Premium OHC camshaft for Isuzu 6SD1 9.8L engines. Induction hardened HRC 55-62. Fits Hitachi EX300 excavators & Isuzu CXZ trucks. OEM 1-12511-249-1 Wholesale

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Quick Summary: Isuzu 6SD1 Camshaft

The Isuzu 6SD1 camshaft (OEM: 1-12511-249-1) is a high-precision OHC component for 9.8L heavy-duty engines.
It features induction hardened lobes (HRC 55-62) to prevent pitting and fits Hitachi EX300 series excavators and Isuzu CXZ/CYZ trucks.
In stock for global wholesale.

Isuzu 6SD1 Camshaft Cost-Effective Reliability for Isuzu Giga, C/E Series Trucks & Excavators

Keep your heavy-duty fleet running strong with a Ruich Value Isuzu 6SD1 Camshaft. Built from high-strength materials, this camshaft is the trusted, cost-effective solution for fleet managers, parts distributors, and repair specialists dealing with the demanding 9.8L 6SD1 engine series. Ensure reliability and performance under the heaviest loads.

Ensure a Perfect Fit: Let Our Experts Verify Your Part Number

The Isuzu 6SD1 engine has several variations. Ordering the wrong part costs you time and money. At Ruich Value, we eliminate the guesswork.

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The Ruich Value Advantage

  • Cost-Effective Durability: Our standard camshaft is made from high-quality Chilled/Ductile Cast Iron, offering the perfect balance of strength, wear resistance, and value for heavy-duty diesel applications. (Premium Forged Steel option available for extreme performance needs—please inquire).

  • Restore Engine Performance: Precision-engineered to meet or exceed OEM specifications, our camshaft ensures accurate valve timing for the OHV 12-Valve configuration, restoring power and efficiency.

  • Reduce Vehicle Downtime: Designed as a direct fit replacement, this camshaft allows for efficient, reliable engine rebuilds, minimizing workshop time and getting your high-value assets back to work.

  • Wholesale Partnership: We are a trusted wholesale supplier. Partner with us for competitive pricing, dependable stock, and expert support for your business.


Technical Specifications

Product Type OHC Engine Camshaft / Valvetrain Assembly
Engine Model Isuzu 6SD1, 6SD1-TC, 6SD1-TCS (9.8L)
OEM Reference 1-12511-249-1 / 1125112491
Alternative OE 97725927 / 1125112013 / 71456252
Material Forged Alloy Steel / Chilled Ductile Iron
Surface Hardness HRC 55-62 (Induction Hardened)
Cam Type Overhead Camshaft (OHC)
Application Hitachi EX300-2/3/5, JCB JS300LC, Isuzu Giga Trucks
Packaging Anti-Rust Treated in Heavy-Duty Export Crate

Explore Our Full Isuzu Camshaft Catalog

We supply a comprehensive range of camshafts. Ask us about parts for the following engines:

ModelModelModelModel
G161ZG180ZG200ZC240
C223C1908PE18PD1
8PC16WA16VD16SD1
6SA16RB1E1206QA1
6HK16HE16BG16BD1
6BB14ZE14ZD14ZC1
4BC24ZA14Y4HE1-T
4JB14JA110PC4HK1
4BE14HG14HF14BD1

Custom development from your technical drawings or samples is available.

Technical Q&A: Isuzu 6SD1 Camshaft

Q1: What are the common failure symptoms of an Isuzu 6SD1 camshaft?

In high-displacement 9.8L engines like the Isuzu 6SD1, camshaft failure often manifests as a rhythmic ticking or tapping noise from the top of the cylinder head. This is usually caused by lobe pitting or “spalling” due to soot abrasion in heavy-duty cycles. If left unaddressed, worn lobes reduce valve lift, leading to significant power loss, increased fuel consumption, and cylinder misfires.

Q2: Does this camshaft support both Isuzu trucks and Hitachi excavators?

Yes, the 1-12511-249-1 camshaft is a direct fit for the Isuzu 6SD1 series engines used across multiple industries. This includes the Isuzu Giga truck line (CXZ/CYZ models) and heavy-duty construction equipment such as the Hitachi EX300-2, EX300-3, and EX300-5 series excavators.

Q3: Why choose an induction-hardened forged steel camshaft for the 6SD1?

Because the 6SD1 is an OHC (Overhead Cam) engine operating under high torque (up to 1845 Nm), the camshaft lobes face intense pressure. Our forged steel camshafts undergo induction hardening to achieve a surface hardness of HRC 55-62. This creates a deep wear-resistant layer that maintains valve timing precision and prevents lobe flattening even in continuous 24/7 industrial operations.


Get Your Wholesale Quote Today

Contact Ruich Value to order your Isuzu 6SD1 Camshaft or for any technical and pricing inquiries. Be ready to confirm your engine details for fast and accurate service.

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For Any Inquiries, please feel free to contact us, Our sales teams are always glad to support your business