CAT 1503730 GASKET for 3306 Caterpillar Part - WSTPARTS

1503730 GASKET is a Drivetrain component engineered for Caterpillar 3306 machines, built to match original factory specifications. It is categorized under Drivetrain. Every unit is fitment-verified before dispatch. Manual reference: 3306: FUEL SYSTEM, group 131-5455, page 673; 3306: FUEL SYSTEM, group 150-3730, page 678.

1503730 GASKET for Caterpillar 3306 — Genuine CAT & Replacement Part

WSTPARTS supplies genuine CAT and OEM-equivalent direct-replacement GASKET (Part # 1503730). Designed for CAT 3306 equipment.

Compatible Models

Key Features

• ✔ 100% compatible with CAT 3306
• ✔ 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)	1503730
Product Name	GASKET
Brand	CAT
Applicable Models	3306
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 1503730 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
3306	FUEL SYSTEM	131-5455	p.673
3306	FUEL SYSTEM	150-3730	p.678
3306	FUEL SYSTEM	150-3730	p.690
3306	FUEL SYSTEM	150-3730	p.894
3306	FUEL SYSTEM	031-0216	p.695
3306	SERVICE EQUIPMENT AND SUPPLIES	114-2687	p.1899
3306	SERVICE EQUIPMENT AND SUPPLIES	114-2687	p.1901

System Notes — FUEL SYSTEM

The fuel system covers the injection pump, injectors, fuel transfer pump, filters and water separator, lines and the tank. It meters and atomises diesel at the precise moment and quantity the engine needs. Modern CAT engines run very tight injector tolerances, so the group is sensitive to water and dirt: a worn injector dribbles instead of atomising, causing rough idle, white smoke and diluted oil, while a clogged filter starves the pump under load. Parts here are replaced when the engine misfires, smokes, loses power under load, or when the water separator keeps tripping — always after the fuel quality itself has been ruled out.

System Notes — SERVICE EQUIPMENT AND SUPPLIES

This group covers the equipment and consumables used to service the machine rather than to run it: filter wrenches and service tools, drain and fill hardware, grease fittings and couplers, sight gauges, sampling valves, and the small hardware that makes routine maintenance possible without improvising. Items here are replaced when they no longer seal, no longer hold a setting, or when a stripped fitting turns a ten-minute service job into a two-hour one. Keeping the correct part number on hand matters more than the unit price, because a missing grease coupler usually means a missed lube point.

FAQ

Is 1503730 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 3306.

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