Oil Drain Plug Thread Repair Sets – M13, M15, M17, M20, M22

Brief Overview

Stripped oil drain plug threads are one of the most common—and most frustrating—repairs in any shop. This kit eliminates the need for costly block replacements or workarounds. Rather than drilling and re-tapping from scratch, you tap the damaged hole to the next standard size, install the included oversized drain plug, and secure with the provided copper crush washer. The set covers the five most prevalent thread sizes across European and Japanese vehicles, making it an essential addition to any shop's thread-repair arsenal.

For shops handling higher-volume thread repairs, also consider our comprehensive thread restoration collection to address spark plug and other critical fastener repairs.

Key Features

• Five Standard Sizes Included: M13, M15, M17, M20, M22 threads cover 85–90% of common vehicles
• Complete Repair Solution: Each set includes a precision steel tap/thread chaser, six oversized zinc-plated drain plugs with domed heads, and a supply of copper crush washers
• Bright Zinc-Plated Plugs: Corrosion-resistant finish ensures durability in wet engine environments
• Pre-Organized Storage Case: Molded plastic tray with labeled compartments keeps all components organized and accessible; clear hinged lid allows quick inventory checks
• Copper Crush Washers Included: Multiple sealing washers in each kit eliminate the need for separate ordering
• No Specialized Equipment Required: Standard 1/4-inch drive tap wrench compatible; no air tools or specialized fixtures needed

How It Works

1. Identify the stripped thread size from the original plug
2. Use the included tap to carefully thread-chase the damaged hole to the next standard size (e.g., M13 hole becomes M15)
3. Install the oversized drain plug from the set with the copper crush washer
4. Torque to specification and return the vehicle to service

This approach restores structural integrity without weakening the surrounding material or requiring invasive drilling.

Business Advantages for Resellers

• High Profit Margin: Low material cost; charged labor typically justifies 150–250% markup on kit sale alone
• Repeat Revenue Driver: One damaged thread creates one kit sale; popular vehicles with known drain plug issues (Volkswagen, Ford, BMW) generate predictable demand
• Shop Loyalty Builder: Shops that stock these kits become the "go-to" resource for quick drain plug repairs, increasing customer retention
• Bulk Order Opportunity: Distribute kits to independent shops, quick-lube franchises, and fleet maintenance providers—each location will deplete stock regularly
• Shelf-Friendly: Compact cases occupy minimal space while delivering high-per-unit value
• Minimal Training Required: Straightforward repair process means less technical support burden on your team

Technical Specifications

Specification	Detail
Thread Sizes Covered	M13, M15, M17, M20, M22
Plugs Per Set	6 (oversized, zinc-plated)
Tap Type	Steel thread chaser with squared drive shank
Sealing Washers	Copper crush washers (qty: 12–15 per set)
Finish	Bright zinc plate (plugs); hardened steel (tap)
Storage	Molded plastic case with hinged clear lid
Compatibility	Most European and Japanese vehicles; fits standard 1/4-inch tap wrench

Reseller Call to Action

Stock these in multiples. One kit per shelf is never enough—the moment it sells, a shop is calling for a replacement. Bundle them with specialized drain plug extraction sockets to create a complete drain plug repair package and increase average transaction value.

Ideal for:

• Independent repair shops
• Quick-lube and oil-change franchises
• Fleet maintenance facilities
• Mobile mechanics and roadside repair services
• Automotive technical schools and training centers

Order in bulk today and establish yourself as the trusted source for thread repair solutions.