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NG ATTACHMENTS | HEAVY EQUIPMENT ENGINE PARTS
Construction Equipment Crankshafts
NG Attachments supplies aftermarket crankshafts for construction equipment engines, including excavators, wheel loaders, dozers, graders, material handlers, mining machines and heavy-duty diesel engine applications.Our crankshaft supply range supports engine rebuild operations, major engine overhaul projects and repair workshops working with Caterpillar, Komatsu, Volvo, Hitachi, Hyundai, Doosan, Develon, JCB, Liebherr, Kobelco, Case, Sany, XCMG and Hidromek construction machinery.
Diesel Engine Crankshafts
Aftermarket Crankshafts for Excavators and Heavy Equipment Engines
The crankshaft is one of the most critical rotating components inside a diesel engine. It converts piston movement into rotational power and must resist high torque, bending stress, impact loads, oil pressure variations and continuous heavy-duty operation.In construction machinery engines, crankshaft failure can lead to complete engine downtime, costly repairs and long machine stoppage. For this reason, correct part identification, dimensional control, material quality and bearing compatibility are essential before replacing a crankshaft.
Excavator Crankshafts
Crankshafts for medium and heavy excavator diesel engines used in construction, quarry, demolition, mining and infrastructure projects.Loader and Dozer Crankshafts
Replacement crankshafts for wheel loaders, dozers, graders and heavy-duty earthmoving machines working under high-load conditions.Engine Overhaul Support
Crankshaft supply can be combined with main bearings, connecting rod bearings, thrust washers, pistons, liners, gasket kits and overhaul components.Crankshaft Product Range
Construction Machinery Crankshaft Supply Scope
NG can evaluate crankshaft requests according to engine model, engine serial number, machine model, OEM reference number, crankshaft dimensions or sample part information. The following table shows the main crankshaft-related supply and quotation scope.
| Product Group | Common Product Names | Application | Compatible Machine Types | Required Information | Technical Check Before Ordering |
|---|
| Diesel Engine Crankshafts | Crankshaft, engine crankshaft, forged crankshaft, replacement crankshaft | Major engine repair and complete engine overhaul | Excavators, loaders, dozers, graders, mining machines, material handlers | Engine model, engine serial number, OEM reference number, crankshaft photos | Confirm journal size, bearing size, engine version and damage condition |
| Excavator Crankshafts | Excavator engine crankshaft, crawler excavator crankshaft, diesel crankshaft | Excavator engine rebuild after bearing failure, wear or crankshaft damage | CAT, Komatsu, Volvo, Hitachi, Hyundai, Doosan, JCB, Kobelco excavators | Machine model, engine model, engine nameplate photo, part number | Check whether engine uses standard or undersize bearings |
| Loader Engine Crankshafts | Wheel loader crankshaft, loader engine crankshaft, heavy equipment crankshaft | Loader engine overhaul and high-hour engine repair | Wheel loaders, block handlers, quarry loaders, industrial loaders | Loader model, engine code, crankshaft part number, journal measurements | Check crankshaft gear, pulley connection and thrust washer configuration |
| Crankshaft Bearing Sets | Main bearing set, connecting rod bearing set, thrust washer, crankshaft bearing kit | Used together with crankshaft during engine rebuild | All heavy-duty diesel engines | Engine model, crankshaft journal size, standard or undersize requirement | Measure crankshaft journals before selecting bearing size |
| Crankshaft Related Components | Crankshaft gear, pulley, oil seal, vibration damper, thrust washer, flywheel bolts | Supports crankshaft installation and engine rotational stability | Excavators, loaders, dozers and industrial diesel engines | Engine model, photos, part number, front and rear crankshaft details | Check installation side, seal diameter and gear compatibility |
| Engine Overhaul Kits | Crankshaft with piston liner kit, bearing kit, gasket set and oil seals | Complete engine rebuild package | Heavy equipment diesel engines | Engine model, serial number, rebuild scope, part number list | Confirm full or partial overhaul requirement before ordering |
Important: Crankshafts must be matched with the correct bearing size and engine version. Please send the engine nameplate photo, engine model, crankshaft part number and existing crankshaft measurements whenever possible.
Machine Brand and Model Coverage
Construction Equipment Brands and Models We Support
NG Attachments can evaluate crankshaft requests for many construction equipment brands and engine configurations. The following list is designed to support SEO visibility and guide customers when requesting crankshaft quotations.
| Machine Brand | Common Excavator Models | Other Construction Equipment Models | Crankshaft Search Keywords | Required Identification Details | Quotation Notes |
|---|
| Caterpillar / CAT | CAT 305, 307, 312, 315, 320, 323, 325, 330, 336, 340, 349, 352, 374, 390 | CAT 950, 966, 972, 980, 982, 988 loaders; CAT dozers and graders | CAT excavator crankshaft, Caterpillar engine crankshaft, CAT 336 crankshaft, CAT 320 crankshaft | Engine arrangement number, engine serial number, machine serial number, OEM reference number | Confirm engine arrangement and bearing size before ordering |
| Komatsu | PC55, PC78, PC130, PC160, PC200, PC210, PC240, PC290, PC300, PC350, PC400, PC450, PC490, PC800 | WA320, WA380, WA470, WA500, WA600 loaders; Komatsu dozers | Komatsu excavator crankshaft, Komatsu PC200 crankshaft, Komatsu PC400 crankshaft | Engine model, engine serial number, machine model, Komatsu reference number | Engine model is critical because similar machine models may use different engine versions |
| Volvo | EC140, EC160, EC180, EC210, EC220, EC240, EC290, EC300, EC350, EC380, EC480, EC750 | L90, L110, L120, L150, L180, L220 loaders and Volvo construction machinery | Volvo excavator crankshaft, Volvo EC220 crankshaft, Volvo EC480 engine crankshaft | Volvo engine model, machine serial number, engine serial number, emission stage | Check exact engine code and year before selecting crankshaft |
| Hitachi | ZX130, ZX160, ZX200, ZX210, ZX225, ZX250, ZX300, ZX330, ZX350, ZX470, ZX490, ZX520, ZX870 | Hitachi mining excavators and material handling machines | Hitachi excavator crankshaft, Hitachi ZX200 crankshaft, Hitachi ZX350 crankshaft | Engine model, machine serial number, fuel system type, OEM reference number | Many Hitachi machines use engine-specific identification; engine plate photo is strongly recommended |
| Hyundai | R140, R160, R180, R210, R220, R250, R290, R300, R330, R380, R480, HX220, HX300, HX380, HX520 | Hyundai wheel loaders and heavy equipment | Hyundai excavator crankshaft, Hyundai R220 crankshaft, Hyundai HX300 crankshaft | Machine model, engine model, engine serial number and crankshaft part number | Confirm engine manufacturer because machine configuration may vary by market |
| Doosan / Develon | DX140, DX160, DX180, DX225, DX255, DX300, DX340, DX360, DX420, DX480, DX530, DX800 | DL series wheel loaders, material handlers and heavy equipment | Doosan excavator crankshaft, Develon crankshaft, DX225 crankshaft, DX360 crankshaft | Doosan or Develon model generation, engine model, part number and engine serial number | Confirm old Doosan and new Develon model generation for correct cross-reference |
| JCB | JS130, JS160, JS180, JS200, JS220, JS260, JS300, JS330, JS370 | JCB backhoe loaders, wheel loaders and industrial machinery | JCB excavator crankshaft, JCB JS220 crankshaft, JCB engine crankshaft | Engine type, build list, machine serial number and crankshaft reference number | Engine build list is very useful for exact part identification |
| Liebherr | R914, R916, R920, R922, R924, R926, R930, R934, R936, R944, R954, R956, R966, R974 | Liebherr loaders, dozers, mining equipment and material handlers | Liebherr excavator crankshaft, Liebherr R936 crankshaft, Liebherr diesel engine crankshaft | Exact model suffix, engine serial number, machine serial number and part number | Check model generation and engine configuration carefully |
| Kobelco | SK140, SK160, SK200, SK210, SK230, SK260, SK300, SK350, SK380, SK500, SK850 | Kobelco demolition and special application excavators | Kobelco excavator crankshaft, Kobelco SK200 crankshaft, Kobelco SK350 crankshaft | Engine brand, engine model, machine model, crankshaft part number | Engine brand and exact model generation must be confirmed |
| Case | CX130, CX145, CX160, CX210, CX220, CX250, CX300, CX350, CX470, CX500 | Case wheel loaders, backhoe loaders and construction equipment | Case excavator crankshaft, Case CX210 crankshaft, Case diesel engine crankshaft | Machine serial number, engine model, part number and photos | Useful for rental fleet and repair workshop quotation requests |
| Sany | SY135, SY155, SY215, SY235, SY265, SY305, SY335, SY365, SY500, SY750 | Sany cranes, loaders, graders and construction machines | Sany excavator crankshaft, Sany SY215 crankshaft, Sany diesel engine crankshaft | Machine export version, engine model, engine serial number and reference number | Engine specification may vary by market, confirm before ordering |
| XCMG | XE135, XE150, XE215, XE235, XE260, XE305, XE335, XE370, XE490, XE700 | XCMG loaders, graders, cranes and heavy construction machines | XCMG excavator crankshaft, XCMG XE215 crankshaft, XCMG construction equipment crankshaft | Machine model, engine model, part number and engine nameplate photo | Confirm engine model and machine version before quotation |
| Hidromek | HMK 140, HMK 220, HMK 230, HMK 300, HMK 370, HMK 490 | Hidromek backhoe loaders, wheel loaders and construction machinery | Hidromek excavator crankshaft, HMK 220 crankshaft, HMK 300 engine crankshaft | Engine brand, machine model, serial number and part reference | Engine identification is required because engine supplier may vary by model |
SEO Target: This page is structured to target searches such as CAT 336 crankshaft, Komatsu PC400 crankshaft, Volvo EC480 engine crankshaft, Hitachi ZX350 crankshaft, Doosan DX360 crankshaft and construction equipment crankshaft supplier.
Engine Brand Support
Crankshafts for Diesel Engine Brands Used in Construction Machinery
Construction equipment crankshafts are often selected according to the engine brand and engine code rather than the machine model alone. The same excavator model can use different engines depending on production year, market, emission standard and machine configuration.
| Engine Brand | Common Heavy Equipment Use | Crankshaft-Related Parts | Identification Details | Customer Search Keywords | Quotation Guidance |
|---|
| Caterpillar Engines | CAT excavators, loaders, dozers, graders and power units | Crankshaft, main bearings, rod bearings, thrust washers, crankshaft seals | Engine arrangement number, engine serial number, machine serial number | Caterpillar engine crankshaft, CAT diesel crankshaft, CAT excavator crankshaft | Engine arrangement number is very important for accurate cross-reference |
| Komatsu Engines | Komatsu excavators, loaders, dozers and mining equipment | Crankshaft, bearing set, thrust washer, oil seal, crank gear | Engine model, engine serial number, Komatsu machine model | Komatsu engine crankshaft, Komatsu PC200 crankshaft, Komatsu PC400 crankshaft | Check engine model and serial number before quotation |
| Cummins Engines | Excavators, loaders, generators, trucks and industrial machines | Crankshaft, main bearing, rod bearing, thrust washer, vibration damper | Engine serial number, CPL number, crankshaft part number | Cummins crankshaft for excavator, Cummins diesel engine crankshaft | CPL number and engine serial number help prevent wrong selection |
| Isuzu Engines | Hitachi and other excavator applications | Crankshaft, bearing set, crankshaft seal, thrust washer | Engine model, serial number, injection system type | Isuzu excavator crankshaft, Hitachi Isuzu engine crankshaft | Engine plate photo is strongly recommended |
| Mitsubishi Engines | Excavators, loaders, forklifts and industrial machinery | Crankshaft, bearings, oil seals, crankshaft gear | Engine series, serial number and reference number | Mitsubishi diesel crankshaft, excavator Mitsubishi engine crankshaft | Exact engine series must be checked before quotation |
| Volvo Engines | Volvo excavators, loaders and haulers | Crankshaft, bearing set, thrust washer, crankshaft seal | Volvo engine model, machine serial number, emission stage | Volvo engine crankshaft, Volvo EC480 crankshaft | Emission stage and engine model can affect compatibility |
| Deutz Engines | Construction machinery and industrial applications | Crankshaft, bearing set, crankshaft seals, thrust washers | Engine model and engine serial number | Deutz crankshaft, Deutz diesel engine crankshaft | Engine serial number is required for accurate part matching |
| Perkins Engines | JCB and various construction machines | Crankshaft, bearings, seals, thrust washers, pulley components | Engine type, build list and serial number | Perkins crankshaft, JCB Perkins engine crankshaft | Build list is very useful for correct crankshaft identification |
| Yanmar Engines | Mini excavators and compact construction equipment | Small diesel crankshaft, bearings, seals and overhaul parts | Engine model and serial number | Yanmar mini excavator crankshaft, compact excavator crankshaft | Suitable for compact excavator and small engine requests |
| Hino Engines | Excavators, trucks and industrial diesel machinery | Crankshaft, bearing set, oil seal, crankshaft gear | Engine model, serial number and part code | Hino diesel crankshaft, excavator Hino engine crankshaft | Part number and engine model should be confirmed |
Technical Selection Guide
How to Identify the Correct Crankshaft
Correct crankshaft selection is critical for engine reliability. Even small dimensional differences can cause bearing failure, low oil pressure, vibration, installation problems or complete engine damage.
Required Information for Crankshaft Quotation
- Machine brand and model
- Machine serial number, if available
- Engine brand and engine model
- Engine serial number or engine nameplate photo
- OEM reference part number, if available
- Crankshaft photos from front, rear and journal areas
- Main journal and rod journal measurements
- Standard or undersize bearing requirement
- Quantity and destination country
Important Technical Checks
- Confirm standard, 0.25, 0.50 or other undersize bearing requirement
- Check crankshaft journal diameter and width
- Verify thrust washer location and size
- Check front pulley and rear flywheel connection
- Confirm oil hole positions and lubrication channels
- Check crankshaft gear compatibility
- Compare engine serial number and engine arrangement
- Inspect related bearing damage before installation
Professional Recommendation
When replacing a crankshaft, it is strongly recommended to replace the main bearings, connecting rod bearings, thrust washers, front and rear crankshaft seals, and to inspect the oil pump and lubrication system. A new crankshaft installed with incorrect bearings or poor oil pressure can fail quickly.Related Engine Parts
Crankshaft Replacement and Engine Overhaul Components
Crankshafts are usually ordered together with other engine rebuild parts. NG can evaluate complete engine overhaul packages for heavy equipment engines according to engine model and part number list.
| Related Part | Why It Is Important | Recommended During Crankshaft Replacement | Information Required | Common Search Keywords | Internal SEO Opportunity |
|---|
| Main Bearing Set | Supports crankshaft rotation inside the engine block | Always check and usually replace with crankshaft | Standard or undersize measurement, engine model | excavator main bearing set, diesel engine main bearings | /excavator-engine-bearing-sets/ |
| Connecting Rod Bearing Set | Connects crankshaft journals to connecting rods under high load | Strongly recommended during crankshaft replacement | Rod journal size, bearing size, engine code | excavator rod bearings, connecting rod bearing set | /excavator-rod-bearing-sets/ |
| Thrust Washer | Controls crankshaft axial movement | Recommended when crankshaft end play is out of limit | Engine model and thrust washer size | diesel engine thrust washer, excavator thrust bearing | /diesel-engine-thrust-washers/ |
| Crankshaft Oil Seal | Prevents front and rear engine oil leakage | Recommended whenever crankshaft is removed | Front or rear seal, diameter, engine model | crankshaft oil seal, excavator engine oil seal | /excavator-engine-oil-seals/ |
| Oil Pump | Provides lubrication pressure to crankshaft and bearings | Must be inspected after bearing or crankshaft failure | Engine model, oil pressure history, part number | excavator oil pump, diesel engine oil pump | /excavator-oil-water-pumps/ |
| Engine Overhaul Kit | Combines internal engine parts for complete rebuild | Useful when crankshaft damage is part of a larger engine failure | Engine model, rebuild scope, standard or oversize details | excavator engine overhaul kit, diesel engine rebuild kit | /excavator-engine-overhaul-kits/ |
Why NG Attachments
Why Choose NG for Construction Equipment Crankshafts?
Heavy Equipment Focus
NG works with excavators, loaders, hydraulic systems, attachments and construction machinery. This allows NG to support crankshaft requests with a heavy equipment spare parts perspective.Part Number Based Quotation
Customers can send OEM reference numbers, engine model, machine model, engine serial number and photos for aftermarket crankshaft quotation.Multi-Brand Coverage
NG can evaluate crankshafts for CAT, Komatsu, Volvo, Hitachi, Hyundai, Doosan, Develon, JCB, Liebherr, Kobelco, Case, Sany, XCMG and Hidromek machines.Engine Rebuild Support
Crankshaft requests can be combined with engine bearings, pistons, liners, gasket kits, seals and other diesel engine overhaul components.Export from Turkey
NG supports international customers with professional quotation, packaging and delivery options from Turkey for construction equipment spare parts.Fleet and Dealer Supply
Contractors, spare parts dealers and service companies can send repeated crankshaft and engine parts lists for mixed heavy equipment fleets.Internal Links
Related NG Engine and Heavy Equipment Spare Parts Pages
This crankshaft page should be linked under the main engine parts and heavy equipment spare parts categories. It also supports future subpages for bearings, overhaul kits, oil seals, pistons and other engine rebuild components.
Explore Related Spare Parts Categories
FAQ
Frequently Asked Questions About Construction Equipment Crankshafts
Does NG supply genuine OEM crankshafts?
NG Attachments supplies aftermarket crankshafts and spare parts solutions. Brand names, machine models and OEM reference numbers are used only for compatibility identification.Can NG quote crankshafts by part number?
Yes. Customers can send OEM reference numbers, engine model, machine model, engine serial number and quantity. Engine nameplate photos are strongly recommended.Which machines can NG supply crankshafts for?
NG can evaluate crankshaft requests for excavators, wheel loaders, dozers, graders, material handlers, mining machines and other construction equipment engines.Why is bearing size important for crankshaft replacement?
Crankshafts must be matched with the correct standard or undersize main bearings and rod bearings. Incorrect bearing size can cause oil pressure loss, vibration and engine failure.Can NG supply bearings together with crankshafts?
Yes. Crankshaft quotations can be combined with main bearings, connecting rod bearings, thrust washers, oil seals, gasket kits and overhaul parts.What is the fastest way to request a crankshaft quotation?
Send the engine nameplate photo, machine model, engine model, crankshaft part number, photos of the existing crankshaft and required quantity by email or WhatsApp.Send Your Construction Equipment Crankshaft Request to NG Attachments
Share your machine model, engine model, crankshaft part number, engine serial number, photos or measurements. NG will evaluate your request and prepare an aftermarket crankshaft quotation from Turkey.
Trademark Disclaimer: Caterpillar®, CAT®, Komatsu®, Volvo®, Hitachi®, Hyundai®, Doosan®, Develon®, JCB®, Liebherr®, Kobelco®, Case®, Sany®, XCMG®, Hidromek® and all related model names, engine names, part numbers and trademarks are the property of their respective owners. NG Attachments is not affiliated with, sponsored by, endorsed by or authorized by these brands or their authorized dealers. All brand names, machine models, engine models and OEM reference numbers are used only for compatibility identification and reference purposes. NG Attachments supplies aftermarket replacement parts, crankshaft supply solutions and heavy equipment spare parts support.
