CAT 7N9554 CHECK NPR for 3306 Caterpillar Part - WSTPARTS

The 7N9554 CHECK NPR is a genuine and high-quality OEM replacement part compatible with Caterpillar 3306 equipment. It is categorized under Fuel System. Every unit is fitment-verified before dispatch. Manual reference: 3306: FUEL SYSTEM, group 033-5879, page 810.

7N9554 CHECK NPR for Caterpillar 3306 — Genuine & OEM Replacement Part

WSTPARTS supplies genuine and high-quality OEM replacement CHECK NPR (Part # 7N9554). Designed for CAT 3306 equipment.

Compatible Models

Key Features

• ✔ 100% compatible with CAT 3306
• ✔ Meets Caterpillar original quality and performance standards
• ✔ Genuine CAT parts with anti-counterfeit label | OEM alternatives with warranty
• ✔ Available for order, contact for lead time

Specifications

Part Number (MPN)	7N9554
Product Name	CHECK NPR
Brand	CAT
Applicable Models	3306
Weight	0.05 kg
Condition	New (Genuine / OEM Equivalent)
Warranty	12 Months

Where This Part Fits

Every row below is a real listing of 7N9554 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	033-5879	p.810
3306	FUEL SYSTEM	033-5879	p.812
3306	FUEL SYSTEM	033-5879	p.814
3306	FUEL SYSTEM	033-5879	p.818
3306	FUEL SYSTEM	033-5879	p.820
3306	FUEL SYSTEM	033-5879	p.822
3306	FUEL SYSTEM	033-5879	p.826
3306	FUEL SYSTEM	033-5879	p.829

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.

FAQ

Is 7N9554 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 vs OEM replacement — what is the difference?
Genuine CAT parts carry an anti-counterfeit label. OEM equivalents are built to the same specifications, bench-tested and supplied with full warranty at a better price.

Stock, shipping and warranty?
Lead time confirmed on request; we quote the fastest available option. Every order is covered by a 12-month warranty.

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