Model: WP6
Part Number: 13031471
Brands: Weichai Power
Engine Model: WP6, WP6G, WP6H
Engine Type: Diesel
Scope of application: light and medium trucks, buses, agricultural machinery, generator sets
The camshaft turns rotation into valve motion. Its lobes push the lifters, which push the pushrods, which open the valves at the points in the cycle decided by the cam profile. On the Weichai WP6, part 13031471 is the camshaft used across the mid-range family, and it also carries the drive gear for the injection pump on mechanical versions of the engine.
Valve timing decides how much air enters the cylinder and how completely exhaust gas leaves it. When lobes wear, the valve opens late and closes early, so the cylinder breathes less and the engine loses power without any obvious fault code. On mechanical engines, the pump timing is also affected, which changes fuel delivery and can raise exhaust temperature.
The camshaft fits WP6, WP6G and WP6H engines in light and medium trucks, buses, agricultural machinery and small generator sets. These engines are common in Africa and Southeast Asia, often in continuous duty with modest maintenance, so valve train wear is usually discovered during a rebuild rather than through planned inspection. Confirm the engine plate and the old camshaft number before ordering, because pump drive gears differ between mechanical and electronic versions.
Shafts are forged from alloy steel, heat treated, induction hardened on the lobes and journals, then ground to the original profile. Production checks cover the points that decide whether a camshaft lives or fails:
Every shaft is oiled, sleeved and packed in a rigid tube. Bearings and a thrust plate can be fitted before delivery if requested.
Camshaft wear is slow and easy to blame on something else. The first symptom is usually a light tapping at the valve cover that is louder when the engine is cold, because clearance has opened up as the lobe and lifter have worn. Later the engine becomes reluctant to rev, exhaust temperature rises and fuel consumption creeps up.
Measure lift before replacing anything. Adjusting valve clearance will not recover a flattened lobe, and continuing to run will wear 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 of running. Check the cam bores in the block for scoring and ovality before assembly, because a tight bore seizes the journal and destroys the shaft.
Long idling during the break-in period is the main cause of lobe scuffing, because oil splash to the lobes is minimal at low speed. Load the engine moderately as soon as it is warm.
Match the part number, the engine rating and whether the engine is mechanically or electronically controlled. A shaft from a different rating may fit but changes valve timing and emissions, and the pump drive may not align. If the engine has been rebuilt before, check the number stamped on the existing shaft.
For fleets, keeping one camshaft and one lifter set in stock shortens downtime noticeably. Camshaft failures are not common, but when they happen the vehicle usually waits weeks for a part that costs little.
Oil quality and valve clearance decide camshaft life. Use the specified oil grade, change it at the severe-duty interval and check clearance at every major service. Keep the crankcase breather clean so oil mist does not carry abrasive dust into the valve chamber, and replace worn timing gears before they hammer the lobes. On engines used in dusty conditions, inspect the air intake system at the same time, since dust that reaches the oil accelerates all valve train wear.
Yes. Used lifters are matched to the old lobes and will destroy a new camshaft quickly.
On mechanical engines yes. Always verify pump timing after fitting a camshaft.
The shaft comes with its drive gear fitted. A bare shaft is available on request.
Partially. Measure valve lift at the rockers; a low reading indicates a worn lobe.
See the Weichai camshaft category, and pair the shaft with the WP6 engine overhaul kit 13032095 or the WP6 cylinder head 13028584.
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 turns rotation into valve motion. Its lobes push the lifters, which push the pushrods, which open the valves at the points in the cycle decided by the cam profile. On the Weichai WP6, part 13031471 is the camshaft used across the mid-range family, and it also carries the drive gear for the injection pump on mechanical versions of the engine.
Valve timing decides how much air enters the cylinder and how completely exhaust gas leaves it. When lobes wear, the valve opens late and closes early, so the cylinder breathes less and the engine loses power without any obvious fault code. On mechanical engines, the pump timing is also affected, which changes fuel delivery and can raise exhaust temperature.
The camshaft fits WP6, WP6G and WP6H engines in light and medium trucks, buses, agricultural machinery and small generator sets. These engines are common in Africa and Southeast Asia, often in continuous duty with modest maintenance, so valve train wear is usually discovered during a rebuild rather than through planned inspection. Confirm the engine plate and the old camshaft number before ordering, because pump drive gears differ between mechanical and electronic versions.
| We Are 30 Years Diesel Engine Parts Supplier | |
| Brand | EPID |
| Warranty | 12 Months |
| Condition | 100%New |
| More Models | Weichai: WP6, WP6G, WP6H, 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 the lobes and journals, then ground to the original profile. Production checks cover the points that decide whether a camshaft lives or fails:
Every shaft is oiled, sleeved and packed in a rigid tube. Bearings and a thrust plate can be fitted before delivery if requested.
Camshaft wear is slow and easy to blame on something else. The first symptom is usually a light tapping at the valve cover that is louder when the engine is cold, because clearance has opened up as the lobe and lifter have worn. Later the engine becomes reluctant to rev, exhaust temperature rises and fuel consumption creeps up.
Measure lift before replacing anything. Adjusting valve clearance will not recover a flattened lobe, and continuing to run will wear 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 of running. Check the cam bores in the block for scoring and ovality before assembly, because a tight bore seizes the journal and destroys the shaft.
Long idling during the break-in period is the main cause of lobe scuffing, because oil splash to the lobes is minimal at low speed. Load the engine moderately as soon as it is warm.
Match the part number, the engine rating and whether the engine is mechanically or electronically controlled. A shaft from a different rating may fit but changes valve timing and emissions, and the pump drive may not align. If the engine has been rebuilt before, check the number stamped on the existing shaft.
For fleets, keeping one camshaft and one lifter set in stock shortens downtime noticeably. Camshaft failures are not common, but when they happen the vehicle usually waits weeks for a part that costs little.
Oil quality and valve clearance decide camshaft life. Use the specified oil grade, change it at the severe-duty interval and check clearance at every major service. Keep the crankcase breather clean so oil mist does not carry abrasive dust into the valve chamber, and replace worn timing gears before they hammer the lobes. On engines used in dusty conditions, inspect the air intake system at the same time, since dust that reaches the oil accelerates all valve train wear.
See the Weichai camshaft category, and pair the shaft with the WP6 engine overhaul kit 13032095 or the WP6 cylinder head 13028584.
Yes. Used lifters are matched to the old lobes and will destroy a new camshaft quickly.
On mechanical engines yes. Always verify pump timing after fitting a camshaft.
The shaft comes with its drive gear fitted. A bare shaft is available on request.
Partially. Measure valve lift at the rockers; a low reading indicates a worn lobe.
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.
