Model: WD615 / WP10
Part Number: 612600050085
Brands: Weichai Power
Engine Model: WD615, WD615E2, WD10, WP10, WP10G
Engine Type: Diesel
Scope of application: heavy trucks, buses, construction machinery, generator sets
The camshaft turns rotating motion into the precise opening and closing of valves. On the Weichai WD615 and WP10 it is a single forged shaft driven from the front of the engine, carrying a set of intake and exhaust lobes plus the drive gear for the injection pump and the tachograph take-off. Part 612600050085 is the standard camshaft for these six-cylinder engines and determines valve timing, cylinder filling and, indirectly, exhaust temperature and fuel consumption.
A worn or bent camshaft changes the whole character of the engine. Lifters start to tick, power drops, exhaust gas temperature climbs and black smoke appears under load. Because the camshaft sits deep inside the block, replacing it is a scheduled overhaul job rather than a roadside repair, which is why choosing a correctly hardened replacement matters.
The camshaft fits naturally aspirated and turbocharged versions of the WD615 and the WP10 series. Typical installations include HOWO and Shacman tractors, dump trucks and mixers, city buses with WD615.47 engines, and industrial units such as wheel loaders and 80 to 250 kVA generator sets built on the WD10 and WP10 platforms.
Because the same shaft profile carries several engine ratings, the correct identification is the engine nameplate plus the part number stamped on the old shaft. If the old camshaft number differs, send us a photo; there are early and late variants with different fuel pump drive arrangements.
Our camshafts are forged from alloy steel, rough machined, heat treated and then ground to the original lobe profile. Key production controls are:
Each shaft is oiled and wrapped before packing. The gear teeth for the injection pump drive are inspected individually, because a chipped tooth will destroy the pump timing within minutes of start-up.
Camshaft wear is usually progressive. Watch for:
When a lobe is worn flat the valve simply stops opening fully. At that point the engine will misfire, unburnt fuel will wash the cylinder bore, and the repair cost grows quickly.
Do not let a fresh camshaft idle for long periods during the first run. Low oil splash at idle is the main cause of lobe scuffing on a new shaft.
612600050085 is frequently ordered together with lifters, camshaft bearings and the front crank seal. Ordering them as a set avoids a second freight charge and guarantees that the wear surfaces are matched. If your engine has been rebuilt with a later WP10 block, confirm the shaft part number, because the pump drive gear changed on some production batches.
For fleets, keeping one camshaft in stock is worthwhile: it is a light part that rarely moves in the warehouse but can stop a truck for a week when it fails.
Camshaft life depends mostly on oil quality and valve clearance. Use the specified oil grade, change it at the intervals recommended for dusty or high-load duty, and check valve clearance at every major service. A slightly loose tappet is noisy; a tight one burns a valve and pounds the lobe.
No. Used lifters have a matched wear pattern and will scuff a new lobe within hours. Always fit a new lifter set.
Yes. Any camshaft replacement requires the pump timing to be verified with a dial gauge or timing pin after assembly.
The shaft is supplied with its drive gear fitted. Tell us if you need a bare shaft.
Measure valve lift with a dial gauge. If lift is below specification the lobe is worn, not just the clearance.
Browse the Weichai camshaft category, and pair the shaft with a WD618 engine overhaul repair kit 612600900080 or the WP10.E3 piston kit 612600900079.
Weichai WD615 Camshaft (612600050085). Valve events and, where fitted, pump timing are set by this shaft. Its journals also carry the oil feed to the top end, so wear here can starve the valve train.
Compare the injection pump drive gear teeth and the lobe profile with the old shaft. Two camshafts can share journals and length and still differ in both, which changes timing and fuelling.
Numbers beginning 6126 belong to the generation shared with the WD618 and early WP12 engines. Parts in this block were revised several times, so the casting or housing is the reliable identifier rather than the number alone. On this engine, confirm the WD615 application against the engine plate before ordering.
Run the break-in procedure rather than idling: bring the engine to the specified speed promptly and hold it. Idle gives the least oil flow to the camshaft at the exact moment the surfaces are bedding in.
Ordering note. Packing is export grade: each unit is wrapped, boxed and palletised for sea freight, with the part number marked on the outside so the receiving store can book it in without opening the carton.
Related reading: Camshaft and Lifter Wear: Diagnosis and Replacement
| We Are 30 Years Diesel Engine Parts Supplier | |
| Brand | EPID |
| Warranty | 12 Months |
| Condition | 100%New |
| More Models | Weichai: WD615, WD615E2, WD10, WP10, WP10G, and other Weichai series. |
| Shipping | By sea / air / express (DHL, FEDEX, TNT, UPS, EMS) |
| Packing | Standard exporting packing or as required |
| Payment Term | L/C, T/T, Western Union, Trade Assurance |
| Delivery Time | 3-7 days (depend on order) |
| Selling Point | 1. On-time Delivery 2. Genuine Quality Assurance 3. Professional Supplier |
Our camshafts are forged from alloy steel, rough machined, heat treated and then ground to the original lobe profile. Key production controls are:
Each shaft is oiled and wrapped before packing. The gear teeth for the injection pump drive are inspected individually, because a chipped tooth will destroy the pump timing within minutes of start-up.
Camshaft wear is usually progressive. Watch for:
When a lobe is worn flat the valve simply stops opening fully. At that point the engine will misfire, unburnt fuel will wash the cylinder bore, and the repair cost grows quickly.
Do not let a fresh camshaft idle for long periods during the first run. Low oil splash at idle is the main cause of lobe scuffing on a new shaft.
612600050085 is frequently ordered together with lifters, camshaft bearings and the front crank seal. Ordering them as a set avoids a second freight charge and guarantees that the wear surfaces are matched. If your engine has been rebuilt with a later WP10 block, confirm the shaft part number, because the pump drive gear changed on some production batches.
For fleets, keeping one camshaft in stock is worthwhile: it is a light part that rarely moves in the warehouse but can stop a truck for a week when it fails.
Camshaft life depends mostly on oil quality and valve clearance. Use the specified oil grade, change it at the intervals recommended for dusty or high-load duty, and check valve clearance at every major service. A slightly loose tappet is noisy; a tight one burns a valve and pounds the lobe.
Browse the Weichai camshaft category, and pair the shaft with a WD618 engine overhaul repair kit 612600900080 or the WP10.E3 piston kit 612600900079.
No. Used lifters have a matched wear pattern and will scuff a new lobe within hours. Always fit a new lifter set.
Yes. Any camshaft replacement requires the pump timing to be verified with a dial gauge or timing pin after assembly.
The shaft is supplied with its drive gear fitted. Tell us if you need a bare shaft.
Measure valve lift with a dial gauge. If lift is below specification the lobe is worn, not just the clearance.
EPID supplies diesel engine parts for Weichai, Baudouin, Yuchai, Caterpillar, Sinotruk, FAW Xichai and Cummins engines. Every order is checked against the original part number before packing, and our team can identify a part from a photo of the engine plate. Ask for a quotation with your model and quantity and we will reply within one working day.
