Spark Plug Thread Repair Kit M14x1.25 – HSS Tap with 4 Threaded Inserts

Brief Overview

This spark plug thread repair kit addresses one of the most common maintenance challenges in engine rebuilds and cylinder head servicing: restoring stripped or damaged spark plug threads. The system combines a precision HSS cutting tap with four threaded steel inserts of varying depths, giving technicians the flexibility to accommodate different damage depths in a single kit. Whether you're restoring a classic engine or managing high-volume spark plug replacements, this is an essential solution. Pair this core kit with complete helicoil insertion systems for shops requiring full thread installation tooling.

Key Features

• HSS Thread Tap (M14 x 1.25): High-speed steel construction for durability and clean thread cutting; 65mm total length with 16mm hexagonal drive for secure mounting
• Four Variable-Depth Inserts: Threaded sleeves in M14 x 1.25 with depths of 9.5mm, 11.5mm, 12.7mm, and 19mm to match varying damage profiles
• Black Oxide Finish: Corrosion-resistant coating on inserts and shank; exposed silver cutting edges ensure precise performance
• Compact Design: Portable kit format for mobile servicing or bench repair work
• Direct Thread Restoration: Inserts establish new, durable internal threads while protecting underlying cylinder head material

Business Advantages for Resellers

• High-Margin Service Work: Spark plug thread damage is a frequent repair scenario; resellers can position this as an essential stocking item for engine shops and independent mechanics
• Repeat Orders: Technicians will deplete inserts with regular use; the modular design encourages consumable replenishment
• Competitive Pricing: Simple, focused kit without unnecessary tooling overhead—attractive margin on bulk orders
• Vendor Differentiation: M14x1.25 is the most common spark plug thread size; offering this standard alongside specialized glow plug kits broadens your catalog appeal

Technical Specifications

Specification	Details
Tap Size	M14 x 1.25
Tap Material	HSS (High-Speed Steel)
Tap Drive	Hexagonal, 16mm
Tap Length	65mm
Insert Count	4 pieces
Insert Depths (mm)	9.5, 11.5, 12.7, 19
Insert Material	Steel, black oxide finish
Application	Spark plug thread repair (cylinder heads)

Ideal For

• Engine rebuild shops managing batch spark plug replacements
• Independent mechanics tackling damaged threads without full engine removal
• Fleet maintenance facilities with recurring spark plug service needs
• Technical training environments demonstrating thread repair methodology

Why Resellers Choose This Kit

Spark plug thread damage doesn't require expensive machine shop outsourcing when this kit is in stock. The four insert depths mean fewer callbacks due to incorrect sizing, and the HSS tap cuts clean threads the first time. For resellers, it's a high-turn item with straightforward application—mechanics understand the need immediately, and the modular format supports repeat purchasing as inserts wear.

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Stock this kit in volume for engine shops. High demand. Proven margin.