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Part Number
4P8304
CHECK NPR
Category: —
List Price
$877.28
Stock Status Available (Contact for Inquiry)
Fits Equipment Models (1)

CAT 4P8304 CHECK NPR fits Caterpillar G3508. Available for order at WSTPARTS.

Replaceable OEM Parts (Compatible Models)
No OEM replacement record. Contact us
135-3086-8288
WeChat: 135-3002-9789 / 135-3086-8288
Business days 8:00–18:00
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CAT 4P8304 CHECK NPR Caterpillar Part - WSTPARTS

4P8304 CHECK NPR — Genuine & OEM Replacement Part

WSTPARTS supplies genuine and high-quality OEM replacement CHECK NPR (Part # 4P8304). Designed for CAT Caterpillar equipment.

Key Features

  • ✔ 100% compatible with CAT matching models
  • ✔ 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)4P8304
Product NameCHECK NPR
BrandCAT
Weight7.8 kg
ConditionNew (Genuine / OEM Equivalent)
Warranty12 Months

Where This Part Fits

Every row below is a real listing of 4P8304 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
G3508 ENGINE ARRANGEMENT 133-3693 p.35
G3508 ENGINE ARRANGEMENT 105-4174 p.41

System Notes — ENGINE ARRANGEMENT

The engine arrangement group covers the parts that mount and dress the engine as an assembly rather than the engine internals: engine mounts and isolators, belts and tensioners, pulleys, guards, brackets, and the plumbing that connects the engine to the rest of the machine. It is the interface layer, so its failures usually show up as vibration, belt squeal or a component that will not stay aligned. Worn isolators transmit vibration into the frame and fatigue nearby brackets; a tired tensioner lets the belt slip and takes the alternator or water pump with it. Parts are replaced when vibration at idle becomes noticeable or a belt starts tracking off its pulley.

FAQ

Is 4P8304 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.

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

Frequently Asked Questions
What equipment does 4P8304 fit?
CAT 4P8304 CHECK NPR fits 1 Caterpillar equipment model including G3508, verified against Caterpillar parts manuals and confirmed orders.
Where is 4P8304 listed in the Caterpillar parts manual?
4P8304 is listed in the Caterpillar parts manual under G3508, ENGINE ARRANGEMENT, group 133-3693, page 35.
How can I order 4P8304?
Add 4P8304 to the inquiry cart, or send us your machine model and serial number — we verify the part number before dispatch.

Parts Diagram

100%
G3508 · ENGINE ARRANGEMENT · 133-3693 CAT parts diagram
Scroll to zoom · Drag to pan
Sel 0
14P-8882AFTERCOOLER GP-TREATED WATER
29Y-5313ARRESTOR GP-FLAME
37N-8711BALANCER GP
44P-8312BREATHER GP
54W-5947BYPASS GP-EXHAUST
64P-8320CAMSHAFT GP S/N 9TG1-14
72W-1469CARBURETOR GP
87W-6372CONNECTION GP-WATER
94P-6940CONTROL GP-CARBURETOR S/N 9TG23-UP
104P-8885CONTROL GP-ELECTRONIC S/N 9TG1-14
114P-8888CONTROL GP-ENGINE ELECTRONIC S/N 9TG15-UP
124W-5893COOLER GP-ENGINE OIL
134P-8325COVER GP-CYLINDER BLOCK
144P-8309COVER GP-FLYWHEEL HOUSING
154P-8304COVER GP-FRONT HOUSING
164P-8310COVER GP-VALVE MECHANISM
177N-8707CRANKSHAFT GP
184P-8319CYLINDER BLOCK GP S/N 9TG1-26
194P-6569CYLINDER HEAD GP
208N-7182DAMPER GP
211W-9553DRIVE GP-ACCESSORY
227N-4871DRIVE GP-ACCESSORY
237N-1875FILLER GP-ENGINE OIL
244W-6874FILTER GP-ENGINE OIL
252W-8772FLYWHEEL GP
267C-6366GAUGE GP-OIL LEVEL (DIPSTICK)
278N-5620GEAR GP-FRONT S/N 9TG1-55
284P-8323GEAR GP-REAR S/N 9TG1-26
291W-8887GOVERNOR GP
304P-8307HOUSING GP-FLYWHEEL
317W-3724HOUSING GP-FRONT
324P-8192IGNITION GP-GAS ENGINE
334W-5450LIFTING GP-ENGINE
344P-8330LINES GP-AIR S/N 9TG23-UP
359Y-0779LINES GP-AIR
369Y-1221LINES GP-AIR
372W-1461LINES GP-AUXILIARY S/N 9TG1-85
Quality Guarantee
Warranty Period 12 months / under normal use
After-sales Response Response within 24h, solution within 48h
Return Policy Return or exchange within 7 days of receipt (original packaging required)
Quality Inspection 100% inspected before shipment; inspection report on request
Technical Support Free installation guidance; engineer support online
📦 Packaging
Packing Method Genuine or neutral packaging available
Protective Packing Shock-proof & moisture-proof materials
Part Number Label Individual part number label
Customization Custom carton marking supported
After-Sales Service Process
01
Contact Us
Describe issue / send photos
02
Engineer Review
Solution within 24h
03
Confirm Solution
Return, repair or replacement
04
Case Closed
Send-back / re-ship / refund
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