Model: WP9
Part Number: 11600040014
Brands: Weichai Power
Engine Model: WP9, WP9H, WP9G
Engine Type: Diesel
Scope of application: heavy trucks, buses, construction machinery, generator sets
A full gasket kit is the difference between an overhaul that stays dry and one that marks its territory. This set is the complete sealing package for the 9-litre Weichai engine: 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 small O-rings used across the engine.
Buying the set costs less than assembling parts individually and guarantees that every sealing surface is renewed together. Reusing an old manifold or pan gasket is the most common reason a freshly rebuilt engine starts leaking within a thousand kilometres.
The kit covers WP9, WP9H and WP9G engines in heavy trucks, buses, loaders, excavators and generator sets. These are engines that work hard, so sealing quality matters more than on a lightly loaded unit. Confirm the engine plate and, where possible, the old gasket number before ordering, especially if the head casting has been changed during an earlier rebuild.
Gaskets succeed or fail on materials. This kit uses multi-layer steel for the head gasket with an elastomer coating that conforms to minor deck imperfections, reinforced composite for oil pan and timing cover flanges, annealed copper washers for injectors and banjo fittings, and heat-resistant rubber lip seals for the crank ends.
Kits are packed flat in a rigid carton so the head gasket cannot be creased. A creased gasket leaks even when fitted perfectly.
Workshops see a predictable set of symptoms before ordering a full kit: oil weeping from the pan rail or rear main area, coolant seeping at the water pump, soot marks around manifold joints with a whistling under load, bubbles in the radiator, and oil or coolant mixing.
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, which is exactly why the head should be checked at the same time.
Three details decide the fit: engine model, model year and the head casting currently fitted. A kit for an early WP9 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.
The first mistake is reusing the pan gasket after removing the pan to inspect bearings. The second is mixing sealant with a steel head gasket. The third is fitting the manifold gaskets dry when the manual calls for a thin film on one side only. Each of these produces a leak that appears only when the engine is hot and working, when the repair costs several times more than the parts.
Kits are light and compact, which makes them ideal to consolidate with liners, pistons or a cylinder block. Tell us what else is going into the shipment and we will pack the kit on top so it is not crushed under heavy parts.
New gaskets settle over the first few hundred hours. Retorque manifold bolts and check pan bolts after the first week, keep the coolant at the correct mixture to prevent liner pitting, and repair any oil leak immediately, because oil soaking into a composite gasket eventually softens it.
Yes. 11600040014 is a full set with head gasket, manifold gaskets, pan gasket, crank seals and small washers.
No. The WP8 uses different sealing parts. Ask us for the matching kit.
No. The steel gasket is installed dry.
No. Gaskets and copper washers are single-use items.
Browse the Weichai gasket set category, and pair the kit 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.
A full gasket kit is the difference between an overhaul that stays dry and one that marks its territory. This set is the complete sealing package for the 9-litre Weichai engine: 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 small O-rings used across the engine.
Buying the set costs less than assembling parts individually and guarantees that every sealing surface is renewed together. Reusing an old manifold or pan gasket is the most common reason a freshly rebuilt engine starts leaking within a thousand kilometres.
The kit covers WP9, WP9H and WP9G engines in heavy trucks, buses, loaders, excavators and generator sets. These are engines that work hard, so sealing quality matters more than on a lightly loaded unit. Confirm the engine plate and, where possible, the old gasket number before ordering, especially if the head casting has been changed during an earlier rebuild.
| 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 |
Gaskets succeed or fail on materials. This kit uses multi-layer steel for the head gasket with an elastomer coating that conforms to minor deck imperfections, reinforced composite for oil pan and timing cover flanges, annealed copper washers for injectors and banjo fittings, and heat-resistant rubber lip seals for the crank ends.
Kits are packed flat in a rigid carton so the head gasket cannot be creased. A creased gasket leaks even when fitted perfectly.
Workshops see a predictable set of symptoms before ordering a full kit: oil weeping from the pan rail or rear main area, coolant seeping at the water pump, soot marks around manifold joints with a whistling under load, bubbles in the radiator, and oil or coolant mixing.
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, which is exactly why the head should be checked at the same time.
Three details decide the fit: engine model, model year and the head casting currently fitted. A kit for an early WP9 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.
The first mistake is reusing the pan gasket after removing the pan to inspect bearings. The second is mixing sealant with a steel head gasket. The third is fitting the manifold gaskets dry when the manual calls for a thin film on one side only. Each of these produces a leak that appears only when the engine is hot and working, when the repair costs several times more than the parts.
Kits are light and compact, which makes them ideal to consolidate with liners, pistons or a cylinder block. Tell us what else is going into the shipment and we will pack the kit on top so it is not crushed under heavy parts.
New gaskets settle over the first few hundred hours. Retorque manifold bolts and check pan bolts after the first week, keep the coolant at the correct mixture to prevent liner pitting, and repair any oil leak immediately, because oil soaking into a composite gasket eventually softens it.
Browse the Weichai gasket set category, and pair the kit with the WP9 cylinder head 1001677070 or the WP9 crankshaft 1000408941.
Yes. 11600040014 is a full set with head gasket, manifold gaskets, pan gasket, crank seals and small washers.
No. The WP8 uses different sealing parts. Ask us for the matching kit.
No. The steel gasket is installed dry.
No. Gaskets and copper washers are single-use items.
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.
