Durable 3LD1 Cylinder Head

The 3LD1 cylinder head is a premier choice for the repair, refurbishment, and reconditioning of Hitachi EX30/EX35 and Komatsu PC30/PC35 mini-excavators. It is widely compatible with light-to-medium-duty applications such as municipal upgrades, residential landscaping, indoor demolition, agricultural water conservancy, and small-scale infrastructure projects. If your equipment suffers from issues like high coolant temperatures, cylinder block leakage, power loss, cylinder head cracking, or valve wear, installing Hebei Keluo’s 8-97163-401-0/8-97163-401-4 cylinder head restores stable operating conditions in one go, minimizing downtime losses caused by repeated repairs.

Cylinder heads operate under harsh conditions involving high temperatures, high pressures, and constant vibration; inferior aftermarket parts are prone to cracking, leakage (coolant or oil), carbon buildup in air passages, and surface deformation. Hebei Keluo’s 3LD1 cylinder head undergoes strict quality control throughout the entire process—from raw materials to precision finishing—effectively resolving common failure points in mini-excavators.

Hebei Keluo’s cylinder heads are cast as a single unit using high-strength, wear-resistant gray iron. The internal casting structure is dense and free from defects such as sand holes, air pockets, or porosity. With superior resistance to high-temperature deformation and vibration-induced cracking, they are ideal for prolonged, continuous operation on job sites, preventing cracks and cross-contamination of oil and coolant caused by thermal cycling. Critical surfaces—including the sealing face, valve seat bores, and valve guide bores—are machined using high-precision CNC milling and grinding to ensure minimal flatness error; this guarantees a tight seal with the head gasket, completely eliminating water, oil, and air leaks. Internal cooling and lubrication channels are smooth and burr-free, enhancing heat dissipation efficiency and effectively regulating engine temperature to prevent high-temperature cylinder scoring and power loss.

With years of deep industry experience and expertise in mold development and precision machining, the company exports its products to over twenty countries and regions, including Southeast Asia, the Middle East, Europe, and the Americas. Our client base includes construction machinery repair chains, parts wholesalers, and equipment refurbishment facilities. We adhere to the principle of manufacturing replacement parts to OEM standards, offering a one-stop service that includes in-stock individual items, batch customization, technical consultation, and comprehensive overhaul kits, thereby solving procurement challenges for powertrain components across the full spectrum of small, medium, and large construction machinery.

Hebei Keluo Construction Machinery centers its competitiveness on reliable quality, consistent delivery schedules, and excellent service, continuously providing cost-effective core engine components to construction machinery professionals worldwide; we welcome inquiries regarding samples, bulk orders, and customization partnerships.