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C.A.T Engine Exhaust Valve 122-0321 1220321 Heavy Equipment Spare Part

C.A.T Engine Exhaust Valve 122-0321 1220321 Heavy Equipment Spare Part

Place of Origin:

USA

Brand Name:

C.A.T

Model Number:

122-0321 1220321

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C.A.T Engine Exhaust Valve 122-0321 1220321 Heavy Equipment Spare Part
Product Details
Product Name:
Exhaust Valve
Part No.:
122-0321 1220321
Quality Standard:
Genuine Part
Compatible Equipment Models:
D9N, D9R, D10N, D10R
Payment & Shipping Terms
Minimum Order Quantity
1 piece
Price
$45 – $75
Packaging Details
Neutral Export Carton or Custom Wooden Case
Delivery Time
7-10days
Payment Terms
L/C,D/A,D/P,T/T
Supply Ability
500pcs/month
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CONTACT US
+86 19120194795
sale01@uniwaypart.com
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Product Description
C.A.T Engine Exhaust Valve 122-0321 1220321 Heavy Equipment Spare Part
Product Specifications
Part Name Exhaust Valve
Part Number 122-0321 1220321
Brand C.A.T (100% Original Guaranteed)
Place Of Origin Multiple Origins
Quality Standard Genuine Standard
Condition 100% Brand New
MOQ 1 Piece
Packaging Original CaT Sealed Packaging with Authenticity Label
COLD PLANER PM‑565,PM‑565B,PR‑1000,PR‑450C

EXCAVATOR 375,375 L

FRONT SHOVEL 5080

GEN SET ENGINE 3408,3412,3412C,3516B

GENERATOR SET 3406C,3408C,3412,3412C

INDUSTRIAL ENGINE 3406B,3406C,3408,3408C,3408E,3412,3412C,3412E

LANDFILL COMPACTOR 826C,826G,836

MARINE ENGINE 3408,3408B,3408C,3412,3412C,3412D

MINING EXCAVATOR 5110B

MOTOR GRADER 16G,16H NA,24H

PETROLEUM ENGINE 3412E

PIPELAYER 578,583R,587R,589

POWER MODULE PM3412

PUMPER SCT673,SP5342,SPT342

QUARRY TRUCK 771D,775B,775D

RECLAIMER MIXER RM‑250C

ROAD RECLAIMER RR‑250B

SOIL COMPACTOR 825G

TRACK‑TYPE TRACTOR D10N,D10R,D8L,D8N,D8R,D8R II,D9L,D9N,D9R

TRUCK 769C,769D,773B,773D,773E,775D,775E

TRUCK ENGINE 3408

UNDERGROUND ART TRUCK AD40,AE40

WHEEL DOZER 824G,834B,844

WHEEL LOADER 980C,980F,980G,988B,988F II,990,990 II,992C,992D

WHEEL SCRAPER 623F,657E

WHEEL TRACTOR 621F,627F,631D,631E,631G,633E II,637E,637G,651E,657E

Product Features
  • High-Temp Heat-Resistant Alloy & Stellite Facing for Exhaust Gas Resistance: Manufactured from high-temperature resistant alloy steel engineered to withstand intense thermal stress and exhaust gas corrosion up to 800°C. The 45° valve seat contact area features specialized hardfacing to resist thermal erosion, pitting, and blow-by gas leakage under peak engine loads.
  • Precision Micro-Finished Stem & Stress-Relieved Keeper Grooves: Features a precision micro-polished valve stem (~9.43 mm diameter, ~184.2 mm length) for ideal oil film retention and minimal wear inside the valve guide. Smoothly contoured keeper grooves minimize stress concentration, preventing stem fatigue cracking during high-RPM reciprocating operation. 
  • Optimized Exhaust Gas Flow Contour & Efficient Thermal Conductivity: Engineered with a streamlined underside valve head geometry to reduce exhaust backpressure and optimize cylinder scavenging in heavy-duty engines. The dense forged grain structure provides high thermal conductivity to draw heat away from the valve head through the valve guide and cylinder head cooling jacket. 
Part Location & Technical Information
C.A.T Excavator Swing Motor Group installation diagram showing fuel transfer pump location
Friendly Reminder: Please ensure this part number matches your machine model and serial number. We strongly recommend checking with the official parts catalog or providing your machine serial number before purchase to avoid ordering the wrong part.

C.A.T Engine Exhaust Valve 122-0321 1220321 Heavy Equipment Spare Part

C.A.T Engine Exhaust Valve 122-0321 1220321 Heavy Equipment Spare Part

Contact Information
Contact Person Sylvia (International Sales Specialist) Anna
Whatsapp/WeChat +86 19120194795 +86 13229460031
Email sale01@uniwaypart.com -
Tags：

cat digger parts

engine oil filter

caterpillar mini excavator parts

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