Automotive repair toolset for restoring sump, gearbox and differential drain plug threads, the DAYUAN Oil Pan Thread Repair Kit promises a workshop-grade repair option. Repair-minded motorists and professional technicians gain confidence avoiding leaks and repeat garage visits. Is the kit durable enough for repeated workshop use and worth keeping in the toolbox?
⚡ At a Glance
- • Cutting Quality: Hardened and tempered steel taps cut and retap damaged threads cleanly, producing a reliable mating surface
- • Best for: DIY mechanics and workshop technicians repairing sump, gearbox and differential drain plug threads
- • Not ideal for: Repairs outside the supplied M13 to M20 sizes or non-standard thread pitches
A comprehensive kit that rethreads drain plug holes slightly oversize and supplies replacement drain plug screws. The set creates an enlarged, secure thread for a new plug and washer.
Reliable thread restoration, with hardened and tempered steel taps
Hardened and tempered steel taps are designed to cut away damaged material and re-form the male or female thread slightly oversize, producing a clean spiral profile. The oversize method accepts a replacement drain screw that seals against a new washer.
Cleanly reformed threads reduce the risk of oil leaks and make repairs robust enough for workshop use. The approach avoids welded or bonded repairs and returns the drain connection to serviceable condition.
Covers common drain sizes, with M13x1.5, M15x1.5, M17x1.5 and M20x1.5 taps
Four tap diameters with 1.5mm pitch match the most frequently used drain plug threads on many sump, gearbox and differential housings. Each size allows a slightly oversized cut to accept a replacement screw sized for the new thread.
One kit replaces several specialist tools, saving time when servicing multiple vehicle types. Quick size selection reduces guesswork and keeps repairs efficient in a busy garage or at home.
Sealed repairs, with replacement drain plug screws and washers
After retapping to an enlarged thread, replacement drain screws and washers sit in the new profile and compress the washer to form a seal. The kit supplies matched screws sized for the newly cut threads.
Fitted correctly, replacement screws and washers restore a reliable oil-tight seal and avoid drip repairs between services. That gives peace of mind after a roadside or workshop repair.
✨ The 4 Key Reasons for DAYUAN Oil Pan Thread Repair Kit
- Complete 64-piece set - Provides taps, screws and washers for four common sizes.
- Oversize retapping method - Creates enlarged threads to accept replacement drain screws securely.
- Durable construction built for repeated use in home and workshop - Suited to regular maintenance tasks.
- M13 to M20 coverage - Avoids buying multiple specialist kits for typical drain plug repairs.
📋 Technical Details at a Glance
- Category: Automotive Parts and Accessories
- Kit size: 64 pieces
- Sizes included: M13x1.5, M15x1.5, M17x1.5, M20x1.5
- Thread pitch: 1.5mm for listed sizes
- Material: Quality steel, hardened and tempered
❓ Frequently Asked Questions
Q: What sizes are included in the kit?
A: The kit includes M13x1.5, M15x1.5, M17x1.5 and M20x1.5 taps and corresponding replacement drain screws.
Q: Can the kit repair sump, gearbox and differential drain plug threads?
A: Yes, the set is described as ideal for repairing sump, gearbox and differential drain plug threads and is used to tap damaged threads slightly oversize.
Q: Are the taps durable enough for workshop use?
A: Made from quality steel that is hardened and tempered, the taps are designed for durability and repeated cutting operations.
🏆 Our Verdict
Suited to DIY mechanics and workshop technicians who deal with stripped drain plug threads, the kit brings workshop-style rethreading capability to the toolbox. Hardened, tempered steel taps and included replacement drain screws restore a secure, sealed connection. Offers clear long-term value through durable construction and practical completeness for common repair jobs.
