SCREW CYL HEAD C 8970776380 Suitable for 700P models fitted with 4HF1 4HG1 4HK1 engines

SCREW CYL HEAD C 8970776380 Suitable for 700P models fitted with 4HF1 4HG1 4HK1 engines

Product Item : 8970776380
Category： Isuzu Genuine Parts
Compatibility:4HF1 4HG1 4HK1
Part name:SCREW CYL HEAD(C)
Packing type: Isuzu original packing
Delivery time: 5-8 working days
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CATEGORY	SPECIFICATION
Part name	SCREW CYL HEAD(C)
Part number	8970776380
Brand	Isuzu Select Parts
Model	700P
Engine model	4HF1 4HG1 4HK1
Packing quantity	1 pcs
Material	Grade 12.9 high-strength alloy steel
Weight	About 0.15kg
size	M14 × 115 mm
Package	Original ISP packing
Delivery time	5-8 working days
Payment Terms	T/T, Western Union, Paypal

Design Philosophy

High-strength alloy steel cylinder head bolt (Grade 12.9, M14×115mm) cold-forged and heat-treated to maintain continuous structural clamping force under extreme engine compression. Black oxide coating ensures corrosion resistance and reliable sealing in Isuzu commercial diesel engines.

How It Works

Threaded into the engine block through the cylinder head, this bolt clamps the head and gasket against the block. When tightened to specified torque and angle, it stretches elastically to generate clamping force that seals combustion pressure, coolant, and oil passages.

Problems It Solves

Fixes cylinder gasket blowouts, coolant leaks, and compression loss caused by stretched, corroded, or reused head bolts. New bolts restore proper clamping force and ensure reliable combustion sealing in 700P / NQR71 / NQR75 / NQR90 / NPR75 trucks.