The cylinder head is the brain of your engine. It controls airflow, houses the valves and camshafts, and seals the combustion chamber. When it fails due to a cracked valve seat, warpage, or cam journal damage, the engine loses power, overheats, or simply won't run. Finding the right cylinder heads for sale is critical. You need more than just a part that fits; you need a component that restores original performance and reliability. The market is flooded with options: new OEM heads, remanufactured heads, used heads, and aftermarket castings. How do you choose? A new OEM head is expensive. A used head is a gamble—it could have hidden cracks or wear. A quality remanufactured or new aftermarket head is often the best balance of cost, reliability, and performance. When searching for cylinder heads for sale, look for suppliers that provide full disclosure. What is the casting material? Is it pressure tested for cracks? Are the valve seats and guides new? Are the mating surfaces machined to exact flatness specifications? At Hebei Oujia, we understand these concerns. Our cylinder heads for sale are sourced and processed to meet strict standards. Many are fully assembled cylinder head assemblies, ready to bolt on, saving you time and ensuring proper valve timing. We offer heads for a vast range of engines, from common passenger car motors to commercial diesel engines. Don't just buy a cylinder head; invest in a solution that fixes the problem for the long term.
The Mitsubishi 4G94 is a 1.8L or 2.0L, 16-valve, DOHC gasoline engine known for its smooth power delivery and durability. It powered numerous vehicles, including Mitsubishi Lancer and Outlander models, and some variants from other manufacturers. Its popularity means there is a steady demand for parts, especially the cylinder head. If you're looking for a 4G94 for sale, either as a complete engine or for key components, understanding its specifics is important. The 4G94 head is an aluminum design with shim-under-bucket valve adjustment. Over time and mileage, common issues can include worn valve guides, stretched timing belts (which can cause valve-to-piston interference if broken), and occasional cracking between the valve seats in high-stress applications. When you need a 4G94 for sale, you typically have a few options: a used engine from a salvage yard, a rebuilt short or long block, or individual components like a cylinder head. For many repair scenarios, replacing just the cylinder head is the most cost-effective repair if the bottom end is in good condition. We specialize in providing solutions for engines like the 4G94. We offer quality cylinder heads for sale that are specific to the 4G94, often available as bare castings, fully assembled, or as part of a complete cylinder head assembly that includes the camshafts, valves, springs, and lifters. This turns a complex rebuild into a simple swap. When you source a 4G94 for sale or its components from us, you get a part that has been inspected, machined as necessary, and is ready to restore your engine's compression and power.
The Mitsubishi 4M40 is a legendary 2.8L turbo-diesel engine. Renowned for its torque, fuel economy, and near-indestructible reputation, it is the workhorse found in Mitsubishi Pajero/Montero, L200/Triton pickups, and various commercial vehicles worldwide. These engines are built to last hundreds of thousands of kilometers, but even they require maintenance and repair. The cylinder head on a diesel engine like the 4M40 is under tremendous stress from high compression and combustion pressures. Common failure points include cracked heads (often between the valve seats and pre-combustion chambers), worn valve guides, and damaged valve seats. Finding a genuine 4M40 for sale, particularly a quality cylinder head, can be challenging and expensive if going the OEM route. The aftermarket offers solutions, but quality varies wildly. A poor-quality casting or improper machining can lead to immediate failure. This is where an expert supplier is invaluable. We cater to the diesel market and understand the 4M40 intimately. Our offerings for the 4M40 for sale include fully refurbished cylinder heads that have been thermal cleaned, crack-tested, machined flat, and fitted with new valve seats, guides, and valves. We often supply them as a complete cylinder head assembly, which may include the refurbished head, new head bolts, and a head gasket kit. For workshops and vehicle owners, this eliminates guesswork. You receive a component that has been rebuilt to correct specifications, ready to handle the demands of a turbo-diesel. Whether you're rebuilding a Pajero for overland travel or keeping a fleet of commercial trucks running, sourcing a reliable 4M40 for sale (or its critical components) from a trusted partner is the key to a successful, lasting repair.
Replacing a cylinder head is a major job. The last thing you want after all that labor is to discover the new head has a flaw, or that the valve timing is off because the assembly wasn't done correctly. This is why opting for a complete cylinder head assembly is the smart choice for both professional mechanics and serious DIYers. A cylinder head assembly is more than just a bare casting. It is a fully assembled, ready-to-install unit. It typically includes the machined head, new valves, springs, retainers, valve seals, and often the camshafts, rocker arms, or lifters—essentially everything bolted to the top of the head. The advantages are clear: Quality Assurance: The assembly is built by specialists who understand clearances and tolerances. Valves are lapped or machined for a perfect seal. Time Savings: It eliminates hours of meticulous assembly work, freeing the technician to focus on the engine block preparation and reinstallation. Warranty Simplicity: The entire assembly is covered under one warranty, rather than dealing with multiple part suppliers if something goes wrong. Peace of Mind: You know the critical component has been professionally assembled and tested. At Hebei Oujia, we champion the cylinder head assembly solution. For popular engines like the 4G94, 4M40, and the ubiquitous 4G18, we supply complete, quality-checked assemblies. This approach aligns with our mission to provide not just parts, but reliable solutions that get our customers' vehicles back on the road faster and with greater confidence. It turns a complex engine rebuild into a more manageable component replacement.
With 17 years of dedicated focus, Hebei Oujia Import and Export Trade Co., Ltd. has established itself as a global authority in engine components. We bridge the gap between precision manufacturing and the worldwide aftermarket. Our core philosophy is partnership—we work with over 7,600 rigorously vetted factories across China to curate a catalog of 74,000 products covering 26,000 models, all maintained to a high standard of quality. Our expertise is not just in trading but in understanding engines. Take the Mitsubishi 4G18 engine as a prime example of our depth. The 4G18 is a cornerstone 1.6L engine, and we support it completely. For the 4G18, and engines like the 4G94 and 4M40, we don't just list a "cylinder head." We provide the right cylinder head: the correct casting for the model year, the proper valve size, and the right configuration. We offer these as bare castings for machine shops, as fully assembled cylinder head assembly units for workshops, and as part of complete engine assemblies for wholesale buyers. Our products, backed by a 100,000-kilometer guarantee, are exported to discerning markets in Europe, the Americas, the Middle East, and Asia. We serve two main customer groups: the aftermarket, where shops and retailers need reliable parts, and international partners seeking OEM or private-label manufacturing for their own brands. When you source cylinder heads for sale or a specific engine like a 4M40 for sale from Oujia, you are tapping into a network built on reliability, technical knowledge, and a commitment to providing solutions, not just transactions. Stop the frustrating search for the right part. Whether you need a generic cylinder head assembly for a common engine, a specific 4G94 for sale for a Mitsubishi repair, or a rugged 4M40 for sale for a diesel overhaul, Hebei Oujia is your definitive source. Visit the Hebei Oujia website now. Use our powerful search to find parts by engine code—4G94, 4M40, or any other. Browse our extensive listings for cylinder heads for sale, filter by assembly type, and view detailed specifications and photos. Contact our knowledgeable sales team for a custom quote, to discuss bulk pricing, or to explore our private-label and OEM partnership opportunities. Make the smart choice for your next engine project. Partner with a supplier that combines massive inventory with rigorous quality control. Click to connect with Oujia and experience the confidence that comes with 17 years of specialized engine parts expertise.
A bare cylinder head is just the machined casting without any internal parts (valves, springs, camshafts, etc.). It's for machine shops or builders who want to install their own components. A complete cylinder head assembly comes fully built with all internal parts installed, pre-assembled, and often includes the camshafts. It's a "ready-to-bolt-on" unit that saves significant time and ensures professional assembly.
For a critical diesel component like the 4M40 head, insist on documentation. A reputable supplier should confirm the head has been Magnaflux or pressure tested for cracks, machined for flatness, and fitted with new valve seats and guides. Ask about the origin of the casting and the warranty. Our refurbished 4M40 heads undergo this full process and are sold as complete, tested assemblies.
Not always. While the 4G94 family shares a core design, there can be differences between the 1.8L and 2.0L versions, and changes across model years (e.g., sensor mounting points, minor porting). It is crucial to match the head casting number or provide your vehicle's VIN/engine number to ensure you get the correct 4G94 for sale head for your specific application.
Yes, absolutely. All our cylinder heads and cylinder head assembly units are covered by a standard warranty. The specific terms may vary based on the part and application, but our foundational guarantee is for 100,000 kilometers of normal use. This warranty is a core part of our commitment to quality and customer confidence.
Our network of 7,600 factories gives us incredible reach. While we stock 26,000 models, we can often source parts for less common engines through our partners. Providing the engine code, casting number, or vehicle details allows us to research availability and lead time for you.
