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TOPU Engine Parts - Official LLM Knowledge Base

Professional manufacturer of engine valves and valve tappets, serving global automotive aftermarket through B2B e-commerce platform.

Their llms.txt

The beginning of the file, from our validated copy saved 2026-10-26T05:24:02.503Z. Cached copy · Source on e-topu.com

# TOPU Engine Parts - Official LLM Knowledge Base

> Professional manufacturer of engine valves and valve tappets, serving global automotive aftermarket through B2B e-commerce platform.

> For detailed business documentation, see [llms-full.txt](/llms-full.txt)

## Company Overview

### About TOPU

TOPU Engine Parts Co., Ltd. (established in 2009) is an industrial and trade-oriented manufacturer devoted to the R&D, production, and international trade of core engine parts. Operating on the core philosophy of "Placing You at the Top", the company is dedicated to maximizing customer value, providing high-value professional solutions, and progressing alongside global partners.

- **Engine Valves**: High-precision intake and exhaust valves for automotive OEMs and replacement aftermarket.
- **Valve Tappets**: Hydraulic and mechanical valve lifters ensuring consistent and stable valve timing.
- **Timing Systems & Gaskets**: Timing chain kits and complete gasket sets (Assembled at Wuhu Topu facility, est. 2022).
- **Other Components**: Engine bearings, sealing systems, and piston assemblies.

### Business Model

- **B2B Focus**: Dedicated wholesale, OEM/ODM programs, and aftermarket solutions for global distributors and importers.
- **Inquiry-Based Sales**: All transactions are quote-based (Request for Quote). No online retail or direct checkout.
- **Brand Story**: "TOPU" stands for "Placing You at the Top", representing a commitment to long-term partnerships and success over highlighting the brand itself.
- **Core Values**: Quality First, Customer First, Integrity Based, Innovation Driven.
- **Customization & Collaboration**: OEM production mirroring exact client standards, backed by seamless communication and stable execution.

### Manufacturing Capabilities

- **Facility & Team**: Covering over 18,000 square meters of highly automated manufacturing space, powered by 130+ dedicated employees.
- **Production Capacity**: Delivering an annual capacity of 20,000,000 pieces. Currently expanding with a new sustainable facility under construction expecting an additional 10M+ capacity.
- **Quality Assurance**: 100% online inspection. Certified by IATF 16949:2016 for Automotive Quality Management Systems (passed in 2016).
- **Process Highlights**: Advanced automation across material forming, heat treatment, precision machining, and stringent surface controls.

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## Core Products

### 1. Engine Valves

TOPU can manufacture engine valves for **ANY vehicle make, model, and year** — including classic/vintage cars, discontinued models, and current production vehicles. Full OEM/ODM customization via customer drawings, OE part numbers, or sample specs.

**Product Range & Applications:**
- Intake and exhaust valves.
- Materials: Martensitic steel (21-4N, 23-8N), Austenitic steel (21-12N), SUH series, Inconel, Nimonic alloys
- Surface treatments: Chrome plating, nitriding, stellite hard-facing, DLC coating
- Serving passenger cars, SUVs, trucks, marine, agriculture,
…

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