Model: YC4108
Part Number: D2000-1006015
Brands: Yuchai
Engine Model: YC4108
Engine Type: Diesel
Scope of application: light and medium trucks, agricultural machinery, generator sets, marine auxiliary
Yuchai used more than one camshaft part number on the YC4108 depending on production period and injection pump arrangement. Part D2000-1006015 is one of those variants, and the correct choice depends on the pump drive fitted to the engine rather than on the model name alone.
That distinction matters because a camshaft from the wrong variant will fit the block and change valve or injection timing. The engine may run, but not as designed, and the fault is hard to trace because everything appears to be assembled correctly.
Compare the pump drive gear and the rear end of the shaft with the old part. The lobe spacing is also visible when the two are laid side by side. Where the old shaft is unavailable, the engine plate and pump type usually resolve it.
A rebuilt engine with a timing error does not usually fail to start. It starts, idles roughly, smokes and feels flat. The cause is often a camshaft or pump installed one tooth out, or a camshaft from the wrong variant. Verifying pump timing with a dial gauge before closing the front cover takes minutes and prevents a strip-down.
Clearance set too tight burns valves and hammers lobes; too loose is noisy but harmless. Set it cold to the specification and recheck after the first heat cycle. On a YC4108 in field service, checking clearances at every major service is the single best way to make the camshaft last.
Dust and poor oil are the two main causes of camshaft wear on agricultural engines. Keep the air filter sealed and change oil at the severe-duty interval. Oil that has carried abrasive dust polishes lobes and lifters far faster than normal service.
Match the part number, the pump type and the engine rating. Send photographs of the old shaft ends and the engine plate and our team will confirm the variant before shipping.
Inspect the whole gear train when the camshaft is replaced. A worn idler or crank gear changes timing and hammers the lobes, and fitting a new shaft into a worn train wastes the part.
On a mechanical engine the camshaft and the injection pump are timed together, and a shaft from the wrong variant shifts injection timing even though valve timing may still look correct. That produces smoke, high exhaust temperature and poor economy that no pump adjustment can fully correct. The part number and the pump type are the identifiers that matter.
YC4108 engines in agricultural service accumulate hours quickly. Checking valve clearances at every major service catches lobe and lifter wear early, when the repair is a set of lifters rather than a camshaft. Keep the crankcase breather clean so oil mist does not carry dust into the valve chamber.
Run the rebuilt engine at moderate speed for the first twenty minutes rather than letting it idle. Oil splash to the lobes is minimal at idle, and a new shaft can scuff within minutes. Then change oil and filter to remove the metal produced while lobes and lifters bed in.
A camshaft and its lifters wear as a pair. The lobe and the lifter face develop a matched contact pattern, and putting a used lifter onto a new lobe destroys the lobe within hours of running. Every shaft should be installed with a complete new lifter set of the same specification, and the lifter bores in the block should be checked for free rotation.
Compare the pump drive and the old shaft, or send us photos.
Yes, with the shaft.
Yes, with a dial gauge.
The shaft comes with its gear fitted.
Browse the Yuchai camshaft category, and pair the shaft with the YC4108 camshaft D30-1006000A or the YC4108 overhaul kit A9W00-9000200.
Yuchai YC4108 Camshaft (1006015). 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.
Check the lifter faces as well as the lobes. A dished lifter has already lost its crown and will destroy a new shaft even if the camshaft itself looks serviceable.
Numbers beginning 1006 belong to the numeric series used on WP12 and WD618 later production. Cross-referencing against the old part number is recommended. On this engine, confirm the YC4108 application against the engine plate before ordering.
Fit new lifters, bearings and a thrust plate with the shaft. Used lifters carry the wear pattern of the old lobes and scuff a new camshaft within minutes of running.
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: YC4108, 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 |
A rebuilt engine with a timing error does not usually fail to start. It starts, idles roughly, smokes and feels flat. The cause is often a camshaft or pump installed one tooth out, or a camshaft from the wrong variant. Verifying pump timing with a dial gauge before closing the front cover takes minutes and prevents a strip-down.
Clearance set too tight burns valves and hammers lobes; too loose is noisy but harmless. Set it cold to the specification and recheck after the first heat cycle. On a YC4108 in field service, checking clearances at every major service is the single best way to make the camshaft last.
Dust and poor oil are the two main causes of camshaft wear on agricultural engines. Keep the air filter sealed and change oil at the severe-duty interval. Oil that has carried abrasive dust polishes lobes and lifters far faster than normal service.
Match the part number, the pump type and the engine rating. Send photographs of the old shaft ends and the engine plate and our team will confirm the variant before shipping.
Inspect the whole gear train when the camshaft is replaced. A worn idler or crank gear changes timing and hammers the lobes, and fitting a new shaft into a worn train wastes the part.
On a mechanical engine the camshaft and the injection pump are timed together, and a shaft from the wrong variant shifts injection timing even though valve timing may still look correct. That produces smoke, high exhaust temperature and poor economy that no pump adjustment can fully correct. The part number and the pump type are the identifiers that matter.
YC4108 engines in agricultural service accumulate hours quickly. Checking valve clearances at every major service catches lobe and lifter wear early, when the repair is a set of lifters rather than a camshaft. Keep the crankcase breather clean so oil mist does not carry dust into the valve chamber.
Run the rebuilt engine at moderate speed for the first twenty minutes rather than letting it idle. Oil splash to the lobes is minimal at idle, and a new shaft can scuff within minutes. Then change oil and filter to remove the metal produced while lobes and lifters bed in.
A camshaft and its lifters wear as a pair. The lobe and the lifter face develop a matched contact pattern, and putting a used lifter onto a new lobe destroys the lobe within hours of running. Every shaft should be installed with a complete new lifter set of the same specification, and the lifter bores in the block should be checked for free rotation.
Browse the Yuchai camshaft category, and pair the shaft with the YC4108 camshaft D30-1006000A or the YC4108 overhaul kit A9W00-9000200.
Compare the pump drive and the old shaft, or send us photos.
Yes, with the shaft.
Yes, with a dial gauge.
The shaft comes with its gear fitted.
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.
