Oleo-Mac GS520 Genuine Oil Pump 50170051BR Adjustable Flow For EFCO MT4110 MT4400 MT4510 MT5200 147 152 OLEO-MAC GS411 GS440 GS451 952 40-50cc Chainsaw

Brand: Emak/Oleo-Mac/Efco
Product Code: 3103001GA*50170051
MPN: eMak 50170051AR
MPN: eMak 50170051A
MPN: eMak 50170051BR
Availability: In Stock

$42.00
$29.00
Ex Tax: $29.00
10 or more $26.00

Control Your Oil Flow. Genuine OEM Adjustable Oil Pump Replacement For OLEO-MAC Chainsaws.

OLEO-MAC GS520 Genuine Oil Pump 50170051BR Adjustable Flow For EFCO MT4110 MT4400 MT4510 MT5200 147 152 40-50cc Chainsaw

Genuine OLEO-MAC oil pump part number 50170051BR with adjustable oil flow design. Engineered for OLEO-MAC GS520, GS411, GS440, GS451, 952 and EFCO MT4110, MT4400, MT4510, MT5200, 147, 152 chainsaws in the 40cc to 50cc range. This adjustable-flow pump lets you dial in the perfect oil output for different bar lengths and cutting conditions. Direct replacement, no modifications required.

⚙️ OEM#: 50170051BR · Adjustable Flow · Genuine · Direct Fit

✅ Authorised Dealer& Genuine Parts Supplier

✨ Product Highlights

🔧

Genuine OEM Part

Factory-spec 50170051BR

⚙️

Adjustable Oil Flow

Dial in perfect lubrication

💧

Custom Lubrication

Adapts to bar length & task

🏭

Professional Grade

Trusted by repair pros

Product demo — OLEO-MAC GS520 Genuine OEM 50170051BR Adjustable Oil Pump

⚙️ Product Specifications

OEM NUMBER

• 50170051BR
• Genuine OLEO-MAC

PART TYPE

• Oil Pump
• Adjustable Flow Design

SPECIFICATIONS

• For 40cc to 50cc Engines
• Manual Flow Adjustment

CONDITION

• Brand New
• Genuine OEM Quality

📷 Product Images

OLEO-MAC GS520 Genuine Oil Pump 50170051BR adjustable flow main view

Main View — Genuine OLEO-MAC 50170051BR Adjustable Oil Pump

OLEO-MAC GS520 oil pump detail view adjustment screw and drive shaft

Detail View — Adjustment Screw & Drive Shaft

✅ Compatible Applications

This oil pump fits the following OLEO-MAC and EFCO chainsaws:

🛠 OLEO-MAC Models

• OLEO-MAC GS411
• OLEO-MAC GS440
• OLEO-MAC GS451
• OLEO-MAC GS520
• OLEO-MAC 952

🔧 EFCO Models

• EFCO MT4110
• EFCO MT4400
• EFCO MT4510
• EFCO MT5200
• EFCO 147 / 152

📋 Engine Range

• 40cc to 50cc Class
• Verify OEM# 50170051BR

⚠️ Not sure if it fits? Contact us with your machine model & engine code

🔁 Looking for the Fixed Flow Version?
This same oil pump is also available in a fixed flow version (OEM# 50180007BR) for smaller 35-45cc OLEO-MAC GS370 / EFCO MT3700 class machines. If your saw uses non-adjustable oil output, view that listing here:
➡️ OLEO-MAC GS370 Fixed Oil Pump 50180007BR

❓ Frequently Asked Questions

Does this oil pump fit my OLEO-MAC GS520 chainsaw?

Yes, this OEM 50170051BR oil pump is a direct replacement for OLEO-MAC GS520, GS411, GS440, GS451, 952 and EFCO MT4110, MT4400, MT4510, MT5200, 147, 152 chainsaws in the 40cc to 50cc range. No modifications needed.

How do I adjust the oil flow on this pump?

This pump features a manual adjustment screw/knob that lets you increase or decrease oil output. Turn clockwise to reduce flow, counter-clockwise to increase. Ideal for matching oil delivery to different bar lengths.

Is this a genuine OLEO-MAC part?

Yes, this is a genuine OLEO-MAC OEM part with original OEM number 50170051BR. Factory-spec quality guaranteed. We are an authorised Oleo-Mac dealer, supplying genuine spare parts with official manufacturer support.

How long does shipping take?

All orders ship within 24-48 hours from our warehouse. Worldwide delivery available via Registered e-Package / Standard Shipping, UPS, DHL, FedEx and EMS. Tracking provided for every order.

📦 Package Includes

✅ Oil Pump Assembly ×1
✅ Drive Gear / Worm ×1 (pre-installed)
✅ Adjustment Screw / Knob ×1
✅ Mounting Screws ×2 (if applicable)
✅ Condition: Brand New
✅ Quality: Genuine OLEO-MAC OEM

🛡️ Quality Guarantee

This genuine OLEO-MAC 50170051BR oil pump is built to exact Emak Group factory specifications. Features adjustable flow control for precise chain lubrication across varying bar lengths and cutting conditions. Direct replacement — no modifications required. We are an authorised Oleo-Mac dealer, supplying genuine spare parts with official manufacturer support. Trusted by outdoor power equipment repair professionals worldwide.

Take Full Control of Your Chain Lubrication.

⏱ In Stock • Ships within 24-48hrs

Genuine OLEO-MAC 50170051BR. Authorised Source. Professional Grade.

🛒 View Item & Add to Cart

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Tags: OLEO-MAC GS520, oil pump, 50170051BR, EFCO MT4110, MT5200, adjustable flow, 40-50cc

Specifications
Country of Origin	IT/CN
Material	Alloy
OEM Part Number	Emak 50170051BR
Cross Reference / Interchange	50170051A,Emak 50170051AR
Fits Brand	Emak/Oleo-Mac ,efco
Fits Models	Oleo-Mac GS411 GS451 GS520/952 ,940C/GS410C,GS410CX/941CX,947, Efco MT4110-4400-4510 ,MT5200,140S,147,152 40~50cc Chainaws
Genuine / Aftermarket	Genuine/OEM