KRP3120 is a Perkins main bearing kit for 2206 diesel engines, used in engine overhaul, bottom-end repair and crankshaft-related maintenance.
It is commonly relevant to Perkins 2206 generator and industrial engine applications.
For a correct replacement, the engine configuration should be confirmed before ordering. If the crankshaft has been machined or reground, the required bearing size should also be checked.
List of compatible engine models
| Engine Model | Build List | Part Number | Application |
|---|---|---|---|
| 2206D-E13TA | PK3S0001-PK3S0017 | KRP3120 | Combine harvester |
| 2206F/J-E13TA | PP3S0004-PP3S0010 | KRP3120 | Combine harvester |
| 2206A/C/D-E13TAG2 (13 litre) | TGBF0001-TGBF8221 | KRP3120 | Generating set |
| 2206A/C/D-E13TAG3 (13 litre) | TGDF0002-TGDF8025 | KRP3120 | Generating set |
| 2206A-E13TAG5 (13 litre) | TGFF2002-TGFF8022 | KRP3120 | Generating set |
| 2206A-E13TAG6 (13 litre) | TGHF0001-TGHF7250 | KRP3120 | Generating set |
KRP3120 is the STD (standard) bearing size. If the engine is undergoing a rebuild and the crankshaft has already been reground, the required bearing size may be different. Do not select the bearing size only from the engine model.
For engines that have been rebuilt or machined, we recommend confirming:
Crankshaft journal measurements
Previous bearing size
Existing part number
Engine repair records
This helps prevent ordering a standard bearing when an undersize bearing is required.
More Main Bearing in stock as below
| U5MB0036C | 198586060 |
| U5MB0030 | 198586080 |
| U5MB0030B | 040136004 |
| U5MB0015 | 198586010 |
| T427323 | 85036A |
| 1822321C91 | U5MB0015A |
| 1823843C91 | U5MB0035B |
| U5MB0026 | U5ME0012A |
| 2645L304 | U5ME0023 |
| 1830725C91 | U5ME0033A |
| 1830726C91 | U5ME0035B |
| U5MB0025 | T427328 |
| KRP3106/010 | KRP3106 |
ZEB Power offers main bearing for the Perkins 403, 404, 1103, 1104, 1106, 1204, 1306, 1506, 1706, 2206, 2506, 2806, 4006, 4008, 4012, and 4016 series, among others.
If you cannot find the main bearing you need in the list, please send us the engine nameplate or part number, and we will verify it for you.
Ensure Correct Perkins Bearing Kit Before Ordering
Selecting the wrong bearing kit may cause installation issues and unexpected downtime. Before quotation, our team verifies your engine information to ensure correct compatibility.
Verification includes:
✔ Engine serial number (ESN)
✔ Engine build list
✔ Existing part number (New number)
✔ Bearing specification

KRP3120 for Perkins 2206 Engine Overhaul
KRP3120 is typically relevant when a Perkins 2206 engine is being overhauled or repaired.
Depending on the engine condition, a 2206 overhaul may also require:
Big End Bearing Kit, Thrust Washers, Piston Ring Kit, Cylinder Liners, Gasket Kit, Oil Seals, Water Pump, Oil Pump Other engine-specific parts
If you already have a Perkins 2206 overhaul parts list, send it to us together with the engine information.
We can check the part numbers and quantities instead of quoting the parts individually without confirming the engine configuration.
Procurement and Logistics
Genuine Perkins OEM parts supplied in partnership with an authorized Perkins first-tier distributor. Stock is sourced from Perkins warehouses in China, Singapore, and the United Kingdom, enabling competitive lead times across Africa, the South Amercia, Southeast Asia, and CIS markets. Original purchase invoices and certificates of authenticity available upon request.
Sourcing
· Genuine Perkins OEM · First-Tier Distributor Partner
· Warehouse locations: China · Singapore · United Kingdom
Lead Time
· Standard: 7–10 days from order confirmation
· Urgent orders: 3–5 days subject to warehouse stock availability
· Large volume orders: contact us to discuss dedicated stock arrangement
Trade Terms
· FOB · CIF · DDP · EXW
· Payment: T/T · L/C
· MOQ: 1 unit
Export Documentation
· Commercial Invoice · Packing List · Certificate of Origin
· Additional documentation requirements: notify us at time of inquiry


Warranty and After-Sales Service
Coverage
All parts carry a 12-month warranty from the date of shipment, covering manufacturing defects in materials and workmanship. Incorrect shipments (wrong part number or specification against confirmed order) are covered in full — replacement arranged at no additional cost with return freight covered by ZEB Power.
Exclusions
Warranty does not cover:
· Normal wear and tear under operating conditions
· Damage resulting from incorrect size selection or incompatible engine configuration
· Improper installation, including failure to observe Perkins specified torque values
· Use of non-recommended lubricants or contaminated oil
· Operation outside rated parameters
Claim Process
Contact us with ESN, Build List, installation date, and a description of the issue. Photo documentation of the failed part is required. Approved claims are fulfilled by replacement; return freight is covered by ZEB Power. Replacement is dispatched upon claim approval — typically within 5 working days of assessment.
Transit Damage Protocol
Inspect packaging upon receipt. If external packaging appears intact but internal damage is found upon unpacking, photograph both the packaging and the damaged part immediately and contact us within 48 hours of delivery (including weekends and public holidays). Cases of concealed transit damage are handled on a case-by-case basis — partial compensation or subsidized replacement will be arranged subject to photo evidence and carrier assessment.
FAQ
Q1: What is Perkins KRP3120?
KRP3120 is a Perkins main bearing kit for selected 2206 engine configurations.
Q2: What engine does KRP3120 fit?
KRP3120 is associated with the Perkins 2206 engine family, including Build list such as TGB, TGD, TGF and TGH.
For final fitment, we recommend confirming the engine model, ESN and Build list.
Q3: Is KRP3120 a standard-size main bearing?
Yes. KRP3120 is listed as STD (standard) size.
If the crankshaft has been reground, the required repair size should be confirmed before ordering.
Q4: How many bearings are included in KRP3120?
KRP3120 is specified as a 6-pairs-per-kit main bearing kit in Perkins 2206 procurement documentation.
Q5: What is the difference between KRP3120 and KRP3023?
KRP3120 is the main bearing kit. KRP3023 is the big end bearing kit.
Both can be required during a Perkins 2206 engine overhaul, depending on the repair scope.
Q6: Do I need to provide the ESN to order KRP3120?
We strongly recommend it. The ESN or Build List helps confirm the exact engine configuration and reduce the risk of ordering the wrong bearing.
Q7: What if my Perkins 2206 crankshaft has been reground?
Tell us the crankshaft repair size or provide the journal measurements. Do not assume that STD KRP3120 is correct after crankshaft machining.
Q8: Can you supply other Perkins 2206 overhaul parts?
Yes. Send us the complete parts list and the engine information. We can check the required part numbers and quantities for the overhaul.
Q9: Can you provide product photos before shipment?
Yes. Product and packing photos can be provided before shipment for order confirmation.
Contact For Inquiry
To receive a quote, provide the following:
ESN (Engine Serial Number) · Part Number · Quantity required · Destination port and required documentation
Quote turnaround: within 24 hours.
Not sure of your Build List or crankpin condition? Send a photo of your engine nameplate and describe the symptoms — we will confirm the correct part and size for your engine.