Model: WP12 / WD618
Part Number: 612600900279
Brands: Weichai Power
Engine Model: WP12, WD12, WD618, WP12.430, WP12.460
Engine Type: Diesel
Scope of application: heavy trucks, mining dump trucks, construction machinery, marine and generator engines
A full gasket kit is what separates an overhaul that stays dry from one that marks its territory. This set is the complete sealing package for the 12-litre Weichai family: multi-layer steel head gasket, valve cover gasket, intake and exhaust manifold gaskets, oil pan gasket, front and rear crank seals, water pump and thermostat housing seals, injector copper washers and the assorted O-rings used across the engine.
Buying the complete kit costs less than assembling the parts individually and, more importantly, guarantees that every sealing surface is renewed at the same time. Reusing an old manifold gasket after a rebuild is the most common reason a fresh engine starts leaking within the first thousand kilometres.
The kit covers WP12 and WD12 road engines and the WD618 industrial and marine variants. Typical installations are HOWO and Shacman heavy tractors, 8x4 mining dump trucks, large excavators and loaders, marine auxiliary engines and 250 to 400 kVA generator sets. Because these engines share a common architecture, one kit serves a wide range of ratings.
Always confirm the engine plate and, where possible, the old gasket part number. Engines rebuilt with a later cylinder head may need a different head gasket variant, which we can supply separately.
Every kit is checked against the original Weichai parts list so no washer or O-ring is missing. Kits are packed flat and labelled by position, in a rigid carton that prevents the head gasket from being creased in transit.
If the head gasket has failed, check deck flatness on both head and block before fitting the new kit. A new gasket on a warped deck fails again within a few thousand kilometres.
Three numbers decide the fit: engine model, model year and the head casting currently fitted. A kit that suits an early WP12 may not match a later head because coolant passage and injector bore layouts changed. Send the engine plate photo and the old gasket number and we will confirm before shipping.
Workshops that overhaul these engines regularly keep one complete kit on the shelf. It is light, does not expire and saves days of waiting when a truck arrives with a leaking engine.
New gaskets settle over the first few hundred hours. Retorque manifold bolts and check pan bolts after the first week. Keep the cooling system at the correct mixture to prevent liner pitting, and repair any oil leak immediately, because oil soaking into a composite gasket eventually softens it.
Gasket kits are often ordered by engine model alone, which is where mistakes begin. The same WP12 designation covered several production revisions, and the head gasket changed along with the cylinder head casting. If in doubt, compare the old head gasket against the new one before the engine is stripped: fire ring position, coolant hole pattern and thickness must all match.
Two other mistakes cost workshops time. The first is reusing the oil pan gasket after removing the pan to inspect bearings. The second is mixing sealant with a steel head gasket. Both lead to leaks that appear only after the engine is hot and under load, when the repair is far more expensive.
Kits are packed flat in a rigid carton to prevent the head gasket being creased, which would ruin its sealing ability. Store the kit flat and dry, away from direct sunlight, until it is fitted. Composite gaskets absorb moisture slowly, so a kit that has sat in a damp store for years should be inspected before use.
Yes. 612600900279 is a full set containing the head gasket, manifold gaskets, oil pan gasket, crank seals and small sealing washers.
No. The WP13 uses different sealing parts. Ask us for the matching WP13 kit.
No. The multi-layer steel gasket is designed to be installed dry.
No. Gaskets and copper washers are single-use and must be replaced each time a joint is opened.
Browse the Weichai gasket set category, and complete the job with the WP12 cylinder head 612630040001 or the WP12 full gasket kit 612600900279.
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.
A full gasket kit is what separates an overhaul that stays dry from one that marks its territory. This set is the complete sealing package for the 12-litre Weichai family: multi-layer steel head gasket, valve cover gasket, intake and exhaust manifold gaskets, oil pan gasket, front and rear crank seals, water pump and thermostat housing seals, injector copper washers and the assorted O-rings used across the engine.
Buying the complete kit costs less than assembling the parts individually and, more importantly, guarantees that every sealing surface is renewed at the same time. Reusing an old manifold gasket after a rebuild is the most common reason a fresh engine starts leaking within the first thousand kilometres.
The kit covers WP12 and WD12 road engines and the WD618 industrial and marine variants. Typical installations are HOWO and Shacman heavy tractors, 8x4 mining dump trucks, large excavators and loaders, marine auxiliary engines and 250 to 400 kVA generator sets. Because these engines share a common architecture, one kit serves a wide range of ratings.
Always confirm the engine plate and, where possible, the old gasket part number. Engines rebuilt with a later cylinder head may need a different head gasket variant, which we can supply separately.
| We Are 30 Years Diesel Engine Parts Supplier | |
| Brand | EPID |
| Warranty | 12 Months |
| Condition | 100%New |
| More Models | Weichai: WP12, WD12, WD618, WP12.430, WP12.460, 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 |
Every kit is checked against the original Weichai parts list so no washer or O-ring is missing. Kits are packed flat and labelled by position, in a rigid carton that prevents the head gasket from being creased in transit.
If the head gasket has failed, check deck flatness on both head and block before fitting the new kit. A new gasket on a warped deck fails again within a few thousand kilometres.
Three numbers decide the fit: engine model, model year and the head casting currently fitted. A kit that suits an early WP12 may not match a later head because coolant passage and injector bore layouts changed. Send the engine plate photo and the old gasket number and we will confirm before shipping.
Workshops that overhaul these engines regularly keep one complete kit on the shelf. It is light, does not expire and saves days of waiting when a truck arrives with a leaking engine.
New gaskets settle over the first few hundred hours. Retorque manifold bolts and check pan bolts after the first week. Keep the cooling system at the correct mixture to prevent liner pitting, and repair any oil leak immediately, because oil soaking into a composite gasket eventually softens it.
Gasket kits are often ordered by engine model alone, which is where mistakes begin. The same WP12 designation covered several production revisions, and the head gasket changed along with the cylinder head casting. If in doubt, compare the old head gasket against the new one before the engine is stripped: fire ring position, coolant hole pattern and thickness must all match.
Two other mistakes cost workshops time. The first is reusing the oil pan gasket after removing the pan to inspect bearings. The second is mixing sealant with a steel head gasket. Both lead to leaks that appear only after the engine is hot and under load, when the repair is far more expensive.
Kits are packed flat in a rigid carton to prevent the head gasket being creased, which would ruin its sealing ability. Store the kit flat and dry, away from direct sunlight, until it is fitted. Composite gaskets absorb moisture slowly, so a kit that has sat in a damp store for years should be inspected before use.
Browse the Weichai gasket set category, and complete the job with the WP12 cylinder head 612630040001 or the WP12 full gasket kit 612600900279.
Yes. 612600900279 is a full set containing the head gasket, manifold gaskets, oil pan gasket, crank seals and small sealing washers.
No. The WP13 uses different sealing parts. Ask us for the matching WP13 kit.
No. The multi-layer steel gasket is designed to be installed dry.
No. Gaskets and copper washers are single-use and must be replaced each time a joint is opened.
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.
