1004 Jcb3cx Valve Seat 3314a011 3314a121 for Perkins Engine Parts

Product Details

Product Overview

This high-precision valve seat, identified by OEM numbers 3314a011 and 3314a121, is engineered specifically for the Perkins 1004 Series diesel engine. As a critical component in the cylinder head assembly, this valve seat ensures proper sealing and heat dissipation for intake and exhaust valves.

Commonly utilized in heavy-duty applications including the JCB 3CX backhoe loader, this part is also suitable for a wide range of construction, agricultural, industrial, and generator set equipment powered by Perkins 1004 engines. Manufactured to OEM size specifications, it offers a direct replacement solution for engine rebuilds and overhauls.

Key Features & Benefits

• Precision Engineering: Machined to exact OEM dimensions (3314a011 / 3314a121) for a perfect interference fit in the cylinder head, eliminating the need for modification.
• Durable Material Composition: Constructed from wear-resistant alloy steel to withstand high combustion temperatures and repeated valve impact, extending service life.
• Enhanced Valve Seal: Provides a gas-tight seal between the valve and seat, optimizing compression, reducing blow-by, and improving engine efficiency.
• Heat Dissipation: Designed to efficiently transfer heat away from the valve head into the cylinder head water jacket, preventing valve burning and warping.
• Direct Replacement: Sold as a single unit, this valve seat matches the original Perkins specifications, ensuring compatibility with standard valve guides and valves in the 1004 series.
• Rigorous Testing: Each batch undergoes outgoing inspection and machinery test reporting to verify dimensional accuracy and material integrity.

Technical Specifications

OEM Cross-Reference

This valve seat replaces the following original equipment manufacturer part numbers:

• Perkins: 3314a011, 3314a121
• JCB: 3314a011, 3314a121 (used in 3CX and other models)

Note: Always verify your engine’s specific part number before ordering. This cross-reference is provided for identification purposes only.

Compatibility

This valve seat is commonly used for the following engine and equipment applications:

• Engine Models: Perkins 1004-4, 1004-40, 1004-42, 1004.4T, 1004.40T
• Vehicle/Equipment Applications:
  • JCB 3CX, 3CX Eco, 4CX Backhoe Loaders
  • JCB 214, 215, 217, 220 Skid Steer Loaders
  • Massey Ferguson Tractors (with Perkins 1004 engines)
  • Industrial generators, pumps, and compressors

Fitment Note: While primarily designed for the JCB 3CX and Perkins 1004 engines, this part may also fit other equipment using the same engine series. Please confirm your cylinder head casting number and valve diameter before purchase.

Global Supply & Distribution

We offer worldwide shipping solutions for B2B buyers, including express courier (DHL, FedEx, UPS), air freight, and sea freight. Our strategic location in Guangdong, China, provides fast transit times to major international ports and industrial hubs.

• Major Markets Served: North America (USA, Canada, Mexico), Europe (UK, Germany, France, Netherlands), Asia-Pacific (Australia, Japan, Singapore), Middle East (UAE, Saudi Arabia), and Africa (South Africa, Nigeria).
• Logistics: Typical delivery to major ports (Los Angeles, Rotterdam, Dubai) within 7-15 days via air freight, or 25-35 days via sea freight for bulk orders.
• Trade Compliance: We export globally with proper commercial invoices and customs documentation, ensuring smooth clearance for international buyers.

Quality Assurance

• Manufacturing Standards: Produced in ISO-compliant facilities in Guangdong, China, using precision CNC machining and heat treatment processes.
• Testing: Each production batch is subject to outgoing inspection and machinery test reports, which are available upon request. Dimensional checks are performed using calibrated gauges to ensure OEM fitment.
• Warranty: Backed by a 6-month defects liability period against material and workmanship defects under normal operating conditions.
• Packaging: Securely packed in plastic bags, then boxed and cartoned to prevent damage during transit.

FAQ

Q1: Is this valve seat a direct replacement for the original Perkins part?
A: Yes. This valve seat is manufactured to match the OEM specifications of Perkins part numbers 3314a011 and 3314a121. It is a direct replacement part designed to fit the cylinder head of Perkins 1004 series engines without any additional machining, provided the cylinder head is in good condition and the valve guide is within specification.

Q2: How do I properly install a valve seat in a Perkins 1004 cylinder head?
A: Installation requires a qualified mechanic. The process typically involves: (1) Cleaning the cylinder head and valve seat counterbore. (2) Heating the cylinder head to approximately 150-200°C (302-392°F) to expand the bore. (3) Cooling the valve seat (optional, in dry ice). (4) Pressing the seat into the bore using a suitable driver tool. (5) Allowing the head to cool and then cutting/grinding the seat to the correct angle (typically 45° intake / 30° exhaust for Perkins 1004). A leak test after installation is highly recommended.

Q3: What is the typical lifespan of this valve seat, and when should it be replaced?
A: Lifespan depends on operating conditions, fuel quality, and maintenance. Under normal conditions, valve seats can last 4,000-8,000 hours. Replacement is typically required during a top-end overhaul or when you notice symptoms like loss of compression, hard starting, excessive valve lash, or visible pitting/cracking on the seat surface during inspection. Always replace valve seats when replacing valves or reconditioning the cylinder head.