SEO Product Title

J 903940 Cylinder Head Bolt – Hex Flange M12 x 1.75 x 180mm For CASE 580 E, Super E, K & Super K Cylinder Head & Valve Mechanism Bolt for 4T-390 / 4-390 Diesel Engine

SEO Product Description 

ENGLISH DESCRIPTION

The J 903940 Cylinder Head Bolt (180mm) is a heavy-duty Hex Flange Bolt M12 x 1.75 x 180mm designed for securing the cylinder head and valve mechanism on CASE backhoes powered by 4T-390 and 4-390 diesel engines. Built with high-strength materials and precision threading, this bolt ensures stable clamping force, proper sealing, and long-term engine durability.

Fully compatible with CASE 580 E, Super E, K, and Super K, this head bolt is essential during cylinder head installation, valve mechanism service, and complete engine overhauls.

+P Key Features:

• Hex Flange Bolt M12 x 1.75 x 180mm

• Designed for cylinder head & valve mechanism

• Suitable for 4T-390 / 4-390 diesel engines

• High thread accuracy for secure, even clamping

• Resists vibration, torque, heat & pressure

• Maintains cylinder head sealing & combustion compression

• Direct replacement for CASE original head bolt

• Ideal for engine rebuilds, gasket replacement & valve servicing

A reliable and essential component for maintaining engine performance, sealing integrity, and long service life.

MALAY DESCRIPTION (Bahasa Melayu)

J 903940 Cylinder Head Bolt (180mm) ialah bolt flange hex M12 x 1.75 x 180mm yang direka untuk mengikat cylinder head dan valve mechanism pada enjin 4T-390 dan 4-390. Dengan kekuatan tinggi dan thread yang tepat, bolt ini memastikan cengkaman kukuh serta sealing yang stabil.

Serasi untuk CASE 580 E, Super E, K dan Super K.

+P Ciri-Ciri Utama:

• Flange Bolt M12 x 1.75 x 180mm

• Untuk pemasangan cylinder head & valve mechanism

• Sesuai untuk enjin 4T-390 / 4-390

• Thread tepat, kuat dan tidak mudah longgar

• Tahan haba, tekanan dan getaran enjin

• Menjaga sealing cylinder head & compression enjin

• Pengganti terus untuk bolt original CASE

• Sesuai untuk overhaul, tukar gasket & servis valve

Pilihan terbaik untuk memastikan enjin berjalan stabil, kuat dan tahan lama.

CHINESE DESCRIPTION (中文)

J 903940 气缸盖螺栓（180mm） 为 CASE 4T-390 / 4-390 柴油发动机设计，规格为 M12 x 1.75 x 180mm 六角法兰螺栓，专用于固定 气缸盖及气门机构（Valve Mechanism）。螺纹精密、夹紧力强，确保密封良好、压缩稳定，并提升发动机整体寿命。

适用于 CASE 580 E、Super E、K、Super K。

+P 产品特点：

• 六角法兰螺栓 M12 x 1.75 x 180mm

• 专用于 气缸盖与气门机构固定

• 匹配 4T-390 / 4-390 柴油引擎

• 高精度螺纹，夹紧力均匀稳定

• 耐高温、抗震动、耐压力

• 保证气缸盖密封性与压缩比

• 可直接替换 CASE 原厂螺栓

• 适用于大修、换垫片、气门系统维修

这是确保 引擎密封性、动力稳定与长久耐用 的关键部件。