Engine 4g13 mitsubishi

The Mitsubishi 4G13 is a 1.3L SOHC 12-valve or 16-valve inline-4 engine. When sourcing, you must confirm the fuel system type (Carburetor vs. Multi-Point Injection/MPI) as they are not directly interchangeable. Ensure the cylinder head material is high-grade aluminum alloy and the engine block is cast iron for durability. Verify the compression ratio (typically 9.5:1 to 10:1) and horsepower output (approx. 73-82 hp) to ensure it matches the specific vehicle application, such as the Mitsubishi Lancer, Colt, or Proton Saga.

A Brand New (Aftermarket) engine should have zero mileage and come with a factory test report. Refurbished/Remanufactured engines should have been stripped, cleaned, and fitted with new pistons, rings, bearings, and gaskets; ask for a detailed list of replaced components. Used (JDM/Second-hand) engines should be checked for compression test results and signs of oil sludge under the valve cover. Always prioritize suppliers on Made-in-China.com who provide video startups or live testing footage.

Ensure the manufacturer follows ISO 9001 or IATF 16949 quality management systems, which are specific to the automotive industry. For environmental compliance, verify if the engine meets the Euro 2 or Euro 3 emission standards required by your local transport authority. Each engine must have a clear, legible Engine Number stamped on the block that matches the Certificate of Origin to avoid customs clearance issues.

If you are looking for a plug-and-play solution, source a Complete Engine (Long Block with manifolds and accessories). A Short Block only includes the block, crankshaft, and pistons, requiring you to reuse your old cylinder head. For B2B buyers, Long Blocks are generally preferred to reduce labor costs and ensure component compatibility between the head and the block.

Engines are heavy and fragile. Insist on ISPM-15 compliant fumigated wooden crates to prevent damage and meet international shipping regulations. The engine must be drained of all fluids (oil and coolant) before shipping to comply with dangerous goods regulations for sea freight. Request vacuum-sealed plastic wrapping inside the crate to prevent rust during long-term sea transit.

The primary risk is internal mechanical failure that isn't visible externally. Mitigate this by using Trade Assurance services on Made-in-China.com to protect your payment until the goods are verified. Hire a third-party inspection agency (like SGS or Intertek) to perform a bore-scope inspection and a crankshaft rotation test before the final balance is paid.

Focus on the warranty period rather than just the unit price; a standard B2B warranty should be 6 to 12 months. Negotiate for spare parts kits (gaskets, oil filters, spark plugs) to be included in the bulk price. For orders exceeding 10 units, aim for a 10-15% volume discount and discuss OEM branding if you are a distributor.

You will need a Commercial Invoice, Packing List, Bill of Lading, and a Certificate of Origin. Crucially, ensure the Engine Serial Numbers are listed on the packing list. Some countries also require a Non-CFC declaration or an Emission Standard Compliance Certificate. Check your local HS Code (typically 8407.33) for specific tariff rates.