CAT 7X0310 BOLT for 345C Caterpillar Part - WSTPARTS

WSTPARTS supplies the 7X0310 BOLT, a CAT Bolt/Nut replacement part designed for Caterpillar 345C, 3516B and 345B applications. It is categorized under Bolt/Nut. Every unit is fitment-verified before dispatch. Manual reference: 330C: AIR INLET AND EXHAUST SYSTEM, group 193-2706, page 147; 3406C: COOLING SYSTEM, group 126-8325, page 559.

7X0310 BOLT for Caterpillar 345C — Genuine CAT & Replacement Part

WSTPARTS supplies genuine CAT and OEM-equivalent direct-replacement BOLT (Part # 7X0310). Designed for CAT 345C, 3516B, 345B, 3306, 330C, 3406C, 345D equipment.

Compatible Models

Key Features

• ✔ 100% compatible with CAT 345C, 3516B, 345B, 3306, 330C, 3406C, 345D
• ✔ Meets Caterpillar original quality and performance standards
• ✔ Genuine CAT lines: New Genuine / Cat Reman / Cat Classic | OEM-equivalent direct replacements
• ✔ Available for order, contact for lead time

Specifications

Part Number (MPN)	7X0310
Product Name	BOLT
Brand	CAT
Applicable Models	345C, 3516B, 345B, 3306, 330C, 3406C, 345D
Weight	0.05 kg
Condition	New (Genuine CAT / OEM-equivalent direct replacement)
Warranty	12 Months

Where This Part Fits

Every row below is a real listing of 7X0310 in the Caterpillar parts manual: the machine it is published under, the system it belongs to, the group number and the manual page. Use it to confirm the part against your own parts book before ordering.

Machine	System	Group No.	Manual Page
330C	AIR INLET AND EXHAUST SYSTEM	193-2706	p.147
3406C	COOLING SYSTEM	126-8325	p.559
345B	AIR INLET AND EXHAUST SYSTEM	124-1680	p.115
345C	AIR INLET AND EXHAUST SYSTEM	222-8253	p.108
3516B	ELECTRICAL AND STARTING SYSTEM	325-6250	p.659
3306	COOLING SYSTEM	133-9673	p.449
3306	COOLING SYSTEM	133-9671	p.469
3406C	COOLING SYSTEM	135-4926	p.545

System Notes — AIR INLET AND EXHAUST SYSTEM

The air inlet and exhaust system covers the air cleaner housing and elements, intake piping, turbocharger, aftercooler, exhaust manifold, turbo mounting hardware and gaskets. It delivers clean, dense air and carries hot gas away. On this group, the two dominant failures are dust ingress and heat cycling: a leaking intake joint lets unfiltered air straight into the cylinders and dusts the rings in a few hundred hours, while exhaust manifold and turbo flange gaskets crack from repeated heat cycles and start whistling or sooting. Parts are replaced when boost drops, the intake tract shows dust trails past the filter, or a soot streak appears at a joint.

System Notes — COOLING SYSTEM

The cooling system covers the radiator, water pump, thermostat, fan and fan drive, coolant hoses, clamps, the surge tank and the belts that drive it. It holds engine temperature inside the range where clearances and oil film stay correct. Failures are usually slow and then sudden: a hose softens and balloons before it bursts, a water pump seal starts weeping from the weep hole, a thermostat sticks partly open so the engine runs cold and burns more fuel. On construction sites the radiator also packs with dust and debris, which raises pressure across the core and finds the weakest hose or clamp first.

FAQ

Is 7X0310 the right part for my machine?
Match the part number on your old part, or send us your equipment serial number — WSTPARTS verifies fitment free of charge for CAT 345C.

Genuine CAT vs direct replacement — what is the difference?
Genuine CAT covers three factory lines: New Genuine, Cat Reman (core exchange with core charge) and Cat Classic (brand-new economy line). OEM-equivalent direct replacements are non-CAT parts; grade and warranty are confirmed in the quotation.

Stock, shipping and warranty?
Lead time confirmed on request; we quote the fastest available option. Every order is covered by a warranty per quotation.

📞 Get a Quote: Contact the WSTPARTS parts team | Email: cat@wstparts.com