Genuine Daido Ndc Engine Main Bearing SH-1640A For Isuzu 4HG1 4HK1 Excavator Con Rod Bearing

Product Details

Product Overview

This listing offers a Genuine Daido Ndc Engine Main Bearing, specifically the SH-1640A part number, designed for use in Isuzu 4HG1 and 4HK1 diesel engines. As a critical component in the engine’s rotating assembly, this main bearing ensures precise crankshaft support and oil clearance for optimal performance and longevity.

Commonly utilized in excavator applications, this bearing is manufactured to OEM specifications, providing a direct replacement for worn or damaged components. The “SH-1640A” designation confirms it is a standard size main bearing, essential for maintaining proper engine alignment and reducing friction.

Key Features & Benefits

• Genuine Daido Quality: Manufactured by Daido (Ndc), a trusted Japanese brand known for high-precision engine bearings, ensuring reliable fit and performance.
• Precise Part Number: The SH-1640A part number allows for accurate identification and direct replacement without guesswork.
• Optimized for Isuzu 4HG1/4HK1: Specifically engineered for the main bearing journals of these popular Isuzu engine models, commonly found in excavators and industrial machinery.
• Long-Lasting Durability: Designed to withstand high loads and temperatures, providing extended service life and reducing downtime for your equipment.
• Reduced Friction: Advanced bearing material and surface finish minimize friction between the crankshaft and engine block, improving fuel efficiency and engine smoothness.
• Direct Fit Replacement: This is a standard size main bearing, requiring no machining or modification for installation when replacing worn bearings.

Technical Specifications

OEM Cross-Reference

This Daido Ndc bearing with part number SH-1640A is a direct OEM replacement part. While specific OEM numbers for the 4HG1 and 4HK1 engines may vary by exact application, the SH-1640A is the standard Daido reference for this size. For cross-referencing, it is commonly used in place of or alongside the following Isuzu OEM part numbers:

• Isuzu OEM: 8-97157-929-0 (Common 4HG1 Main Bearing Set Reference)
• Isuzu OEM: 8-98023-526-0 (Common 4HK1 Main Bearing Set Reference)
• Note: This single bearing (SH-1640A) is one piece of a main bearing set. Please verify your engine’s exact requirements for the number of bearings needed (typically 5 for a 4-cylinder engine).

Compatibility

This main bearing is specifically designed for the Isuzu 4HG1 and Isuzu 4HK1 diesel engines. These engines are commonly used for:

• Excavators: Various compact and mid-size models from Hitachi, Sumitomo, Kobelco, and other OEMs that utilize Isuzu engines.
• Industrial Machinery: Generators, compressors, and other heavy equipment powered by the 4HG1 or 4HK1 engine.
• Forklifts: Some heavy-duty forklift models.

Fitment Note: This is a standard size bearing. It is intended for use during a full engine rebuild where the crankshaft journals are within factory specifications. Always measure your crankshaft journals and main bearing bores to confirm correct clearance before final assembly.

Global Supply & Distribution

We offer reliable worldwide shipping for this genuine Daido Ndc bearing. Our logistics network ensures fast delivery to major industrial centers and ports across the globe.

• Major Markets Served: North America (USA, Canada, Mexico), Europe (Germany, UK, Netherlands, France), Asia-Pacific (Japan, Australia, Singapore, South Korea), Middle East (UAE, Saudi Arabia), and Africa (South Africa, Nigeria).
• Fast Delivery: Orders are processed within 24 hours of payment receipt. Express shipping options (DHL, FedEx, UPS) are available for urgent requirements.
• Export Experience: We specialize in B2B export for heavy machinery parts, ensuring proper packaging, documentation, and customs compliance for international shipments.

Quality Assurance

We stand behind the quality of our genuine parts. Each bearing is sourced directly from trusted Japanese manufacturers.

• Manufacturing Standards: Produced under strict ISO quality management systems by Daido Metal Co., Ltd., a world leader in bearing technology.
• Warranty: This product comes with a 6-month warranty against manufacturing defects.
• Testing: Genuine bearings undergo rigorous dimensional and material testing to ensure they meet OEM tolerances for hardness, crush height, and wall thickness.
• After Warranty Service: We provide video technical support to assist with installation questions or fitment verification.

FAQ

Q: Is the SH-1640A a main bearing or a con rod bearing?
A: The SH-1640A is specifically an Engine Main Bearing. It supports the crankshaft in the engine block. For connecting rod bearings (con rod bearings), a different part number would be required, typically a different SH- series number.

Q: How do I know if this is the correct bearing for my Isuzu 4HK1 engine?
A: The SH-1640A is a standard size main bearing used in many 4HG1 and 4HK1 engines. To confirm fitment, you should: 1) Check your engine’s serial number or parts manual for the specific OEM part number. 2) Visually inspect your old bearing for the SH-1640A stamp. 3) Measure your crankshaft main journal diameter. If it is within standard limits (typically ~70mm for 4HK1), this standard bearing is correct. If the journal is worn or ground undersized, a 0.25mm or 0.50mm undersize bearing will be needed.

Q: Can I install this bearing myself?
A: Installing main bearings requires mechanical skill and precision. You must: 1) Thoroughly clean the bearing bore and crankshaft journal. 2) Apply clean engine oil to the bearing surface. 3) Use a torque wrench to tighten the main bearing cap bolts to the exact specification (usually 90-110 Nm for 4HG1/4HK1, but always verify). 4) Critically, check the oil clearance using Plastigage. If you are not experienced with engine assembly, we recommend professional installation. We offer video technical support to guide you through the process.