Model: WP9
Part Number: 1002606464
Brands: Weichai Power
Engine Model: WP9, WP9H, WP9G
Engine Type: Diesel
Scope of application: heavy trucks, buses, construction machinery, generator sets
The camshaft is the part that remembers the engine's breathing strategy. Its lobes open the intake and exhaust valves at fixed points, and the profile sets lift and duration. On the Weichai WP9, part 1002606464 is the camshaft used across the 9-litre family, carrying the drive gear for the injection pump on mechanical versions and the auxiliary drive take-off.
When a lobe wears flat, the valve stops opening fully. Airflow drops, exhaust temperature climbs and power falls away gradually. Drivers usually report it as a general loss of pulling power, and workshops often chase injectors or the turbo before removing the valve cover.
The shaft fits WP9, WP9H and WP9G engines in heavy trucks, buses, loaders, excavators and generator sets. These engines often run at sustained load, which makes valve train wear more significant than on a delivery vehicle. Confirm the engine plate and the old camshaft number, because the pump drive gear and rear end differ between production batches.
Shafts are forged from alloy steel, heat treated, induction hardened on lobes and journals, then ground to the original profile. The checks that decide durability are done on every unit:
Shafts ship oiled and sleeved in a rigid tube, with bearings and thrust plate available pre-fitted on request.
Camshaft wear is gradual and easy to misdiagnose. The classic signs are a rhythmic tapping from the valve cover that is louder when cold, exhaust port temperatures that differ between cylinders, and power loss that cannot be traced to fuel or boost.
Measure lift before replacing parts. Adjusting clearance cannot recover a flattened lobe, and continuing to run wears the lifter into the lobe until it fails completely.
Fit the camshaft with a complete new lifter set, new bearings and a thrust plate. Used lifters carry a wear pattern matched to the old lobes and will scuff a new shaft within minutes. Check the cam bores in the block for scoring and ovality before assembly.
Match the part number, the engine rating and whether the engine is mechanically or electronically controlled. A shaft from a different rating can fit but changes valve timing and emissions, and the pump drive may not align. Check the number stamped on the existing shaft if the engine has been rebuilt before.
The camshaft is one link in a gear train. A worn crank gear or slack idler changes valve timing and hammers the lobes, so a rebuilt engine should have the whole train inspected. Measure gear backlash and look for a polished or stepped tooth pattern. Replacing a camshaft while leaving worn gears in place is a reliable way to lose the new part.
Camshafts are long and slender and bend easily in transit. They ship in rigid tubes with journals protected, braced inside the carton so the tube cannot flex. If the shaft travels with heavy parts in a container, tell us so we can place it where nothing rests on it.
Oil quality and valve clearance decide camshaft life. Use the specified grade, change it at the severe-duty interval and check clearance at every major service. Keep the breather clean so oil mist does not carry abrasive dust into the valve chamber, and replace worn timing gears before they hammer the lobes.
Yes. Used lifters are matched to the old lobes and will destroy a new camshaft quickly.
On mechanical engines yes. Verify with a dial gauge after fitting.
The shaft comes with its gear fitted. A bare shaft is available on request.
Partially, by measuring valve lift at the rockers with a dial gauge.
See the Weichai camshaft category, and pair the shaft with the WP9 cylinder head 1001677070 or the WP9 crankshaft 1000408941.
We offer OEM quality and excellent after-sales service as a complementary option. Engine brands supported include Weichai, Baudouin, Yuchai, Caterpillar, FAW Xichai, Sinotruk, Cummins and other engine parts. Specifically engine overhaul kits, pistons, cylinder liners, crankshafts, camshafts, fuel pumps, water pumps, lube pumps, injectors, and other performance parts.
If you are not sure about the part number that you need, please provide all the information you have, such as the equipment nameplate, engine nameplate or engine number, or real photos.
The camshaft is the part that remembers the engine's breathing strategy. Its lobes open the intake and exhaust valves at fixed points, and the profile sets lift and duration. On the Weichai WP9, part 1002606464 is the camshaft used across the 9-litre family, carrying the drive gear for the injection pump on mechanical versions and the auxiliary drive take-off.
When a lobe wears flat, the valve stops opening fully. Airflow drops, exhaust temperature climbs and power falls away gradually. Drivers usually report it as a general loss of pulling power, and workshops often chase injectors or the turbo before removing the valve cover.
The shaft fits WP9, WP9H and WP9G engines in heavy trucks, buses, loaders, excavators and generator sets. These engines often run at sustained load, which makes valve train wear more significant than on a delivery vehicle. Confirm the engine plate and the old camshaft number, because the pump drive gear and rear end differ between production batches.
| We Are 30 Years Diesel Engine Parts Supplier | |
| Brand | EPID |
| Warranty | 12 Months |
| Condition | 100%New |
| More Models | Weichai: WP9, WP9H, WP9G, 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 |
Shafts are forged from alloy steel, heat treated, induction hardened on lobes and journals, then ground to the original profile. The checks that decide durability are done on every unit:
Shafts ship oiled and sleeved in a rigid tube, with bearings and thrust plate available pre-fitted on request.
Camshaft wear is gradual and easy to misdiagnose. The classic signs are a rhythmic tapping from the valve cover that is louder when cold, exhaust port temperatures that differ between cylinders, and power loss that cannot be traced to fuel or boost.
Measure lift before replacing parts. Adjusting clearance cannot recover a flattened lobe, and continuing to run wears the lifter into the lobe until it fails completely.
Fit the camshaft with a complete new lifter set, new bearings and a thrust plate. Used lifters carry a wear pattern matched to the old lobes and will scuff a new shaft within minutes. Check the cam bores in the block for scoring and ovality before assembly.
Match the part number, the engine rating and whether the engine is mechanically or electronically controlled. A shaft from a different rating can fit but changes valve timing and emissions, and the pump drive may not align. Check the number stamped on the existing shaft if the engine has been rebuilt before.
The camshaft is one link in a gear train. A worn crank gear or slack idler changes valve timing and hammers the lobes, so a rebuilt engine should have the whole train inspected. Measure gear backlash and look for a polished or stepped tooth pattern. Replacing a camshaft while leaving worn gears in place is a reliable way to lose the new part.
Camshafts are long and slender and bend easily in transit. They ship in rigid tubes with journals protected, braced inside the carton so the tube cannot flex. If the shaft travels with heavy parts in a container, tell us so we can place it where nothing rests on it.
Oil quality and valve clearance decide camshaft life. Use the specified grade, change it at the severe-duty interval and check clearance at every major service. Keep the breather clean so oil mist does not carry abrasive dust into the valve chamber, and replace worn timing gears before they hammer the lobes.
See the Weichai camshaft category, and pair the shaft with the WP9 cylinder head 1001677070 or the WP9 crankshaft 1000408941.
Yes. Used lifters are matched to the old lobes and will destroy a new camshaft quickly.
On mechanical engines yes. Verify with a dial gauge after fitting.
The shaft comes with its gear fitted. A bare shaft is available on request.
Partially, by measuring valve lift at the rockers with a dial gauge.
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.
