Installation Position 

The speed sensor is installed on the engine flywheel housing。Documentation for the 4HK1 6HK1 places it on top of the flywheel housing, while the 4HK-1 manual specifies the left rear corner of the engine. The sensor tip reads the notched flywheel periphery as it rotates, generating the AC pulse train that the ECM uses to calculate engine speed and crankshaft angle. The sensor is also cross-referenced as a cam/crank position sensor in some catalogues, reflecting shared magnetic-pulse sensing architecture across Isuzu, Hino, and Mitsubishi applications (cross-reference: 89411-E0050, MC885578, 029600-0570）

Error Code Analysis

The ECM monitors the CKP signal for circuit continuity, signal presence, and correlation with the camshaft position (CMP) sensor.

• P0335 CKP Sensor Circuit ECM commands starter and engine cranks > 4 seconds without a CKP pulse; or engine running but pulse count outside expected window (e.g., < 51 or > 65 pulses per revolution in some calibrations)
• P0336 CKP Sensor Performance / Range Signal present but pulse count or pattern incorrect; ECM detects the CKP reads the “wrong number of ribs per revolution”
• P0016 CKP–CMP Correlation CKP and CMP signals do not align correctly—can indicate a CKP signal that is present but mechanically or electrically biased, or a jumped timing chain
• P0340 / P0341 CMP Sensor Circuit / Performance Listed as companion codes; the CMP signal substitutes for the CKP signal if CKP is lost on running engines, and vice versa, so CMP codes can appear secondary to a CKP fault

Why Choose Us

Xiamen Sincerity Machinery Co., Ltd. is CASE authorized dealer in China, we specialize in full range of genuine Case Sumitomo and Linkbelt Excavator parts, products main include monitor, controller, pressure sensor, wiring harness, hydraulic pump, hydraulic swing motor, hydraulic travel motor, final drive, gearbox reduction, hydraulic repair kits, engine injector, engine turbocharger, engine gasket kit, engine liner kit, engine water pump, engine oil pump, engine overhaul gasket set, etc. which fit to SUMITOMO excavators, CNH excavators, Link-belt excavators.

Over the years, we have actively participated in China’s premier construction machinery exhibitions. These shows serve as vital platforms where we connect with the global engineering community, showcase our premium excavator parts, and stay ahead of market trends. Our consistent presence at these exhibitions has been instrumental in expanding our footprint across high-growth markets. Today, we proudly serve customers in South America, North America, the Middle East, and Russia—regions where our full range of parts and responsive service have earned growing trust and repeat business Whether you are a new contact exploring collaboration or an existing partner seeking continued support, we welcome the opportunity to meet face-to-face at our next show. Let’s build a stronger future together—one project, one part, one partnership at a time.

Customer Overviews

XCM-PARTS company work at excavator after-sales market over 20 years, customer satisfaction is the foundation of our business. We are dedicated to delivering high-quality products, professional support, and timely service that meet and exceed customer expectations. We actively listen to customer feedback, respond quickly to their needs, and continuously improve our products and processes. By building trust and creating lasting value, we strive to establish long-term partnerships with every customer.

FAQ

Does it genuine parts?

Yes, It is genuine Sumitomo sensor.

What brand of Excavator fit to?

It fit to Case Sumitomo and Link-belt excavator.

How can I order it?

I will send invoice with payment information via email.

How do payment?

We accept to T/T, PayPal, Credit Card, Western Union transfer.

What's the delivery time?

Stock products estimated 3-7 days.

Do you have photo for the products?

Yes, we will send you photo before shipping.

Can you offer warranty for your products?

Yes, we offer 1-3 months warranty.

Can i have a sample?

Yes, we offer sample for bulk order.