STIHL 4140-710-7120 Kombi Inner Outer Engine Drive Shaft KM91R KM90 130 131

( Brand: Stihl ), ( Manufacturer Part Number: 4140-710-7120 ), ( Model: KM91R KM131R KM90R KM56R KM130R KM85R KM110R KM111R KM94R ), ( Power Source: Gasoline ), ( Year Manufactured: 2025 ), ( Compatible Product: Brush Cutter, String Trimmer, Multi Task Trimmer ), ( Item Length: 30 In ), ( Engine Type: 2-stroke ), ( Capacity: 1 L ), ( Horsepower: Various ), ( Engine Size: 28cc 42cc ), ( Item Height: 1 In ), ( Style: Modern ), ( Item Width: 0.25 ), ( Compatible Brand: For Stihl ), ( Color: Multicolor ), ( Item Diameter: 0.25 In ), ( Compatible Model: Km91r Km131r Km90r Km56r Km130r Km85r Km110r Km111r Km94r, Fs90r Fs91r, Fs100rx, Fs111rx, Fs110r, Fs111r, Fs130r, Fs131r ), ( Material: Metal, Plastic ), ( Type: Drive Shaft ), ( Assembly Required: No ), ( Country Of Origin: Germany ), ( Power: Mixed Fuel ), ( Item Weight: 1 Lb )

Review STIHL Kombi Inner And Outer Engine Side Drive Shaft 130 131 More Oem

The **STIHL 4140-710-7120 Kombi Inner and Outer Engine Drive Shaft Set (KM90, KM91, 130, 131)** is a precision-engineered replacement component designed to restore peak performance and reliability to STIHL s KM90, KM91, 130, and 131 series chainsaws. This high-quality shaft assembly combines a robust inner drive shaft with a durable outer drive shaft, both crafted from hardened, corrosion-resistant steel to withstand the demanding conditions of professional and homeowner use. The inner shaft features a smooth, low-friction design optimized for efficient power transfer from the engine to the chain, minimizing wear on the clutch and sprocket while reducing vibration for a quieter, more comfortable operation. The outer shaft, meanwhile, is engineered to maintain perfect alignment with the inner shaft, ensuring consistent chain engagement and preventing premature degradation of the drive system. This Kombi set is a direct-fit replacement, meticulously calibrated to match the original equipment specifications of STIHL s KM series chainsaws, eliminating the need for adjustments or modifications. Whether used in forestry applications, landscaping, or general woodworking, this shaft assembly enhances the chainsaw s longevity by reducing internal stress on critical components, ultimately extending the life of the entire drive system. Built to STIHL s rigorous standards, it delivers the durability and performance expected from a brand synonymous with precision engineering, making it an indispensable upgrade for users seeking to maintain their chainsaw s efficiency and reliability over time.

### **Pros and Cons of buying a Stihl 4140-710-7120 Kombi Inner/Outer Engine Drive Shaft (KM90/KM91, 130/131 Models)**

1. **Compatibility with Multiple Stihl Models** This drive shaft is designed to work with a range of Stihl chainsaws, including the KM90, KM91, 130, and 131 models. This makes it a versatile upgrade or replacement part for owners of these specific chainsaws.

2. **Durability and Quality** Stihl is known for manufacturing high-quality, long-lasting components. The Kombi drive shaft is built to withstand heavy use, reducing the risk of premature failure.

3. **Easy Installation** The Kombi design simplifies the process of replacing both the inner and outer drive shafts simultaneously, saving time compared to purchasing separate parts.

4. **Performance Consistency** A well-maintained drive shaft ensures smooth operation, reducing vibration and improving chainsaw performance, which can enhance cutting efficiency and user comfort.

5. **Warranty Coverage** Stihl products often come with manufacturer warranties, providing some level of protection against defects in materials or workmanship.

6. **Cost-Effective for Owners of Multiple Models** If you own more than one of the compatible Stihl chainsaws, purchasing this Kombi shaft can be more economical than buying separate inner and outer shafts for each saw.

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1. **Limited Compatibility** This drive shaft is **only** designed for the KM90, KM91, 130, and 131 models. If you own a different Stihl chainsaw, this part will not fit, which may limit its usefulness for some buyers.

2. **Potential for Counterfeit Parts** Since Stihl is a premium brand, there is a risk of purchasing counterfeit or low-quality aftermarket parts that may not meet Stihl s standards. Always buy from authorized dealers or reputable suppliers to avoid this issue.

3. **Replacement Cost** While the Kombi shaft is a cost-effective solution for compatible models, the price may still be higher than generic or non-Stihl alternatives. However, these alternatives may not offer the same durability or performance.

4. **Installation Skill Required** While the Kombi design simplifies the process, improper installation can still lead to damage or reduced performance. Users unfamiliar with chainsaw maintenance may need professional assistance.

5. **Wear and Tear Over Time** Like all mechanical parts, drive shafts will eventually wear out, especially with heavy or prolonged use. Regular maintenance (such as lubrication and inspection) is necessary to extend their lifespan.

6. **Availability and Lead Times** Depending on the region, Stihl parts may not always be readily available, and lead times for shipping could delay repairs or upgrades.

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The **Stihl 4140-710-7120 Kombi Inner/Outer Engine Drive Shaft** is a **strong, reliable, and convenient upgrade** for owners of the KM90, KM91, 130, and 131 chainsaws. Its **versatility, durability, and ease of installation** make it a practical choice for those who need to replace or upgrade their drive shaft. However, its **limited compatibility** means it is only useful for specific Stihl models, and buyers must ensure they are purchasing an **authentic part** to avoid quality issues.

If you own one of the compatible models and require a **direct replacement or upgrade**, this Kombi shaft is a **recommended purchase**. For other Stihl models or budget-conscious buyers, exploring alternative options (while considering trade-offs in quality) may be necessary.

- **Buy it if:** You own a KM90, KM91, 130, or 131 Stihl chainsaw and need a reliable, easy-to-install drive shaft.

- **Avoid it if:** You have a different Stihl model or are looking for a cheaper, non-Stihl alternative.

- **Best Practice:** Purchase from an **authorized Stihl dealer** to ensure authenticity and warranty coverage. Follow proper installation and maintenance procedures to maximize longevity.

Details:

Un-Used Genuine OEM Parts. Replacement For model's KM90R KM91R KM110R KM111R KM130R KM131R KM85R KM94R KM55R KM56R. This Portion Goes From The Engine To Couplet. Ships Quickly Packaged W/ Care.

STIHL Engine Side, Inner Outer Drive Shaft Assembly For Kombi KM Multi-Task Trimmers. Feel Free To Reach Out W/ Any Questions. Can Also Repurposed An Engine Power head, As It Fits Various Other model's Such FS90R FS91R FS111RX FS100RX FS111R FS110R FS130R FS131R FS94R FS250R FS80R HT131 HT101 HT103 HT133 HT135 HT132 HT100 FC90 FC91 FC96 FC95 FC110 FC111 HL110 HL130 More If Your model Isn't Listed Just Reach Out To Ask, This Solid Inner Multi Task Shaft Assembly Is designed W/ Durable Components, For Use Beyond A Standard String Head, Accept Many Gear head Attachments Brush Cutter, Pole Saw, Edger, Bed Definer, Head Clipper, Tiller, Blower, Power Sweeper/Broom.

part #: 41407107120 prices

• $12.72-$184.95

specifications strintri:

• brand: Stihl
• mpn: 4140-710-7120
• model: Km91r Km131r Km90r Km56r Km130r Km85r Km110r Km111r Km94r
• power source: Gasoline
• year manufactured: 2025
• compatible product: Brush Cutter, String Trimmer, Multi Task Trimmer
• item length: 30 In
• engine type: 2-stroke
• capacity: 1 L
• horsepower: Various
• engine size: 28cc 42cc
• item height: 1 In
• style: Modern
• item width: 0.25
• compatible brand: For Stihl
• color: Multicolor
• item diameter: 0.25 In
• compatible model: Km91r Km131r Km90r Km56r Km130r Km85r Km110r Km111r Km94r, Fs90r Fs91r, Fs100rx, Fs111rx, Fs110r, Fs111r, Fs130r, Fs131r
• material: Metal, Plastic
• type: Drive Shaft
• assembly required: No
• country of origin: Germany
• power: Mixed Fuel
• item weight: 1 Lb

payments strintri:

• wallet: Google-pay
• credit card: Discover
• other

general strintri:

• condition: Used
• Yard, Garden Outdoor Living > Outdoor Power Equipment > String Trimmer Parts

seller strintri:

• # reviews: 1501
• rating: 99.4%
• city: Mission, Kansas

offer strintri:

• options: Ship-to-home
• sold: 0
• availability: In Stock
• quantity: 4
• started: March 11, 2026

returns strintri:

• time: 30 Days
• policy: Returns Accepted
• method: Money back
• paid by: Buyer

shipping strintri:

• transit: 5-10 Days
• carrier: USPS, UPS
• type: Fixed
• cost: $15.95
• service: USPS Ground Advantage, UPS Ground
• class: Standard

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