Buyer's Guide

🛒 Peugeot Motor Parts — Buyer’s Guide

Purchasing an engine or performance part for a Peugeot 106 or Citroën Saxo requires precision, correct fitment, and confidence. This Buyer’s Guide is designed to help you choose the right parts for your exact model, avoid compatibility issues, and understand the key differences between popular engine variants and components. Whether you’re restoring, upgrading, or replacing worn parts, this guide provides clear guidance to ensure you make the best purchase possible.

🔍 Step 1 — Identify Your Engine Type

The most important step in buying any engine or performance component is knowing your exact engine type. Peugeot and Citroën used multiple TU-series engines across the 106 and Saxo models, and each one has specific compatibility rules. Identifying your engine code ensures that the part you order fits perfectly.

Most common engine codes include:

  • TU1 — 1.1L engines (Peugeot 106 & Saxo)
  • TU3 — 1.4L engines (common on early 106/Saxo)
  • TU5J2 — 1.6 8v engines
  • TU5JP — 1.6 8v Multipoint Injection
  • TU5J4 — 1.6 16v engine (Peugeot 106 GTI & Saxo VTS)
  • TU5JP4/S (NFX) — Newer 1.6 16v variant for swaps & upgrades

If you’re unsure which engine your vehicle uses, check the engine block stamping, vehicle registration, or contact us with your VIN for quick verification.

⚙️ Step 2 — Choosing Between New & Used Engines

Both new and used engines are great options depending on your budget, performance goals, and the condition of your vehicle. Understanding the difference helps you pick the best option for your specific project.

Choose a Used Engine if:

  • You’re restoring or keeping the car budget-friendly
  • You want the original factory setup for your model
  • You’re replacing a failed engine without major upgrades
  • You prefer OEM factory reliability

Choose a New / Reconditioned Engine if:

  • You want long-term reliability and zero wear
  • You’re planning a performance build (ITBs, cams, racing use)
  • Your current engine has internal damage or wear
  • You want a “fresh reset” for longevity and peace of mind

If you are unsure, feel free to contact our team — we can guide you based on your driving style and performance expectations.

📐 Step 3 — Check Compatibility & Fitment

The Peugeot 106 and Citroën Saxo share several components, but compatibility is not always universal. Ensuring proper fitment saves you from ordering the wrong part, which can delay your project or increase installation costs.

Before buying, confirm:

  • Your exact engine code
  • Your vehicle year and model variation
  • Whether your car uses 8-valve or 16-valve engines
  • The ECU type and wiring harness version
  • If your gearbox matches the engine you plan to install
  • Your fuel system setup (Single-point, Multipoint, etc.)

If you’re uncertain, send us your VIN or current engine photos and we’ll verify fitment for you.

🏎️ Step 4 — Choosing the Right Performance Parts

Performance upgrades can dramatically improve your 106 or Saxo. However, choosing the wrong component can reduce performance or create mechanical issues. Below are the most common upgrade categories and recommendations.

Popular performance options:

  • Throttle Bodies (ITBs): Best with 1.6 16v engines (TU5J4 / NFX)
  • Exhaust Systems: Cat-back or full systems for better flow
  • Suspension Kits: Coilovers for road or rally setups
  • Air Intakes: High-flow setups for better breathing
  • ECU Tuning: Necessary when upgrading cams or ITBs
  • Lightweight Flywheels: Quicker rev response

If you’re building a track-focused or rally build, feel free to ask us for recommendations — we have experience with several proven setups.

💰 Step 5 — Plan Your Budget Wisely

The cost of upgrading or replacing an engine can vary significantly based on condition, brand, and level of performance. Knowing your budget ahead of time helps you decide whether a used component, refurbished engine, or new performance part is the best choice.

Typical cost ranges:

  • Used TU5J4 Engine: Moderate pricing depending on condition
  • Refurbished TU5JP4/S: Higher cost due to upgrades
  • ITBs / Performance Kits: Mid-to-high range
  • Suspension / Coilovers: Moderate to premium depending on brand
  • Exhaust Systems: Varies by configuration and materials

If you need help choosing the best option within your budget, our support team can assist with honest, experience-based recommendations.

🔧 Step 6 — Confirm Your Installation Plan

Correct installation is critical for engine reliability and performance. A professional mechanic experienced with Peugeot TU engines is strongly recommended, especially for engine swaps or performance upgrades.

Before installation, ensure your mechanic checks:

  • Engine mounts and brackets
  • ECU compatibility
  • Wiring harness differences
  • Fuel system pressure
  • Cooling system hoses and connections
  • Clutch, flywheel, and gearbox alignment

A correct installation ensures longevity, safety, and optimal performance — especially with performance-focused parts.

🤝 Step 7 — Contact Us for Fitment & Buying Support

If you are unsure which part, engine, or performance upgrade is right for your vehicle, our team is here to help. We can check compatibility, recommend the best configuration for your goals, and guide you through the buying process.

You can contact us for:

  • Engine compatibility confirmation
  • VIN-based fitment checks
  • Performance upgrade recommendations
  • Budget-based suggestions
  • Technical advice before ordering

With the right guidance, you can avoid mistakes, save money, and achieve the exact performance results you’re looking for.