DEEFILL M12.1-1.75 x 15mm Oversize Piggyback Oil Drain Plug – Stainless Steel Self-Tapping Repair Kit

Discover the DEEFILL M12.1-1.75 x 15mm oversize piggyback oil drain plug, a stainless steel self tapping solution designed to address worn oil pan threads without replacing the entire pan. Built from durable 304 stainless steel and precision machined with CNC technology, this plug aims to deliver a reliable seal and a practical repair option for maintenance-ready vehicles.

Why choose a piggyback design? The oversized plug is engineered to re thread damaged or stripped oil pan holes, offering a cost effective path to restore function and minimize downtime. It is tested to fit and seal like the original drain plug, giving you a practical alternative to more invasive repairs while preserving the oil pan’s integrity.

Key benefits at a glance

• Self tapping, oversize piggyback design helps restore damaged threads without panel replacement.
• Stainless steel 304 construction provides corrosion resistance and lasting strength.
• CNC cut precision ensures a tight fit and reliable seal.
• Designed to match the fit and function of the original drain plug with tested compatibility.
• Cost effective solution that can save time, labor, and money on maintenance projects.

What’s included

• 1 pcs stainless steel self tapping piggyback oversize oil drain plug, M12.1-1.75 x 15mm
• 1 pcs L shaped Allen wrench for installation
• 2 pcs fluorine O rings for main plug
• 2 pcs red copper gaskets for piggyback connection

Installation at a glance

Preparation matters for a solid seal. Start by cleanly wiping the oil pan thread area to remove oil and debris. Thread the piggyback plug in a few threads, then back it out and reinsert to bottom out gently. Clean any loose material with brake cleaner. Finally, tighten with a torque of about 14 ft-lbf using the included T shaped wrench. For future removal, hold the larger bolt steady with a wrench while loosening the piggyback screw.

This approach offers a practical, straightforward path to repairing threads without larger repairs. It is best used as part of a careful maintenance workflow, following the included steps and torque guidance to help maintain a dependable seal over time.

Usage notes

For best results, ensure the area around the threads is clean and free from oil before starting. The kit includes multiple seals to support a reliable fit, and the plug is designed to work with standard drain configurations while minimizing disruption to routine maintenance schedules.