Shell Bearing For ISUZU 700P NPR FVR34 4HK1 6HK1 Engine Repair 8971126380 8971126381 8973569390 8973861890 1876184140 8973861890

Tri-metal crankshaft journal liners and connecting rod bearing pairs engineered for high-boost Isuzu 4HK1 and 6HK1 heavy-duty freight powerplants.

In direct-injection 4HK1 and 6HK1 motors, sustained torque output requires flawless hydrodynamic lubrication across all crankshaft main journals and rod pins. When installing shells under part numbers 8-97112638-0 or 8-97386189-0, micrometer checks must confirm that the bearing saddle housing bore maintains zero ovality. Oil supply holes in the upper shell half must index perfectly with the cylinder block galleries to avoid localized starvation.

Ensure the stamped locking lip locates fully into the cap slot to lock crush height and prevent shell spinning at elevated operating temperatures. Inspect oil film thickness across the full crank throw using plastigauge strips before final angle-torque sequence. Never buff or dress the soft tin-lead overlay layer, and generously coat journal contact surfaces with high-tack engine assembly lube prior to initial pressure build.

• Strict Journal Tolerance Verification: Shell wall thickness is gauged to micron-level factory standards, preventing dangerous oil pressure drop at low idling RPM.
• Full Internal Engine Ecosystem: We inventory matching 4HK1/6HK1 forged crankshafts, piston kits, thrust washers, and bare blocks for coordinated overhaul sourcing.
• Direct Industrial Base Origin: Dispatched from our central Chongqing depot situated in China's commercial vehicle manufacturing corridor, ensuring direct parts traceability.
• Vapor-Corrosion Packaging: Every shell pair is preserved in VCI protective grease wraps and vacuum-sealed packaging to safeguard polished faces during overseas ocean transit.

Source complementary 4HK1 and 6HK1 major engine rebuild units for consolidated sea freight delivery:

Complete Engine Unit

Overhaul Long Block

Specializing in commercial Isuzu fleet supply out of Chongqing since 1997. Provide your engine serial plate, crankshaft journal grade, or OEM shell code to our engineering desk for rapid dimension cross-matching and FOB/CIF freight quotations.

Warehouse Hub: Baishiyi Automotive Industrial Zone, High-tech District, Chongqing, China Direct WhatsApp / Mobile: +86 17383152089 Commercial Inquiries: ZCMisuzu@guanglian99.com