125cc 4-Stroke Engine Motor Kit for Honda CRF50 XR50 Z50 Pit Bike
This new 125cc 4-stroke engine motor kit is listed for Honda CRF50, XR50, and Z50 dirt or pit bike applications. It’s suitable for buyers looking to replace or rebuild an existing engine setup; check the listing for details on what is included in the kit, compatibility notes, and any required hardware or modifications. Condition is New. Shipping is Free Shipping, and the listed price is 174.16 USD. Review the listing photos and description to confirm fitment for your specific model and year before purchase.
| Location | Monroe Township US |
| Shipping | Free shipping (check listing for details) |
| Seller |
labwork-parts
98.7% positive · 16534 feedback
|
| Listing | FixedPrice · Active |
| Start time | 2025-12-10T02:20:42.000Z |
| Brand | labwork |
| Manufacturer Part Number | LP575352KS |
| Manufacturer Warranty | 1 Year |
| Bore & Stroke | 54 X 54mm |
| Compression ratio | 9.47:1 |
| Displacement | 123.7cc |
| Max. HP | 8.72 HP @ 7,500 RPM |
| Max. Torque | 8.0N.m @ 5,500 RPM |
| Idle | 1,500 RPM |
| Starter | Kick Start |
| Ignition system | CDI (Capacitive Discharge Ignition) |
| Measurements | 18 1/4" x 11" x 11" |
| Clutch | manual clutch-wet |
| Gear Ratios | 2.833/1.706/1.238/0.958 |
| Voltage | 12 V |
| Sprocket | 428 15T 17mm |
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Brand New and High QualityWarranty: 1 YearQuantity Sold: 15Model:1P54FMI-KShift Model: 1 0 2 3 4Type: Single cylinder, 4-stroke with air-cooled, and clutch operated by handBore×Stroke: 52.4×55.5 mmDisplacement: 119.7 mlCompression Ratio: 9.0:1Max Power: 6.5 kW/7500r/min±375r/minRated Power: 5.6 kW/7500r/min±375r/minMax Torque: 8.0 Nm/5000r/min±250r/minIdle Speed: 1500r/min±100r/minMin Fuel Consumption: ≤367g/kw.hIgnition System: CDIStart Mode: Kick-starter Labwork-parts > > table img 125cc 4 Stroke Engine Motor Kit Dirt Pit Bike For Honda CRF50 XR50 Z50 Product Description: SpecificationsItem Type: EngineCondition: 100%
Brand New and High QualityWarranty: 1 YearQuantity Sold: 15Model:1P54FMI-KShift Model: 1 0 2 3 4Type: Single cylinder, 4-stroke with air-cooled, and clutch operated by handBore×Stroke: 52.4×55.5 mmDisplacement: 119.7 mlCompression Ratio: 9.0:1Max Power: 6.5 kW/7500r/min±375r/minRated Power: 5.6 kW/7500r/min±375r/minMax Torque: 8.0 Nm/5000r/min±250r/minIdle Speed: 1500r/min±100r/minMin Fuel Consumption: ≤367g/kw.hIgnition System: CDIStart Mode: Kick-starterSpark Plug: A7TCClutch: Wet multi-plateTransmission:4-speed, Manual clutch,4 UpCarburetor Type: PZ16JPrimary Reduction Ratio:3.722Gear Ratio:2.833/1.706/1.238/0.958Lubricant Capacity: 900 mlLubricant: SAE15W/40-SE, 4-stroke gasoline engine oilEngine Dimensions: 470×275×280 mm Fitment:For HONDA CRF50 / CRF70 / XR50 / XR70 / Z50 / Z50R / CT70 Mini Trail / Z50 / Minitrail Monkey / XL70 ST70 / QA50 / QR50 / CL70 / SL70 / 70 Passport / ST 90K2 / ST 90K1 / CS 90 / SL 90 / ZB 50 /Please note this is not a guarantee, if you are unsure, please ask your local dealer. Package Included:1x 125CC 1P52FMI ENGINE1x Kick Starter Lever1x Gear Shift Lever1x Intake Manifold2x Intake GasketsThis engine has a three disc crank mounted heavy duty manual clutch. The head has a large domed combustion chamber with large valves. The intake valve is 27mm exhaust valve is 23mm.This engine must be a neutral to start with a kick starter.This engine does not come equipped with an ignition system (CDI). Additionally, all engines undergo an oil-draining process before leaving our factory. Therefore, without an ignition system and with no oil remaining inside the engine, you will need to add engine oil (4T oil) during the initial setup after purchase. table#Attrid511280 table#Attrid511280 tr:last-child td:last-child table#Attrid511280 tr:last-child td:first-child table#Attrid511280 tr:nth-of-type(1n) table#Attrid511280 tr:nth-of-type(2n) table#Attrid511280 td table#Attrid511280 table#Attrid511280 td:first-child Item Specifics
Brand labworkManufacturer Part Number LP575352KSCondition NewWarranty 1 YearBore & Stroke 54 X 54mmCompression ratio 9.47:1Displacement 123.7ccMax. HP 8.72 HP @ 7,500 RPMMax. Torque 8.0N.m @ 5,500 RPMIdle 1,500 RPMStarter Kick StartIgnition system CDI (Capacitive Discharge Ignition)Measurements 18 1/4" x 11" x 11"Clutch manual clutch-wetGear Ratios 2.833/1.706/1.238/0.958Voltage 12 VSprocket 428 15T 17mm Payment 1. We accept payment by any of the following methods: PayPal, afterpay, VISA, Google pay, mastercard, AMEX, apple pay, DISCOVER. 2. Please pay as soon as possible after winning an auction, as that will allow us to post your item to you sooner! 3. Please make sure your Ebay address is correct before you pay, cause it cannot be changed once the order shipped out.Shipping 1. Item will be shipped out within 1-3 business day after clear payment received. 2. We'll ONLY ship the item to your Ebay Confirmed Address, so please make sure your shipping address is correct before you buy item . 3. Order placed on weekend or holiday will be shipped on Monday or next working day. 4. Please feel free to contact us by email if you cannot get your order in time. Terms of sales 1. Return to us within 30 days from the delivery date for exchange or refund. 2. Please feel free to contact us before you return your package! About us 1.We are an honest and hard-working seller on eBay, We do not want to bring bad experience for our customers! 2. Please give us an opportunity to solve when the problem exist, We will do our best effort to serve you.Contact us 1.If you are not satisfied with our product or our Service,please feel free to contact us immediately BEFORE you leave neutral or negative feedback, we will try our best to resolve any problem and make you satisfied. 2.we will reply you within 1 business day. (not include Public holiday) 3.Work Hours: Monday to Friday. 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light Trim USD 132.98 125cc 4 Stroke Engine Motor Kit Dirt Pit Bike For Honda CRF50 XR50 Z50 > img Product Description: SpecificationsItem Type: EngineCondition: 100%
Brand New and High QualityWarranty: 1 YearQuantity Sold: 15Model:1P54FMI-KShift Model: 1 0 2 3 4Type: Single cylinder, 4-stroke with air-cooled, and clutch operated by handBore×Stroke: 52.4×55.5 mmDisplacement: 119.7 mlCompression Ratio: 9.0:1Max Power: 6.5 kW/7500r/min±375r/minRated Power: 5.6 kW/7500r/min±375r/minMax Torque: 8.0 Nm/5000r/min±250r/minIdle Speed: 1500r/min±100r/minMin Fuel Consumption: ≤367g/kw.hIgnition System: CDIStart Mode: Kick-starterSpark Plug: A7TCClutch: Wet multi-plateTransmission:4-speed, Manual clutch,4 UpCarburetor Type: PZ16JPrimary Reduction Ratio:3.722Gear Ratio:2.833/1.706/1.238/0.958Lubricant Capacity: 900 mlLubricant: SAE15W/40-SE, 4-stroke gasoline engine oilEngine Dimensions: 470×275×280 mm Fitment:For HONDA CRF50 / CRF70 / XR50 / XR70 / Z50 / Z50R / CT70 Mini Trail / Z50 / Minitrail Monkey / XL70 ST70 / QA50 / QR50 / CL70 / SL70 / 70 Passport / ST 90K2 / ST 90K1 / CS 90 / SL 90 / ZB 50 /Please note this is not a guarantee, if you are unsure, please ask your local dealer. Package Included:1x 125CC 1P52FMI ENGINE1x Kick Starter Lever1x Gear Shift Lever1x Intake Manifold2x Intake GasketsThis engine has a three disc crank mounted heavy duty manual clutch. The head has a large domed combustion chamber with large valves. The intake valve is 27mm exhaust valve is 23mm.This engine must be a neutral to start with a kick starter.This engine does not come equipped with an ignition system (CDI). Additionally, all engines undergo an oil-draining process before leaving our factory. Therefore, without an ignition system and with no oil remaining inside the engine, you will need to add engine oil (4T oil) during the initial setup after purchase. table#Attrid511284 table#Attrid511284 tr:last-child td:last-child table#Attrid511284 tr:last-child td:first-child table#Attrid511284 tr:nth-of-type(1n) table#Attrid511284 tr:nth-of-type(2n) table#Attrid511284 td div table#Attrid511284 table#Attrid511284 td:first-child table#Attrid511284 td Item Specifics
Brand :labworkManufacturer Part Number :LP575352KSCondition :NewWarranty :1 YearBore & Stroke :54 X 54mmCompression ratio :9.47:1Displacement :123.7ccMax. HP :8.72 HP @ 7,500 RPMMax. Torque :8.0N.m @ 5,500 RPMIdle :1,500 RPMStarter :Kick StartIgnition system :CDI (Capacitive Discharge Ignition)Measurements :18 1/4" x 11" x 11"Clutch :manual clutch-wetGear Ratios :2.833/1.706/1.238/0.958Voltage :12 VSprocket :428 15T 17mm main section input label label:hover input:checked + label ~ , ~ , ~ , ~ , ~ PaymentShippingTerms of salesAbout usContact us .sold_tab label .sold_tab label:last-of-type 1. We accept payment by any of the following methods: PayPal, afterpay, VISA, Google pay, mastercard, AMEX, apple pay, DISCOVER. 2. Please pay as soon as possible after winning an auction, as that will allow us to post your item to you sooner! 3. Please make sure your Ebay address is correct before you pay, cause it cannot be changed once the order shipped out. 1. Item will be shipped out within 1-3 business day after clear payment received. 2. We'll ONLY ship the item to your Ebay Confirmed Address, so please make sure your shipping address is correct before you buy item . 3. Order placed on weekend or holiday will be shipped on Monday or next working day. 4. Please feel free to contact us by email if you cannot get your order in time. 1. Return to us within 30 days from the delivery date for exchange or refund. 2. Please feel free to contact us before you return your package! 1.We are an honest and hard-working seller on eBay, We do not want to bring bad experience for our customers! 2. Please give us an opportunity to solve when the problem exist, We will do our best effort to serve you. 1.If you are not satisfied with our product or our Service,please feel free to contact us immediately BEFORE you leave neutral or negative feedback, we will try our best to resolve any problem and make you satisfied. 2.we will reply you within 1 business day. (not include Public holiday) 3.Work Hours: Monday to Friday. All rights reserved. On Dec 11, 2025 at 22:50:58 PST, seller added the following information:.dc_tracker_img .dc_tracker_img:last-of-type p:empty+hr hr+span.ebay,hr+*>span.ebay

