so what you order is what arrives. We carry parts from leading OEM brands and our own DHS Quality Parts line of professional aftermarket components. Need help finding the right part? Our team is available to confirm compatibility whenever you need it. Orders are processed fast to keep your jobs on track. We don't just sell parts. We keep you jobsite ready.

Questions? Contact our team at [email protected] or 866-611-9369 — DHS Equipment is here to help you maintain peak performance.