A camshaft position sensor is a small part that causes big problems when it fails — and even bigger problems when the wrong one is ordered. For importers, distributors and repair chains, it is also a steady, repeat-purchase item: every modern engine has one, and they wear out on a predictable cycle.
This guide covers what the sensor does, the symptoms of failure, the most common ordering mistake (camshaft vs. crankshaft), and how to confirm the exact OE number before you place a bulk order.
What the camshaft position sensor does
The sensor reports the position and speed of the camshaft to the engine control unit (ECU). The ECU uses that signal to time fuel injection and ignition. If the signal is missing or wrong, the engine cannot run properly — or at all.
Symptoms of a failing camshaft position sensor
- Check engine light, most often with fault codes in the P0340–P0345 range
- Hard starting, or the engine cranks but does not start
- Stalling at low speed or at idle
- Rough idle, jerking or hesitation under acceleration
- Noticeably worse fuel economy
For workshops, these symptoms mean fast-moving replacement demand. For buyers, they mean this is a category worth stocking — but only if the OE matching is right.
The most common ordering mistake: camshaft vs. crankshaft
Many engines carry both a camshaft position sensor and a crankshaft position sensor. The two parts can look very similar, sometimes share a similar connector shape, and sit close to each other — but their OE numbers are completely different, and they are not interchangeable.
A real example from our own sourcing work: on the Lexus LS460, 90919-05071 is the camshaft position sensor, while 90919-05061 is the crankshaft position sensor. Two numbers that look almost identical, two different parts. Ordering the wrong one means returns, delays, and a customer who does not come back.
Before ordering, always confirm which of the two sensors you actually need.
How to confirm the exact OE number
- Read the number on the old part. The OE number is printed or stamped on the sensor housing. Quote that number — not just the car model.
- Cross-check with vehicle data. Model, year, engine code and VIN help confirm that the OE number belongs to the right engine variant.
- Check the connector. Pin count and connector shape must match. Ask your supplier for a clear photo of the connector before you confirm a bulk order.
- Be careful with listings that merge many OE numbers into one title. A listing that claims to fit a long list of numbers in a single title is often a copied listing, not a verified one. Ask the supplier to confirm the one exact OE you need.
Ordering checklist for bulk buyers
- Confirm the exact OE number, and whether you need the camshaft or the crankshaft sensor
- Order samples first and test them on the vehicle before a bulk order
- Confirm packaging: neutral packaging, customized packaging or your own label
- At Hengxin, camshaft position sensors start from an MOQ of 10 pcs. Samples are available; the sample fee is refunded when you place a formal order. Standard lead time is 15–25 days
Send us your OE list
If you are sourcing camshaft position sensors — or any sensor — send us your OE numbers and quantities. We match by OE number, check quality before shipment, and reply with a quotation within 24 hours.
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