Model: WP8
Part Number: 1001854444
Brands: Weichai Power
Engine Model: WP8, WP8H, WP8G
Engine Type: Diesel
Scope of application: heavy trucks, buses, construction machinery, generator sets
A cylinder block is not just a container for the rotating parts. It sets the distance between the crank centreline and the deck, the alignment of the main bores, the position of the camshaft and the geometry of the liner bores. On the Weichai WP8, part 1001854444 is the block used across the 8-litre range in heavy trucks, buses and industrial equipment.
When a block is replaced, every other component is measured against it. That is why the block is the part that decides whether an overhaul can succeed. A block with a warped deck or misaligned main bores will destroy new bearings and new head gaskets no matter how carefully the rest of the engine is assembled.
The block serves WP8, WP8H and WP8G engines in trucks, buses, loaders and generator sets. Confirm the engine plate and the old block casting number before ordering: the front cover bolt pattern and the engine mount pads changed between production years, and industrial versions sometimes use a different oil cooler mounting face.
Blocks are stripped, cleaned and measured before they are offered for sale. The checks that matter are:
Blocks ship cleaned, with machined faces oiled and protected. Liners, cam bearings and gallery plugs can be fitted before crating if requested at the time of order.
Some damage can be repaired, some cannot. A deck that has been machined more than once may fall below the minimum height, and a block with cracks through a main saddle cannot be welded reliably because welding distorts bore alignment.
The two tests that settle the question are a pressure test and a line bore check. If either fails, replacement is cheaper and far more reliable than a repair.
Once the block is on the stand, the order of assembly matters as much as the parts. Clean the galleries first, then fit the main bearings and check clearances before the crank goes in. Only after the crank turns freely should the liners and pistons go in.
A missing gallery plug means no oil pressure at start-up. Check them twice before turning the key.
Match the casting number, the front cover pattern and the engine mount holes. WP8 blocks are close relatives across ratings but not identical, and a block from a different variant may not accept your existing oil cooler or alternator bracket. Send photos of the old block from three angles with the engine plate, and our team will confirm the casting before the container is loaded.
Blocks are bolted to a timber base, banded and marked with lifting points, with the deck shielded. Because freight is charged on volume as well as weight, tell us whether the block travels with other parts so heavy items can be loaded first. Common castings are normally available within three to five working days, with sea freight taking twenty-five to forty days depending on the destination port.
Coolant quality prevents liner pitting, oil quality prevents bearing wear and healthy engine mounts prevent cracking. Replace a failed vibration damper promptly, because crank whip loads the main saddles, and keep the radiator clean in dusty operations so coolant temperature stays in range.
It is supplied bare by default. Liners, cam bearings and gallery plugs can be fitted on request.
Not reliably. Welding distorts alignment and the crack returns under load.
No. They are different castings with different bore spacing and deck height.
Deck flatness, main bore alignment, liner bore roundness and the pressure test report.
Browse the Weichai cylinder block category, and complete the build with the WP7 and WP8 cylinder liner 610800010503 or the WP7 and WP8 piston 1004961918.
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 cylinder block is not just a container for the rotating parts. It sets the distance between the crank centreline and the deck, the alignment of the main bores, the position of the camshaft and the geometry of the liner bores. On the Weichai WP8, part 1001854444 is the block used across the 8-litre range in heavy trucks, buses and industrial equipment.
When a block is replaced, every other component is measured against it. That is why the block is the part that decides whether an overhaul can succeed. A block with a warped deck or misaligned main bores will destroy new bearings and new head gaskets no matter how carefully the rest of the engine is assembled.
The block serves WP8, WP8H and WP8G engines in trucks, buses, loaders and generator sets. Confirm the engine plate and the old block casting number before ordering: the front cover bolt pattern and the engine mount pads changed between production years, and industrial versions sometimes use a different oil cooler mounting face.
| We Are 30 Years Diesel Engine Parts Supplier | |
| Brand | EPID |
| Warranty | 12 Months |
| Condition | 100%New |
| More Models | Weichai: WP8, WP8H, WP8G, 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 |
Blocks are stripped, cleaned and measured before they are offered for sale. The checks that matter are:
Blocks ship cleaned, with machined faces oiled and protected. Liners, cam bearings and gallery plugs can be fitted before crating if requested at the time of order.
Some damage can be repaired, some cannot. A deck that has been machined more than once may fall below the minimum height, and a block with cracks through a main saddle cannot be welded reliably because welding distorts bore alignment.
The two tests that settle the question are a pressure test and a line bore check. If either fails, replacement is cheaper and far more reliable than a repair.
Once the block is on the stand, the order of assembly matters as much as the parts. Clean the galleries first, then fit the main bearings and check clearances before the crank goes in. Only after the crank turns freely should the liners and pistons go in.
A missing gallery plug means no oil pressure at start-up. Check them twice before turning the key.
Match the casting number, the front cover pattern and the engine mount holes. WP8 blocks are close relatives across ratings but not identical, and a block from a different variant may not accept your existing oil cooler or alternator bracket. Send photos of the old block from three angles with the engine plate, and our team will confirm the casting before the container is loaded.
Blocks are bolted to a timber base, banded and marked with lifting points, with the deck shielded. Because freight is charged on volume as well as weight, tell us whether the block travels with other parts so heavy items can be loaded first. Common castings are normally available within three to five working days, with sea freight taking twenty-five to forty days depending on the destination port.
Coolant quality prevents liner pitting, oil quality prevents bearing wear and healthy engine mounts prevent cracking. Replace a failed vibration damper promptly, because crank whip loads the main saddles, and keep the radiator clean in dusty operations so coolant temperature stays in range.
Browse the Weichai cylinder block category, and complete the build with the WP7 and WP8 cylinder liner 610800010503 or the WP7 and WP8 piston 1004961918.
It is supplied bare by default. Liners, cam bearings and gallery plugs can be fitted on request.
Not reliably. Welding distorts alignment and the crack returns under load.
No. They are different castings with different bore spacing and deck height.
Deck flatness, main bore alignment, liner bore roundness and the pressure test report.
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.
