Model: WP13
Part Number: 612700040018
Brands: Weichai Power
Engine Model: WP13, WP13.480, WP13.500, WP13.550, WP13.580
Engine Type: Diesel
Scope of application: heavy haulage trucks, mining dump trucks, construction machinery, generator sets
Kit 612700040018 is the complete sealing set for a WP13 rebuild. It contains the 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.
A 13-litre engine works hard, and the sealing parts see higher heat and pressure than on a mid-range unit. Buying the full set guarantees that every joint is renewed at the same time, which matters because a single reused gasket can start a leak that appears only under full load.
The kit covers WP13 engines from 480 to 580 horsepower in heavy trucks, mining dump trucks, large loaders and generator sets. Confirm the engine plate and, where possible, the old gasket number before ordering, especially if the head has been replaced 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 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.
Before ordering, confirm which gasket has failed. Oil at the pan rail points to the pan gasket or rear main. Coolant at the front points to the water pump. Soot around manifold joints points to manifold gaskets. Bubbles in the radiator point to the head gasket.
If the head gasket has failed, check deck flatness on both head and block. On a WP13 that has been overheated, the head is often warped as well, and fitting a new gasket to a warped head guarantees a second failure.
Three details decide fit: engine model, model year and the head casting currently fitted. A kit for an early WP13 may not match a later head because coolant passages and injector bores changed. Send the engine plate photo and the old gasket number and we will confirm before shipping.
The three most common mistakes are reusing the pan gasket after removing the pan, adding sealant to a steel head gasket and fitting manifold gaskets dry when the manual calls for a thin film. Each produces a leak that appears only when the engine is hot and working, when the repair costs far more.
Never open a WP13 cooling system while it is hot. The system is pressurised and the coolant is well above boiling point, and releasing the cap can cause severe burns. Let the engine cool completely, then release the cap slowly. On a heavy truck this simple caution prevents more injuries than any other workshop habit.
Kits are light and compact, ideal for consolidating with liners, pistons or a block. Tell us what else is in the shipment so we can pack the kit on top and prevent it being crushed.
Retorque manifold bolts and check pan bolts after the first week. Keep 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.
WP13 head bolts are torque-to-yield: they are tightened past their elastic limit to clamp the head evenly. Once used, they do not return to their original length, and reusing them reduces clamping force. That shows up as a head gasket leak at high load, often within the first few thousand kilometres, and it is frequently blamed on the gasket rather than the bolts.
Always order a new bolt set with the kit. Check that all bolts are the same length when new, and follow the factory torque sequence exactly rather than a generic pattern.
Yes. 612700040018 is a full set with head gasket, manifold gaskets, pan gasket, crank seals and washers.
No. The WP12 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.
Browse the Weichai gasket set category, and pair the kit with the WP13 cylinder head 612700040030 or the WP13 cylinder liner 612700010010.
Weichai WP13 Full Gasket Kit (612700040018). The gasket set seals combustion, coolant and oil at every joint opened during a top-end repair. The head gasket inside it is the component that decides whether the job holds.
Compare the old head gasket with the new one for fire ring position, coolant hole pattern and thickness. A gasket from the wrong generation bolts up and leaks at the fire ring.
Numbers beginning 6127 are shared with the WP13 generation. A part from an adjacent revision will bolt up and behave differently, which is why the old component should be photographed before an order is placed. On this engine, confirm the WP13 application against the engine plate before ordering.
Install the head gasket dry unless the manual says otherwise. Sealant prevents composite and MLS gaskets from seating correctly.
Ordering note. Warranty is twelve months against manufacturing defects. Failures caused by incorrect clearance, overheating or debris are assessed on the returned part rather than refused outright.
Related reading: Head Gasket Failure Symptoms and How to Choose a Replacement
| We Are 30 Years Diesel Engine Parts Supplier | |
| Brand | EPID |
| Warranty | 12 Months |
| Condition | 100%New |
| More Models | Weichai: WP13, WP13.480, WP13.500, WP13.550, WP13.580, 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 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.
Before ordering, confirm which gasket has failed. Oil at the pan rail points to the pan gasket or rear main. Coolant at the front points to the water pump. Soot around manifold joints points to manifold gaskets. Bubbles in the radiator point to the head gasket.
If the head gasket has failed, check deck flatness on both head and block. On a WP13 that has been overheated, the head is often warped as well, and fitting a new gasket to a warped head guarantees a second failure.
Three details decide fit: engine model, model year and the head casting currently fitted. A kit for an early WP13 may not match a later head because coolant passages and injector bores changed. Send the engine plate photo and the old gasket number and we will confirm before shipping.
The three most common mistakes are reusing the pan gasket after removing the pan, adding sealant to a steel head gasket and fitting manifold gaskets dry when the manual calls for a thin film. Each produces a leak that appears only when the engine is hot and working, when the repair costs far more.
Never open a WP13 cooling system while it is hot. The system is pressurised and the coolant is well above boiling point, and releasing the cap can cause severe burns. Let the engine cool completely, then release the cap slowly. On a heavy truck this simple caution prevents more injuries than any other workshop habit.
Kits are light and compact, ideal for consolidating with liners, pistons or a block. Tell us what else is in the shipment so we can pack the kit on top and prevent it being crushed.
Retorque manifold bolts and check pan bolts after the first week. Keep 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.
WP13 head bolts are torque-to-yield: they are tightened past their elastic limit to clamp the head evenly. Once used, they do not return to their original length, and reusing them reduces clamping force. That shows up as a head gasket leak at high load, often within the first few thousand kilometres, and it is frequently blamed on the gasket rather than the bolts.
Always order a new bolt set with the kit. Check that all bolts are the same length when new, and follow the factory torque sequence exactly rather than a generic pattern.
Browse the Weichai gasket set category, and pair the kit with the WP13 cylinder head 612700040030 or the WP13 cylinder liner 612700010010.
Yes. 612700040018 is a full set with head gasket, manifold gaskets, pan gasket, crank seals and washers.
No. The WP12 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.
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.
